{"type":"FeatureCollection","features":[{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14340","geometry":{"type":"Point","coordinates":[149.849932,-33.597266]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14340,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655708","IGSN":"10.60494/1ga0-n571","SAMPLENO":9655708,"SAMPLE_ID":"HB83","AGE_MA":331.6,"AGE_MA_UNCERTAINTY":2,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":null,"NUMBER_OF_ANALYSES":32,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II & SHRIMP RG","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Zircon rims. This is a pooled age from 2 analytical sessions on the same sample using SHRIMP RG for 1st session (332.1 +/- 3.2 Ma; MSWD = 0.89) and SHRIMP II for the 2nd session (331.3 +/- 2.5 Ma; MSWD 1.00).","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":17834,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU17834","STRAT_UNIT_NAME":"Tarana Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Tarana monzogranite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"monzogranite","MODE_OF_OCCURRENCE":"pluton","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Jeon and Williams 2018 paraphrased: \"The sample was collected from the central region of the Tarana body, is a pink, coarse-grained, equigranular biotite monzogranite with K-feldspar phenocrysts (<\/= 30 mm long). Tarana is the largest granite body of the LCG (Lachlan Carboniferous Granites), and was emplaced as a zoned pluton or series of plutons in sequence from west to east.\" Zircons are described as fine (30-80 um diameter), euhedral to subhedral and sometimes elongate, light honey coloured to slightly milky, clear to cloudy grains with two modes in aspect ratio, dominantly 1-3, less commonly 4-5. CL imaging showed that about 5% of the grains contained cores. Parallel zoning was common in the more elongate grains.\"","SAMPLING_FEATURE_NAME":"HB83","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917443","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-33.597266,"LONG_GDA94":149.849932,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jeon, H.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75826","AGE_REF":"Jeon, H., Williams, I.S., 2018. Trace inheritance—Clarifying the zircon O-Hf isotopic fingerprint of I-type granite sources: Implications for the restite model. 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The Zircon grains are structurally homogeneous, subhedral to euhedral elongate crystals, commonly broken and containing some inclusions.\"","SAMPLING_FEATURE_NAME":"90-165","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917383","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-33.62357,"LONG_GDA94":148.99118,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Perkins, C.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"42802","AGE_REF":"Perkins, C., McDougall, I., Walshe, J.L., 1992. Timing of shoshonitic magmatism and gold mineralization, Sheahan-Grants and Glendale, New South Wales. 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Not directly reported in Meffre et al 2007","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":98,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU98","STRAT_UNIT_NAME":"Adaminaby Group","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Adaminaby Group, south of Lyndhurst","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"medium-coarse grained siliciclastic rock","LITHOLOGY":"sandstone","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Quartz-rich sandstone. Contain mostly quartz (74 - 96%) with almost no volcanic fragments (50.2%) and, more importantly, no mafic volcanic fragments.","SAMPLING_FEATURE_NAME":"BLRS0096","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917410","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-33.73105,"LONG_GDA94":149.096586,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Meffre, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"63289","AGE_REF":"Meffre, S., Scott, R.J., Glen, R.A., Squire, R.J., 2007. Re-evaluation of contact relationships between Ordovician volcanic belts and the quartz-rich turbidites of the Lachlan Orogen. 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This was indistinguishable from the age of OGY (338.0 +/- 2.1 Ma). Pooling the two mean ages gave a weighted mean age of 338.6 ± 1.7 Ma (n = 31) for the Oberon granite.","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":14480,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU14480","STRAT_UNIT_NAME":"Oberon Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Oberon Granodiorite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granodiorite","MODE_OF_OCCURRENCE":"pluton","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Jeon and Williams 2018 paraphrased: \"Oberon is a medium to coarse-grained, equigranular biotite-hornblende granodiorite, and the northernmost pluton of the LCG that does not contain pink K-feldspar megacrysts. It intruded Middle to Late Ordovician turbidites (Adaminaby Group) and the Late Ordovician Rockley Volcanics. This sample (OG16) was collected from the zoned Oberon granodiorite from the central region. Zircons are medium to coarse (50-120 um diameter), sharply euhedral, pale honey coloured, mostly clear grains with aspect ratios of 2-3. Some very large grains were turbid and inclusions were common. Sample OG16 had a small fraction (< 5%) of zircon grains that, in CL images, appeared to contain a core.\"","SAMPLING_FEATURE_NAME":"OG16","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917542","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-33.75086,"LONG_GDA94":149.812892,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jeon, H.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75826","AGE_REF":"Jeon, H., Williams, I.S., 2018. Trace inheritance—Clarifying the zircon O-Hf isotopic fingerprint of I-type granite sources: Implications for the restite model. 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Not directly reported in Meffre et al 2007","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":98,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU98","STRAT_UNIT_NAME":"Adaminaby Group","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Adaminaby Group, south of Oberon","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"medium-coarse grained siliciclastic rock","LITHOLOGY":"sandstone","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Quartz-rich sandstone","SAMPLING_FEATURE_NAME":"OB184","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917541","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-33.754,"LONG_GDA94":149.89,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Meffre, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"63289","AGE_REF":"Meffre, S., Scott, R.J., Glen, R.A., Squire, R.J., 2007. 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This was indistinguishable from the age of OG16 (339.6 +/- 3.0 Ma). Pooling the two mean ages gave a weighted mean age of 338.6 ± 1.7 Ma (n = 31) for the Oberon granite.","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":14480,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU14480","STRAT_UNIT_NAME":"Oberon Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Oberon Granodiorite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granodiorite","MODE_OF_OCCURRENCE":"pluton","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Jeon and Williams 2018 paraphrased: \"Oberon is a medium to coarse-grained, equigranular biotite-hornblende granodiorite, and the northern most pluton of the LCG that does not contain pink K-feldspar megacrysts. It intruded Middle to Late Ordovician turbidites (Adaminaby Group) and the Late Ordovician Rockley Volcanics. This sample (OGY) was collected from the zoned Oberon granodiorite, within about 500 m of the pluton margin.The features of the separated zircon grains were the same as those from OG16 (sharply euhedral, pale honey coloured, mostly clear grains with aspect ratios of 2-3. Some very large grains were turbid and inclusions were common), but these crystals were much coarser (60-150 um diameter) and clearer. CL imaging showed that a relatively large fraction of the grains (ca. 10%) appeared to contain cores.\"","SAMPLING_FEATURE_NAME":"OGY","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917544","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-33.757999,"LONG_GDA94":149.834307,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jeon, H.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75826","AGE_REF":"Jeon, H., Williams, I.S., 2018. Trace inheritance—Clarifying the zircon O-Hf isotopic fingerprint of I-type granite sources: Implications for the restite model. 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Most grains are acicular and euhedral and show well-developed concentric oscillatory zoning. Cathodoluminescence imaging reveals that many, if not most, grains grew around xenocrystic zircons, now preserved as inherited cores of variable shape and size. In some instances the magmatic zircon is represented by only a thin overgrowth.\"","SAMPLING_FEATURE_NAME":"SH2","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917564","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-33.800216,"LONG_GDA94":149.217876,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75828","AGE_REF":"Lennox, P.G., Trzebski, R., Armstrong, R., Siebel, W., 2005, Structural evolution and granite chronology of the central Molong Zone, Eastern Lachlan Fold Belt, Australia. Australian Journal of Earth Sciences, 52(1).","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120090500109102","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14186","geometry":{"type":"Point","coordinates":[149.648808,-35.748908]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14186,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655743","IGSN":"10.60494/cspc-eh91","SAMPLENO":9655743,"SAMPLE_ID":"KDD","AGE_MA":414,"AGE_MA_UNCERTAINTY":5,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":null,"NUMBER_OF_ANALYSES":16,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":24324,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU24324","STRAT_UNIT_NAME":"Kadoona Dacite Member","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Kadoona Dacite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid volcanic rock","LITHOLOGY":"dacite","MODE_OF_OCCURRENCE":"volcanic feature","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Kemp et al 2007 paraphrased: \"The I-type Kadoona Dacite (Wyborn & Chappell 1986) is an ignimbrite unit of 40 km strike length that outcrops near the northern extremity of the Glenbog Suite.The sample is a massive brownish grey, strikingly crystal-rich rock containing abundant plagioclase, strongly embayed quartz, augite and orthopyroxene phenocrysts in a devitrified groundmass mosaic with a barely discernible eutaxitic fabric. Zircons are sparsely scattered through the groundmass, and form rare inclusions in plagioclase and pyroxene crystals. Zircon inclusions also occur in phenocrysts of the other volcanic rocks examined herein. The Kadoona Dacite and Glenbog Granodiorite are regarded as the type example of a consanguineous I-type volcano-plutonic association (Wyborn & Chappell 1986; Chappell et al. 1987).\"","SAMPLING_FEATURE_NAME":"KDD","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917465","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-35.748908,"LONG_GDA94":149.648808,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Kemp, A.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73063","AGE_REF":"Kemp, A.I.S., Hawkesworth, C.J., Paterson, B.A., Foster, G.L., Kinny, P.D., Whitehouse, M.J., Maas, R., EIMF, 2008. Exploring the plutonic-volcanic link: a zircon U-Pb, Lu-Hf and O isotope study of paired volcanic and granitic units from southeastern Australia. Transactions of the Royal Society of Edinburgh: Earth Sciences, 97(4), 337-355.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1017/S0263593300001498","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14114","geometry":{"type":"Point","coordinates":[148.5766282,-35.8429043]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14114,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655744","IGSN":"10.60494/m0mr-qr77","SAMPLENO":9655744,"SAMPLE_ID":"BPZP","AGE_MA":417.2,"AGE_MA_UNCERTAINTY":2,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.7,"NUMBER_OF_ANALYSES":109,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II & SHRIMP RG","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"Boggy Plain zoned pluton crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Pooled age from 3 analytical sessions; 2 on SHRIMP II & 1 on SHRIMP RG.","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":27715,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU27715","STRAT_UNIT_NAME":"Boggy Plain Granitic Complex","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Boggy Plain zoned pluton","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":"pluton","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Ickert and Williams 2011 paraphrased: \"8 sample rocks ranging in composition from gabbro to aplite. A single sample was collected from the northern gabbro, three from each of the granodiorite and the granite, and one from the aplite. The granodiorite-through-aplite samples represent a 2.1 km, nearly north–south transect from the margin of the pluton to the core.\"","SAMPLING_FEATURE_NAME":"BPZP","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917413","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-35.8429043,"LONG_GDA94":148.5766282,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Ickert, R.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75824","AGE_REF":"Ickert, R.B., Williams, I.S., Wyborn, D., 2011. Ti in zircon from the Boggy Plain zoned pluton: implications for zircon petrology and Hadean tectonics. Contributions to Mineralogy and Petrology, 162, 447-467.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1007/s00410-010-0605-0","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14322","geometry":{"type":"Point","coordinates":[148.851687,-35.981897]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14322,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655745","IGSN":"10.60494/ae62-ny31","SAMPLENO":9655745,"SAMPLE_ID":"08PBTKBB12","AGE_MA":433.6,"AGE_MA_UNCERTAINTY":2.7,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.54,"NUMBER_OF_ANALYSES":12,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: Cameca IMS 1270 MC-ion microprobe","LABORATORY_NAME":"University of Edinburgh","AGE_INTERPRETED_FROM_SOURCE":"Finister Granodiorite crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Also known in Kemp et al 2020 as sample 08PBTKBB01","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":6655,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU6655","STRAT_UNIT_NAME":"Finister Granodiorite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Finister Granodiorite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granodiorite","MODE_OF_OCCURRENCE":"intrusion","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Kemp et al 2020 paraphrased: \"The Finister Granodiorite comprises a small lozenge-shaped pluton in the southern part of the Berridale Batholith. The body is aligned parallel to the meridional grain of the batholith, where it separates the large, dominantly S-type granitic intrusives to the west from the younger I-type granitic rocks to the east.The sample was collected from a small cluster of ~1 m high tors from the central-eastern part of the body. It is a medium, even-grained dark grey rock, with blocky plagioclase laths set in poikilitic orthoclase, reddish brown biotite plates, and ragged hornblende prisms (to 5 mm), some of which are partially replaced by small biotite aggregates.\"","SAMPLING_FEATURE_NAME":"08PBTKBB12","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917329","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-35.981897,"LONG_GDA94":148.851687,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Kemp, A.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73154","AGE_REF":"Kemp, A.I.S., Blevin, P.L., Norman, M.D., Edinburgh Ion Microprobe Facility, 2020. A SIMS U-Pb (zircon) and Re-Os (molybdenite) isotope study of the early Paleozoic Macquarie Arc, southeastern Australia: Implications for the tectono-magmatic evolution of the paleo-Pacific Gondwana margin. Gondwana Research, 82, 73-96.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.gr.2019.12.015","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14118","geometry":{"type":"Point","coordinates":[149.120242,-35.981897]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14118,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655746","IGSN":"10.60494/xcvj-9547","SAMPLENO":9655746,"SAMPLE_ID":"08TKMB2","AGE_MA":429.1,"AGE_MA_UNCERTAINTY":3.1,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.55,"NUMBER_OF_ANALYSES":10,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: Cameca IMS 1270 MC-ion microprobe","LABORATORY_NAME":"University of Edinburgh","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation of silurian mafics","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"Amphibolite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"high grade metamorphic rock","LITHOLOGY":"amphibolite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Kemp et al 2020 paraphrased: \"Sample 08TKMB02 was collected from a 50 cm wide lenticular strip of amphibolite within the Murumbucka Tonalite of the Murrumbidgee Batholith, north of the township of Cooma. The sample is a fine to medium grained, homogeneous rock with an intense foliation defined by dominant hornblende (single grains and elongate aggregates) and aligned plagioclase prisms. Slightly larger plagioclase grains (5 mm) impart a speckled appearance. Parts of this outcrop are transected by millimeter-sized felsic stringers of quartz, plagioclase and biotite, but these were excluded from the analysed portion of the sample.\"","SAMPLING_FEATURE_NAME":"08TKMB2","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917330","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-35.981897,"LONG_GDA94":149.120242,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73154","AGE_REF":"Kemp, A.I.S., Blevin, P.L., Norman, M.D., Edinburgh Ion Microprobe Facility, 2020. A SIMS U-Pb (zircon) and Re-Os (molybdenite) isotope study of the early Paleozoic Macquarie Arc, southeastern Australia: Implications for the tectono-magmatic evolution of the paleo-Pacific Gondwana margin. Gondwana Research, 82, 73-96.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.gr.2019.12.015","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14233","geometry":{"type":"Point","coordinates":[148.885959,-36.216292]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14233,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655747","IGSN":"10.60494/gmsf-sr65","SAMPLENO":9655747,"SAMPLE_ID":"BB1","AGE_MA":430,"AGE_MA_UNCERTAINTY":5,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":27134,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU27134","STRAT_UNIT_NAME":"Cootralantra Granodiorite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Cootralantra Granodiorite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granodiorite","MODE_OF_OCCURRENCE":"pluton","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Kemp et al 2007 paraphrased: \"The sample of this study is a medium grained equigranular rock with a foliation of aligned biotite plates and plagioclase prisms. Abundant cordierite is invariably replaced by sheaves of mica.\"","SAMPLING_FEATURE_NAME":"BB1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917401","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-36.216292,"LONG_GDA94":148.885959,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Kemp, A.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73063","AGE_REF":"Kemp, A.I.S., Hawkesworth, C.J., Paterson, B.A., Foster, G.L., Kinny, P.D., Whitehouse, M.J., Maas, R., EIMF, 2008. Exploring the plutonic-volcanic link: a zircon U-Pb, Lu-Hf and O isotope study of paired volcanic and granitic units from southeastern Australia. Transactions of the Royal Society of Edinburgh: Earth Sciences, 97(4), 337-355.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1017/S0263593300001498","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14128","geometry":{"type":"Point","coordinates":[149.130717,-36.230175]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14128,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655748","IGSN":"10.60494/dysz-5p74","SAMPLENO":9655748,"SAMPLE_ID":"76-3A","AGE_MA":435.2,"AGE_MA_UNCERTAINTY":6.3,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":16,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"This age is indistinguishable from the Pb/U age of the monazite in this same granodiorite sample (432.8 +/- 4.7 Ma) and the surrounding high-grade metamorphic rocks.","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":4571,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU4571","STRAT_UNIT_NAME":"Cooma Granodiorite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Cooma Granodiorite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granodiorite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Williams 2001 paraphrased: \"Sample 76-3A was collected from a large fresh boulder excavated from a deep road cut on the flank of Nanny Goat Hill in Cooma township. The granodiorite is medium grained & massive & contains a high abundance of enclaves on all scales from small clots of minerals to rock fragments up to 0.5 m diameter. The enclaves all of sedimentary derivation can be matched closely with many of the highest grade rocks in the regional aureole including metapsammite biotite schist & b&ed gneiss. The granodiorite is exceedingly quartz rich (~50%) & unequilibrated mineralogically. Aluminous phases include biotite muscovite ragged sieved & alusite up to 2 mm cordierite phenocrysts up to 15 mm (most now pinitised) & mats of fibrolitic sillimanite. K-feldspar crystals up to 4 mm commonly have myrmekite developed at their margins & plagioclase more abundant than in the migmatites commonly occurs as zoned tabular grains with calcic cores. Biotite is crowded with pleochroic haloes around inclusions of zircon & monazite. Zircon is very abundant in the Cooma Granodiorite mostly sharply euhedral & with a very similar grainsize range to zircon in the low-grade semipelites (30-250 um). It is however a complex population. Although euhedral grains dominate a few crystals are strongly rounded & the frosted surface characteristic of detrital zircon is clearly visible under an optical microscope. Aspect ratios range from 1 to ~5. Terminations with strongly developed faces predominate particularly on the larger & more equant crystals but very simple prismatic crystals with only prisms & pyramids are common among the finer grains. Cathodoluminescence images reveal the reason for this variety. Virtually all zircons contain a core & it was principally the size & shape of that core that determined the size & shape of the final crystal. At one end of the spectrum are crystals in which the core is very large (>100 um) & strongly rounded.","SAMPLING_FEATURE_NAME":"76-3A","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917363","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-36.230175,"LONG_GDA94":149.130717,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Williams, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"23546","AGE_REF":"Williams, I.S., 2001. Response of detrital zircon and monazite, and their U-Pb isotopic systems, to regional metamorphism and host-rock partial melting, Cooma Complex, southeastern Australia. Australian Journal of Earth Sciences, 48(4), 557-580.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1046/j.1440-0952.2001.00883.x","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14158","geometry":{"type":"Point","coordinates":[149.745669,-33.89673]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14158,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655716","IGSN":"10.60494/ry6g-n656","SAMPLENO":9655716,"SAMPLE_ID":"Greenslope","AGE_MA":425,"AGE_MA_UNCERTAINTY":11,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":null,"NUMBER_OF_ANALYSES":20,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Monazite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"EPMA: wavelength dispersive spectrometer (WDS)","ANALYTICAL_COLLECTION_SYSTEM":"EPMA: Cameca SX50 electron microprobe","LABORATORY_NAME":"University of Tasmania","AGE_INTERPRETED_FROM_SOURCE":"formation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":29670,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU29670","STRAT_UNIT_NAME":"Greenslopes Porphyry","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Greenslope Granite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":"intrusion","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Meffre 2003 paraphrased \"The outcrop is a partially altered porphyritic granite intrusion, which in thin section contains large quartz plagioclase and sericitised felspar phenocrysts in a granophyric textured groundmass with minor hornblende biotite, epidote, chlorite and zircon. The granite also contains rare crystals of monazite, some in the groundmass and some as inclusions in the large quartz phenocrysts.\"","SAMPLING_FEATURE_NAME":"Greenslope","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917437","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-33.89673,"LONG_GDA94":149.745669,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Meffre, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75831","AGE_REF":"Meffre, S., 2003, Review of mapping on the Oberon 1:100 000 geological map sheet. Geological Survey of New South Wales Report GS, GS2003/224.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/report/R00047827","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14213","geometry":{"type":"Point","coordinates":[149.730154,-33.918711]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14213,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655717","IGSN":"10.60494/cx2b-4403","SAMPLENO":9655717,"SAMPLE_ID":"Swatchfield","AGE_MA":437,"AGE_MA_UNCERTAINTY":8,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":null,"NUMBER_OF_ANALYSES":21,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: unknown model","LABORATORY_NAME":"University of Tasmania","AGE_INTERPRETED_FROM_SOURCE":"the age of zircons","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":26920,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU26920","STRAT_UNIT_NAME":"Swatchfield Monzonite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Swatchfield Monzonite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate intrusive rock","LITHOLOGY":"monzonite","MODE_OF_OCCURRENCE":"intrusion","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Meffre 2003 paraphrased \"The Swatchfield Monzonite rocks contain altered plagioclase, altered clinopyroxene and apatite with interstitial K-feldspar and minor quartz in some rocks. Both the K-feldspar and plagioclase are about equal in proportion. The sample has low SiO2 and TiO2 together with high P2O5 and K2O typical of the Late Ordovician volcanics and monzonite from the Molong Belt. The zircons analysed were large and euhedral with regular zoning typical of zircons derived from magmatic rocks.\"","SAMPLING_FEATURE_NAME":"Swatchfield","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917568","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-33.918711,"LONG_GDA94":149.730154,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Meffre, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75831","AGE_REF":"Meffre, S., 2003, Review of mapping on the Oberon 1:100 000 geological map sheet. Geological Survey of New South Wales Report GS, GS2003/224.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/report/R00047827","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14167","geometry":{"type":"Point","coordinates":[148.9249738,-33.99318]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14167,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655718","IGSN":"10.60494/c78d-2k61","SAMPLENO":9655718,"SAMPLE_ID":"PL286","AGE_MA":425.2,"AGE_MA_UNCERTAINTY":3.5,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.2,"NUMBER_OF_ANALYSES":16,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"age of zircon crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":20699,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU20699","STRAT_UNIT_NAME":"Wyangala Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Wyangala Granite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granodiorite","MODE_OF_OCCURRENCE":"pluton","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Lennox et al 2014 paraphrased: \"The Wyangala Granite is a foliated, porphyritic biotite granite with megacrystic K-feldspar up to 100 mm diameter. The chemical and isotopic characteristics of the granite are consistent with it being S-type (derived from supracrustal source rocks), although its composition has been modified by post-emplacement chemical alteration. The sample has low deformation, and is a grey, megacrystic granodiorite containing 20-30% K-feldspar megacrysts, 5-10% plagioclase phenocrysts, 40-50% quartz and 5-15% biotite alteration products. The K-feldspar megacrysts are subhedral to anhedral, white tabular crystals up to 12x35 mm in size. Deformation has resulted in some megacrysts being fractured and developing perthitic microcline. The blocky megacrysts commonly have biotite tails. Cathodoluminescence imaging in advance of the dating showed that nearly all of the zircon grains consist of a central core, commonly up to 100um in diameter, surrounded by an overgrowth of zircon, up to 100um thick at the ends of the grains, with simple concentric igneous growth zoning. The cores are interpreted as unmelted zircon from the source of the granite (restite), and the overgrowths as zircon precipitated from the melt phase of the magma in the period between the start of partial melting and final post-emplacement crystallisation.\"","SAMPLING_FEATURE_NAME":"PL286","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917558","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-33.99318,"LONG_GDA94":148.9249738,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Lennox, P.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"69539","AGE_REF":"Lennox, P.G., Forster, M.A., Williams, I.S., 2014. Emplacement and deformation ages of the Wyangala Granite, Cowra, NSW. Australian Journal of Earth Sciences, 61/4, 607-618.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099.2014.897648","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14195","geometry":{"type":"Point","coordinates":[145.24485121,-30.39265994]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14195,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655719","IGSN":"10.60494/vkpz-qr12","SAMPLENO":9655719,"SAMPLE_ID":"RDT7","AGE_MA":484,"AGE_MA_UNCERTAINTY":8,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":0.52,"NUMBER_OF_ANALYSES":5,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7700x","LABORATORY_NAME":"University of Newcastle, Australia","AGE_INTERPRETED_FROM_SOURCE":"maximum depositional age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":78367,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU78367","STRAT_UNIT_NAME":"Louth Volcanics","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Louth Volcanics","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"medium-coarse grained siliciclastic rock","LITHOLOGY":"sandstone","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Fine silty sandstone. Dwyer et al 2018 paraphrased: \"Sample RTD7 is a metasedimentary rock obtained from within the magnetic anomaly zone and interpreted to be interbedded with the Louth Volcanics...(it) is a poorly outcropping metasedimentary rock isolated by Quaternary floodplain deposits. It was originally assigned as a possible Cobar Group metasediment by Loudon, Menzies, and Wallis (1965), with the rocks within the outcrop described as ‘contorted quartzite, sandstone, phyllite and slate.’ The RDT 7 outcrop, located within a prominent magnetic feature that is related to the Louth Volcanics, is subvertically bedded, contains a strong cleavage and is likely to be part of the Louth Volcanics package. Tuffs and intrusive calc-alkaline dolerites exist within drill holes MINOL33, MINOL30 and MINOL21, which are located within the geophysical anomaly associated with the Louth Volcanics. In associated tuffs, sedimentary rocks and field samples, bedding parallel and axial planar fabrics were observed (MINOL21-05, MINOL30-04, MINOL33-06, RDT7).\"","SAMPLING_FEATURE_NAME":"RDT7","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917561","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Thomson Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-30.3926599446,"LONG_GDA94":145.2448512138,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"published report, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Dwyer, R.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73175","AGE_REF":"Dwyer, R.C., Collins, W.J., Hack, A.C., Hegarty, R., Huang, H.-Q., 2018. Age and tectonic significance of the Louth Volcanics: implications for the evolution of the Tasmanides of eastern Australia. Australian Journal of Earth Sciences, 65(7-8), 1049-1069.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099.2018.1469392","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14102","geometry":{"type":"Point","coordinates":[150.019961,-34.852389]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14102,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655734","IGSN":"10.60494/6hrr-de20","SAMPLENO":9655734,"SAMPLE_ID":"15212","AGE_MA":305.6,"AGE_MA_UNCERTAINTY":2.5,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.3,"NUMBER_OF_ANALYSES":11,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"mineralisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Cassiterite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7700x","LABORATORY_NAME":"University of Newcastle, Australia","AGE_INTERPRETED_FROM_SOURCE":"age determination of mineralisation event","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Results interpreted by C. Barry. 11 of 20 analyses used to calculate this age. 17 individual grains, 3 duplicate analyses. This (age) has been interpreted as the most accurate representation of the timing of cassiterite crystallisation.","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"Oneill's Lode, Tolwong","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"medium-coarse grained siliciclastic rock","LITHOLOGY":"sandstone","MODE_OF_OCCURRENCE":"vein","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Barry 2015 paraphrased \"Lode cassiterite in fine grained sandstone; medium to coarse grained (~1-6 mm); subhedral.","SAMPLING_FEATURE_NAME":"15212","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917335","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-34.852389,"LONG_GDA94":150.019961,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"CalEnergy Resources (Australia) Ltd","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75815","AGE_REF":"Barry, C. M., 2015. U-Pb LA-ICP-MS geochronology of cassiterites from New South Wales and the Northern Territory, Australia. Geological Survey of New South Wales Report GS, 2016/0206, 34.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/report/R00052516","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14336","geometry":{"type":"Point","coordinates":[149.753843,-34.853731]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14336,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655735","IGSN":"10.60494/fv47-5f05","SAMPLENO":9655735,"SAMPLE_ID":"8828AJJ091.1","AGE_MA":409,"AGE_MA_UNCERTAINTY":4,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.58,"NUMBER_OF_ANALYSES":14,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"crystallisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":70029,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU70029","STRAT_UNIT_NAME":"Newacres Ignimbrite Member","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Bindook Volc (equivelant)","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid volcanic rock","LITHOLOGY":"rhyolite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Thomas & Pogson 2012 paraphrased: \"The Quialigo Volcanics occurs in the western belt of the Bindook Group. The Newacres Ignimbrite Member, a constituent unit of the Quialigo Volcanics, comprises poorly stratified siliceous welded ignimbrites that fall into two compositionally distinct groups (Simpson 2006a): a crystal-rich group and a less crystal-rich group. The crystal-rich ignimbrites have 35-50% whole and fragmented phenocrysts up to 6 mm in diameter comprising plagioclase (15-25%), quartz (10-15%), and K-feldspar (up to 7%), with minor biotite, and trace hornblende, black opaque minerals, zircon, apatite, and possibly some replaced pyroxene. The matrix is cryptocrystalline to finely microcrystalline with plastically deformed welded shards. The less crystal-rich ignimbrites have 15-20% whole and fragmented phenocrysts up to 6 mm comprising plagioclase (up to 8%), quartz (up to 10%), K-feldspar (up to 5%), and biotite (<1%). Accessory amounts of black opaque minerals, zircon, tourmaline, are present, and a single garnet grain was found in one sample. The matrix is cryptocrystalline to barely microcrystalline with a pronounced eutaxitic foliation.\" Wilde 2002 paraphrased \"The sample is extracted from a rhyolite, where the zircon crystals are pale pink in colour. Most crystals are well formed with straight tabular faces. Some have pyramidal faces, but these make up less than forty percent of the population. Fractures are rare and some grains contain minute inclusions of apatite. The average length to width ratio is 2:1, with rare crystals extending to 3:1.\"","SAMPLING_FEATURE_NAME":"8828AJJ091.1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917378","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-34.853731,"LONG_GDA94":149.753843,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Pogson, D.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"68592; 75841","AGE_REF":"Thomas, O.D., Pogson, D.J., 2012, Goulburn 1:250 000 geological sheet SI/55-12, 2nd Edition Explanatory notes. Geological Survey of New South Wales, 69p, chart, CD.; Wilde, S.A., 2002. SHRIMP U-Pb dating of four samples from the Goulburn 1:250 000 map sheet NSW. Geological Survey of New South Wales Report GS, 2009/0158, 21.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/product/650/943385; https://search.geoscience.nsw.gov.au/report/R00079694","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14176","geometry":{"type":"Point","coordinates":[149.777196,-34.878322]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14176,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655736","IGSN":"10.60494/7bm6-gq94","SAMPLENO":9655736,"SAMPLE_ID":"8828AJJ095.1","AGE_MA":414,"AGE_MA_UNCERTAINTY":4,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.74,"NUMBER_OF_ANALYSES":15,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"crystallisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":69887,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU69887","STRAT_UNIT_NAME":"Back Station Ignimbrite Member","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Gundary Fmt","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid volcanic rock","LITHOLOGY":"dacite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Thomas & Pogson 2012 paraphrased: \"The Gundary Volcanics comprises a succession of volcanic and high-level intrusive rocks of diverse composition and facies. In the Gundary Syncline, these volcanic rocks mainly consist of a thick sequence of crystal-rich, two pyroxene and hornblende-bearing, dacitic, welded ignimbrite of the Back Station Ignimbrite Member.\" Wilde 2002 paraphrased \"The sample is extracted from a dacite, where the zircon crystals are colourless to pale brownish pink in colour. They form a uniform population of rather stubby laths, with an average length of width ratio of 1.5:1. The crystals are generally sub- to euhedral with well developed prism faces, though only about sixty percent of the grians show well-devleoped pyramidal terminations. The majority of crystals are clear in transmitted light and approximatly fifty percent contain scattered inclusions or apatite.\"","SAMPLING_FEATURE_NAME":"8828AJJ095.1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917379","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-34.878322,"LONG_GDA94":149.777196,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Pogson, D.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"68592; 75841","AGE_REF":"Thomas, O.D., Pogson, D.J., 2012, Goulburn 1:250 000 geological sheet SI/55-12, 2nd Edition Explanatory notes. Geological Survey of New South Wales, 69p, chart, CD.; Wilde, S.A., 2002. SHRIMP U-Pb dating of four samples from the Goulburn 1:250 000 map sheet NSW. Geological Survey of New South Wales Report GS, 2009/0158, 21.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/product/650/943385; https://search.geoscience.nsw.gov.au/report/R00079694","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14389","geometry":{"type":"Point","coordinates":[149.715841,-34.881872]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14389,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655737","IGSN":"10.60494/qpr9-8947","SAMPLENO":9655737,"SAMPLE_ID":"8828ODT0131.1","AGE_MA":411,"AGE_MA_UNCERTAINTY":3,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.3,"NUMBER_OF_ANALYSES":21,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"crystallisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":70029,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU70029","STRAT_UNIT_NAME":"Newacres Ignimbrite Member","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Bindook Volc (equivelant)","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid volcanic rock","LITHOLOGY":"rhyolite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Thomas & Pogson 2012 paraphrased: \"The Quialigo Volcanics occurs in the western belt of the Bindook Group. The Newacres Ignimbrite Member, a constituent unit of the Quialigo Volcanics, comprises poorly stratified siliceous welded ignimbrites that fall into two compositionally distinct groups (Simpson 2006a): a crystal-rich group and a less crystal-rich group. The crystal-rich ignimbrites have 35-50% whole and fragmented phenocrysts up to 6 mm in diameter comprising plagioclase (15-25%), quartz (10-15%), and K-feldspar (up to 7%), with minor biotite, and trace hornblende, black opaque minerals, zircon, apatite, and possibly some replaced pyroxene. The matrix is cryptocrystalline to finely microcrystalline with plastically deformed welded shards. The less crystal-rich ignimbrites have 15-20% whole and fragmented phenocrysts up to 6 mm comprising plagioclase (up to 8%), quartz (up to 10%), K-feldspar (up to 5%), and biotite (<1%). Accessory amounts of black opaque minerals, zircon, tourmaline, are present, and a single garnet grain was found in one sample. The matrix is cryptocrystalline to barely microcrystalline with a pronounced eutaxitic foliation.\" Wilde 2002 paraphrased \"The sample is extracted from a rhyolite, where the zircon crystals form a single population of pale pink zircons. They are mostly euhedral with well-developed prismatic and pyramidal terminations, with an average length to width ratio of 2:1. Some of the grains show weak oscillatory zoning and most contain one or more minute inclusions of apatite.\"","SAMPLING_FEATURE_NAME":"8828ODT0131.1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917380","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-34.881872,"LONG_GDA94":149.715841,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Pogson, D.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"68592; 75841","AGE_REF":"Thomas, O.D., Pogson, D.J., 2012, Goulburn 1:250 000 geological sheet SI/55-12, 2nd Edition Explanatory notes. Geological Survey of New South Wales, 69p, chart, CD.; Wilde, S.A., 2002. SHRIMP U-Pb dating of four samples from the Goulburn 1:250 000 map sheet NSW. Geological Survey of New South Wales Report GS, 2009/0158, 21.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/product/650/943385; https://search.geoscience.nsw.gov.au/report/R00079694","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14185","geometry":{"type":"Point","coordinates":[148.858704,-34.964081]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14185,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655738","IGSN":"10.60494/a2f8-bk75","SAMPLENO":9655738,"SAMPLE_ID":"HV1","AGE_MA":430,"AGE_MA_UNCERTAINTY":4,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":8184,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU8184","STRAT_UNIT_NAME":"Hawkins Volcanics","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Hawkins Dacite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid volcanic rock","LITHOLOGY":"dacite","MODE_OF_OCCURRENCE":"volcanic feature","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Kemp et al 2007 paraphrased: \"The volcanic rocks are highly porphrytic with dacite phenocrysts containing quartz, plagioclase, biotite, cordierite, orthopyroxene and xenocrysts of garnet (Chappell et al, 1993). Zircons occur as isolated crystals in the groundmass and typically smaller inclusions in all phenocrysts except garnet. They are especially prominent in cordierite, both where this mineral forms euhedral-subhedral phenocrysts and where it occurs as symplectites with orthopyroxene around garnet.\"","SAMPLING_FEATURE_NAME":"HV1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917447","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-34.964081,"LONG_GDA94":148.858704,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73063","AGE_REF":"Kemp, A.I.S., Hawkesworth, C.J., Paterson, B.A., Foster, G.L., Kinny, P.D., Whitehouse, M.J., Maas, R., EIMF, 2008. Exploring the plutonic-volcanic link: a zircon U-Pb, Lu-Hf and O isotope study of paired volcanic and granitic units from southeastern Australia. Transactions of the Royal Society of Edinburgh: Earth Sciences, 97(4), 337-355.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1017/S0263593300001498","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14059","geometry":{"type":"Point","coordinates":[150.449797,-35.142356]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14059,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655739","IGSN":"10.60494/08de-7z48","SAMPLENO":9655739,"SAMPLE_ID":"15316","AGE_MA":418,"AGE_MA_UNCERTAINTY":24,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.9,"NUMBER_OF_ANALYSES":5,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"mineralisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Cassiterite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7700x","LABORATORY_NAME":"University of Newcastle, Australia","AGE_INTERPRETED_FROM_SOURCE":"age determination of mineralisation event","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Results interpreted by C. Barry. 5 of 25 analyses used to calculate this age. 25 individual grains. (This age) is interpreted as the best representation of the timing of cassiterite crystallisation","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"Wandandian tin field, Wandandian","MATERIAL_TYPE":"sediment","LITHOLOGY_GROUP":"sediment","LITHOLOGY":"alluvial sediment","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"unconsolidated surficial specimen","SAMPLE_DESC":"Barry 2015 paraphrased \"Alluvial cassiterite; fine grained ((<1 mm); anhedral; angular to sub-angular; associated with ilmenite, quartz and minor other minerals","SAMPLING_FEATURE_NAME":"15316","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917336","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Sydney Basin","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-35.142356,"LONG_GDA94":150.449797,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"CalEnergy Resources (Australia) Ltd","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75815","AGE_REF":"Barry, C. M., 2015. U-Pb LA-ICP-MS geochronology of cassiterites from New South Wales and the Northern Territory, Australia. Geological Survey of New South Wales Report GS, 2016/0206, 34.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/report/R00052516","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14228","geometry":{"type":"Point","coordinates":[148.156085,-35.153581]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14228,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655740","IGSN":"10.60494/45ev-sg77","SAMPLENO":9655740,"SAMPLE_ID":"88843136","AGE_MA":428,"AGE_MA_UNCERTAINTY":6,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":14,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"age estimate for Frampton Volcanics","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"This sample in Stuart-Smith et al 1998 is incorrectly named as 89843202, which in  - is a Gocup Granite sample and the coords do not match up with Frampton Volcanics","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":6881,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU6881","STRAT_UNIT_NAME":"Frampton Volcanics","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Frampton Volcanics","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid volcanic rock","LITHOLOGY":"rhyolite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"unknown","SAMPLE_DESC":"Stuart-Smith et al 1998 paraphrased \" The sample is from the Frampton volcanics composed of meta-rhyolite, meta-rhyodacite, and siliceous slate. This unit intertongues with the Gooandra Volcanics and formed in a subaerial to shallow water environment (Basden, 1986). Zircons fom this sample are clear, often extensively cracked, and show a range of morphologies, from elongate, to more equant, highly faceted grains. A number of the more elongate grains contain axial rod-like glass inclusions. Zoning is uncommon, and no obvious cores are present.\"","SAMPLING_FEATURE_NAME":"88843136","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917381","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-35.153581,"LONG_GDA94":148.156085,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75836","AGE_REF":"Stuart-Smith, P.G., Hill, R.I., Rickard, M.J., Etheridge, M.A., 1992. The stratigraphy and deformation history of the Tumut region: Implications for the development of the Lachlan Fold Belt. Tectonophysics, 214(1-4), 211-237.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/0040-1951(92)90198-F","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14423","geometry":{"type":"Point","coordinates":[148.062156,-35.275262]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14423,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655741","IGSN":"10.60494/2njn-1f71","SAMPLENO":9655741,"SAMPLE_ID":"97-021","AGE_MA":411.3,"AGE_MA_UNCERTAINTY":6,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":16,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"age for the Avenall Basic Intrusive Complex","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":23347,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU23347","STRAT_UNIT_NAME":"Avenall Basic Intrusive Complex","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"quartz diorite of the Donkey Gap body","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate intrusive rock","LITHOLOGY":"diorite","MODE_OF_OCCURRENCE":"intrusion","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Cairns 1997 paraphrased:\"Quartz Diorite. Plagioclase (up to 1mm) is the dominant component of this unit comprising some 50 % of the samples examined. Plagioclase showed both multiple and simple Carlsbad twins, however optical definition of the anorthite content was ambiguous. Pale green pleochroic hornblende (15-20%) was the other major mineral component. It is dominantly found has subhedral grains, although the presence of some euhedral twinned crystals is also noted. Most of the hornblende was primary although a number of examples were found where hornblende was found forming a rim around a core of pyroxene (?clinopyroxene ). Quartz, potassium feldspar and biotite were all found in varying amounts up to 5%. Accessory minerals are epidote, chlorite with minor opaques. Although the samples showed signs of alteration to epidote and chlorite none of the samples observed were seen to be deformed.\"","SAMPLING_FEATURE_NAME":"97-021","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917394","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-35.275262,"LONG_GDA94":148.062156,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Cairns, B.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75760","AGE_REF":"Cairns, B.J., 1997, Geology of the Adelong Goldfield in: Geological Survey of NSW, 2021. NSW Isotope Geochemistry & Geochronology Samples Dataset. Unpublished B.Sc. Honours thesis, Australian National University.","AGE_PUBLICATION_LINKS":"https://geonetwork.geoscience.nsw.gov.au/geonetwork/srv/eng/catalog.search#/metadata/4c0856a9-a933-42ec-b7c0-0063d4509828","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14420","geometry":{"type":"Point","coordinates":[148.06561,-35.29386]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14420,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655742","IGSN":"10.60494/t7gq-wb74","SAMPLENO":9655742,"SAMPLE_ID":"97-133","AGE_MA":446.6,"AGE_MA_UNCERTAINTY":3.4,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":15,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"age for the Wandalga Granodiorite","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":20423,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU20423","STRAT_UNIT_NAME":"Wondalga Granodiorite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"phase 1 of the Wondalga Granodiorite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"monzogranite","MODE_OF_OCCURRENCE":"intrusion","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Cairns 1997 paraphrased: The first variant in the Wondalga Granodiorite is described as the phase 1 intrusive body. It is dominantly light grey fine to medium grained monzogranite. This phase is found towards the centre of the pluton and is surrounded by granites of phase 2. This phase is dominantly equigranular although a fine grained graphically intergrown matrix is often apparent. K-feldspar (30%) is the dominant feldspar, generally found as late crystallising perthite, microcline and mild alteration to sericite. The dominant ferro-magnesian component is biotite (1-10%), although the modal proportion of this is highly variable and in places would seem to dependant on the extent of metasomatism that has taken place. Quartz (42%) is anhedral and up to three millimeters in diameter, undulose extinction and sutured grain boundaries were evident. Plagioclase (25%) is anhedral to subhedral and shows both regular zonation and albite twinning with mild to moderate alteration to sericite and epidote is found throughout most of this phase.","SAMPLING_FEATURE_NAME":"97-133","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917395","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-35.29386,"LONG_GDA94":148.06561,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Cairns, B.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75760","AGE_REF":"Cairns, B.J., 1997, Geology of the Adelong Goldfield in: Geological Survey of NSW, 2021. NSW Isotope Geochemistry & Geochronology Samples Dataset. Unpublished B.Sc. Honours thesis, Australian National University.","AGE_PUBLICATION_LINKS":"https://geonetwork.geoscience.nsw.gov.au/geonetwork/srv/eng/catalog.search#/metadata/4c0856a9-a933-42ec-b7c0-0063d4509828","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14823","geometry":{"type":"Point","coordinates":[139.34033193,-30.26176089]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14823,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655832","IGSN":"10.60494/p0s0-8w49","SAMPLENO":9655832,"SAMPLE_ID":"ME01GE1","AGE_MA":424,"AGE_MA_UNCERTAINTY":1,"AGE_CONFIDENCE_LEVEL":"1 standard deviation","AGE_MSWD":null,"NUMBER_OF_ANALYSES":1,"CALCULATION_TYPE":"concordia (Ludwig)","GEOLOGICAL_EVENT":"hydrothermal alteration","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/235U and 206Pb/238U","MINERAL":"Monazite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"isotope dilution: ion exchange chromatography","ANALYTICAL_COLLECTION_SYSTEM":"TIMS: Finnigan MAT 262","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"Hydrothermal alteration within Mount Gee-type quartz epithermal system","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Single bulk analysis of monazite. MSWD of concordance = 1.4, probability of fit (concordance) = 0.14. This monazite fraction was characterised by rather low U contents (217 ppm), and low radiogenic lead contents. In these respects, this monazite fraction is similar to the monazites analysed by Pidgeon(1979) from the hematitic breccia of the Mt Gee area, for which an age of 440 +/- 50 Ma was derived by extrapolation to zero discordance. Our determinations fall within the same range and, unfortunately, are no more precise. Contrary to the findings of  Pidgeon (1979), the monazite fraction we analysed was not characterised by a low initial Th/U ratio,but is similar to the values for the monazites from the British Empire Granite.","AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":27205,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU27205","STRAT_UNIT_NAME":"Mount Gee Sinter","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Mt Gee Formation","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metasomatic rock","LITHOLOGY":"sinter","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Elburg et al. (2003): The area from which our quartz–hematite sample ME01GE1 was derived is not from the Mt Gee area itself, but from a location 4.5 km to the south of Mt Gee. Material at this smaller outcrop has mineralogy and textures like rocks at the classical Mt Gee locality (Drexel & Major 1990).","SAMPLING_FEATURE_NAME":"ME01GE1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917614","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Mount Painter Block","GEOLOGICAL_REGION_NAME":"Adelaide Region","REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-30.2617608919,"LONG_GDA94":139.3403319335,"ELEV_M_AHD":null,"ACCURACY_M":200,"LOCATION_METHOD":"published report, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"University of Adelaide","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"24593","AGE_REF":"Elburg, M.A., Bons, P.D., Foden, J., Brugger, J., 2003. A newly defined Late Ordovician magmatic-thermal event in the Mt Painter Province, northern Flinders Ranges, South Australia. Australian Journal of Earth Sciences, 50(4), 611-631.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1046/j.1440-0952.2003.01016.x","AGE_ENTRY_DATE":"2024-07-12","AGE_LAST_UPDATED":"2024-09-27"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14783","geometry":{"type":"Point","coordinates":[139.33043915,-30.2204751]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14783,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655833","IGSN":"10.60494/gft2-ev64","SAMPLENO":9655833,"SAMPLE_ID":"JOEL1","AGE_MA":2.22,"AGE_MA_UNCERTAINTY":0.31,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":2,"CALCULATION_TYPE":"lower concordia intercept","GEOLOGICAL_EVENT":"hydrothermal alteration","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/235U and 206Pb/238U","MINERAL":"Monazite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"isotope dilution: ion exchange chromatography","ANALYTICAL_COLLECTION_SYSTEM":"TIMS: Finnigan MAT 262","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"Remobilisation of U during recent hydrothermal alteration.","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Two-point (monazite-torbernite) Wetherill discordia regression. Monazite analysis is from sample Joel1; torbernite analysis is from nearby sample DU1. The results of both intercepts have been attributed to both samples. Asdymmetric 95% confidence intervals are +34/-36 Ma and +0.29/-0.33 Ma on the upper and lower intercepts respectively.","AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"mineral","LITHOLOGY_GROUP":"metasomatic rock","LITHOLOGY":"mineralisation","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"mine site specimen","SAMPLE_DESC":"Elburg et al. (2003): Samples from the primary uranium mineralisation (comprising sample JOEL1, which is monazite-(Ce), and sample SMP1, which is an euxenite group mineral) were derived from the Number 2 workings, NW of Mt Gee. The euxenite group mineral (represented by SMP1), with simplified chemical formula (U,Fe,Y)NbO4, is metamict and highly inhomogeneous. The present-day compositions vary from U-dominant (ishikawaite) to Fe-dominant (unnamed end member). Coarse-grained monazite-(Ce), represented by JOEL1, is an abundant primary mineral in the hematite breccia at the Number 2 workings, in places constituting several volume percent of the ore. An early wet-chemical age determination of the primary uranium mineralisation yielded 410 +/- 50 Ma (Kleeman, 1946).","SAMPLING_FEATURE_NAME":"Mount Gee No. 2 workings","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917615","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Mount Painter Block","GEOLOGICAL_REGION_NAME":"Adelaide Region","REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-30.2204751032,"LONG_GDA94":139.3304391484,"ELEV_M_AHD":null,"ACCURACY_M":200,"LOCATION_METHOD":"published report, method unknown","LOCATION_DESC":"Number 2 workings, NW of Mt Gee","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"University of Adelaide","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"24593","AGE_REF":"Elburg, M.A., Bons, P.D., Foden, J., Brugger, J., 2003. A newly defined Late Ordovician magmatic-thermal event in the Mt Painter Province, northern Flinders Ranges, South Australia. Australian Journal of Earth Sciences, 50(4), 611-631.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1046/j.1440-0952.2003.01016.x","AGE_ENTRY_DATE":"2024-07-12","AGE_LAST_UPDATED":"2024-09-27"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14784","geometry":{"type":"Point","coordinates":[139.33043915,-30.2204751]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14784,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655833","IGSN":"10.60494/gft2-ev64","SAMPLENO":9655833,"SAMPLE_ID":"JOEL1","AGE_MA":462,"AGE_MA_UNCERTAINTY":35,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":2,"CALCULATION_TYPE":"upper concordia intercept","GEOLOGICAL_EVENT":"mineralisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/235U and 206Pb/238U","MINERAL":"Monazite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"isotope dilution: ion exchange chromatography","ANALYTICAL_COLLECTION_SYSTEM":"TIMS: Finnigan MAT 262","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"Primary U mineralisation of Delamerian age.","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Two-point (monazite-torbernite) Wetherill discordia regression. Monazite analysis is from sample Joel1; torbernite analysis is from nearby sample DU1. The results of both intercepts have been attributed to both samples. Asdymmetric 95% confidence intervals are +34/-36 Ma and +0.29/-0.33 Ma on the upper and lower intercepts respectively.","AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"mineral","LITHOLOGY_GROUP":"metasomatic rock","LITHOLOGY":"mineralisation","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"mine site specimen","SAMPLE_DESC":"Elburg et al. (2003): Samples from the primary uranium mineralisation (comprising sample JOEL1, which is monazite-(Ce), and sample SMP1, which is an euxenite group mineral) were derived from the Number 2 workings, NW of Mt Gee. The euxenite group mineral (represented by SMP1), with simplified chemical formula (U,Fe,Y)NbO4, is metamict and highly inhomogeneous. The present-day compositions vary from U-dominant (ishikawaite) to Fe-dominant (unnamed end member). Coarse-grained monazite-(Ce), represented by JOEL1, is an abundant primary mineral in the hematite breccia at the Number 2 workings, in places constituting several volume percent of the ore. An early wet-chemical age determination of the primary uranium mineralisation yielded 410 +/- 50 Ma (Kleeman, 1946).","SAMPLING_FEATURE_NAME":"Mount Gee No. 2 workings","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917615","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Mount Painter Block","GEOLOGICAL_REGION_NAME":"Adelaide Region","REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-30.2204751032,"LONG_GDA94":139.3304391484,"ELEV_M_AHD":null,"ACCURACY_M":200,"LOCATION_METHOD":"published report, method unknown","LOCATION_DESC":"Number 2 workings, NW of Mt Gee","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"University of Adelaide","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"24593","AGE_REF":"Elburg, M.A., Bons, P.D., Foden, J., Brugger, J., 2003. A newly defined Late Ordovician magmatic-thermal event in the Mt Painter Province, northern Flinders Ranges, South Australia. Australian Journal of Earth Sciences, 50(4), 611-631.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1046/j.1440-0952.2003.01016.x","AGE_ENTRY_DATE":"2024-07-12","AGE_LAST_UPDATED":"2024-09-27"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14443","geometry":{"type":"Point","coordinates":[149.400382,-34.00177]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14443,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655720","IGSN":"10.60494/vd1k-gt44","SAMPLENO":9655720,"SAMPLE_ID":"8729CKDD61","AGE_MA":429,"AGE_MA_UNCERTAINTY":5,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":2.14,"NUMBER_OF_ANALYSES":17,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"age of crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"These 17 analyses plot as a coherent group, however the chi-square of 2.14 indicates some geological scatter. The selective removal of individual analyses does not significantly change the age and it is not possible to subdivide into sub-groups that are discrete outside of analytical error.","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":9206,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU9206","STRAT_UNIT_NAME":"Kangaloolah Volcanics","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Kangaloolah Volcanics","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid igneous rock","LITHOLOGY":"quartz feldspar porphyry","MODE_OF_OCCURRENCE":"volcanic feature","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Thomas & Pogson 2012 paraphrased: \"The Kangaloolah Volcanics is distinguished as rhyolitic to dacitic, coarse-grained porphyritic quartz-feldspar crystal-phyric volcaniclastic rock, forming a thick continuous mappable unit. It is interpreted as redeposited pyroclastics that have undergone metamorphism and destroyed original volcanic textures. Diffuse stratification is developed in very thick-bedded volcanic sandstone near the base of the formation but is absent near the top. The unabraded, crystal-rich nature of these rocks and the absence of lithic fragments, suggest derivation from explosive eruption of crystals, fine ash and possibly pumice from a crystal-rich magma, with rapid subsequent resedimentation by mass flow into relatively deep water, without sorting or reworking. This sample was collected from the ‘middle’ of the Kangaloolah Volcanics.\" Wilde 2001 paraphrased \"The sample is extracted from a quartz feldspar porphry, where the zircon crystals are clear and colourless to very pale pink in colour. They are mostly sub- to euhedral, tabular grains with an average length to width ratio of 3:1 (maximum 5:1). A few more stubby grains with well devloeped pyramidal faces are present and some of these are slightly darker, with locally-abundant inclusions. The heavy metal fraction is extremely rich in magnetite.\"","SAMPLING_FEATURE_NAME":"8729CKDD61","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917374","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-34.00177,"LONG_GDA94":149.400382,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Pogson, D.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"68592; 75840","AGE_REF":"Thomas, O.D., Pogson, D.J., 2012, Goulburn 1:250 000 geological sheet SI/55-12, 2nd Edition Explanatory notes. Geological Survey of New South Wales, 69p, chart, CD.; Wilde, S.A., 2001. Shrimp U-Pb dating of seven samples from the Crookwell Area NSW. Geological Survey of New South Wales Report GS, 2010/0907, 33.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/product/650/943385; https://search.geoscience.nsw.gov.au/report/R00036966","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14333","geometry":{"type":"Point","coordinates":[149.09225,-34.036171]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14333,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655721","IGSN":"10.60494/g390-zy82","SAMPLENO":9655721,"SAMPLE_ID":"8729CKDD30","AGE_MA":408,"AGE_MA_UNCERTAINTY":13,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.94,"NUMBER_OF_ANALYSES":3,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"crystallisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"3 groups 461+-5 Ma, 430+-6 Ma, 408+-13 Ma. The younger isotopic age group is in accord with the isotopic ages of and intrusive relationships with the Goonooglah Monzodiorite and Blackmans Creek Granite. These results suggest the older group of zircons is probably inherited.","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":1608,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU1608","STRAT_UNIT_NAME":"Bigga Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Bigga Granite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":"pluton","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"S-type protomylonic biotite granite. Thomas & Pogson 2012 paraphrased: \"The Bigga Granite is a blue-grey, coarse-grained, porphyritic, commonly megacrystic, massive to protomylonitic, biotite granite. It contains blue anhedral quartz (20-35%), anhedral K-feldspar (microcline, microperthite and orthoclase) (25-55%), euhedral to subhedral laths of plagioclase (many with highly altered sericitised cores) (15-40%) and large ragged crystals of biotite (10%) together with very minor altered cordierite and secondary muscovite. Accessory minerals include zircon, apatite, rutile and ilmenite. The granite is strongly porphyritic in alkali feldspar (phenocrysts from 20 mm to 90 mm; average 50 mm) and quartz (phenocrysts to 8 mm) with a quartz–feldspar–biotite ‘groundmass’ of about 4 mm.\" Wilde 2001 paraphrased \"The sample is extracted from a granite, where the zircon crystals range from a few clear, equidimensional grains to more abudant clear, pale pink/purple tabular crystals. The latter are chiefly euhedral, with an average length to width ratio of 3:1, but up to as large as 5:1. Fractures appear to be preferentially concentrated in the centres of crystals, although only two discrete cores were identified. Some inclusions were present, and these also appear to be preferentially located close to the centre. A number of elongate grains have fine oscillatory zoning, indicative of a magmatic origin. The heavy mineral fraction was noticeably rich in pyrite and oxidised material.\"","SAMPLING_FEATURE_NAME":"8729CKDD30","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917371","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-34.036171,"LONG_GDA94":149.09225,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Pogson, D.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"68592; 75840","AGE_REF":"Thomas, O.D., Pogson, D.J., 2012, Goulburn 1:250 000 geological sheet SI/55-12, 2nd Edition Explanatory notes. Geological Survey of New South Wales, 69p, chart, CD.; Wilde, S.A., 2001. Shrimp U-Pb dating of seven samples from the Crookwell Area NSW. Geological Survey of New South Wales Report GS, 2010/0907, 33.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/product/650/943385; https://search.geoscience.nsw.gov.au/report/R00036966","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14076","geometry":{"type":"Point","coordinates":[149.12519,-34.073241]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14076,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655722","IGSN":"10.60494/kkae-1r11","SAMPLENO":9655722,"SAMPLE_ID":"8729CKDD37","AGE_MA":413,"AGE_MA_UNCERTAINTY":5,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.17,"NUMBER_OF_ANALYSES":6,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"age of crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Older group of 433+-15 Ma may reflect inheritance.","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":40939,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU40939","STRAT_UNIT_NAME":"Goonoonglah Monzodiorite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Goonoonglah Monzodiorite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate intrusive rock","LITHOLOGY":"monzodiorite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"A-type granite. Thomas & Pogson 2012 paraphrased: \"The Goonoonglah Monzodiorite is primarily distinguished by its mafic mineralogy, A-type geochemistry, low K, Th and U response on ternary radioelement images and generally high magnetic response on TMI images. These characteristics distinguish this unit from the adjacent S-type and A-type granitoids. It exhibits a similar mineralogy across a wide compositional range suggesting all phases are fractionated from a common magma (Simpson 2006d). Probable mantle-derived alkali gabbro intimately associated with the Goonoonglah Monzodiorite may be the primitive mafic precursor from which the monzodiorite differentiated. Influx of mafic alkaline magmas, possibly associated with a small mantle plume, may have provided the heat required to cause high temperature partial melting of felsic infracrustal rocks to produce the A-type granite of the nearby Yewrangara and Whick Whack suites. The Goonoonglah Monzodiorite comprises grey to dark-grey, medium-grained, massive, often porphyritic, pyroxene-biotite-hornblende quartz syenite, quartz monzonite and quartz monzodiorites; together with minor biotite-hornblende-quartz diorite; and black, medium-grained, massive, biotite-hornblende-augite gabbro.\" Wilde 2001 paraphrased \"The sample is extracted from a monzodiorite, where the crystals form a single popluation of pale yellowish to pink elongated zircons. They are tabular and commonly broken, with only rare pyramidal terminations. Because of their broken nature complete crystals are uncommon, but many have a length to width ratio of up to 6:1. Some have have dark cracks in their centres and appear somewhat metamict: care was taken to avoid all such areas during analysis. The heavy metal fraction is extremely rich in hornblend.\"","SAMPLING_FEATURE_NAME":"8729CKDD37","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917372","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-34.073241,"LONG_GDA94":149.12519,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Pogson, D.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"68592; 75840","AGE_REF":"Thomas, O.D., Pogson, D.J., 2012, Goulburn 1:250 000 geological sheet SI/55-12, 2nd Edition Explanatory notes. Geological Survey of New South Wales, 69p, chart, CD.; Wilde, S.A., 2001. Shrimp U-Pb dating of seven samples from the Crookwell Area NSW. Geological Survey of New South Wales Report GS, 2010/0907, 33.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/product/650/943385; https://search.geoscience.nsw.gov.au/report/R00036966","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14334","geometry":{"type":"Point","coordinates":[149.230258,-34.084407]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14334,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655723","IGSN":"10.60494/gmw8-4k94","SAMPLENO":9655723,"SAMPLE_ID":"8729CKDD85","AGE_MA":420,"AGE_MA_UNCERTAINTY":8,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.9,"NUMBER_OF_ANALYSES":9,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"age of crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Wilde describes 4 groups 453+-3 Ma, 420+-8 Ma, 376+-7 Ma, 359+-10 Ma, however the significance of these 'ages' is unclear. Bodorkos 2012 recalculated using same data to find best estimate of the age of crystallisation at 415 +/-8 Ma.","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":20859,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU20859","STRAT_UNIT_NAME":"Yarra Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Yarra Granite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":"pluton","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"A-type granite. Thomas & Pogson 2012 paraphrased: \"The Yarra Granite comprises pinkish to grey, medium- to coarse-grained, foliated to protomylonitic, equigranular to weakly porphyritic, biotite granite. A minor phase of pinkish, fine-grained, protomylonitic, porphyritic, biotite-quartz syenite is present in the central northern portion of the body. Marginal areas tend to be finer grained and equigranular.\" Wilde 2001 paraphrased \"The sample is extracted from a granite, where the zircon crystals are clear and clourless, ranging in shape from rather stubby, equidimensional grains to slightly more elongated crystals with a maximum length to width ratio of 3:1. The crystals are generally subhedral with only the prism faces of tabular crystals well-developed; several of the tabular crystals contain apatite inclusions. The grains range from being clear throughout to some that have cracks and inclusions in their central regions: there is no evidence of any cores.\"","SAMPLING_FEATURE_NAME":"8729CKDD85","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917376","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-34.084407,"LONG_GDA94":149.230258,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Pogson, D.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"68592; 75840","AGE_REF":"Thomas, O.D., Pogson, D.J., 2012, Goulburn 1:250 000 geological sheet SI/55-12, 2nd Edition Explanatory notes. Geological Survey of New South Wales, 69p, chart, CD.; Wilde, S.A., 2001. Shrimp U-Pb dating of seven samples from the Crookwell Area NSW. Geological Survey of New South Wales Report GS, 2010/0907, 33.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/product/650/943385; https://search.geoscience.nsw.gov.au/report/R00036966","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14282","geometry":{"type":"Point","coordinates":[149.203829,-34.120408]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14282,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655724","IGSN":"10.60494/q85d-5783","SAMPLENO":9655724,"SAMPLE_ID":"8729CKDD22","AGE_MA":398,"AGE_MA_UNCERTAINTY":6,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.26,"NUMBER_OF_ANALYSES":5,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"age of crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"2 groups 437+-11 Ma, 398+-6 Ma. The latter age is considered to be the unit's likely age of crystallisation, as it is in accord with that of the Bigga Granite (SHRIMP zircon age 408 +/- 13 Ma), which is intruded by the Blackmans Creek Granite.","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":1863,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU1863","STRAT_UNIT_NAME":"Blackmans Creek Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Blackmans Creek Granite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":"pluton","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"A-type granite. Thomas & Pogson 2012 paraphrased: \"The Blackmans Creek Granite is a cream to grey, medium- to occasionally coarse grained, massive to mildly foliated, generally equigranular, leucocratic, arfvedsonite-biotite granite. \" Wilde 2001 paraphrased \"The sample is extracted from a granite, where zircon crystals are mostly cloudy grains of a pale pink-cream colour. They form uniform population of rather stubby laths, with an average length to width ratio of 2:1. The crystals are generally sub- to euhedral with well developed prism faces, though less than fifty percent of the grains show well developed pyramid terminations. The majority of crystals appear quite metamict in transmitted light and only a few were suitable for analysis. These include relativley clear (though densely cracked) grains and those that were amber and translucent in transmitted light. There is no evidence that the zircons have cores. \"","SAMPLING_FEATURE_NAME":"8729CKDD22","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917370","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-34.120408,"LONG_GDA94":149.203829,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Pogson, D.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"68592; 75840","AGE_REF":"Thomas, O.D., Pogson, D.J., 2012, Goulburn 1:250 000 geological sheet SI/55-12, 2nd Edition Explanatory notes. Geological Survey of New South Wales, 69p, chart, CD.; Wilde, S.A., 2001. Shrimp U-Pb dating of seven samples from the Crookwell Area NSW. Geological Survey of New South Wales Report GS, 2010/0907, 33.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/product/650/943385; https://search.geoscience.nsw.gov.au/report/R00036966","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14175","geometry":{"type":"Point","coordinates":[149.293318,-34.32645]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14175,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655725","IGSN":"10.60494/qsct-wn67","SAMPLENO":9655725,"SAMPLE_ID":"8729CKDD4","AGE_MA":405,"AGE_MA_UNCERTAINTY":12,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.35,"NUMBER_OF_ANALYSES":3,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"approximate age of crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"3 groups 446+-7 Ma, 429+-6 Ma, 405+-12 Ma. The first two age groups are considered to reflect inherited zircons. The youngest age group, although imprecise, probably reflects the approximate age of crystallisation and best fits known boundary relationships; these zircons are all clear grains and morphologically distinct from the older grains.","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":1674,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU1674","STRAT_UNIT_NAME":"Binda Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Binda Granite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":"pluton","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"I-type leucocratic biotite granite. Thomas & Pogson 2012 paraphrased: \"The Binda Granite is dominantly a speckled cream to white, and grey to black or pink, medium- to coarse-grained, equigranular to porphyritic, massive to recrystallised and foliated, hornblende-biotite granite and borderline tonalite/granodiorite. Minor phases include fine- to medium-grained, equigranular and porphyritic, biotite-muscovite leucogranite, together with dykes and sills of aplite, and microgranite and rhyolite. The granitoid contains sedimentary xenoliths and mafic enclaves, which vary from non-aligned to having their long axes parallel to mineral lineations in shear zones.\" Wilde 2001 paraphrased \"The sample is extracted from a granite, where zircons are clear to cloudy white in colour and are well-formed, tabular, euhedral grains with well developed pyramidal terminations. The length to width ratio of all grains averages 2:1. The clear grains are less fractured than the cloudy ones, and some contain elongated fluid inclusions. The cloudy grains have irregular cracks that range from sparse to abundant and some of these zircons are metamict; these were avoided during analysis. \"","SAMPLING_FEATURE_NAME":"8729CKDD4","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917373","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-34.32645,"LONG_GDA94":149.293318,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Pogson, D.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"68592; 75840","AGE_REF":"Thomas, O.D., Pogson, D.J., 2012, Goulburn 1:250 000 geological sheet SI/55-12, 2nd Edition Explanatory notes. Geological Survey of New South Wales, 69p, chart, CD.; Wilde, S.A., 2001. Shrimp U-Pb dating of seven samples from the Crookwell Area NSW. Geological Survey of New South Wales Report GS, 2010/0907, 33.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/product/650/943385; https://search.geoscience.nsw.gov.au/report/R00036966","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14335","geometry":{"type":"Point","coordinates":[149.444169,-34.368248]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14335,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655726","IGSN":"10.60494/2wrg-0n90","SAMPLENO":9655726,"SAMPLE_ID":"8729CKDD68","AGE_MA":420,"AGE_MA_UNCERTAINTY":9,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.04,"NUMBER_OF_ANALYSES":6,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"crystallisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"4 groups 445+-2 Ma, 436+-5 Ma, 420+-9 Ma, 391+-4 Ma, plus 769+-8 Ma, 550+-6 Ma. Dennis prefers approx. 425 Ma. Data migrated from Goulburn SHRIMP.","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":70030,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU70030","STRAT_UNIT_NAME":"Cuddyong Formation","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"unnamed volcanic unit of the Cuddyong Formation","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous volcanic rock","LITHOLOGY":"igneous volcanic rock","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Thomas & Pogson 2012 paraphrased: \"Rhyolitic to dacitic volcanic and volcaniclastic rocks. Both coherent facies (lavas), and matrix-rich volcaniclastic sandstone and siltstone containing resedimented volcanic detritus, are recognised in the Cuddyong Formation.\" Wilde 2001 paraphrased \"The sample is extracted from felsic volcanics, where the zircon were not abundant. They form colourless to pale pink, equidimensional crystals, with some small, elongated inclusions. Many of these crystals are broken but, when complete, they tend to be stubby, tabular grains with well developed prism and pyramidal faces.\"","SAMPLING_FEATURE_NAME":"8729CKDD68","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917375","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-34.368248,"LONG_GDA94":149.444169,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Pogson, D.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"68592; 75840","AGE_REF":"Thomas, O.D., Pogson, D.J., 2012, Goulburn 1:250 000 geological sheet SI/55-12, 2nd Edition Explanatory notes. Geological Survey of New South Wales, 69p, chart, CD.; Wilde, S.A., 2001. Shrimp U-Pb dating of seven samples from the Crookwell Area NSW. Geological Survey of New South Wales Report GS, 2010/0907, 33.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/product/650/943385; https://search.geoscience.nsw.gov.au/report/R00036966","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14374","geometry":{"type":"Point","coordinates":[147.3766859,-34.6646165]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14374,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655728","IGSN":"10.60494/7402-2b04","SAMPLENO":9655728,"SAMPLE_ID":"VB5","AGE_MA":432.2,"AGE_MA_UNCERTAINTY":4.3,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":38,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"Wantabadgery Granite crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Pooled age from 3 analytical sessions for the Wantabadgery pluton (samples VB4, VB5, VB38).","AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":19423,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU19423","STRAT_UNIT_NAME":"Wantabadgery Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Wantabadgery","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":"pluton","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"S-type granite from the Wagga Batholith. Ickert and Williams 2011 paraphrased: \"The Wagga Batholith is a series of north-west trending granite bodies in the Wagga-Omeo metamorphic belt, separated from the eastern province by the Gilmore Fault, which juxtaposes Ordovician Macquarie Arc volcanic rocks against Adaminaby Superterrane turbidites of the Wagga Group (Warren et al. 1995). Samples reported here are from the large, relatively homogenous Wantabagdery pluton (Warren et al. 1995), the highly fractionated Mt Flakney pluton (Chappell & White 1992; King et al. 2001) and the fractionated Granya pluton (Oppy et al. 1995; Chappell & Hine 2006).\"","SAMPLING_FEATURE_NAME":"VB5","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917585","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-34.6646165,"LONG_GDA94":147.3766859,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Ickert, R.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"67060","AGE_REF":"Ickert, R.B., Williams, I.S., 2011. U-Pb zircon geochronology of Silurian-Devonian granites in southeastern Australia: implications for the timing of the Benambran Orogeny and the I-S dichotomy. Australian Journal of Earth Sciences, 58(5), 501-516.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099.2011.562922","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14392","geometry":{"type":"Point","coordinates":[149.917826,-34.674686]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14392,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655729","IGSN":"10.60494/2v87-cx11","SAMPLENO":9655729,"SAMPLE_ID":"OG37","AGE_MA":326.6,"AGE_MA_UNCERTAINTY":2.7,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":1.38,"NUMBER_OF_ANALYSES":15,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Zircon rims","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Chapmans Creek Granite","UNIT_NAME_SOURCE":"Chapmans Creek monzogranite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"monzogranite","MODE_OF_OCCURRENCE":"pluton","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Jeon and Williams 2018 paraphrased: \"Chapmans Creek (OG37), one of the southern LCG, is a medium grained biotite-hornblende monzogranite with no K-feldspar phenocrysts. It intruded Ordovician turbidite and late Silurian to Mid-Late Devonian sedimentary and volcanic rocks. Zircon grains are described as fine to medium sized (30-100 um diameter), light honey coloured, euhedral grains with aspect ratios of 2-4 and abundant mineral inclusions. CL imaging showed few grains (ca. 5%) that contained apparent cores, many of which were rounded. Those cores were concentrically or rarely sector zoned, or unzoned, and mantled by an overgrowth, commonly with oscillatory zoning, and sometimes thin rims less than 10 um thick.\"","SAMPLING_FEATURE_NAME":"OG37","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917543","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-34.674686,"LONG_GDA94":149.917826,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jeon, H.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75826","AGE_REF":"Jeon, H., Williams, I.S., 2018. Trace inheritance—Clarifying the zircon O-Hf isotopic fingerprint of I-type granite sources: Implications for the restite model. Chemical Geology, 476, 456-468.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.chemgeo.2017.11.041","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14060","geometry":{"type":"Point","coordinates":[150.009603,-34.808822]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14060,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655731","IGSN":"10.60494/eea3-se64","SAMPLENO":9655731,"SAMPLE_ID":"12062","AGE_MA":300.6,"AGE_MA_UNCERTAINTY":7.8,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.1,"NUMBER_OF_ANALYSES":10,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"mineralisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Cassiterite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7700x","LABORATORY_NAME":"University of Newcastle, Australia","AGE_INTERPRETED_FROM_SOURCE":"age determination of mineralisation event","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"Cave Reserve, Bungonia","MATERIAL_TYPE":"sediment","LITHOLOGY_GROUP":"sediment","LITHOLOGY":"alluvial sediment","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"unconsolidated surficial specimen","SAMPLE_DESC":"Barry 2015 paraphrased \"Alluvial cassiterite; medium to coarse grained (~1-9 mm); sub-angular to sub-rounded; subhedral, some with perfect crystal faces; crystalline quartz often attached. The detrital cassiterites from Bungonia were probably sourced from lode deposits at Tolwong.\"","SAMPLING_FEATURE_NAME":"12062","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917331","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-34.808822,"LONG_GDA94":150.009603,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"published report, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"CalEnergy Resources (Australia) Ltd","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75815","AGE_REF":"Barry, C. M., 2015. U-Pb LA-ICP-MS geochronology of cassiterites from New South Wales and the Northern Territory, Australia. Geological Survey of New South Wales Report GS, 2016/0206, 34.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/report/R00052516","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14177","geometry":{"type":"Point","coordinates":[149.787735,-34.822753]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14177,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655732","IGSN":"10.60494/r9qz-xr40","SAMPLENO":9655732,"SAMPLE_ID":"8828AJJ075.1","AGE_MA":396,"AGE_MA_UNCERTAINTY":8,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.96,"NUMBER_OF_ANALYSES":22,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"crystallisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Single group of 22 zircons. GSNSW comment: Age is considered too young.","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":69883,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU69883","STRAT_UNIT_NAME":"Gundary Volcanics","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Gundary Fmt","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid volcanic rock","LITHOLOGY":"dacite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Thomas & Pogson 2012 paraphrased: \"The Gundary Volcanics comprises a succession of volcanic and high-level intrusive rocks of diverse composition and facies. Wilde 2002 paraphrased \"The sample is extracted from a dacite, where the zircon crystals are dominatly colourless to pale brown in colour and are mostly well-formed, tabular, subhedral grains with some development of pyramidal terminations. The average length to width ratio is 2:1. The crystals are commonly devoid of fracture, and most contain stubby inclusions of both apatite and titanite. Some grains show weak oscillatory zoning. There are also a few darker brown grains that appear more metamict: these were not analysed.\"","SAMPLING_FEATURE_NAME":"8828AJJ075.1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917377","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-34.822753,"LONG_GDA94":149.787735,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Pogson, D.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"68592; 75841","AGE_REF":"Thomas, O.D., Pogson, D.J., 2012, Goulburn 1:250 000 geological sheet SI/55-12, 2nd Edition Explanatory notes. Geological Survey of New South Wales, 69p, chart, CD.; Wilde, S.A., 2002. SHRIMP U-Pb dating of four samples from the Goulburn 1:250 000 map sheet NSW. 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Precambrian Research, 184(1-4), 43-62.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.precamres.2010.10.002","AGE_ENTRY_DATE":"2025-10-29","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15255","geometry":{"type":"Point","coordinates":[132.3871923,-30.9424923]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15255,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9658295","IGSN":"10.60494/0dr9-xt41","SAMPLENO":9658295,"SAMPLE_ID":"1472782","AGE_MA":1717,"AGE_MA_UNCERTAINTY":11,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":1.08,"NUMBER_OF_ANALYSES":17,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"maximum depositional age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"unnamed metasedimentary rocks, Fowler Domain, Gawler Craton","UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metasedimentary siliciclastic rock","LITHOLOGY":"paragneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"borehole specimen","SAMPLE_DESC":"qtz-kspar-plg-bi-gt-sill gneiss. Howard et al 2011 (PrecambrianRes): metapelitic gneiss with mineral assemblage of quartz, k-feldspar, plagioclase, biotite, garnet, and sillimanite.","SAMPLING_FEATURE_NAME":"BAC 23","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH908477","BOREHOLE_TOP_DEPTH_M":54,"BOREHOLE_BASE_DEPTH_M":57,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-30.9424923,"LONG_GDA94":132.3871923,"ELEV_M_AHD":163,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"University of Adelaide","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"66479","AGE_REF":"Howard, K.E., Hand, M., Barovich, K.M., Payne, J.L., Belousova, E.A., 2011. U-Pb, Lu-Hf and Sm-Nd isotopic constraints on provenance and depositional timing of metasedimentary rocks in the western Gawler Craton: Implications for Proterozoic reconstruction models. Precambrian Research, 184(1-4), 43-62.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.precamres.2010.10.002","AGE_ENTRY_DATE":"2025-10-29","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15496","geometry":{"type":"Point","coordinates":[132.3871923,-30.9424923]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15496,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9658295","IGSN":"10.60494/0dr9-xt41","SAMPLENO":9658295,"SAMPLE_ID":"1472782","AGE_MA":1606,"AGE_MA_UNCERTAINTY":17,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":123,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"metamorphism","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Monazite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"EPMA: wavelength dispersive spectrometer (WDS)","ANALYTICAL_COLLECTION_SYSTEM":"EPMA: Cameca SX51 electron microprobe","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"metamorphic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"unnamed metasedimentary rocks, Fowler Domain, Gawler Craton","UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metasedimentary siliciclastic rock","LITHOLOGY":"paragneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"borehole specimen","SAMPLE_DESC":"qtz-kspar-plg-bi-gt-sill gneiss. Howard et al 2011 (PrecambrianRes): metapelitic gneiss with mineral assemblage of quartz, k-feldspar, plagioclase, biotite, garnet, and sillimanite.","SAMPLING_FEATURE_NAME":"BAC 23","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH908477","BOREHOLE_TOP_DEPTH_M":54,"BOREHOLE_BASE_DEPTH_M":57,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-30.9424923,"LONG_GDA94":132.3871923,"ELEV_M_AHD":163,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"University of Adelaide","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"64739","AGE_REF":"Thomas, J.L., Direen, N.G., Hand, M., 2008. Blind orogen: integrated appraisal of multiple episodes of Mesoproterozoic deformation and reworking in the Fowler Domain, western Gawler Craton, Australia. Precambrian Research, 166(1-4), 263-282.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.precamres.2007.05.006","AGE_ENTRY_DATE":"2025-11-18","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14145","geometry":{"type":"Point","coordinates":[149.130717,-36.230175]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14145,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655748","IGSN":"10.60494/dysz-5p74","SAMPLENO":9655748,"SAMPLE_ID":"76-3A","AGE_MA":432.8,"AGE_MA_UNCERTAINTY":4.7,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"metamorphism","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Monazite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"metamorphic monazite age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"This age is indistinguishable from the Pb/U age of the zircon in this same granodiorite sample (435.2 +/- 6.3 Ma) and the surrounding high-grade metamorphic rocks. The convergence of apparent monazite ages in this study reflects resetting of pre-existing monazite U-Th-Pb isotopic systems and the growth of new monazite during partial melting and magmatism.","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":4571,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU4571","STRAT_UNIT_NAME":"Cooma Granodiorite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Cooma Granodiorite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granodiorite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Williams 2001 paraphrased: \"Sample 76-3A was collected from a large fresh boulder excavated from a deep road cut on the flank of Nanny Goat Hill in Cooma township. The granodiorite is medium grained & massive & contains a high abundance of enclaves on all scales from small clots of minerals to rock fragments up to 0.5 m diameter. The enclaves all of sedimentary derivation can be matched closely with many of the highest grade rocks in the regional aureole including metapsammite biotite schist & b&ed gneiss. The granodiorite is exceedingly quartz rich (~50%) & unequilibrated mineralogically. Aluminous phases include biotite muscovite ragged sieved & alusite up to 2 mm cordierite phenocrysts up to 15 mm (most now pinitised) & mats of fibrolitic sillimanite. K-feldspar crystals up to 4 mm commonly have myrmekite developed at their margins & plagioclase more abundant than in the migmatites commonly occurs as zoned tabular grains with calcic cores. Biotite is crowded with pleochroic haloes around inclusions of zircon & monazite. Zircon is very abundant in the Cooma Granodiorite mostly sharply euhedral & with a very similar grainsize range to zircon in the low-grade semipelites (30-250 um). It is however a complex population. Although euhedral grains dominate a few crystals are strongly rounded & the frosted surface characteristic of detrital zircon is clearly visible under an optical microscope. Aspect ratios range from 1 to ~5. Terminations with strongly developed faces predominate particularly on the larger & more equant crystals but very simple prismatic crystals with only prisms & pyramids are common among the finer grains. Cathodoluminescence images reveal the reason for this variety. Virtually all zircons contain a core & it was principally the size & shape of that core that determined the size & shape of the final crystal. At one end of the spectrum are crystals in which the core is very large (>100 um) & strongly rounded.","SAMPLING_FEATURE_NAME":"76-3A","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917363","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-36.230175,"LONG_GDA94":149.130717,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Williams, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"23546","AGE_REF":"Williams, I.S., 2001. Response of detrital zircon and monazite, and their U-Pb isotopic systems, to regional metamorphism and host-rock partial melting, Cooma Complex, southeastern Australia. Australian Journal of Earth Sciences, 48(4), 557-580.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1046/j.1440-0952.2001.00883.x","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14323","geometry":{"type":"Point","coordinates":[148.665472,-36.23785]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14323,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655749","IGSN":"10.60494/pwhz-4n25","SAMPLENO":9655749,"SAMPLE_ID":"KK4","AGE_MA":415.5,"AGE_MA_UNCERTAINTY":7.2,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.48,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: Cameca IMS 1270 MC-ion microprobe","LABORATORY_NAME":"Swedish Museum of Natural History","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":25452,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU25452","STRAT_UNIT_NAME":"Round Flat Tonalite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Round Flat Tonalite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"tonalite","MODE_OF_OCCURRENCE":"pluton","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Kemp et al 2005 paraphrased: \"The sample is even-grained and dominated by complexly twinned plagioclase and hornblende prisms (to 4 mm). Plagioclase has corroded calcic cores, which typifies all rocks of the Jindabyne Suite. Biotite tends to form single plates (2-4 mm) that enclose small plagioclase laths and may be complexly intergrown with hornblende.\"","SAMPLING_FEATURE_NAME":"KK4","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917468","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-36.23785,"LONG_GDA94":148.665472,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Kemp, A.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73063","AGE_REF":"Kemp, A.I.S., Hawkesworth, C.J., Paterson, B.A., Foster, G.L., Kinny, P.D., Whitehouse, M.J., Maas, R., EIMF, 2008. Exploring the plutonic-volcanic link: a zircon U-Pb, Lu-Hf and O isotope study of paired volcanic and granitic units from southeastern Australia. Transactions of the Royal Society of Edinburgh: Earth Sciences, 97(4), 337-355.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1017/S0263593300001498","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14304","geometry":{"type":"Point","coordinates":[149.081336,-36.24035]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14304,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655750","IGSN":"10.60494/xr90-6z45","SAMPLENO":9655750,"SAMPLE_ID":"95-34","AGE_MA":432.5,"AGE_MA_UNCERTAINTY":7.5,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"metamorphism","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Monazite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"metamorphism","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"The convergence of apparent monazite ages in this study reflects resetting of pre-existing monazite U-Th-Pb isotopic systems and the growth of new monazite during partial melting and magmatism.","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":4572,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU4572","STRAT_UNIT_NAME":"Cooma Metamorphic Complex","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Cooma Complex","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"high grade metamorphic rock","LITHOLOGY":"migmatite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Williams 2001 paraphrased: \"Melanosome migmatite. The migmatite consists of disrupted, but in places broadly continuous, bands of metapsammite in a matrix of coarser grained metapelite containing widespread evidence (veins and localised coarse-grained quartzo-feldspathic segregations) of smallscale partial melting. The melanosome sample (medium-grained, biotite rich metapsammite) consists of quartz, biotite, cordierite, and minor andalusite, muscovite, K-feldspar, plagioclase and fibrolitic sillimanite. Fresh cordierite forms poikilitic crystals up to several millimetres in diameter that enclose fine biotite, multiple small rounded inclusions of quartz and feldspar, and a dusting of tiny radioactive grains (zircon and ?monazite), each surrounded by a pronounced pleochroic halo. New zircon growth is ubiquitous in the migmatite samples. Despite many crystals having a rounded shape reminiscent of detrital grains, very few of the many fine (40-100 um) zircons recovered from the melanosome show remnant surface abrasion. Most grains are multifaceted, many are sharply euhedral. Secondary electron images show the grains to be entirely surrounded by new zircon, either as a thin film that barely covers the roughness of the abraded surface, or as a thicker layer forming multiple small crystal faces. Cathodoluminescence images reveal that the thickness of the new layer ranges from a few micrometres where the pyramids of the crystals have begun to develop to a micrometre or so on the prism faces. In all cases, no matter how irregular the shape of the kernel of detrital zircon, the pyramids of the crystal have developed first and grown fastest. The new layer is uniformly weakly luminescent and unzoned.\"","SAMPLING_FEATURE_NAME":"95-34/35","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917391","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-36.24035,"LONG_GDA94":149.081336,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Williams, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"23546","AGE_REF":"Williams, I.S., 2001. Response of detrital zircon and monazite, and their U-Pb isotopic systems, to regional metamorphism and host-rock partial melting, Cooma Complex, southeastern Australia. Australian Journal of Earth Sciences, 48(4), 557-580.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1046/j.1440-0952.2001.00883.x","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14133","geometry":{"type":"Point","coordinates":[149.081336,-36.24035]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14133,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655751","IGSN":"10.60494/94b9-0380","SAMPLENO":9655751,"SAMPLE_ID":"95-35","AGE_MA":431.7,"AGE_MA_UNCERTAINTY":10.9,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":5,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"crystallisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"This age is indistinguishable from the Pb/U age of monazite from the same rock (435.0 +/- 8.0 Ma) that suggests that monazite and zircon crystallised at the same time.","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":4572,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU4572","STRAT_UNIT_NAME":"Cooma Metamorphic Complex","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Cooma Complex","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"high grade metamorphic rock","LITHOLOGY":"migmatite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Williams 2001 paraphrased: \"Leucosome migmatite. The migmatite consists of disrupted, but in places broadly continuous, bands of metapsammite in a matrix of coarser grained metapelite containing widespread evidence (veins and localised coarse-grained quartzo-feldspathic segregations) of smallscale partial melting. The leucosome sample was taken from a vein ~0.1 m thick (as distinct from a localised partial melt patch) and consisting mainly of coarse (>5 mm) quartz, cordierite and feldspar. Cordierite, in contrast to that in the melanosome, is not poikilitic and, with the exception of scattered sillimanite needles, is relatively inclusion free. Ragged andalusite grains are up to 2 mm diameter. Rare biotite flakes up to 1 mm are associated with masses of fibrolitic sillimanite and contain abundant pleochroic haloes around radioactive inclusions. New zircon growth is ubiquitous in the migmatite samples. Much less zircon was recovered from the leucosome. As in the melanosome the crystals are fine-grained (40-100 um), but they are consistently more prismatic, with aspect ratios ranging from 2 to 5, commonly with large {211} crystal faces. Cathodoluminescence imaging shows that, in contrast to the melanosome zircon, the crystals are dominated by new growth. Pyramidal overgrowths commonly 50 um, and in some cases up to 100 um, thick surround zircon cores that are smaller on average than those in the melanosome. It is not unusual for the overgrowth to exceed 70% of the volume of the grain. Even so, the overgrowths on the prism faces can be very thin, and in some cases barely cover the irregular surface of the core. The overgrowths are consistently weakly luminescent, and any zoning present is indistinct, broad and simply euhedral. Like the accompanying monazite, the new zircon is rich in acicular inclusions that are probably sillimanite.\"","SAMPLING_FEATURE_NAME":"95-34/35","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917391","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-36.24035,"LONG_GDA94":149.081336,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Williams, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"23546","AGE_REF":"Williams, I.S., 2001. Response of detrital zircon and monazite, and their U-Pb isotopic systems, to regional metamorphism and host-rock partial melting, Cooma Complex, southeastern Australia. Australian Journal of Earth Sciences, 48(4), 557-580.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1046/j.1440-0952.2001.00883.x","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15457","geometry":{"type":"Point","coordinates":[132.4202933,-30.9481533]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15457,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9658296","IGSN":"10.60494/tqwv-rj52","SAMPLENO":9658296,"SAMPLE_ID":"1472784","AGE_MA":1592,"AGE_MA_UNCERTAINTY":18,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":115,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"metamorphism","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Monazite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"EPMA: wavelength dispersive spectrometer (WDS)","ANALYTICAL_COLLECTION_SYSTEM":"EPMA: Cameca SX51 electron microprobe","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"metamorphic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"unnamed metasedimentary rocks, Fowler Domain, Gawler Craton","UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metasedimentary siliciclastic rock","LITHOLOGY":"paragneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"borehole specimen","SAMPLE_DESC":"qtz-bi-sill-gt gneiss","SAMPLING_FEATURE_NAME":"BAC 33","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH908485","BOREHOLE_TOP_DEPTH_M":45,"BOREHOLE_BASE_DEPTH_M":51,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-30.9481533,"LONG_GDA94":132.4202933,"ELEV_M_AHD":155,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"University of Adelaide","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"64739","AGE_REF":"Thomas, J.L., Direen, N.G., Hand, M., 2008. Blind orogen: integrated appraisal of multiple episodes of Mesoproterozoic deformation and reworking in the Fowler Domain, western Gawler Craton, Australia. Precambrian Research, 166(1-4), 263-282.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.precamres.2007.05.006","AGE_ENTRY_DATE":"2025-11-18","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15194","geometry":{"type":"Point","coordinates":[134.4653853,-28.1025458]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15194,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9658302","IGSN":null,"SAMPLENO":9658302,"SAMPLE_ID":"650698","AGE_MA":1728,"AGE_MA_UNCERTAINTY":10,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.19,"NUMBER_OF_ANALYSES":12,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"metamorphism","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Monazite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"monazite growth during high-grade metamorphism","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Age is interpreted as the high-grade metamorphic event of the craton-wide Kimban Orogeny in the interval 1730-1690 Ma.","AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":28826,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU28826","STRAT_UNIT_NAME":"Mulgathing Complex","INFORMAL_UNIT_NAME":"unnamed (para?) gneiss, Nawa Domian Gawler Craton","UNIT_NAME_SOURCE":"Mt Furner 1: central-northern Nawa Domain","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metasedimentary rock","LITHOLOGY":"pelite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"(Gneiss (interpreted sedimentary protolith)) Payne et al. 2008 (AJES): This sample is a quartz-plagioclase-biotite-garnet gneiss. The sampled interval consists of a garnet-bearing metapelite with a steeply dipping foliation. Garnet porphyroblasts are up to 3-4 mm in diameter and contain inclusions of sillimanite, biotite and quartz. The garnets are enclosed by a gneissic fabric defined by biotite which is interspersed in a matrix of plagioclase and quartz. The primary gneissic fabric has undergone within-plane reworking resulting in recrystallisation of biotite, quartz and plagioclase.Late-stage muscovite (up to 1.5 mm) post-dates both structural fabrics.","SAMPLING_FEATURE_NAME":"Mount Furner 1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH13868","BOREHOLE_TOP_DEPTH_M":551.99,"BOREHOLE_BASE_DEPTH_M":552.6,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-28.1025458,"LONG_GDA94":134.4653853,"ELEV_M_AHD":192,"ACCURACY_M":100,"LOCATION_METHOD":"company supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"University of Adelaide","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"64576","AGE_REF":"Payne, J.L., Hand, M., Barovich, K.M., Wade, B.P., 2008. Temporal constraints on the timing of high-grade metamorphism in the northern Gawler Craton: implications for assembly of the Australian Proterozoic. Australian Journal of Earth Sciences, 55(5), 623-640.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120090801982595","AGE_ENTRY_DATE":"2025-10-29","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15195","geometry":{"type":"Point","coordinates":[133.7863577,-28.0366636]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15195,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9658304","IGSN":null,"SAMPLENO":9658304,"SAMPLE_ID":"650703","AGE_MA":1719,"AGE_MA_UNCERTAINTY":8,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.3,"NUMBER_OF_ANALYSES":25,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"metamorphism","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Monazite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"monazite growth during high-grade metamorphism","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Age is interpreted as the high-grade metamorphic event of the craton-wide Kimban Orogeny in the interval 1730-1690 Ma.","AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"unnamed (para?) gneiss, Nawa Domian Gawler Craton","UNIT_NAME_SOURCE":"Manya 4: central-northern Nawa Domain","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metasedimentary siliciclastic rock","LITHOLOGY":"pelite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"(Gneiss (interpreted sedimentary protolith)) Payne et al 2008 (AJES): This sample is a quartz-feldspar-biotite (garnet) gneiss. The sampled interval is a partly weathered garnet-biotite-bearing quartzo-feldspathic gneiss. Garnet ranges between 0.5 and 2 mm, and contains inclusions of biotite and quartz. The gneissic fabric is defined by coarse biotite interspersed with quartz and sericitised plagioclase.","SAMPLING_FEATURE_NAME":"Manya 4","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH13185","BOREHOLE_TOP_DEPTH_M":801.9,"BOREHOLE_BASE_DEPTH_M":802.1,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-28.0366636,"LONG_GDA94":133.7863577,"ELEV_M_AHD":236,"ACCURACY_M":100,"LOCATION_METHOD":"company supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"University of Adelaide","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"64576","AGE_REF":"Payne, J.L., Hand, M., Barovich, K.M., Wade, B.P., 2008. Temporal constraints on the timing of high-grade metamorphism in the northern Gawler Craton: implications for assembly of the Australian Proterozoic. 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This age is interpreted as a younger age event. Age is interpreted to be high-T reworking during the 1570-1555 Ma Kararan Orogeny.","AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":78896,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU78896","STRAT_UNIT_NAME":"Hutchison Supergroup","INFORMAL_UNIT_NAME":"unnamed (para?) gneiss, Mabel Creek Ridge, Nawa Domian, Gawler Craton","UNIT_NAME_SOURCE":"AM/PB 3: Mabel Creek Ridge area of Nawa Domain","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metasedimentary rock","LITHOLOGY":"pelite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"(Gneiss (interpreted sedimentary protolith)) Payne et al 2008  (AJES): This sample is a quartz-plagioclase-garnet-biotite gneiss. The sampled interval targeted comparatively magnetite-poor rocks and contained evidence for two metamorphic assemblages. The primary mineral assemblage is characterised by interlayered, steeply dipping coarse-grained garnet-biotite-plagioclase-quartz and garnet-hornblende-biotite-plagioclase-quartz assemblages. In both bulk compositions, garnet has been partially replaced by orthopyroxene and plagioclase. The primary assemblage and garnet replacement textures have been overprinted by narrow shear zones that formed at a high angle to the primary fabric. The shear fabric assemblage is dominated by biotite which encloses recrystallised plagioclase and quartz. The AM/PB 3 drillhole intersects basement at a depth of 187.25 m and has a total depth of 287 m.","SAMPLING_FEATURE_NAME":"PB 3","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH444034","BOREHOLE_TOP_DEPTH_M":272.4,"BOREHOLE_BASE_DEPTH_M":272.9,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-28.8603846562,"LONG_GDA94":133.883753824,"ELEV_M_AHD":204,"ACCURACY_M":20,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"University of Adelaide","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"64576","AGE_REF":"Payne, J.L., Hand, M., Barovich, K.M., Wade, B.P., 2008. Temporal constraints on the timing of high-grade metamorphism in the northern Gawler Craton: implications for assembly of the Australian Proterozoic. 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This age is interpreted as the older age event of the craton-wide Kimban Orogeny in the interval 1730-1690 Ma.","AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":78896,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU78896","STRAT_UNIT_NAME":"Hutchison Supergroup","INFORMAL_UNIT_NAME":"unnamed (para?) gneiss, Mabel Creek Ridge, Nawa Domian, Gawler Craton","UNIT_NAME_SOURCE":"AM/PB 3: Mabel Creek Ridge area of Nawa Domain","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metasedimentary rock","LITHOLOGY":"pelite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"(Gneiss (interpreted sedimentary protolith)) Payne et al 2008  (AJES): This sample is a quartz-plagioclase-garnet-biotite gneiss. The sampled interval targeted comparatively magnetite-poor rocks and contained evidence for two metamorphic assemblages. The primary mineral assemblage is characterised by interlayered, steeply dipping coarse-grained garnet-biotite-plagioclase-quartz and garnet-hornblende-biotite-plagioclase-quartz assemblages. In both bulk compositions, garnet has been partially replaced by orthopyroxene and plagioclase. The primary assemblage and garnet replacement textures have been overprinted by narrow shear zones that formed at a high angle to the primary fabric. The shear fabric assemblage is dominated by biotite which encloses recrystallised plagioclase and quartz. The AM/PB 3 drillhole intersects basement at a depth of 187.25 m and has a total depth of 287 m.","SAMPLING_FEATURE_NAME":"PB 3","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH444034","BOREHOLE_TOP_DEPTH_M":272.4,"BOREHOLE_BASE_DEPTH_M":272.9,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-28.8603846562,"LONG_GDA94":133.883753824,"ELEV_M_AHD":204,"ACCURACY_M":20,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"University of Adelaide","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"64576","AGE_REF":"Payne, J.L., Hand, M., Barovich, K.M., Wade, B.P., 2008. Temporal constraints on the timing of high-grade metamorphism in the northern Gawler Craton: implications for assembly of the Australian Proterozoic. 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Early Mesoproterozoic bimodal plutonism in the southeastern Gawler Craton, South Australia. Australian Journal of Earth Sciences, 54(5), 661-674.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120090701305210","AGE_ENTRY_DATE":"2025-11-18","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14927","geometry":{"type":"Point","coordinates":[139.8737399,-36.670952]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14927,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9672546","IGSN":"10.60494/d8z5-m431","SAMPLENO":9672546,"SAMPLE_ID":"2800727","AGE_MA":497.11,"AGE_MA_UNCERTAINTY":0.23,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.8,"NUMBER_OF_ANALYSES":6,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"isotope dilution: chemical abrasion and isotope dilution","ANALYTICAL_COLLECTION_SYSTEM":"TIMS: IsotopX IsoProbe-T","LABORATORY_NAME":"Boise State University","AGE_INTERPRETED_FROM_SOURCE":"Magmatic crystallisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Quoted uncertainty includes that of the EARTHTIME U/Pb tracer.","AGE_SOURCE":null,"PROJECT":null,"STRATNO":34724,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU34724","STRAT_UNIT_NAME":"Taratap Granodiorite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Taratap Granodiorite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granodiorite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Porphyritic granodiorite, blue-grey, tabular to round plagioclase megacrysts (2-6 cm) in a groundmass of quartz-plagioclase-microcline-biotite-hornblende. Contains co-magmatic and metasedimentary enclaves. Biotite and microcline flow lineation. S-type, post-tectonic granite. Rb/Sr date of 475 +/- 65 Ma (with initial 87Sr/86Sr = 0.7160).","SAMPLING_FEATURE_NAME":"2800727","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS922654","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":"Adelaide Region","REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-36.670952,"LONG_GDA94":139.8737399,"ELEV_M_AHD":8,"ACCURACY_M":10,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":"Other_ID = SA Geodata Site Number.","SAMPLE_ACQUISITION_DATE":"2019-09-23","SAMPLE_ORIGINATOR":"Geological Survey of South Australia","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Curtis, S.O., PhD thesis in progress 2024, University of South Australia.","AGE_PUBLICATION_LINKS":null,"AGE_ENTRY_DATE":"2024-07-23","AGE_LAST_UPDATED":"2024-12-09"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14953","geometry":{"type":"Point","coordinates":[140.3191824,-36.1971189]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14953,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9672547","IGSN":"10.60494/vvvg-nf71","SAMPLENO":9672547,"SAMPLE_ID":"2800739","AGE_MA":478.26,"AGE_MA_UNCERTAINTY":0.25,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.7,"NUMBER_OF_ANALYSES":5,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"isotope dilution: chemical abrasion and isotope dilution","ANALYTICAL_COLLECTION_SYSTEM":"TIMS: IsotopX IsoProbe-T","LABORATORY_NAME":"Boise State University","AGE_INTERPRETED_FROM_SOURCE":"Magmatic crystallisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Quoted uncertainty includes that of the EARTHTIME U/Pb tracer.","AGE_SOURCE":null,"PROJECT":null,"STRATNO":25288,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU25288","STRAT_UNIT_NAME":"Mount Monster Porphyry","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Mount Monster Porphyry","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid volcanic rock","LITHOLOGY":"rhyolite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Rhyolite, porphyritic, quartz and tabular feldspar phenocrysts; orange-brown or grey-green groundmass with feldspar phenocrysts; Flow banded, may be welded ash flow in part. A-type, post-tectonic. Age 464 +/- 7 Ma (U-Pb).","SAMPLING_FEATURE_NAME":"2800739","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS922655","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":"Adelaide Region","REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-36.1971189,"LONG_GDA94":140.3191824,"ELEV_M_AHD":null,"ACCURACY_M":10,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":"Other_ID = SA Geodata Site Number.","SAMPLE_ACQUISITION_DATE":"2019-09-26","SAMPLE_ORIGINATOR":"Geological Survey of South Australia","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Curtis, S.O., PhD thesis in progress 2024, University of South Australia.","AGE_PUBLICATION_LINKS":null,"AGE_ENTRY_DATE":"2024-07-23","AGE_LAST_UPDATED":"2024-12-09"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14928","geometry":{"type":"Point","coordinates":[140.2073571,-32.7226665]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14928,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9672548","IGSN":"10.60494/xn9w-8411","SAMPLENO":9672548,"SAMPLE_ID":"2916818","AGE_MA":473.16,"AGE_MA_UNCERTAINTY":0.24,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.3,"NUMBER_OF_ANALYSES":5,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"isotope dilution: chemical abrasion and isotope dilution","ANALYTICAL_COLLECTION_SYSTEM":"TIMS: IsotopX IsoProbe-T","LABORATORY_NAME":"Boise State University","AGE_INTERPRETED_FROM_SOURCE":"Magmatic crystallisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Quoted uncertainty includes that of the EARTHTIME U/Pb tracer.","AGE_SOURCE":null,"PROJECT":null,"STRATNO":26344,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU26344","STRAT_UNIT_NAME":"Anabama Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Anabama Granite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granodiorite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Medium- to coarse-grained, seriate-textured granite to granodiorite. Larger pale pink K-feldspar megacrysts surrounded by medium-grained interstitial plagioclase-quartz-biotite. S-type to possibly I-type. Rb-Sr age 458 +/- 62 Ma, with initial 87Sr/86Sr = 0.707.","SAMPLING_FEATURE_NAME":"DDH AN 7","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH868296","BOREHOLE_TOP_DEPTH_M":251.4,"BOREHOLE_BASE_DEPTH_M":254.4,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-32.7226665,"LONG_GDA94":140.2073571,"ELEV_M_AHD":280,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2019-12-09","SAMPLE_ORIGINATOR":"Geological Survey of South Australia","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Curtis, S.O., PhD thesis in progress 2024, University of South Australia.","AGE_PUBLICATION_LINKS":null,"AGE_ENTRY_DATE":"2024-07-23","AGE_LAST_UPDATED":"2024-12-09"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14778","geometry":{"type":"Point","coordinates":[139.33734353,-30.23617163]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14778,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655835","IGSN":"10.60494/gw9n-xg53","SAMPLENO":9655835,"SAMPLE_ID":"DU1","AGE_MA":2.22,"AGE_MA_UNCERTAINTY":0.31,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":2,"CALCULATION_TYPE":"lower concordia intercept","GEOLOGICAL_EVENT":"hydrothermal alteration","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/235U and 206Pb/238U","MINERAL":"Torbernite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"isotope dilution: ion exchange chromatography","ANALYTICAL_COLLECTION_SYSTEM":"TIMS: Finnigan MAT 262","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"Remobilisation of U during recent hydrothermal alteration.","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Two-point (monazite-torbernite) Wetherill discordia regression. Torbernite analysis is from sample DU1; monazite analysis is from nearby sample Joel1. The results of both intercepts have been attributed to both samples. Asdymmetric 95% confidence intervals are +34/-36 Ma and +0.29/-0.33 Ma on the upper and lower intercepts respectively.","AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"mineral","LITHOLOGY_GROUP":"metasomatic rock","LITHOLOGY":"mineralisation","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"mine site specimen","SAMPLE_DESC":"Elburg et al. (2003): A sample (labelled DU1) of secondary uranium mineralisation (torbernite) was derived from the Number 6 workings near Mount Gee. Torbernite occurs along schistosity joints and as free crystals in vugs, and is the main uranium ore at the Number 6 workings.","SAMPLING_FEATURE_NAME":"Mount Gee No. 6 workings","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917616","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Mount Painter Block","GEOLOGICAL_REGION_NAME":"Adelaide Region","REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-30.2361716323,"LONG_GDA94":139.3373435282,"ELEV_M_AHD":null,"ACCURACY_M":200,"LOCATION_METHOD":"published report, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"University of Adelaide","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"24593","AGE_REF":"Elburg, M.A., Bons, P.D., Foden, J., Brugger, J., 2003. A newly defined Late Ordovician magmatic-thermal event in the Mt Painter Province, northern Flinders Ranges, South Australia. 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Torbernite analysis is from sample DU1; monazite analysis is from nearby sample Joel1. The results of both intercepts have been attributed to both samples. Asdymmetric 95% confidence intervals are +34/-36 Ma and +0.29/-0.33 Ma on the upper and lower intercepts respectively.","AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"mineral","LITHOLOGY_GROUP":"metasomatic rock","LITHOLOGY":"mineralisation","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"mine site specimen","SAMPLE_DESC":"Elburg et al. (2003): A sample (labelled DU1) of secondary uranium mineralisation (torbernite) was derived from the Number 6 workings near Mount Gee. Torbernite occurs along schistosity joints and as free crystals in vugs, and is the main uranium ore at the Number 6 workings.","SAMPLING_FEATURE_NAME":"Mount Gee No. 6 workings","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917616","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Mount Painter Block","GEOLOGICAL_REGION_NAME":"Adelaide Region","REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-30.2361716323,"LONG_GDA94":139.3373435282,"ELEV_M_AHD":null,"ACCURACY_M":200,"LOCATION_METHOD":"published report, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"University of Adelaide","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"24593","AGE_REF":"Elburg, M.A., Bons, P.D., Foden, J., Brugger, J., 2003. A newly defined Late Ordovician magmatic-thermal event in the Mt Painter Province, northern Flinders Ranges, South Australia. 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The Gluepot Granite: CA-TIMS geochronology and constraints on the timing of deformation on northeastern Eyre Peninsula. Geological Survey of South Australia. Report Book, 2016/00027, 18p.","AGE_PUBLICATION_LINKS":"https://pid.sarig.sa.gov.au/document/d20011631","AGE_ENTRY_DATE":"2025-11-18","AGE_LAST_UPDATED":"2026-05-14"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15462","geometry":{"type":"Point","coordinates":[135.2090922,-31.76475047]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15462,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9656677","IGSN":"10.60494/nbj8-d879","SAMPLENO":9656677,"SAMPLE_ID":"2721839","AGE_MA":1589.2,"AGE_MA_UNCERTAINTY":0.5,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.5,"NUMBER_OF_ANALYSES":5,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"isotope dilution: chemical abrasion and isotope dilution","ANALYTICAL_COLLECTION_SYSTEM":"TIMS: GV Isoprobe-T","LABORATORY_NAME":"Boise State University","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":11173,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU11173","STRAT_UNIT_NAME":"Mangaroongah Dacite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Mangaroongah Dacite, Glyde Hill Volcanic Complex","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid volcanic rock","LITHOLOGY":"dacite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"field site specimen","SAMPLE_DESC":"dacite; Jagodzinski et al 2023: Sample 2721839 is a weakly flow banded, sparsely porphyritic dacite from the Mangaroongah Dacite near the base of the complex, with minor small (0.4-2 mm) phenocrysts (plagioclase (3%) = quartz (2%) > biotite >> Fe-Ti oxide, apatite) in a groundmass (94%) comprising a very fine-grained devitrification mosaic of anhedral K-feldspar grains. Grain size of the K-feldspar mosaic varies from band to band, defining flow banding on the scale of several millimetres. Minor small ovoid vesicles are filled by anhedral quartz grains and fine-grained epidote. Infiltration by a small volume of hydrothermal fluid produced new alteration assemblage (hematite + albite + chlorite + epidote + leucoxene), with plagioclase crystals replaced by albite +/- chlorite +/- epidote +/- hematite, biotite replaced by chlorite, groundmass pervasively clouded by submicron-sized hematite and Fe-Ti oxides replaced by turbid dark leucoxene.","SAMPLING_FEATURE_NAME":"2721839","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS918449","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":"Gawler Region","REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-31.76475047,"LONG_GDA94":135.2090922,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"published report, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Petrotech Knowledge Australia","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75868","AGE_REF":"Jagodzinski, E.A., Reid, A.J., Crowley, J.L., Wade, C.E., 2023. Precise zircon U-Pb dating of the Mesoproterozoic Gawler large igneous province, South Australia. Results in Geochemistry, 10, article 100020, 16p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.ringeo.2022.100020","AGE_ENTRY_DATE":"2025-11-18","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14379","geometry":{"type":"Point","coordinates":[149.628552,-36.877442]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14379,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655763","IGSN":"10.60494/fbnb-7v44","SAMPLENO":9655763,"SAMPLE_ID":"TKB15b","AGE_MA":397.5,"AGE_MA_UNCERTAINTY":4.6,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.4,"NUMBER_OF_ANALYSES":7,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: Cameca IMS 1270 MC-ion microprobe","LABORATORY_NAME":"Swedish Museum of Natural History","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":22697,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU22697","STRAT_UNIT_NAME":"Pretty Point Tonalite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Pretty Point Tonalite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"tonalite","MODE_OF_OCCURRENCE":"pluton","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Kemp et al 2005 paraphrased: \" The sample is a microgranular enclave collected near a mingling zone within the Bega Batholith pluton and has phenocrysts of plagioclase and hornblende-ocellar quartz sparsely disseminated through a hornblende- and biotite-rich matrix. Radiating groundmass plagioclase laths are enclosed by poikilitic quartz, this being the ‘pseudodoleritic’ texture exhibited by similar microgranular enclaves. \"","SAMPLING_FEATURE_NAME":"TKB15b","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917572","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-36.877442,"LONG_GDA94":149.628552,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Kemp, A.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73063","AGE_REF":"Kemp, A.I.S., Hawkesworth, C.J., Paterson, B.A., Foster, G.L., Kinny, P.D., Whitehouse, M.J., Maas, R., EIMF, 2008. Exploring the plutonic-volcanic link: a zircon U-Pb, Lu-Hf and O isotope study of paired volcanic and granitic units from southeastern Australia. Transactions of the Royal Society of Edinburgh: Earth Sciences, 97(4), 337-355.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1017/S0263593300001498","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14448","geometry":{"type":"Point","coordinates":[149.2365278,-36.918222]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14448,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655764","IGSN":"10.60494/1hww-f087","SAMPLENO":9655764,"SAMPLE_ID":"Hospital","AGE_MA":366,"AGE_MA_UNCERTAINTY":8,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":0.3,"NUMBER_OF_ANALYSES":21,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"238U/206Pb and 207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"crystallisation of Hospital Porphyry","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":35852,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU35852","STRAT_UNIT_NAME":"Hospital Porphyry","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Hospital Porphyry","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous rock","LITHOLOGY":"porphyry","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"unknown","SAMPLE_DESC":"Sircombe & McQueen 2000 paraphrased:","SAMPLING_FEATURE_NAME":"Hospital","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917446","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-36.918222,"LONG_GDA94":149.2365278,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Sircombe, K.N.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"23329","AGE_REF":"Sircombe, K.N., McQueen, K.G., 2000. Zircon dating of Devonian-Carboniferous rocks from the Bombala area, New South Wales. Australian Journal of Earth Sciences, 47(6), 1041-1051.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1046/j.1440-0952.2000.00830.x","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14134","geometry":{"type":"Point","coordinates":[149.1960833,-36.9261667]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14134,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655765","IGSN":"10.60494/mb57-a815","SAMPLENO":9655765,"SAMPLE_ID":"Paradise","AGE_MA":365,"AGE_MA_UNCERTAINTY":10,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":1,"NUMBER_OF_ANALYSES":8,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"238U/206Pb and 207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"crystallisation of Paradise Porphyry","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":27533,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU27533","STRAT_UNIT_NAME":"Paradise Porphyry","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Paradise Porphyry","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous rock","LITHOLOGY":"porphyry","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"unknown","SAMPLE_DESC":"Biotite selvage around Sn, W mineralised vein. Schaltegger et al 2005 paraphrased \"At this locality a Sn and W-mineralized vein of 700m length cuts through both seriate and porphyritic granite (Fig. 1b). An approximately 30 cm wide biotite-rich selvage is developed at the southern end of the vein. The selvage is composed of ca. 90% (by volume) biotite, 4% fluorite, and 2% each of topaz, monazite, and zircon. \"","SAMPLING_FEATURE_NAME":"Paradise","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917547","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-36.9261667,"LONG_GDA94":149.1960833,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Sircombe, K.N.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"23329","AGE_REF":"Sircombe, K.N., McQueen, K.G., 2000. Zircon dating of Devonian-Carboniferous rocks from the Bombala area, New South Wales. Australian Journal of Earth Sciences, 47(6), 1041-1051.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1046/j.1440-0952.2000.00830.x","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14376","geometry":{"type":"Point","coordinates":[148.9247431,-37.040325]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14376,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655766","IGSN":"10.60494/yyns-cy42","SAMPLENO":9655766,"SAMPLE_ID":"BB46","AGE_MA":419.2,"AGE_MA_UNCERTAINTY":6,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1,"NUMBER_OF_ANALYSES":11,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"Delegate Monzogranite crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":77005,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU77005","STRAT_UNIT_NAME":"Delegate Monzogranite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Delegate","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"monzogranite","MODE_OF_OCCURRENCE":"pluton","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"I-type granite from the Berridale batholith. Ickert and Williams 2011 paraphrased: \"The dominant rock types in the Berridale–Kosciuszko region are granodiorite and granite, with subordinate tonalite. Gabbroic and dioritic rocks are rare and only occur in association with plutons of the Jindabyne Suite, or as small stocks in the metasedimentary screen between the Berridale and Kosciuszko Batholiths (Hine et al. 1978).\"","SAMPLING_FEATURE_NAME":"BB46","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917403","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-37.040325,"LONG_GDA94":148.9247431,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Ickert, R.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"67060","AGE_REF":"Ickert, R.B., Williams, I.S., 2011. U-Pb zircon geochronology of Silurian-Devonian granites in southeastern Australia: implications for the timing of the Benambran Orogeny and the I-S dichotomy. Australian Journal of Earth Sciences, 58(5), 501-516.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099.2011.562922","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14126","geometry":{"type":"Point","coordinates":[148.13390266,-35.26347387]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14126,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655767","IGSN":"10.60494/3w69-pg04","SAMPLENO":9655767,"SAMPLE_ID":"89843203","AGE_MA":411,"AGE_MA_UNCERTAINTY":5,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":20,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"granite emplacement age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"This sample in Stuart-Smith et al 1998 is incorrectly named as 98843203","AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"Gocup Granite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":"intrusion","SAMPLE_TYPE":"unknown","SAMPLE_DESC":"S-type granite. Stuart-Smith et al 1998 paraphrased \"The sample is from the Gocup Granite, a fine to coarse-grained biotite granite; minor coarse-grained muscovite-biotite granite. It intrudes the Bumnolee Creek Formation, is overlain by the Minjary Volcanics and is faulted against the Gooandra Volcanics. All zircons are clear, have length:width ratio of 3-5 and show little zoning. Many grains scontain inclusions of other minerals.\"","SAMPLING_FEATURE_NAME":"89843203","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917382","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-35.2634738699,"LONG_GDA94":148.1339026571,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"published report, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75836","AGE_REF":"Stuart-Smith, P.G., Hill, R.I., Rickard, M.J., Etheridge, M.A., 1992. The stratigraphy and deformation history of the Tumut region: Implications for the development of the Lachlan Fold Belt. Tectonophysics, 214(1-4), 211-237.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/0040-1951(92)90198-F","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14457","geometry":{"type":"Point","coordinates":[149.0444636,-34.83095435]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14457,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655768","IGSN":"10.60494/n9s6-jn07","SAMPLENO":9655768,"SAMPLE_ID":"MUND1","AGE_MA":478,"AGE_MA_UNCERTAINTY":5,"AGE_CONFIDENCE_LEVEL":"1 standard deviation","AGE_MSWD":null,"NUMBER_OF_ANALYSES":1,"CALCULATION_TYPE":"single analysis","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"Macquarie University","AGE_INTERPRETED_FROM_SOURCE":"maximum depositional age (sedimentary)","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"The youngest concordant grain (of 59 analyses) is Early Ordovician (478 +/- 5 Ma) with a corresponding peak at 475 Ma and is thus of no assistance in establishing a stratigraphic age.","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":13443,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU13443","STRAT_UNIT_NAME":"Mundoonen Sandstone","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Mundoonen Sandstone","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"medium-coarse grained siliciclastic rock","LITHOLOGY":"sandstone","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Glen et al 2016 paraprashed: \"This sample is extracted from the Mundoonen Sandstone. The Mundoonen Sandstone lies 52 km north of Canberra, lacks fossils, but lies above a latest Ordovician black shale and is faulted below Late Silurian volcanics (Sherwin, 2012). It consists of thick- and thin-bedded, coarse- to fine-grained sublithic to quartz-rich turbidites. Scattered grit-size quartz grains with angular crystal faces are probably volcanic. Scattered clasts of chert, phyllite and mudstone (Sherwin, 2012) were probably recycled from Early-Middle Ordovician turbidites. \"","SAMPLING_FEATURE_NAME":"MUND1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917486","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-34.8309543475,"LONG_GDA94":149.044463601,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"published report, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Saeed, A.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73264","AGE_REF":"Glen, R.A., Belousova, E.A., Griffin, W.L., 2016. Different styles of modern and ancient non-collisional orogens and implications for crustal growth: a Gondwanaland perspective. Canadian Journal of Earth Sciences, 53, 1372-1415.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1139/cjes-2015-0229","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14088","geometry":{"type":"Point","coordinates":[149.250254,-36.92218203]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14088,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655769","IGSN":"10.60494/csr4-rh50","SAMPLENO":9655769,"SAMPLE_ID":"Endeavour","AGE_MA":347,"AGE_MA_UNCERTAINTY":12,"AGE_CONFIDENCE_LEVEL":"1 standard deviation","AGE_MSWD":null,"NUMBER_OF_ANALYSES":12,"CALCULATION_TYPE":"mixture-modelled component","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"238U/206Pb and 207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"estimate of maximum deposition age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"There are no recorded Early Carboniferous ages in the region that would possibly correlate with this younger modelled age group. Assuming a Gaussian distribution for this estimated max dep age means a 28.1% probability that the 'true' model age is older than the 354 Ma boundary (10.6% for a 362 Ma boundary).","AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":33387,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU33387","STRAT_UNIT_NAME":"Rosemeath Formation","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Rosemeath Formation, Endeavour Lookout","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"medium-coarse grained siliciclastic rock","LITHOLOGY":"sandstone","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"unknown","SAMPLE_DESC":"Sircombe & McQueen 2000 paraphrased: This sample was taken from coarse sandstones from near the top of the Rosemeath Formation showing prominent cross-bedding.","SAMPLING_FEATURE_NAME":"Endeavour","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917426","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-36.9221820288,"LONG_GDA94":149.2502540022,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"published report, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"McQueen, K.G.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"23329","AGE_REF":"Sircombe, K.N., McQueen, K.G., 2000. Zircon dating of Devonian-Carboniferous rocks from the Bombala area, New South Wales. Australian Journal of Earth Sciences, 47(6), 1041-1051.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1046/j.1440-0952.2000.00830.x","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14408","geometry":{"type":"Point","coordinates":[149.25622009,-36.80073134]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14408,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655770","IGSN":"10.60494/65sp-h272","SAMPLENO":9655770,"SAMPLE_ID":"Kilbrechin","AGE_MA":410,"AGE_MA_UNCERTAINTY":4,"AGE_CONFIDENCE_LEVEL":"1 standard deviation","AGE_MSWD":null,"NUMBER_OF_ANALYSES":18,"CALCULATION_TYPE":"mixture-modelled component","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"238U/206Pb and 207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"estimate of maximum deposition age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":35851,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU35851","STRAT_UNIT_NAME":"Kilbrechin Conglomerate Member","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Kilbrechin Conglomerate Member","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"medium-coarse grained siliciclastic rock","LITHOLOGY":"conglomerate","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"unknown","SAMPLE_DESC":"Sircombe & McQueen 2000 paraphrased: This sample is from the Kilbrechin Conglomerate Member, West of Bibbenluke, is a dipping conglomeratic unit near the base of the Rosemeath Formation. The base of the sequence is well defined by a pebble-cobble conglomerate, overlain by coarse grit and sandstone with less prominent, red and drab-coloured shale and siltstone units. The sequence here is at least 250m thick.","SAMPLING_FEATURE_NAME":"Kilbrechin","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917466","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-36.8007313387,"LONG_GDA94":149.2562200885,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"published report, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"McQueen, K.G.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"23329","AGE_REF":"Sircombe, K.N., McQueen, K.G., 2000. Zircon dating of Devonian-Carboniferous rocks from the Bombala area, New South Wales. Australian Journal of Earth Sciences, 47(6), 1041-1051.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1046/j.1440-0952.2000.00830.x","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14875","geometry":{"type":"Point","coordinates":[139.30460679,-30.27280656]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14875,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655829","IGSN":"10.60494/zzan-7751","SAMPLENO":9655829,"SAMPLE_ID":"ME00PG2","AGE_MA":499,"AGE_MA_UNCERTAINTY":12,"AGE_CONFIDENCE_LEVEL":"1 standard deviation","AGE_MSWD":null,"NUMBER_OF_ANALYSES":2,"CALCULATION_TYPE":"isochron","GEOLOGICAL_EVENT":"deformation","ISOTOPIC_SYSTEM":"Rb/Sr","ISOTOPIC_RATIO":"87Rb/86Sr and 87Sr/86Sr","MINERAL":"Muscovite; K-feldspar","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"isotope dilution: ion exchange chromatography","ANALYTICAL_COLLECTION_SYSTEM":"TIMS: Finnigan MAT 262","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"Timing of deformation/folding pegmatite intruding basement rocks.","OTHER_AGE_INTERPRETED_FROM_SOURCE":"Could also approximate the magmatic crystallisation (i.e. emplacement) age of the pegmatite.","AGE_REMARK_FROM_SOURCE":"Two-point (muscovite-K-feldspar) isochron, with initial 87Sr/86Sr = 0.7308 +/- 0.0027 (2sigma)","AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":27205,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU27205","STRAT_UNIT_NAME":"Mount Gee Sinter","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Mt Gee Formation","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"pegmatite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Elburg et al. (2003): A prominent folded pegmatite was found in schistose (probably altered Mt Neill granite: Elburg et al. 2001) basement rocks in Arkaroola Creek. The pegmatite is up to 1.2 m wide, with K-feldspar, muscovite and quartz towards its margin, and is more quartz rich in the middle. Tourmaline is found in the host rocks next to the pegmatite. Sample ME00PG2 consists of pieces of K-feldspar and muscovite that were chipped off this pegmatite. Dating of this sample was undertaken to obtain a maximum age of the Delamerian deformation.","SAMPLING_FEATURE_NAME":"ME00PG2","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917612","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Mount Painter Block","GEOLOGICAL_REGION_NAME":"Adelaide Region","REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-30.2728065585,"LONG_GDA94":139.3046067884,"ELEV_M_AHD":null,"ACCURACY_M":200,"LOCATION_METHOD":"published report, method unknown","LOCATION_DESC":"Horizontal datum = AMG66 Zone 54; verified using creekside location of ME00PG2 (\"Folded pegmatite\"; Fig 1b of Elburg et al., 2003).","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"University of Adelaide","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"24593","AGE_REF":"Elburg, M.A., Bons, P.D., Foden, J., Brugger, J., 2003. A newly defined Late Ordovician magmatic-thermal event in the Mt Painter Province, northern Flinders Ranges, South Australia. Australian Journal of Earth Sciences, 50(4), 611-631.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1046/j.1440-0952.2003.01016.x","AGE_ENTRY_DATE":"2024-07-12","AGE_LAST_UPDATED":"2024-09-27"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14782","geometry":{"type":"Point","coordinates":[139.33179514,-30.25152933]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14782,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655830","IGSN":"10.60494/zc22-ce16","SAMPLENO":9655830,"SAMPLE_ID":"ME01GT2","AGE_MA":474.6,"AGE_MA_UNCERTAINTY":2,"AGE_CONFIDENCE_LEVEL":"1 standard deviation","AGE_MSWD":null,"NUMBER_OF_ANALYSES":1,"CALCULATION_TYPE":"concordia (Ludwig)","GEOLOGICAL_EVENT":"deformation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/235U and 206Pb/238U","MINERAL":"Monazite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"isotope dilution: ion exchange chromatography","ANALYTICAL_COLLECTION_SYSTEM":"TIMS: Finnigan MAT 262","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"Deformation associated with shear-band development in basement shear zone.","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Single bulk analysis of monazite. MSWD of concordance = 2.5, probability of fit (concordance) = 0.12. As this was a bulk monazite separate, there is a chance that the age represents a mixing age between primary and secondary monazite. However, virtually all monazite is associated with the biotite that defines the shear bands, suggesting that the monazite formed by new growth. If it were a mixed age, the age of the new growth would be even younger than 475 Ma because the monazite associated with the intrusion would have had an age of the order of 1570 Ma (Elburg et al. 2001).","AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":27205,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU27205","STRAT_UNIT_NAME":"Mount Gee Sinter","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Mt Gee Formation","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"fault or shear rock","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Elburg et al. (2003): ME01GT2 was sampled from a late shear zone in basement granite around Sunshine Pound. The sample is extraordinarily rich in monazite that appears to be a secondary mineral, perhaps related to the development of the shear zone. Other mineral constituents of this sample are plagioclase, quartz, K-feldspar, biotite, rutile and minor muscovite. The phyllosilicates define the shear fabric within this sample, and both rutile and monazite are associated with the biotite.","SAMPLING_FEATURE_NAME":"ME01GT2","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917613","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Mount Painter Block","GEOLOGICAL_REGION_NAME":"Adelaide Region","REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-30.2515293297,"LONG_GDA94":139.3317951394,"ELEV_M_AHD":null,"ACCURACY_M":200,"LOCATION_METHOD":"published report, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"University of Adelaide","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"24593","AGE_REF":"Elburg, M.A., Bons, P.D., Foden, J., Brugger, J., 2003. A newly defined Late Ordovician magmatic-thermal event in the Mt Painter Province, northern Flinders Ranges, South Australia. Australian Journal of Earth Sciences, 50(4), 611-631.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1046/j.1440-0952.2003.01016.x","AGE_ENTRY_DATE":"2024-07-12","AGE_LAST_UPDATED":"2024-09-27"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14780","geometry":{"type":"Point","coordinates":[139.34162354,-30.24736853]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14780,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655831","IGSN":"10.60494/zj1d-k255","SAMPLENO":9655831,"SAMPLE_ID":"ME00DI2","AGE_MA":442.3,"AGE_MA_UNCERTAINTY":3.7,"AGE_CONFIDENCE_LEVEL":"1 standard deviation","AGE_MSWD":null,"NUMBER_OF_ANALYSES":2,"CALCULATION_TYPE":"isochron","GEOLOGICAL_EVENT":"hydrothermal alteration","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/235U and 206Pb/238U","MINERAL":"Titanite; Diopside","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"isotope dilution: ion exchange chromatography","ANALYTICAL_COLLECTION_SYSTEM":"TIMS: Finnigan MAT 262","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"Crystallisation of vein-hosted euhedral titanite and diopside during hydrothermal alteration of the host Mesoproterozoic A-type granite.","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Two-point (titanite-diopside) isochron, with initial 206Pb/204Pb = 18.56. Misspelt as ME99DI2 in some tables and figures.","AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metasomatic rock","LITHOLOGY":"vein","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Elburg et al. (2003): Veins with large (up to 60 cm long), often euhedral, crystals of diopside, with or without titanite (euhedral, up to 20 cm diameter), are found in a creek section in one of the Mesoproterozoic A-type granites in the basement. The veins are up to 1.5 m wide and some can be followed along strike from the bottom of the creek to the top of the western ridge (170 m), where they are cut off by a fault. The crystals appear to have grown into open space. There is no evidence that any of the veins have been folded. Most of the original diopside has been retrogressed to actinolite. Later minerals in the veins are calcite, quartz and hematite. The latter two minerals often overgrow the diopside and titanite. Sample ME00DI2 consists of loose crystals of diopside, titanite and calcite that were pried out of a smaller (3 cm thick) vein.","SAMPLING_FEATURE_NAME":"ME00DI2","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS574777","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Mount Painter Block","GEOLOGICAL_REGION_NAME":"Adelaide Region","REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-30.2473685331,"LONG_GDA94":139.3416235421,"ELEV_M_AHD":null,"ACCURACY_M":200,"LOCATION_METHOD":"published report, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"University of Adelaide","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"24593","AGE_REF":"Elburg, M.A., Bons, P.D., Foden, J., Brugger, J., 2003. A newly defined Late Ordovician magmatic-thermal event in the Mt Painter Province, northern Flinders Ranges, South Australia. Australian Journal of Earth Sciences, 50(4), 611-631.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1046/j.1440-0952.2003.01016.x","AGE_ENTRY_DATE":"2024-07-12","AGE_LAST_UPDATED":"2024-09-27"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14255","geometry":{"type":"Point","coordinates":[151.743889,-32.948611]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14255,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655683","IGSN":"10.60494/f5rt-bm43","SAMPLENO":9655683,"SAMPLE_ID":"DBN - 1","AGE_MA":255.59,"AGE_MA_UNCERTAINTY":0.095,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":0.64,"NUMBER_OF_ANALYSES":5,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"isotope dilution: chemical abrasion and isotope dilution","ANALYTICAL_COLLECTION_SYSTEM":"TIMS: GV Isoprobe-T","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"age of crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":"255.65 +/- 0.16 n = 7; MSWD 1.22","AGE_REMARK_FROM_SOURCE":"The sample DBN-1 records two possible ages of crystallisation: one at 255.65 +/-  0.16 Ma (based on 7 of 10 grains), and another at 255.59 +/- 0.10 Ma (based on 5 of 10 grains). The age of 255.59 +/- 0.10 Ma is regarded as the most suitable age of crystallisation as it belongs to the youngest most coherent group and exibits low MSWD.","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":14198,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU14198","STRAT_UNIT_NAME":"Nobbys Tuff","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Nobbys Tuff","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous volcanic rock","LITHOLOGY":"vitric tuff","MODE_OF_OCCURRENCE":"bed","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Maravelis et al 2020 paraphrased \"Petrographic analysis of the tuffs studied suggests they are composed of vitric, crystal, and lithic fragments, but the lithic component occurs in a small number of samples. The crystals are represented principally by quartz, plagioclase and biotite. K-feldspar is rare and Ti-rich biotite occurs in most of the samples. The tuff beds for samples DBN-1 and DBN-2 are 2-6 m thick and separated by thick (3-5 m) coal deposits (Nobbys Coal Seam). DBN-1 was taken from the lower tuff bed under Nobbys Coal Seam.\"","SAMPLING_FEATURE_NAME":"BC-04","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917404","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Sydney Basin","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.948611,"LONG_GDA94":151.743889,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75829","AGE_REF":"Maravelis, A.G., Breckenridge, J., Ruming, K., Holmes, E., Amelin, Y., Collins, W.J., 2020, Re-assessing the Upper Permian Stratigraphic Succession of the Northern Sydney Basin, Australia, by CA-IDTIMS. Geosciences, 10(11).","AGE_PUBLICATION_LINKS":"https://doi.org/10.3390/geosciences10110474","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14378","geometry":{"type":"Point","coordinates":[145.15365083,-30.86373787]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14378,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655684","IGSN":"10.60494/cr6n-hd33","SAMPLENO":9655684,"SAMPLE_ID":"G459","AGE_MA":289.2,"AGE_MA_UNCERTAINTY":1.7,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II & SHRIMP RG","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"emplacement","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"This is a pooled age from 2 analytical sessions on the same sample using SHRIMP II (288.8 +/- 2.6 Ma) & SHRIMP RG (289.5 +/- 2.3 Ma).","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":41050,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU41050","STRAT_UNIT_NAME":"Banalasta Monzogranite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Banalasta monzogranite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"monzogranite","MODE_OF_OCCURRENCE":"pluton","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Jeon et al 2012 paraphrased: \"The rocks of the Bundarra Supersuite are felsic monzogranites. Without exception their CIPW normative quartz, albite and orthoclase compositions plot extremely close to the experimentally determined minimum-temperature melt compositions of Tuttle and Bowen (1958) at 50-100 MPa (Chappell, 2010). There is no evidence of extended fractional crystallization, only 2 of 47 analyzed samples have Rb contents slightly above 250 ppm (http://brucechappell.com.au/). The granites are mostly very coarse-grained (3-10 mm) and commonly porphyritic, with Kfeldspar phenocrysts up to 80 mm long. Fe3+:Fe2+ ratios are low, reflected in the presence of ilmenite rather than magnetite, and the K-feldspar in these reduced rocks is always white. All the rocks are Al-saturated, with an average of 1.2% normative corundum, which is reflected in the ubiquitous presence of muscovite, cordierite, and rarely almandine-rich garnet. The cordierite occurs as euhedral crystals up to 20 mm long with well developed prismatic faces and commonly rimmed by muscovite. Its abundance ranges from 1% in the most biotite-rich granites to trace amounts in the more felsic granites (Flood and Shaw, 1975). Apatite always occurs as large prisms. REE patterns show light REE enrichment and slight negative Eu anomalies (Shaw and Flood, 1981). Zircon was extracted from samples of three plutons from the length of the Bundarra Supersuite, the Banalasta monzogranite in the south, the Linton monzogranite in the north, and the Copeton monzogranite near the centre.\" Zircon grains are described as clear, euhedral, and unaltered.","SAMPLING_FEATURE_NAME":"G459","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917432","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"New England Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-30.8637378657,"LONG_GDA94":145.1536508268,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"personal communication, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jeon, H.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73132; 75827","AGE_REF":"Jeon, H., 2012, U-Pb, Lu-Hf and O isotopes in zircon from late palaeozoic granites across orogens, Southeastern Australia [PhD thesis]. Australian National University, Canberra.; Jeon, H., Williams, I.S., Chappell, B.W., 2012. Magma to mud to magma: Rapid crustal recycling by Permian granite magmatism near the eastern Gondwana margin. Earth and Planetary Science Letters, 319-320, 104-117.","AGE_PUBLICATION_LINKS":"Not Available; https://doi.org/10.25911/5d611b2687a60","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14289","geometry":{"type":"Point","coordinates":[147.93019,-33.01755]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14289,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655685","IGSN":"10.60494/03gn-2e85","SAMPLENO":9655685,"SAMPLE_ID":"NP16TW122","AGE_MA":438.8,"AGE_MA_UNCERTAINTY":4.4,"AGE_CONFIDENCE_LEVEL":"1 standard deviation","AGE_MSWD":0.76,"NUMBER_OF_ANALYSES":29,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"238U/206Pb and 207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: unknown model","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: unknown model","LABORATORY_NAME":"University of Tasmania","AGE_INTERPRETED_FROM_SOURCE":"crystallisation age of this intrusion","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"Two-Thirty intrusive complex -Zero porphyry","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate intrusive rock","LITHOLOGY":"monzonite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"unknown","SAMPLE_DESC":"Wells et al 2021 paraphrased \"Zero porphyry: Variable from aphanitic to crystal crowded typically with a gradational contact. Plagioclase, alkali-feldspar, augite + biotite + magnetite + anhydrite phenocrysts in aphanitic to fine-grained groundmass of alkali-feldspar 95%.\"","SAMPLING_FEATURE_NAME":"Two-Thirty prospect - D240","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917581","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-33.01755,"LONG_GDA94":147.93019,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73287","AGE_REF":"Wells, T.J., Cooke, D.R., Baker, M.J., Zhang, L., Meffre, S., Steadman, J., Norman, M.D., Hoye, J.L., 2021. Geology and geochronology of the Two-Thirty prospect, Northparkes district, NSW. Australian Journal of Earth Sciences, 68(5), 659-683.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099.2021.1861095","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14127","geometry":{"type":"Point","coordinates":[146.3214375,-33.3691719]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14127,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655699","IGSN":"10.60494/n35a-jd60","SAMPLENO":9655699,"SAMPLE_ID":"8131rgc33.1","AGE_MA":414,"AGE_MA_UNCERTAINTY":13,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.87,"NUMBER_OF_ANALYSES":10,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"age of crystallisation of the rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"The chi-square value of 1.87 is only slightly greater than unity, but does indicate some geological source to the error within the grouped population.","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":18968,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU18968","STRAT_UNIT_NAME":"Ural Volcanics","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Ural Volcanics","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous rock","LITHOLOGY":"porphyry","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Wilde 2001 paraphrased \"The sample is extracted from a porphyritic sub-micrographic latite, where the zirocons are clear to pale brown/pink in colour and are mostly small, sub- to euhedral, equidimensional grains. A few more rounded grains with poorly-developed faces are present and some of these have slightly darker, rather ill-defined cores. Inclusions are not common; where present, they are small and stubby.\"","SAMPLING_FEATURE_NAME":"8131rgc33.1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917367","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-33.3691719,"LONG_GDA94":146.3214375,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"74391; 75839","AGE_REF":"Colquhoun, G.P., Meakin, N.S., Cameron, R.G., 2005, Cargelligo 1:250 000 Geological Sheet SI/556, 3rd edition. Geological Survey of New South Wales Explanatory Notes, 291.; Wilde, S.A., 2001, SHRIMP U-Pb Dating of Four Volcanic Samples from the Cargelligo Area NSW. Geological Survey of New South Wales Report GS, 2001/531.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/product/451; https://search.geoscience.nsw.gov.au/report/R00041469","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14461","geometry":{"type":"Point","coordinates":[149.081336,-36.24035]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14461,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655751","IGSN":"10.60494/94b9-0380","SAMPLENO":9655751,"SAMPLE_ID":"95-35","AGE_MA":435,"AGE_MA_UNCERTAINTY":8,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"metamorphism","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Monazite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"age of metamorphic monazite growth","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"This age is indistinguishable from the Pb/U age of zircon from the same rock (431.7 +/- 10.9 Ma) that suggests that monazite and zircon crystallised at the same time. The convergence of apparent monazite ages in this study reflects resetting of pre-existing monazite U-Th-Pb isotopic systems and the growth of new monazite during partial melting and magmatism.","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":4572,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU4572","STRAT_UNIT_NAME":"Cooma Metamorphic Complex","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Cooma Complex","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"high grade metamorphic rock","LITHOLOGY":"migmatite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Williams 2001 paraphrased: \"Leucosome migmatite. The migmatite consists of disrupted, but in places broadly continuous, bands of metapsammite in a matrix of coarser grained metapelite containing widespread evidence (veins and localised coarse-grained quartzo-feldspathic segregations) of smallscale partial melting. The leucosome sample was taken from a vein ~0.1 m thick (as distinct from a localised partial melt patch) and consisting mainly of coarse (>5 mm) quartz, cordierite and feldspar. Cordierite, in contrast to that in the melanosome, is not poikilitic and, with the exception of scattered sillimanite needles, is relatively inclusion free. Ragged andalusite grains are up to 2 mm diameter. Rare biotite flakes up to 1 mm are associated with masses of fibrolitic sillimanite and contain abundant pleochroic haloes around radioactive inclusions. New zircon growth is ubiquitous in the migmatite samples. Much less zircon was recovered from the leucosome. As in the melanosome the crystals are fine-grained (40-100 um), but they are consistently more prismatic, with aspect ratios ranging from 2 to 5, commonly with large {211} crystal faces. Cathodoluminescence imaging shows that, in contrast to the melanosome zircon, the crystals are dominated by new growth. Pyramidal overgrowths commonly 50 um, and in some cases up to 100 um, thick surround zircon cores that are smaller on average than those in the melanosome. It is not unusual for the overgrowth to exceed 70% of the volume of the grain. Even so, the overgrowths on the prism faces can be very thin, and in some cases barely cover the irregular surface of the core. The overgrowths are consistently weakly luminescent, and any zoning present is indistinct, broad and simply euhedral. Like the accompanying monazite, the new zircon is rich in acicular inclusions that are probably sillimanite.\"","SAMPLING_FEATURE_NAME":"95-34/35","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917391","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-36.24035,"LONG_GDA94":149.081336,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Williams, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"23546","AGE_REF":"Williams, I.S., 2001. Response of detrital zircon and monazite, and their U-Pb isotopic systems, to regional metamorphism and host-rock partial melting, Cooma Complex, southeastern Australia. Australian Journal of Earth Sciences, 48(4), 557-580.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1046/j.1440-0952.2001.00883.x","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14410","geometry":{"type":"Point","coordinates":[149.057752,-36.243998]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14410,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655752","IGSN":"10.60494/4e7g-6378","SAMPLENO":9655752,"SAMPLE_ID":"95-64","AGE_MA":433.7,"AGE_MA_UNCERTAINTY":9.9,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"metamorphism","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Monazite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"metamorphism","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"The convergence of apparent monazite ages in this study reflects resetting of pre-existing monazite U-Th-Pb isotopic systems and the growth of new monazite during partial melting and magmatism.","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":4572,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU4572","STRAT_UNIT_NAME":"Cooma Metamorphic Complex","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Cooma Complex","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"foliated metamorphic rock","LITHOLOGY":"gneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"K-feldspar metapelite gneiss. Williams 2001 paraphrased \"Cordierite–andalusite–K-feldspar zone metasediment samples were collected from a deeply weathered road cut a few hundred metres inside the sillimanite isograd of Chappell and White (1976), namely at a slightly higher grade than the K-feldspar isograd, but well outside the sillimanite isograd of later workers (Johnson 1992). Pelitic and psammitic layers are clearly recognisable on an outcrop scale, but are disrupted and sinuous. Samples were taken 0.1 m apart from adjacent metapelitic (95-64) and metapsammitic (95-65) layers. The metapsammite is the finer grained, consisting mainly of quartz, biotite and minor muscovite. Rare fibrolitic sillimanite is associated with biotite, but there is no andalusite. The coarser grained metapelite is much more aluminous, consisting of quartz, biotite, muscovite, coarse poikilitic andalusite and minor K-feldspar, plagioclase and fibrolitic sillimanite. Biotite is mostly coarse grained (<\/= 600 um) and, in contrast to biotite in the lower grade samples, is crowded with pleochroic haloes, indicating the presence of radioactive inclusions, such as monazite and zircon. Biotite in the adjacent metapsammite contains similar haloes, but far fewer of them. Small yield and fine grainsize (<100 um) are features of the metapelite monazite. The grains are nearly colourless, high clarity, subhedral to euhedral crystals, most with well-developed crystal faces. The few tiny inclusions present are either transparent crystals or possibly trapped fluid. The grains still contain patches of complex zoning, but are dominated by relatively homogeneous monazite that coats the grains, forming their crystal faces. At this metamorphic grade, host-rock composition, and presumably fluid content and composition, has determined whether monazite continues to dissolve or begins to reprecipitate.\"","SAMPLING_FEATURE_NAME":"95-64/65","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917392","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-36.243998,"LONG_GDA94":149.057752,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Williams, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"23546","AGE_REF":"Williams, I.S., 2001. Response of detrital zircon and monazite, and their U-Pb isotopic systems, to regional metamorphism and host-rock partial melting, Cooma Complex, southeastern Australia. Australian Journal of Earth Sciences, 48(4), 557-580.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1046/j.1440-0952.2001.00883.x","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14303","geometry":{"type":"Point","coordinates":[149.057752,-36.243998]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14303,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655753","IGSN":"10.60494/3f0s-da47","SAMPLENO":9655753,"SAMPLE_ID":"95-65","AGE_MA":428.1,"AGE_MA_UNCERTAINTY":9.3,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"metamorphism","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Monazite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"age of metamorphism","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"The convergence of apparent monazite ages in this study reflects resetting of pre-existing monazite U-Th-Pb isotopic systems and the growth of new monazite during partial melting and magmatism. The large analytical uncertainties in the analyses is due to a large common Pb content.","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":4572,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU4572","STRAT_UNIT_NAME":"Cooma Metamorphic Complex","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Cooma Complex","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"foliated metamorphic rock","LITHOLOGY":"gneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"K-feldspar metapsammite gneiss. Williams 2001 paraphrased \"Cordierite–andalusite–K-feldspar zone metasediment samples were collected from a deeply weathered road cut a few hundred metres inside the sillimanite isograd of Chappell and White (1976), namely at a slightly higher grade than the K-feldspar isograd, but well outside the sillimanite isograd of later workers (Johnson 1992). Pelitic and psammitic layers are clearly recognisable on an outcrop scale, but are disrupted and sinuous. Samples were taken 0.1 m apart from adjacent metapelitic (95-64) and metapsammitic (95-65) layers. The metapsammite is the finer grained, consisting mainly of quartz, biotite and minor muscovite. Rare fibrolitic sillimanite is associated with biotite, but there is no andalusite. The coarser grained metapelite is much more aluminous, consisting of quartz, biotite, muscovite, coarse poikilitic andalusite and minor K-feldspar, plagioclase and fibrolitic sillimanite. Biotite is mostly coarse grained (<\/= 600 um) and, in contrast to biotite in the lower grade samples, is crowded with pleochroic haloes, indicating the presence of radioactive inclusions, such as monazite and zircon. Biotite in the adjacent metapsammite contains similar haloes, but far fewer of them. Monazite recovery from the metapsammite was extremely small, both in size and number of grains (30 grains <50 um diameter). Delicate and irregularly shaped, embayed and with highly polished surfaces, these appear to be the last remnants of grains mostly destroyed by dissolution. Some original monazite remains, however, remnants of zoning structure still being visible in the backscattered electron images despite the dominance of thick homogeneous mantles.\"","SAMPLING_FEATURE_NAME":"95-64/65","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917392","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-36.243998,"LONG_GDA94":149.057752,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Williams, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"23546","AGE_REF":"Williams, I.S., 2001. Response of detrital zircon and monazite, and their U-Pb isotopic systems, to regional metamorphism and host-rock partial melting, Cooma Complex, southeastern Australia. Australian Journal of Earth Sciences, 48(4), 557-580.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1046/j.1440-0952.2001.00883.x","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14198","geometry":{"type":"Point","coordinates":[149.025576,-36.257939]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14198,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655754","IGSN":"10.60494/zh1y-qq73","SAMPLENO":9655754,"SAMPLE_ID":"95-32","AGE_MA":466,"AGE_MA_UNCERTAINTY":8,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":3.2,"NUMBER_OF_ANALYSES":12,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"sediment age of deposition","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":4572,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU4572","STRAT_UNIT_NAME":"Cooma Metamorphic Complex","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Cooma Complex","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"foliated metamorphic rock","LITHOLOGY":"schist","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Williams 2001 paraphrased: \"Samples of the Cooma Complex were collected along an approximately east-west transect extending westwards. Biotite zone metasediment sample 95-32 was taken from a road cut where slaty metapelites with metapsammitic interbeds up to ~0.5 m wide outcrop in isoclinal folds with near-vertical axial planes. The sampled unit was a 0.1 m layer of semipelite, selected because comparison of zircon provenance between low-grade metasediment and the granodiorite required a sample of a ‘fertile’ lithology that might possibly yield a low-temperature partial melt. The rock is predominantly recrystallised granular quartz, with fine flakes of biotite defining the schistosity. Zircon from the biotite schist has a wide range of grainsize (30-250 um), colour (colourless to pale-pink to purple to brown), clarity, and shape (sharply euhedral whole grains to angular fragments to strongly rounded remnants). Such variation is to be expected in a physically and chemically resistant detrital mineral derived from a range of sources of different ages. Strongly rounded grains dominate the population, their frosted surfaces, characteristic of brittle grains worn by abrasion during sediment transport and reworking, visible under an optical microscope. Even the ‘euhedral’ grains are damaged, most obviously at the corners of the crystals and along the edges where faces meet. Such damage is most evident in secondary electron images, and is visible in cathodoluminescence images as microindentations around the edge of most rounded grains. Except for the near-euhedral grains, internal zoning is truncated at the broken or worn grain margins.\"","SAMPLING_FEATURE_NAME":"95-32","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917390","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-36.257939,"LONG_GDA94":149.025576,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Williams, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"23546","AGE_REF":"Williams, I.S., 2001. Response of detrital zircon and monazite, and their U-Pb isotopic systems, to regional metamorphism and host-rock partial melting, Cooma Complex, southeastern Australia. Australian Journal of Earth Sciences, 48(4), 557-580.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1046/j.1440-0952.2001.00883.x","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14166","geometry":{"type":"Point","coordinates":[149.88796,-36.387174]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14166,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655755","IGSN":"10.60494/ndwn-nh10","SAMPLENO":9655755,"SAMPLE_ID":"TKB11","AGE_MA":385.2,"AGE_MA_UNCERTAINTY":2.6,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.5,"NUMBER_OF_ANALYSES":22,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: Cameca IMS 1270 MC-ion microprobe","LABORATORY_NAME":"Swedish Museum of Natural History","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":21510,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU21510","STRAT_UNIT_NAME":"Cobargo Granodiorite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Cobargo Granodiorite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"monzogranite","MODE_OF_OCCURRENCE":"pluton","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Kemp et al 2005 paraphrased: \"The sample is a felsic, porphyritic monzogranite, where hornblende and plagioclase phenocrysts (to 1 cm) are sparsely distributed through a felsic, microgranitic matrix. Poikilitic orthoclase is conspicuous in thin section. \"","SAMPLING_FEATURE_NAME":"TKB2/11","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917573","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-36.387174,"LONG_GDA94":149.88796,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Kemp, A.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73063","AGE_REF":"Kemp, A.I.S., Hawkesworth, C.J., Paterson, B.A., Foster, G.L., Kinny, P.D., Whitehouse, M.J., Maas, R., EIMF, 2008. Exploring the plutonic-volcanic link: a zircon U-Pb, Lu-Hf and O isotope study of paired volcanic and granitic units from southeastern Australia. Transactions of the Royal Society of Edinburgh: Earth Sciences, 97(4), 337-355.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1017/S0263593300001498","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14119","geometry":{"type":"Point","coordinates":[149.88796,-36.387174]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14119,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655756","IGSN":"10.60494/x31m-6918","SAMPLENO":9655756,"SAMPLE_ID":"TKB2","AGE_MA":385.3,"AGE_MA_UNCERTAINTY":2.1,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.97,"NUMBER_OF_ANALYSES":38,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: Cameca IMS 1270 MC-ion microprobe","LABORATORY_NAME":"Swedish Museum of Natural History","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":33671,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU33671","STRAT_UNIT_NAME":"Quaama Granodiorite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Quaama Granodiorite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate intrusive rock","LITHOLOGY":"diorite","MODE_OF_OCCURRENCE":"pluton","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Kemp et al 2005 paraphrased: \" The sample is a medium- to coarse grained diorite, where aggregates of blocky plagioclase grains (~5 mm), orthopyroxene prisms and amphibolerimmed augite masses occur in a finer groundmass of plagioclase and pyroxene laths, interstitial to poikilitic hornblende, biotite and minor quartz. Chlorite ovoids in the centre of orthopyroxene are possibly after olivine. The larger plagioclase grains occasionally contain irregularly shaped cores that are outlined by tiny trains of pyroxene crystals. Zircons in the diorite are localised along plagioclase grain boundaries or embedded within interstitial amphibole. \"","SAMPLING_FEATURE_NAME":"TKB2/11","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917573","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-36.387174,"LONG_GDA94":149.88796,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Kemp, A.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73063","AGE_REF":"Kemp, A.I.S., Hawkesworth, C.J., Paterson, B.A., Foster, G.L., Kinny, P.D., Whitehouse, M.J., Maas, R., EIMF, 2008. Exploring the plutonic-volcanic link: a zircon U-Pb, Lu-Hf and O isotope study of paired volcanic and granitic units from southeastern Australia. Transactions of the Royal Society of Edinburgh: Earth Sciences, 97(4), 337-355.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1017/S0263593300001498","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14159","geometry":{"type":"Point","coordinates":[148.608559,-36.424956]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14159,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655757","IGSN":"10.60494/0vv7-5b05","SAMPLENO":9655757,"SAMPLE_ID":"7959-111","AGE_MA":417.9,"AGE_MA_UNCERTAINTY":3.9,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":0.6,"NUMBER_OF_ANALYSES":9,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: HP/Agilent 4500 series","LABORATORY_NAME":"Macquarie University","AGE_INTERPRETED_FROM_SOURCE":"crystallisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":9831,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU9831","STRAT_UNIT_NAME":"Kosciusko Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Kosciusko tonalite, Jindabyne","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"tonalite","MODE_OF_OCCURRENCE":"intrusion","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Belousova et al 2006 paraphrased: \"The Berridale Adamellite and Kosciusko Tonalite belong to the 700 km wide Paleozoic Lachlan Fold Belt (LFB) of Eastern Australia, which is characterized by a ubiquitous Ordovician flysch cut by granitoids of different geochemical character. Chappell & White (1974, 1992) introduced the terms ‘S’ and ‘I’, which was a major contribution to granite classification at the time. They considered that the composition of granites reflects their source regions and showed that there are two contrasting granitoid types in the Kosciusko and Berridale Batholiths: the S-types derived from the partial melting of metasedimentary rocks, and the I-types from igneous sources that had not been through surface weathering processes. There are two morphological (zircon) types recognized in this sample. Type 1 zircons show a well-developed prism and pyramids. They belong to subtypes S16-S17 and/or S21-S22 of Pupin's (1980) typological classification. Such morphological forms are common in zircon from tonalites. Type 2 zircons from the Kosciusko tonalite have a well-developed prism and pyramids. They correspond to subtypes L2-L3 and/or S2-S3 and/or S7-S8. This morphological type is more typical of zircon from aluminous monzogranites and granodiorites.\"","SAMPLING_FEATURE_NAME":"7959-111","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917365","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-36.424956,"LONG_GDA94":148.608559,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Chappell, B.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75816","AGE_REF":"Belousova, E.A., Griffin, W.L., O'Reilly, S.Y., 2006. Zircon Crystal Morphology, Trace Element Signatures and Hf Isotope Composition as a Tool for Petrogenetic Modelling: Examples From Eastern Australian Granitoids. Journal of Petrology, 47(2), 329–353.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1093/petrology/egi077","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14425","geometry":{"type":"Point","coordinates":[148.6020913,-36.5295982]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14425,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655758","IGSN":"10.60494/wd5c-r710","SAMPLENO":9655758,"SAMPLE_ID":"KB165","AGE_MA":434.6,"AGE_MA_UNCERTAINTY":4.3,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":3.6,"NUMBER_OF_ANALYSES":14,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"Jillamatong Granodiorite crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Note: the reported 95% uncertainty for this age in Table 2 of Ickert & Williams (2011) is 4.0, whereas Table 1 reports 4.3.","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":29245,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU29245","STRAT_UNIT_NAME":"Jillamatong Granodiorite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Jillamatong","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granodiorite","MODE_OF_OCCURRENCE":"pluton","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"S-type granite from the Kosciuszko batholith. Ickert and Williams 2011 paraphrased: \"The dominant rock types in the Berridale–Kosciuszko region are granodiorite and granite, with subordinate tonalite. Gabbroic and dioritic rocks are rare and only occur in association with plutons of the Jindabyne Suite, or as small stocks in the metasedimentary screen between the Berridale and Kosciuszko Batholiths (Hine et al. 1978).","SAMPLING_FEATURE_NAME":"KB165","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917453","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-36.5295982,"LONG_GDA94":148.6020913,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Ickert, R.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"67060","AGE_REF":"Ickert, R.B., Williams, I.S., 2011. U-Pb zircon geochronology of Silurian-Devonian granites in southeastern Australia: implications for the timing of the Benambran Orogeny and the I-S dichotomy. Australian Journal of Earth Sciences, 58(5), 501-516.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099.2011.562922","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14319","geometry":{"type":"Point","coordinates":[148.705648,-36.5990384]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14319,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655759","IGSN":"10.60494/76tg-2398","SAMPLENO":9655759,"SAMPLE_ID":"MN99-6","AGE_MA":414.6,"AGE_MA_UNCERTAINTY":4.1,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":4.2,"NUMBER_OF_ANALYSES":15,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"Blind Gabbro crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Note: the reported 95% uncertainty for this age in Table 2 of Ickert & Williams (2011) is 3.7, whereas Table 1 reports 4.1.","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":1955,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU1955","STRAT_UNIT_NAME":"Blind Gabbro","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Blind","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"basic intrusive rock","LITHOLOGY":"gabbro","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"From the Kosciuszko batholith. Ickert and Williams 2011 paraphrased: \"The dominant rock types in the Berridale–Kosciuszko region are granodiorite and granite, with subordinate tonalite. Gabbroic and dioritic rocks are rare and only occur in association with plutons of the Jindabyne Suite, or as small stocks in the metasedimentary screen between the Berridale and Kosciuszko Batholiths (Hine et al. 1978)..","SAMPLING_FEATURE_NAME":"MN99-6","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917480","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-36.5990384,"LONG_GDA94":148.705648,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Ickert, R.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"67060","AGE_REF":"Ickert, R.B., Williams, I.S., 2011. U-Pb zircon geochronology of Silurian-Devonian granites in southeastern Australia: implications for the timing of the Benambran Orogeny and the I-S dichotomy. Australian Journal of Earth Sciences, 58(5), 501-516.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099.2011.562922","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14187","geometry":{"type":"Point","coordinates":[149.370808,-36.618622]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14187,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655760","IGSN":"10.60494/afj2-1052","SAMPLENO":9655760,"SAMPLE_ID":"GB1","AGE_MA":414,"AGE_MA_UNCERTAINTY":5,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":25013,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU25013","STRAT_UNIT_NAME":"Glenbog Granodiorite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Glenbog Granodiorite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granodiorite","MODE_OF_OCCURRENCE":"pluton","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Kemp et al 2007 paraphrased: The Glenbog Granodiorite of the Glenbog Suite outcrops along the eastern edge of the Bega Batholith south of the Kadoona Dacite. It is a medium to coarse-grained mesocratic rock with large quartz crystals, cream plagioclase and abundant hornblende prisms, with interstitial to poikiliticorthoclase. Some hornblende grains enclose clinopyroxene relicts. The Kadoona Dacite and Glenbog Granodiorite are regarded as the type example of a consanguineous I-type volcano-plutonic association (Wyborn & Chappell 1986; Chappell et al. 1987).\"","SAMPLING_FEATURE_NAME":"GB1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917434","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-36.618622,"LONG_GDA94":149.370808,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73063","AGE_REF":"Kemp, A.I.S., Hawkesworth, C.J., Paterson, B.A., Foster, G.L., Kinny, P.D., Whitehouse, M.J., Maas, R., EIMF, 2008. Exploring the plutonic-volcanic link: a zircon U-Pb, Lu-Hf and O isotope study of paired volcanic and granitic units from southeastern Australia. Transactions of the Royal Society of Edinburgh: Earth Sciences, 97(4), 337-355.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1017/S0263593300001498","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14415","geometry":{"type":"Point","coordinates":[148.81927,-36.658992]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14415,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655761","IGSN":"10.60494/kqjf-rv29","SAMPLENO":9655761,"SAMPLE_ID":"7955-113","AGE_MA":434.8,"AGE_MA_UNCERTAINTY":5.4,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":0.04,"NUMBER_OF_ANALYSES":6,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: HP/Agilent 4500 series","LABORATORY_NAME":"Macquarie University","AGE_INTERPRETED_FROM_SOURCE":"crystallisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":1517,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU1517","STRAT_UNIT_NAME":"Berridale Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Berridale adamellite, Numbla Vale","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Belousova et al 2006 paraphrased: \"The Berridale Adamellite and Kosciusko Tonalite belong to the 700 km wide Paleozoic Lachlan Fold Belt (LFB) of Eastern Australia, which is characterized by a ubiquitous Ordovician flysch cut by granitoids of different geochemical character. Chappell & White (1974, 1992) introduced the terms ‘S’ and ‘I’, which was a major contribution to granite classification at the time. They considered that the composition of granites reflects their source regions and showed that there are two contrasting granitoid types in the Kosciusko and Berridale Batholiths: the S-types derived from the partial melting of metasedimentary rocks, and the I-types from igneous sources that had not been through surface weathering processes. Zircon grains from the Berridale adamellite form four distinct morphological types. Type 1 is typical of zircon populations formed in sub-alkaline and alkaline series granitoids of crustal-plus-mantle or mainly mantle origin, according to the genetic classification. They have a well-developed prism and pyramid forms (Pupin 1980 subtypes G1 and P1). Type 2 zircons show a predominance of prism forms and the presence of two pyramids, one weakly developed and the other well developed (Pupin 1980 subtypes S14 and S19). This morphological type, according to Pupin's scale, is characteristic of calc-alkaline granodiorites of hybrid (crustal and mantle) origin.\"","SAMPLING_FEATURE_NAME":"7955-113","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917364","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-36.658992,"LONG_GDA94":148.81927,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Chappell, B.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75816","AGE_REF":"Belousova, E.A., Griffin, W.L., O'Reilly, S.Y., 2006. Zircon Crystal Morphology, Trace Element Signatures and Hf Isotope Composition as a Tool for Petrogenetic Modelling: Examples From Eastern Australian Granitoids. Journal of Petrology, 47(2), 329–353.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1093/petrology/egi077","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14320","geometry":{"type":"Point","coordinates":[148.8336,-36.69934]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14320,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655762","IGSN":"10.60494/z079-jw11","SAMPLENO":9655762,"SAMPLE_ID":"BB164","AGE_MA":436.2,"AGE_MA_UNCERTAINTY":4.7,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":19,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"Finister Granodiorite crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Pooled age from 2 analytical sessions for the Finister pluton (sample BB164).","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":6655,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU6655","STRAT_UNIT_NAME":"Finister Granodiorite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Finister","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granodiorite","MODE_OF_OCCURRENCE":"pluton","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"I-type granite from the Berridale batholith. Ickert and Williams 2011 paraphrased: \"The dominant rock types in the Berridale–Kosciuszko region are granodiorite and granite, with subordinate tonalite. Gabbroic and dioritic rocks are rare and only occur in association with plutons of the Jindabyne Suite, or as small stocks in the metasedimentary screen between the Berridale and Kosciuszko Batholiths (Hine et al. 1978). Cross-cutting relationships constrain the relative ages of three pulses of magmatic activity. The earliest phase is represented by two, small volume I-type granodiorite plutons intruded to the south, the Finister and Merumbago plutons. The Finister pluton is cut by the I-type Buckleys Lake pluton and the S-type Numbla Vale pluton.\"","SAMPLING_FEATURE_NAME":"BB164","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917402","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-36.69934,"LONG_GDA94":148.8336,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Ickert, R.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"67060","AGE_REF":"Ickert, R.B., Williams, I.S., 2011. U-Pb zircon geochronology of Silurian-Devonian granites in southeastern Australia: implications for the timing of the Benambran Orogeny and the I-S dichotomy. Australian Journal of Earth Sciences, 58(5), 501-516.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099.2011.562922","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14222","geometry":{"type":"Point","coordinates":[148.875816,-33.058346]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14222,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655692","IGSN":"10.60494/4pfq-bz26","SAMPLENO":9655692,"SAMPLE_ID":"COH-8","AGE_MA":458.2,"AGE_MA_UNCERTAINTY":2.4,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.72,"NUMBER_OF_ANALYSES":18,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: Cameca IMS 1270 MC-ion microprobe","LABORATORY_NAME":"University of Edinburgh","AGE_INTERPRETED_FROM_SOURCE":"Copper Hill tonalite crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":68844,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU68844","STRAT_UNIT_NAME":"Copper Hill Suite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Copper Hill Intrusive Complex","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"tonalite","MODE_OF_OCCURRENCE":"intrusion","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Kemp et al 2020 paraphrased: \"The sample was collected from Copper Hill intrusive complex, in the northern part of the Molong Belt (see Blevin, 2002). It is a medium, even grained holocrystalline rock of tonalitic composition, with abundant greenish to pink plagioclase and hornblende, lesser quartz, and minor (~5%) interstitial pink K-feldspar. \"","SAMPLING_FEATURE_NAME":"COH-8","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917423","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-33.058346,"LONG_GDA94":148.875816,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73154","AGE_REF":"Kemp, A.I.S., Blevin, P.L., Norman, M.D., Edinburgh Ion Microprobe Facility, 2020. A SIMS U-Pb (zircon) and Re-Os (molybdenite) isotope study of the early Paleozoic Macquarie Arc, southeastern Australia: Implications for the tectono-magmatic evolution of the paleo-Pacific Gondwana margin. Gondwana Research, 82, 73-96.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.gr.2019.12.015","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14188","geometry":{"type":"Point","coordinates":[148.009351,-33.118294]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14188,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655693","IGSN":"10.60494/fc7s-1s09","SAMPLENO":9655693,"SAMPLE_ID":"GOO102","AGE_MA":477.4,"AGE_MA_UNCERTAINTY":1.5,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.11,"NUMBER_OF_ANALYSES":40,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: Cameca IMS 1270 MC-ion microprobe","LABORATORY_NAME":"University of Edinburgh","AGE_INTERPRETED_FROM_SOURCE":"crystallisation of an intrusion in Nelungaloo Volcanics","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"unnamed intrusion in Nelungaloo Volcanics","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate intrusive rock","LITHOLOGY":"monzodiorite","MODE_OF_OCCURRENCE":"intrusion","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Kemp et al 2020: Samples GOO102 and GOO103 were collected from the zoned, outcropping Nettlebecks Lane monzodiorite pluton that intrudes the Nelungaloo Volcanics to the west of Parkes; GOO102 is equivalent to sample 98-806 of Butera et al. (2001).\" Butera et al 2001 paraphrased: \"The sample consists of pink monzodiorite porphyry with phenocrysts of green, heavily altered plagioclase and turbid pink alkali feldspar (which also mantles plagioclase) set in a groundmass of graphically intergrown quartz and alkali feldspar, and blocky late magmatic quartz. Minor opaque minerals and acicular apatite are also present. The ferromagnesian minerals have been altered to chlorite. Secondary chlorite, carbonate, albite, amphibole, titanite and sericite are developed as alteration and infill.\"","SAMPLING_FEATURE_NAME":"GOO102","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917435","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-33.118294,"LONG_GDA94":148.009351,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73154","AGE_REF":"Kemp, A.I.S., Blevin, P.L., Norman, M.D., Edinburgh Ion Microprobe Facility, 2020. A SIMS U-Pb (zircon) and Re-Os (molybdenite) isotope study of the early Paleozoic Macquarie Arc, southeastern Australia: Implications for the tectono-magmatic evolution of the paleo-Pacific Gondwana margin. Gondwana Research, 82, 73-96.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.gr.2019.12.015","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14393","geometry":{"type":"Point","coordinates":[148.009356,-33.118745]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14393,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655694","IGSN":"10.60494/8j8z-t884","SAMPLENO":9655694,"SAMPLE_ID":"GOO103","AGE_MA":477.2,"AGE_MA_UNCERTAINTY":4.2,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":2,"NUMBER_OF_ANALYSES":9,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: Cameca IMS 1270 MC-ion microprobe","LABORATORY_NAME":"University of Edinburgh","AGE_INTERPRETED_FROM_SOURCE":"crystallisation of an intrusion in Nelungaloo Volcanics","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"unnamed intrusion in Nelungaloo Volcanics","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate intrusive rock","LITHOLOGY":"monzodiorite","MODE_OF_OCCURRENCE":"intrusion","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Kemp et al 2020: Samples GOO102 and GOO103 were collected from the zoned, outcropping Nettlebecks Lane monzodiorite pluton that intrudes the Nelungaloo Volcanics to the west of Parkes; GOO102 is equivalent to sample 98-806 of Butera et al. (2001).\" Butera et al 2001 paraphrased: \"The sample consists of pink monzodiorite porphyry with phenocrysts of green, heavily altered plagioclase and turbid pink alkali feldspar (which also mantles plagioclase) set in a groundmass of graphically intergrown quartz and alkali feldspar, and blocky late magmatic quartz. Minor opaque minerals and acicular apatite are also present. The ferromagnesian minerals have been altered to chlorite. Secondary chlorite, carbonate, albite, amphibole, titanite and sericite are developed as alteration and infill.\"","SAMPLING_FEATURE_NAME":"GOO103","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917436","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-33.118745,"LONG_GDA94":148.009356,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73154","AGE_REF":"Kemp, A.I.S., Blevin, P.L., Norman, M.D., Edinburgh Ion Microprobe Facility, 2020. A SIMS U-Pb (zircon) and Re-Os (molybdenite) isotope study of the early Paleozoic Macquarie Arc, southeastern Australia: Implications for the tectono-magmatic evolution of the paleo-Pacific Gondwana margin. Gondwana Research, 82, 73-96.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.gr.2019.12.015","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14221","geometry":{"type":"Point","coordinates":[146.19621,-33.236699]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14221,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655695","IGSN":"10.60494/pqxc-xw62","SAMPLENO":9655695,"SAMPLE_ID":"253046","AGE_MA":421.1,"AGE_MA_UNCERTAINTY":9.6,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.55,"NUMBER_OF_ANALYSES":9,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP I","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"crystallisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":18968,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU18968","STRAT_UNIT_NAME":"Ural Volcanics","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Sample 253046 - felsic volcanic rock","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid volcanic rock","LITHOLOGY":"dacite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"unknown","SAMPLE_DESC":"Recrystallised felsic volcanic rock. Fanning 1997 paraphrased: \"A fine-grained rock with irregular fabric. It appears to be a felsic volcanic rock of dacitic composition, though it has been subsequently modified by 'welding' or recrystallisation/devitrification possibly during burial. The zircons are dominantly stubby to elongate, euhedral, doubly terminated crystals. Many have opaque inclusions and / or internal cavities consistent with entrapment of gaseous phases during rapid crystallisation. They are determined to be of a magmatic origin.\"","SAMPLING_FEATURE_NAME":"253046","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917341","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-33.236699,"LONG_GDA94":146.19621,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Santa Fe Mining Aust. Pty Ltd.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75823","AGE_REF":"Fanning, C.M., 1997, Appendix 12: Lead isotope age dates; SHRIMP U-Pb zircon dating and Rb-Sr & Sm-Nd isotopic analyses Lake Cargelligo Project; IN: Santa Fe Mining Australia Pty Ltd (1997). First annual exploration report EL 5082, Lake Cargelligo area. Geological Survey of New South Wales Report GS, 1997/498.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/report/R00002919","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14261","geometry":{"type":"Point","coordinates":[146.2060906,-33.3611893]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14261,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655696","IGSN":"10.60494/x1fw-xw62","SAMPLENO":9655696,"SAMPLE_ID":"KB327","AGE_MA":421.9,"AGE_MA_UNCERTAINTY":3.8,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":2,"NUMBER_OF_ANALYSES":10,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: HP/Agilent 4500 series","LABORATORY_NAME":"University of Tasmania","AGE_INTERPRETED_FROM_SOURCE":"U-Pb zircon age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":18968,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU18968","STRAT_UNIT_NAME":"Ural Volcanics","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Ural Volcanics","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid volcanic rock","LITHOLOGY":"dacite","MODE_OF_OCCURRENCE":"sill","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Bull et al 2008 paraphrased: \"The Ural Volcanics consist primarily of felsic (rhyolite to dacite), coherent facies (i.e. lavas or sills) and associated felsic monomictic breccia facies. The presence of lavas, sills and syneruptive deposits indicates that both effusive and explosive eruptions occurred during deposition of this intrabasinal, below storm-wave-base, submarine volcanic succession. The sample is extracted from a felsic lava.","SAMPLING_FEATURE_NAME":"KB327","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917459","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-33.3611893,"LONG_GDA94":146.2060906,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"63891","AGE_REF":"Bull, K.F., Crawford, A.J., McPhie, J., Newberry, R.J., Meffre, S., 2008. Geochemistry, geochronology and tectonic implications of Late Silurian - Early Devonian volcanic successions, Central Lachlan Orogen, New South Wales. Australian Journal of Earth Sciences, 55(2), 235-264.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120090701689381","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14074","geometry":{"type":"Point","coordinates":[146.0958039,-33.3623219]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14074,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655697","IGSN":"10.60494/q03v-m021","SAMPLENO":9655697,"SAMPLE_ID":"8131rgc69.1","AGE_MA":413,"AGE_MA_UNCERTAINTY":5,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.1,"NUMBER_OF_ANALYSES":17,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"crystallisation age of the porphyry","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":18968,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU18968","STRAT_UNIT_NAME":"Ural Volcanics","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Ural Volcanics","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous rock","LITHOLOGY":"porphyry","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Columnar-jointed porphyritic rhyodacitic lava. Wilde 2001 paraphrased \"The sample is extracted from a columnar jointed porphyry, where the zircon crystals form two main populations. The majority are clear to pale pink in colour and elongated, with a length to width ratio of up to 6:1. Many of these crystals are broken but, when complete, they have well developed prism and pyramidal faces. There is a smaller population of clear to pink zircons with a more rounded, equidimensional shape. Some of these grains have poorly-developed faces, though some have numerous, well devloped, high-angle faces, reminiscient of metamorphic zircons.\"","SAMPLING_FEATURE_NAME":"8131rgc69.1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917368","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-33.3623219,"LONG_GDA94":146.0958039,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"74391; 75839","AGE_REF":"Colquhoun, G.P., Meakin, N.S., Cameron, R.G., 2005, Cargelligo 1:250 000 Geological Sheet SI/556, 3rd edition. Geological Survey of New South Wales Explanatory Notes, 291.; Wilde, S.A., 2001, SHRIMP U-Pb Dating of Four Volcanic Samples from the Cargelligo Area NSW. Geological Survey of New South Wales Report GS, 2001/531.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/product/451; https://search.geoscience.nsw.gov.au/report/R00041469","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14075","geometry":{"type":"Point","coordinates":[146.2485554,-33.3655231]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14075,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655698","IGSN":"10.60494/ks25-0e85","SAMPLENO":9655698,"SAMPLE_ID":"8131rgc11.1","AGE_MA":424,"AGE_MA_UNCERTAINTY":6,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.03,"NUMBER_OF_ANALYSES":11,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"age of crystallisation of the felsic volcanic rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":18968,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU18968","STRAT_UNIT_NAME":"Ural Volcanics","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Ural Volcanics","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous rock","LITHOLOGY":"porphyry","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Feldspar porphyry (?lava). Wilde 2001 paraphrased \"The sample is a feldspar porphyry where the zircon crystals are clear to pale brown in colour and generally poorly-formed with anhedral to subhedral forms. The clear crystals are less fractured, more elongated (length to width ratio of 3:1) and show little internal structure. The darker grains have abundant irregular cracks,l tend to be rather stubby to rounded in shape, are more turbid internally and locally contain quite sizable, brownish inclusions which may possibly be titanite.\"","SAMPLING_FEATURE_NAME":"8131rgc11.1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917366","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-33.3655231,"LONG_GDA94":146.2485554,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Meakin, N.S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"74391; 75839","AGE_REF":"Colquhoun, G.P., Meakin, N.S., Cameron, R.G., 2005, Cargelligo 1:250 000 Geological Sheet SI/556, 3rd edition. Geological Survey of New South Wales Explanatory Notes, 291.; Wilde, S.A., 2001, SHRIMP U-Pb Dating of Four Volcanic Samples from the Cargelligo Area NSW. Geological Survey of New South Wales Report GS, 2001/531.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/product/451; https://search.geoscience.nsw.gov.au/report/R00041469","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14136","geometry":{"type":"Point","coordinates":[146.945893,-32.567496]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14136,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655649","IGSN":"10.60494/x90n-cv34","SAMPLENO":9655649,"SAMPLE_ID":"CA01","AGE_MA":422.2,"AGE_MA_UNCERTAINTY":3.7,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":13,"CALCULATION_TYPE":"arithmetic mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"age indicates emplacement or eruption","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":11894,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU11894","STRAT_UNIT_NAME":"Mineral Hill Volcanics","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Mineral Hill Volcanics","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous rock","LITHOLOGY":"porphyry","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"unknown","SAMPLE_DESC":"Coarse grained I-Type, K-feldspar porphyry found from an outcrop 3 km west of Mineral Hill.","SAMPLING_FEATURE_NAME":"CA01","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917418","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.567496,"LONG_GDA94":146.945893,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Spandler, M.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75835","AGE_REF":"Spandler, M., 1998, The geology of the Mineral Hill Field, Central NSW: igneous evolution and Cu/Au mineralisation. Unpublished B.Sc. 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The intrusions have been emplaced into Ordovician, Silurian and early Devonian units.\"","SAMPLING_FEATURE_NAME":"MUJK0099","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917485","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.639537,"LONG_GDA94":149.531367,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Krynen, J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"23170; 73848","AGE_REF":"Fanning, C.M., 1997, SHRIMP zircon U/Pb age dates for samples from the Dubbo 1:250 000 sheet area. Geological Survey of New South Wales, Report, 1997/590.; Meakin, N.S., Morgan, E.J., 1999. Dubbo 1:250 000 Geological Sheet SI/55-4: Explanatory Notes. Geological Survey of New South Wales, Sydney, 1v, 504p.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/product/453; https://search.geoscience.nsw.gov.au/report/R00034286","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14103","geometry":{"type":"Point","coordinates":[147.370892,-32.682394]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14103,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655657","IGSN":"10.60494/2pvc-7v27","SAMPLENO":9655657,"SAMPLE_ID":"14168","AGE_MA":409.6,"AGE_MA_UNCERTAINTY":4,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.9,"NUMBER_OF_ANALYSES":8,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"mineralisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Cassiterite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7700x","LABORATORY_NAME":"University of Newcastle, Australia","AGE_INTERPRETED_FROM_SOURCE":"age determination of mineralisation event","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Results interpreted by C. Barry. 8 of 15 analyses used to calculate this age. 15 individual grains. (This age) is interpreted as the best representation of the timing of cassiterite crystallisation","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"Burra tin field, Fifield","MATERIAL_TYPE":"sediment","LITHOLOGY_GROUP":"sediment","LITHOLOGY":"alluvial sediment","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"unconsolidated surficial specimen","SAMPLE_DESC":"Barry 2015 paraphrased \"Alluvial cassiterite; fine to medium grained (~0.5-3 mm); anhedral to subhedral; sub-angular to sub-rounded; associated with a variety of magnetic and non-magnetic minerals","SAMPLING_FEATURE_NAME":"14168","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917332","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.682394,"LONG_GDA94":147.370892,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"published report, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"CalEnergy Resources (Australia) Ltd","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75815","AGE_REF":"Barry, C. M., 2015. U-Pb LA-ICP-MS geochronology of cassiterites from New South Wales and the Northern Territory, Australia. Geological Survey of New South Wales Report GS, 2016/0206, 34.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/report/R00052516","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14396","geometry":{"type":"Point","coordinates":[145.8024115,-32.6913989]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14396,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655658","IGSN":"10.60494/c8jq-ed60","SAMPLENO":9655658,"SAMPLE_ID":"PB_11 NYM_05","AGE_MA":422.8,"AGE_MA_UNCERTAINTY":2.7,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"not reported","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"timing of magmatic event","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":12454,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU12454","STRAT_UNIT_NAME":"Mount Allen Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Mount Allen Granite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":"intrusion","SAMPLE_TYPE":"unknown","SAMPLE_DESC":"Medium grained S-type granite","SAMPLING_FEATURE_NAME":"PB_11 NYM_05","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917549","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.6913989,"LONG_GDA94":145.8024115,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"70751","AGE_REF":"Downes, P.M., Blevin, P.L., Armstrong, R., Simpson, C.J., Sherwin, L., Tilley, D.B., Burton, G.R., 2016. Outcomes of the Nymagee mineral system study - an improved understanding of the timing of events and prospectivity of the central Lachlan Orogen. Geological Survey of New South Wales. Quarterly Notes, 147, 1-38.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/report/R00076225","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14364","geometry":{"type":"Point","coordinates":[151.007385,-32.695572]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14364,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655659","IGSN":"10.60494/zgtk-gx94","SAMPLENO":9655659,"SAMPLE_ID":"DMDCK II","AGE_MA":255.65,"AGE_MA_UNCERTAINTY":0.076,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":0.07,"NUMBER_OF_ANALYSES":3,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"isotope dilution: chemical abrasion and isotope dilution","ANALYTICAL_COLLECTION_SYSTEM":"TIMS: GV Isoprobe-T","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"age of crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Mount Hutton tuff","UNIT_NAME_SOURCE":"Mt. Hutton tuff in the Boolaroo sub-group","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous volcanic rock","LITHOLOGY":"vitric tuff","MODE_OF_OCCURRENCE":"bed","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Maravelis et al 2020 paraphrased \"Petrographic analysis of the tuffs studied suggests they are composed of vitric, crystal, and lithic fragments, but the lithic component occurs in a small number of samples. The crystals are represented principally by quartz, plagioclase and biotite. K-feldspar is rare and Ti-rich biotite occurs in most of the samples. The sample was collected from the bottom of the tuff bed, above the coal seam known as the Lower Pilot Seam.\"","SAMPLING_FEATURE_NAME":"BC-10","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917408","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Sydney Basin","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.695572,"LONG_GDA94":151.007385,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75829","AGE_REF":"Maravelis, A.G., Breckenridge, J., Ruming, K., Holmes, E., Amelin, Y., Collins, W.J., 2020, Re-assessing the Upper Permian Stratigraphic Succession of the Northern Sydney Basin, Australia, by CA-IDTIMS. Geosciences, 10(11).","AGE_PUBLICATION_LINKS":"https://doi.org/10.3390/geosciences10110474","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14317","geometry":{"type":"Point","coordinates":[146.1913446,-33.3947819]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14317,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655701","IGSN":"10.60494/ppnz-2g71","SAMPLENO":9655701,"SAMPLE_ID":"KB369","AGE_MA":419.6,"AGE_MA_UNCERTAINTY":4.6,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.5,"NUMBER_OF_ANALYSES":10,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: HP/Agilent 4500 series","LABORATORY_NAME":"University of Tasmania","AGE_INTERPRETED_FROM_SOURCE":"U-Pb zircon age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":18968,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU18968","STRAT_UNIT_NAME":"Ural Volcanics","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Ural Volcanics","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid volcanic rock","LITHOLOGY":"rhyolite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Bull et al 2008 paraphrased: \"The Ural Volcanics consist primarily of felsic (rhyolite to dacite), coherent facies (i.e. lavas or sills) and associated felsic monomictic breccia facies. The presence of lavas, sills and syneruptive deposits indicates that both effusive and explosive eruptions occurred during deposition of this intrabasinal, below storm-wave-base, submarine volcanic succession. The sample is extracted from a felsic lava.","SAMPLING_FEATURE_NAME":"KB369","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917460","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-33.3947819,"LONG_GDA94":146.1913446,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"63891","AGE_REF":"Bull, K.F., Crawford, A.J., McPhie, J., Newberry, R.J., Meffre, S., 2008. Geochemistry, geochronology and tectonic implications of Late Silurian - Early Devonian volcanic successions, Central Lachlan Orogen, New South Wales. Australian Journal of Earth Sciences, 55(2), 235-264.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120090701689381","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14271","geometry":{"type":"Point","coordinates":[149.157314,-33.52538]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14271,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655702","IGSN":"10.60494/2gpp-dv94","SAMPLENO":9655702,"SAMPLE_ID":"NH29","AGE_MA":430,"AGE_MA_UNCERTAINTY":5.4,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":13,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"minimum age of syn-mineralisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":"minimum age constraint for mineralisatio","AGE_REMARK_FROM_SOURCE":"Dyke clearly post-dates the skarn alteration and mineralisation, giving a minimum age constraint for mineralisation. Appears to be syn-mineralisation.","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"Mine Dyke Group","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":"dyke","SAMPLE_TYPE":"field site specimen","SAMPLE_DESC":"Kovac 2000 paraphrashed: \"Sample NH29 was sourced from a granitic dyke. It is unaltered and zircons are visible in thin sections. This indicates a high yield of zircons after mineral separation. Abundant euhedral zircons were recovered, ranging in size up to 100 um. A total of sixteen zircons were analysed for U-Th-Pb content for age determinations. Some of the crystals contain inherited cores. \"","SAMPLING_FEATURE_NAME":"NH29/48/43-2","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917534","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-33.52538,"LONG_GDA94":149.157314,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Kovacs, N.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73997","AGE_REF":"Kovacs, N.J., 2000, Magmatic and hydrothermal evolution of the Browns Creek Intrusive Complex and associated gold mineralisation [MSc. thesis]. Australian National University Press, Canberra.","AGE_PUBLICATION_LINKS":"https://doi.org/10.25911/5d78dbcc93f37","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14380","geometry":{"type":"Point","coordinates":[149.157314,-33.52538]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14380,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655703","IGSN":"10.60494/nvdw-6a51","SAMPLENO":9655703,"SAMPLE_ID":"NH43-2","AGE_MA":432.3,"AGE_MA_UNCERTAINTY":4.9,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":10,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"minimum age of syn-mineralisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":"minimum age constraint for mineralisatio","AGE_REMARK_FROM_SOURCE":"Dyke clearly crosscuts late-stage sheeted vein ore and would give a younger limit of mineralisation. Appears to be syn-mineralisation.","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"Mine Dyke Group","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":"dyke","SAMPLE_TYPE":"field site specimen","SAMPLE_DESC":"Kovac 2000 paraphrased: \" The sample is a alkali feldspar granite. The zircon crystals are consistently small and low in abundance. All crystals are euhedral with no inherent cores, indicating an igneous source. However, the internal structure ofthese zircons is unique. They display a form of growth zoning called sector zoning (or hourglass zoning), that is clearly visible under a transmitted light microscope. This occurs when foreign atoms (such as uranium and thorium) are trapped during crystal growth. These trapped atoms are visible as growth bands that reflect the shape of the crystal at that stage. It is believed that each face of a crystal prism is predetermined to adsorb differing elements. \"","SAMPLING_FEATURE_NAME":"NH29/48/43-2","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917534","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-33.52538,"LONG_GDA94":149.157314,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Kovacs, N.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73997","AGE_REF":"Kovacs, N.J., 2000, Magmatic and hydrothermal evolution of the Browns Creek Intrusive Complex and associated gold mineralisation [MSc. thesis]. Australian National University Press, Canberra.","AGE_PUBLICATION_LINKS":"https://doi.org/10.25911/5d78dbcc93f37","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14168","geometry":{"type":"Point","coordinates":[149.162809,-33.542409]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14168,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655704","IGSN":"10.60494/5k78-v253","SAMPLENO":9655704,"SAMPLE_ID":"MG5785","AGE_MA":434.4,"AGE_MA_UNCERTAINTY":5.5,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.3,"NUMBER_OF_ANALYSES":10,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP I","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"crystallisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":3588,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU3588","STRAT_UNIT_NAME":"Carcoar Granodiorite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Carcoar Granodiorite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granodiorite","MODE_OF_OCCURRENCE":"pluton","SAMPLE_TYPE":"unknown","SAMPLE_DESC":"Lennox et al 2005 paraphrased: \"Zircons from the sample show a wide range in size, from 60 to 300 um, and are variable in form. The grains range from euhedral clear varieties to more equidimensional, but facetted, squat forms and flat bladed and acicular crystals. Cathodoluminescence images show an array of different compositional zoning patterns from sector zoning (generally in the interiors) to oscillatory concentric zoning. The flat bladed crystals tend to have weak compositional zoning with the cathodoluminescence images showing broad zones of uniform composition","SAMPLING_FEATURE_NAME":"MG5785","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917478","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-33.542409,"LONG_GDA94":149.162809,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75828","AGE_REF":"Lennox, P.G., Trzebski, R., Armstrong, R., Siebel, W., 2005, Structural evolution and granite chronology of the central Molong Zone, Eastern Lachlan Fold Belt, Australia. Australian Journal of Earth Sciences, 52(1).","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120090500109102","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14184","geometry":{"type":"Point","coordinates":[149.805912,-33.546702]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14184,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655705","IGSN":"10.60494/5c4k-1p89","SAMPLENO":9655705,"SAMPLE_ID":"HB82","AGE_MA":330.7,"AGE_MA_UNCERTAINTY":2.4,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":1.38,"NUMBER_OF_ANALYSES":14,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Zircon rim. This was indistinguishable from the age of HB83 (331.6 +/- 2.0 Ma). Pooling the two mean ages gave a weighted mean age of 331.3 ± 1.5 Ma (n = 46) for the Tarana granite.","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":17834,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU17834","STRAT_UNIT_NAME":"Tarana Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Tarana monzogranite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"monzogranite","MODE_OF_OCCURRENCE":"pluton","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Jeon and Williams 2018 paraphrased: \"Tarana is the largest granite body of the LCG (Lachlan fold belt Carboniferous Granites), and was emplaced as a zoned pluton or series of plutons in sequence from west to east. A second sample of more mafic Tarana granite (HB82) is coarse-grained biotite-hornblende monzogranite containing pale pink K-feldspar phenocrysts (≤20 mm long). The Tarana monzogranite intruded a series of Late Ordovician, Silurian and Devonian volcanic and sedimentary rocks. The zircon occurred as medium sized (30-100 um diameter), prismatic grains with aspect ratios of 2-4 or more elongate grains with aspect ratios of over 5. Both types were mostly euhedral, pale honey coloured and clear with common inclusions. CL imaging showed that about 10% of the grains contained a core. Parallel zoning was common in the more elongate grains.\"","SAMPLING_FEATURE_NAME":"HB82","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917442","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-33.546702,"LONG_GDA94":149.805912,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jeon, H.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75826","AGE_REF":"Jeon, H., Williams, I.S., 2018. Trace inheritance—Clarifying the zircon O-Hf isotopic fingerprint of I-type granite sources: Implications for the restite model. Chemical Geology, 476, 456-468.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.chemgeo.2017.11.041","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14286","geometry":{"type":"Point","coordinates":[150.157438,-33.554436]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14286,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655706","IGSN":"10.60494/agqa-cb53","SAMPLENO":9655706,"SAMPLE_ID":"HB11","AGE_MA":327.9,"AGE_MA_UNCERTAINTY":2.2,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":0.63,"NUMBER_OF_ANALYSES":12,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Zircon rims.","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Lett Granite","UNIT_NAME_SOURCE":"Lett monzogranite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"monzogranite","MODE_OF_OCCURRENCE":"pluton","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Jeon and Williams 2018 paraphrased: \"Lett (sample HB11), the easternmost pluton of the Tarana Suite, is a medium-grained, pink K-feldspar megacryst-bearing biotite-hornblende monzogranite. Little of the contact between the monzogranite and country rock is exposed, and the eastern side of the pluton is overlain by Permian sedimentary rocks of the Sydney Basin. It is likely, however, that the granite at least in part intruded terrestrial sedimentary rocks of the late Devonian Lambie Group.The zircon occurred as fine to medium sized (30-100 um diameter), euhedral, pale honey coloured, clear but sometimes turbid and cracked grains with aspect ratios of 3-4 and sometimes over 6. Inclusions were not common. CL imaging showed coarse oscillatory zoning in most crystals, and parallel zoning in the acicular grains. A few grains (ca. 5%) had small angular cores.\"","SAMPLING_FEATURE_NAME":"HB11","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917441","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-33.554436,"LONG_GDA94":150.157438,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jeon, H.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75826","AGE_REF":"Jeon, H., Williams, I.S., 2018. Trace inheritance—Clarifying the zircon O-Hf isotopic fingerprint of I-type granite sources: Implications for the restite model. Chemical Geology, 476, 456-468.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.chemgeo.2017.11.041","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14164","geometry":{"type":"Point","coordinates":[146.273093,-33.561874]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14164,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655707","IGSN":"10.60494/5fq7-hk23","SAMPLENO":9655707,"SAMPLE_ID":"253047","AGE_MA":420.5,"AGE_MA_UNCERTAINTY":7.5,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.89,"NUMBER_OF_ANALYSES":11,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP I","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"crystallisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":18968,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU18968","STRAT_UNIT_NAME":"Ural Volcanics","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Sample 253047 - porphyritic monzonite (sub-volcanic)","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate intrusive rock","LITHOLOGY":"monzonite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"unknown","SAMPLE_DESC":"Porphyritic monzonite (sub-volcanic). Fanning 1997 paraphrased: \"Porphyritic rock with abundant phenocrysts of K-feldspar, quartz, plagioclase and hornblende. The groundmass is fine-grained and the rock is considered to be an intrusive monzonitic phase, syn to late in the magmatic history of this areas. The zircons are dominantly euhedral, doubly terminated crystals or fragments of such grains. Many are euhedrally zoned form centre to rim, some are structured in transmitted light and appear to have discrete central components. A few grains have cavities that are consistent with the entrapment of gaseous phases during rapid recrystallisation in a volcanic to sub-volcanic environment. Dominated by simple magmatic zircon with inherited central areas in may grains.\"","SAMPLING_FEATURE_NAME":"253047","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917342","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-33.561874,"LONG_GDA94":146.273093,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Santa Fe Mining Aust. Pty Ltd.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75823","AGE_REF":"Fanning, C.M., 1997, Appendix 12: Lead isotope age dates; SHRIMP U-Pb zircon dating and Rb-Sr & Sm-Nd isotopic analyses Lake Cargelligo Project; IN: Santa Fe Mining Australia Pty Ltd (1997). First annual exploration report EL 5082, Lake Cargelligo area. Geological Survey of New South Wales Report GS, 1997/498.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/report/R00002919","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14342","geometry":{"type":"Point","coordinates":[148.0359,-33.01792]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14342,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655686","IGSN":"10.60494/g6tz-j172","SAMPLENO":9655686,"SAMPLE_ID":"NP16TW077","AGE_MA":450.5,"AGE_MA_UNCERTAINTY":4.5,"AGE_CONFIDENCE_LEVEL":"1 standard deviation","AGE_MSWD":2.2,"NUMBER_OF_ANALYSES":14,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"238U/206Pb and 207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: unknown model","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: unknown model","LABORATORY_NAME":"University of Tasmania","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"Two-Thirty intrusive complex -KHB-QMP clast","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate intrusive rock","LITHOLOGY":"monzonite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"unknown","SAMPLE_DESC":"Wells et al 2021 paraphrased \"KHB-QMP clast: Equigranular to porphyritic; variably megacrystic; K-feldspar phenocrysts commonly with poikilitic inclusions. 70-80% plagioclase, 20-30% K-feldspar +/-5% hornblende phenocrysts with minor 2-3% biotite + magnetite +/- leucoxene; fine-grained to granular groundmass with rare euhedral quartz.\"","SAMPLING_FEATURE_NAME":"Two-Thirty prospect - D245","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917582","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-33.01792,"LONG_GDA94":148.0359,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73287","AGE_REF":"Wells, T.J., Cooke, D.R., Baker, M.J., Zhang, L., Meffre, S., Steadman, J., Norman, M.D., Hoye, J.L., 2021. Geology and geochronology of the Two-Thirty prospect, Northparkes district, NSW. Australian Journal of Earth Sciences, 68(5), 659-683.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099.2021.1861095","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14290","geometry":{"type":"Point","coordinates":[147.92876,-33.01873]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14290,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655687","IGSN":"10.60494/mfht-gb32","SAMPLENO":9655687,"SAMPLE_ID":"NP16TW053","AGE_MA":447.3,"AGE_MA_UNCERTAINTY":4.5,"AGE_CONFIDENCE_LEVEL":"1 standard deviation","AGE_MSWD":null,"NUMBER_OF_ANALYSES":31,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"238U/206Pb and 207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: unknown model","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: unknown model","LABORATORY_NAME":"University of Tasmania","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"Two-Thirty intrusive complex -Monozite porphyry","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate intrusive rock","LITHOLOGY":"monzonite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"unknown","SAMPLE_DESC":"Wells et al 2021 paraphrased \"Monzonite porphyry: Sparsely to moderately porphyritic withno K-feldspar megacrysts. Plagioclase and K-feldspar phyric with minor magnetite in a granular plagioclase + K-feldspar groundmass.","SAMPLING_FEATURE_NAME":"NP16TW053","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917535","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-33.01873,"LONG_GDA94":147.92876,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73287","AGE_REF":"Wells, T.J., Cooke, D.R., Baker, M.J., Zhang, L., Meffre, S., Steadman, J., Norman, M.D., Hoye, J.L., 2021. Geology and geochronology of the Two-Thirty prospect, Northparkes district, NSW. Australian Journal of Earth Sciences, 68(5), 659-683.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099.2021.1861095","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14189","geometry":{"type":"Point","coordinates":[147.92985,-33.01917]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14189,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655688","IGSN":"10.60494/hnz8-er45","SAMPLENO":9655688,"SAMPLE_ID":"NP16TW168","AGE_MA":448,"AGE_MA_UNCERTAINTY":4.5,"AGE_CONFIDENCE_LEVEL":"1 standard deviation","AGE_MSWD":1.6,"NUMBER_OF_ANALYSES":36,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"238U/206Pb and 207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: unknown model","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: unknown model","LABORATORY_NAME":"University of Tasmania","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"Two-Thirty intrusive complex -Two-Thirty porphyry","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate intrusive rock","LITHOLOGY":"monzonite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"unknown","SAMPLE_DESC":"Wells et al 2021 paraphrased \"Two-Thirty porphyry: Sparse to crystal-crowded porphyritictextures; subhedral K-feldspar rimseuhedral plagioclase and form. 70% K-feldspar 30% plagioclase, phenocrysts +/- 5% clinopyroxene + biotite + magnetite + hornblende +/- leucoxene after titanomagnetite; very fine-grained to aphanitic feldspar + quartz groundmass","SAMPLING_FEATURE_NAME":"NP16TW168","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917537","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-33.01917,"LONG_GDA94":147.92985,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73287","AGE_REF":"Wells, T.J., Cooke, D.R., Baker, M.J., Zhang, L., Meffre, S., Steadman, J., Norman, M.D., Hoye, J.L., 2021. Geology and geochronology of the Two-Thirty prospect, Northparkes district, NSW. Australian Journal of Earth Sciences, 68(5), 659-683.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099.2021.1861095","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14234","geometry":{"type":"Point","coordinates":[147.92944,-33.02108]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14234,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655689","IGSN":"10.60494/vx81-xz41","SAMPLENO":9655689,"SAMPLE_ID":"NP16TW133","AGE_MA":447.1,"AGE_MA_UNCERTAINTY":4.5,"AGE_CONFIDENCE_LEVEL":"1 standard deviation","AGE_MSWD":1.4,"NUMBER_OF_ANALYSES":22,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"238U/206Pb and 207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: unknown model","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: unknown model","LABORATORY_NAME":"University of Tasmania","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"Two-Thirty intrusive complex -Altered K-QMP","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate intrusive rock","LITHOLOGY":"monzonite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"unknown","SAMPLE_DESC":"Wells et al 2021 paraphrased \"Altered K-QMP: Variable from pale pink to dark red;sparsely K-feldspar phyric. 30-40% plagioclase and alkali feldspar phenocrysts with minor (<2%) magnetite + biotite +/- hornblende in anaphanitic to very fine-grained alkali-feldspar + quartz groundmass.\"","SAMPLING_FEATURE_NAME":"NP16TW133","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917536","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-33.02108,"LONG_GDA94":147.92944,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73287","AGE_REF":"Wells, T.J., Cooke, D.R., Baker, M.J., Zhang, L., Meffre, S., Steadman, J., Norman, M.D., Hoye, J.L., 2021. Geology and geochronology of the Two-Thirty prospect, Northparkes district, NSW. Australian Journal of Earth Sciences, 68(5), 659-683.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099.2021.1861095","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14348","geometry":{"type":"Point","coordinates":[146.2459193,-33.047667]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14348,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655690","IGSN":"10.60494/xtqf-tm37","SAMPLENO":9655690,"SAMPLE_ID":"PDNY 12.003","AGE_MA":412.2,"AGE_MA_UNCERTAINTY":2.6,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"not reported","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"timing of magmatic event","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":18968,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU18968","STRAT_UNIT_NAME":"Ural Volcanics","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Ural Volcanics (formerly Shepherds Hill Volcanics)","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous volcanic rock","LITHOLOGY":"igneous volcanic rock","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"unknown","SAMPLE_DESC":"Felsic A-type from Shepherds Hill quarry (Downes et al 2016)","SAMPLING_FEATURE_NAME":"PDNY 12.003","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917555","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-33.047667,"LONG_GDA94":146.2459193,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"published report, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"70751","AGE_REF":"Downes, P.M., Blevin, P.L., Armstrong, R., Simpson, C.J., Sherwin, L., Tilley, D.B., Burton, G.R., 2016. Outcomes of the Nymagee mineral system study - an improved understanding of the timing of events and prospectivity of the central Lachlan Orogen. Geological Survey of New South Wales. Quarterly Notes, 147, 1-38.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/report/R00076225","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14174","geometry":{"type":"Point","coordinates":[146.2471828,-33.049283]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14174,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655691","IGSN":"10.60494/a4ef-xn27","SAMPLENO":9655691,"SAMPLE_ID":"8131snm1.1","AGE_MA":410,"AGE_MA_UNCERTAINTY":8,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":6.31,"NUMBER_OF_ANALYSES":17,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"crystallisation age of the rhyodacite","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"The chi-square value of 6.31 indicates significant geological scatter about the mean.","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":18968,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU18968","STRAT_UNIT_NAME":"Ural Volcanics","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Ural Volcanics","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid volcanic rock","LITHOLOGY":"rhyodacite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Porphyritic rhyodacite (possibly a lava). Wilde 2001 paraphrased \"The sample is extracted from a porphyritic rhyodacite, where the zircon crystals are clear to pale pink in colour and form a uniform population of rather stubby laths, with a maximum length to width ratio of 2.5:1. The crystals are generally subhedral with well-developed prism faces, though only fifty percent of the grains show pyramidal terminations. Elongated, clear inclusions aligned parallel to the prism faces are quite common and appear to be apatite. There is no evidence that any of the zircons have cores.\"","SAMPLING_FEATURE_NAME":"8131snm1.1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917369","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-33.049283,"LONG_GDA94":146.2471828,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"74391; 75839","AGE_REF":"Colquhoun, G.P., Meakin, N.S., Cameron, R.G., 2005, Cargelligo 1:250 000 Geological Sheet SI/556, 3rd edition. Geological Survey of New South Wales Explanatory Notes, 291.; Wilde, S.A., 2001, SHRIMP U-Pb Dating of Four Volcanic Samples from the Cargelligo Area NSW. Geological Survey of New South Wales Report GS, 2001/531.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/product/451; https://search.geoscience.nsw.gov.au/report/R00041469","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14346","geometry":{"type":"Point","coordinates":[146.5740954,-32.8691822]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14346,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655674","IGSN":"10.60494/eynj-d686","SAMPLENO":9655674,"SAMPLE_ID":"PB_11 NYM_04","AGE_MA":426.3,"AGE_MA_UNCERTAINTY":3.3,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"not reported","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"timing of magmatic event","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":18839,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU18839","STRAT_UNIT_NAME":"Ungarie Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Derrida granite (now Ungarie Granite)","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":"pluton","SAMPLE_TYPE":"unknown","SAMPLE_DESC":"Medium grained S-type granite","SAMPLING_FEATURE_NAME":"PB_11 NYM_04","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917548","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.8691822,"LONG_GDA94":146.5740954,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"70751","AGE_REF":"Downes, P.M., Blevin, P.L., Armstrong, R., Simpson, C.J., Sherwin, L., Tilley, D.B., Burton, G.R., 2016. Outcomes of the Nymagee mineral system study - an improved understanding of the timing of events and prospectivity of the central Lachlan Orogen. Geological Survey of New South Wales. Quarterly Notes, 147, 1-38.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/report/R00076225","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14295","geometry":{"type":"Point","coordinates":[145.8559155,-32.9016206]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14295,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655675","IGSN":"10.60494/fv8n-sw68","SAMPLENO":9655675,"SAMPLE_ID":"PB-12-REG-01","AGE_MA":418.7,"AGE_MA_UNCERTAINTY":3.1,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"not reported","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"timing of magmatic event","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":23938,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU23938","STRAT_UNIT_NAME":"Regina Volcanics","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Regina Volcanics","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous volcanic rock","LITHOLOGY":"igneous volcanic rock","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"unknown","SAMPLE_DESC":"S-type from Great Central mine. Downes et al 2016: Mineralisation styles within the project area include massive to colloform and crustiform banded gold-base metal epithermal systems (Mineral Hill, Pipeline Ridge); carbonate-hosted silver-lead-zinc “Mississippi Valley”-type mineralisation (Manuka); structurally controlled low sulfide gold (‘orogenic gold’ - May Day); high sulfide gold–base metal ‘Cobar-type’ deposits (Hera, Nymagee, Mallee Bull); possible volcanic associated massive sulfide (VAMS)-type base metal systems (Great Central); and intrusion-related tin, tungsten and molybdenum mineralisation (e.g. Tallebung).","SAMPLING_FEATURE_NAME":"PB-12-REG-01","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917553","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.9016206,"LONG_GDA94":145.8559155,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"published report, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"70751","AGE_REF":"Downes, P.M., Blevin, P.L., Armstrong, R., Simpson, C.J., Sherwin, L., Tilley, D.B., Burton, G.R., 2016. Outcomes of the Nymagee mineral system study - an improved understanding of the timing of events and prospectivity of the central Lachlan Orogen. Geological Survey of New South Wales. Quarterly Notes, 147, 1-38.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/report/R00076225","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14417","geometry":{"type":"Point","coordinates":[151.791111,-32.923889]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14417,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655676","IGSN":"10.60494/vhsv-gg02","SAMPLENO":9655676,"SAMPLE_ID":"NBT - 1","AGE_MA":255.1,"AGE_MA_UNCERTAINTY":0.11,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":0.3,"NUMBER_OF_ANALYSES":5,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"isotope dilution: chemical abrasion and isotope dilution","ANALYTICAL_COLLECTION_SYSTEM":"TIMS: GV Isoprobe-T","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"age of crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"The sample NBT-1 recorded an age of crystallisation at 255.10 +/-  0.11 Ma, based on 5 of 7 grains as youngest most coherent group.","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":14198,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU14198","STRAT_UNIT_NAME":"Nobbys Tuff","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Nobbys Tuff","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous volcanic rock","LITHOLOGY":"vitric tuff","MODE_OF_OCCURRENCE":"bed","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Maravelis et al 2020 paraphrased \"Both samples NBT-1 & NBT-2 were collected from the same outcrop. NBT-1 collected from the basal part and NBT-2 from a higher stratigraphic level. Petrographic analysis suggests that the tuff is composed of vitric, crystal, and lithic fragments, but the lithic component occurs in a small number of samples. The crystals are represented principally by quartz, plagioclase and biotite. K-feldspar is rare and Ti-rich biotite occurs in most of the samples. The Nobby's Tuff outcrop is characterized by the continuous accumulation of tu deposits, with no intercalation of other deposits (coal and/or other siliciclastics).\"","SAMPLING_FEATURE_NAME":"BC-09","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917407","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Sydney Basin","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.923889,"LONG_GDA94":151.791111,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75829","AGE_REF":"Maravelis, A.G., Breckenridge, J., Ruming, K., Holmes, E., Amelin, Y., Collins, W.J., 2020, Re-assessing the Upper Permian Stratigraphic Succession of the Northern Sydney Basin, Australia, by CA-IDTIMS. Geosciences, 10(11).","AGE_PUBLICATION_LINKS":"https://doi.org/10.3390/geosciences10110474","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14256","geometry":{"type":"Point","coordinates":[151.791111,-32.923889]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14256,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655677","IGSN":"10.60494/rmb1-x925","SAMPLENO":9655677,"SAMPLE_ID":"NBT - 2","AGE_MA":255.19,"AGE_MA_UNCERTAINTY":0.153,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":0.3,"NUMBER_OF_ANALYSES":6,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"isotope dilution: chemical abrasion and isotope dilution","ANALYTICAL_COLLECTION_SYSTEM":"TIMS: GV Isoprobe-T","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"age of crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":"254.82 +/- 0.05 n = 2","AGE_REMARK_FROM_SOURCE":"The sample NBT-2 provides two possible interpretations: one younger age at 254.82 +/-  0.05 Ma (based on 2 of 8 grains as youngest group), and another slightly older at 255.19 +/- 0.15 Ma (based on 6 of 8 grains as second youngest group). The older age is the most plausible age of crystallisation for the sample.","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":14198,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU14198","STRAT_UNIT_NAME":"Nobbys Tuff","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Nobbys Tuff","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous volcanic rock","LITHOLOGY":"vitric tuff","MODE_OF_OCCURRENCE":"bed","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Maravelis et al 2020 paraphrased \"Both samples NBT-1 & NBT-2 were collected from the same outcrop. NBT-1 collected from the basal part and NBT-2 from a higher stratigraphic level. Petrographic analysis suggests that the tuff is composed of vitric, crystal, and lithic fragments, but the lithic component occurs in a small number of samples. The crystals are represented principally by quartz, plagioclase and biotite. K-feldspar is rare and Ti-rich biotite occurs in most of the samples. The Nobby's Tuff outcrop is characterized by the continuous accumulation of tu deposits, with no intercalation of other deposits (coal and/or other siliciclastics).\"","SAMPLING_FEATURE_NAME":"BC-08","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917406","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Sydney Basin","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.923889,"LONG_GDA94":151.791111,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75829","AGE_REF":"Maravelis, A.G., Breckenridge, J., Ruming, K., Holmes, E., Amelin, Y., Collins, W.J., 2020, Re-assessing the Upper Permian Stratigraphic Succession of the Northern Sydney Basin, Australia, by CA-IDTIMS. Geosciences, 10(11).","AGE_PUBLICATION_LINKS":"https://doi.org/10.3390/geosciences10110474","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14449","geometry":{"type":"Point","coordinates":[148.04743,-32.94176]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14449,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655678","IGSN":"10.60494/tzbh-hb42","SAMPLENO":9655678,"SAMPLE_ID":"98-800","AGE_MA":450.8,"AGE_MA_UNCERTAINTY":4.2,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":8,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"238U/206Pb and 207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"emplacement age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"206Pb/238U give age of 454.3 +/- 5.3 Ma. 207Pb/206Pb give age of 444.8 +/- 6.9 Ma. 2 estimates are pooled to give 450.8 +/- 4.2 Ma.","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"intrusion into basal Goonumbla Volcanics","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate intrusive rock","LITHOLOGY":"monzodiorite","MODE_OF_OCCURRENCE":"intrusion","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Butera et al 2001 paraphrased \"Small body of finegrained monzodiorite that intrudes an interval of limestone and volcanogenic sandstone in the basal part of the Goonumbla Volcanics. Contains phenocrysts of turbid, heavily altered, green plagioclase laths (generally <1.0 mm) that are mostly mantled by alkali feldspar. Former phenocrysts of pyroxene are replaced by quartz-chlorite-epidote. The groundmass consists of finer grained feldspar and rare quartz. Fe-Ti oxides, titanite and apatite crystals are prominent accessory phases. The rock is extensively altered to albite, chlorite, quartz, prehnite, epidote and carbonate. The (zircon) grains are small (~50 um diameter). All are fragments of simple, stubby, prismatic crystals. The fragmentation appears to be the result of corrosion rather than fracturing, few intact crystal faces and terminations are preserved. Most grains consist of a turbid centre surrounded by clear, colourless zones, some showing simple euhedral growth zoning. The cathodoluminescence of the grains in most cases is uniformly very weak. The little structure that can be discerned suggests broad prism-parallel zoning.\"","SAMPLING_FEATURE_NAME":"98-800/4/5/6/E26","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917396","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Cadia Porphyry Copper Gold Metallogenic Province","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.94176,"LONG_GDA94":148.04743,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Butera, K.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"23538","AGE_REF":"Butera, K.M., Williams, I.S., Blevin, P.L., Simpson, C.J., 2001. Zircon U-Pb dating of Early Palaeozoic monzonitic intrusives from the Goonumbla area, New South Wales. Australian Journal of Earth Sciences, 48(3), 457-464.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1046/j.1440-0952.2001.00870.x","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14110","geometry":{"type":"Point","coordinates":[148.04743,-32.94176]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14110,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655679","IGSN":"10.60494/4c4n-cy37","SAMPLENO":9655679,"SAMPLE_ID":"98-804","AGE_MA":438.9,"AGE_MA_UNCERTAINTY":4.7,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":10,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"crystallisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"dyke in the Goonumbla Volcanics","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate intrusive rock","LITHOLOGY":"monzonite","MODE_OF_OCCURRENCE":"dyke","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Butera et al 2001 paraphrased \"Porphyritic monzonite (probably dyke) in the Goonumbla Volcanics. The rock is strongly porphyritic, with phenocrysts of euhedral lathy green plagioclase, pink, strongly turbid alkali feldspar, greenblack clinopyroxene and altered biotite set in a groundmass dominated by alkali feldspar. Opaque minerals are closely associated with prominent stumpy apatite crystals. Secondary chlorite, carbonate and sericite are also present. The (zircon) grains have a wide range of size (70-200 um diameter) and shape (angular to strongly rounded), and are mostly clear and colourless, with only a few containing areas of discolouration and alteration. The rounded crystal surfaces in most cases are pitted, either by abrasion or corrosion. Cathodoluminescence imaging reveals a variety of structures in the grains, including some large non-luminescent centres (?cores) and some strongly luminescent grains with fine euhedral growth zoning. Most of the grains are very weakly luminescent, with weak or no zoning\"","SAMPLING_FEATURE_NAME":"98-800/4/5/6/E26","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917396","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Cadia Porphyry Copper Gold Metallogenic Province","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.94176,"LONG_GDA94":148.04743,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Butera, K.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"23538","AGE_REF":"Butera, K.M., Williams, I.S., Blevin, P.L., Simpson, C.J., 2001. Zircon U-Pb dating of Early Palaeozoic monzonitic intrusives from the Goonumbla area, New South Wales. Australian Journal of Earth Sciences, 48(3), 457-464.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1046/j.1440-0952.2001.00870.x","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14235","geometry":{"type":"Point","coordinates":[148.04743,-32.94176]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14235,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655680","IGSN":"10.60494/x2wc-1k39","SAMPLENO":9655680,"SAMPLE_ID":"98-806","AGE_MA":484.3,"AGE_MA_UNCERTAINTY":2.9,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":19,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"238U/206Pb and 207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"zircon crystallisation and emplacement age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"206Pb/238U give age of 487.5 +/- 4.0 Ma. 207Pb/206Pb give age of 480.8 +/- 4.2 Ma. 2 estimates are pooled to give 484.3 +/- 2.9 Ma.","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"intrusion into Nelungaloo Volcanics","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate intrusive rock","LITHOLOGY":"monzodiorite","MODE_OF_OCCURRENCE":"intrusion","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Butera et al 2001 paraphrased \"Small body of monzodiorite intruded into the Nelungaloo Volcanics. It consists of pink monzodiorite porphyry with phenocrysts of green, heavily altered plagioclase and turbid pink alkali feldspar (which also mantles plagioclase) set in a groundmass of graphically intergrown quartz and alkali feldspar, and blocky late magmatic quartz. Minor opaque minerals and acicular apatite are also present. The ferromagnesian minerals have been altered to chlorite. Secondary chlorite, carbonate, albite, amphibole, titanite and sericite are developed as alteration and infill. The (zircon) grains selected are of relatively uniform size (70-100 um diameter), mostly subhedral, angular fragments of elongate, prismatic crystals. Although prism faces are commonly preserved, intact terminations are rare. Most grains are mainly clear, colourless zircon, with patches of discolouration and turbidity. Inclusions are rare, except for elongate axial inclusions in most of the acicular crystals. The grains have such weak cathodoluminescence that internal growth structures can barely be distinguished\"","SAMPLING_FEATURE_NAME":"98-800/4/5/6/E26","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917396","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Cadia Porphyry Copper Gold Metallogenic Province","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.94176,"LONG_GDA94":148.04743,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Butera, K.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"23538","AGE_REF":"Butera, K.M., Williams, I.S., Blevin, P.L., Simpson, C.J., 2001. Zircon U-Pb dating of Early Palaeozoic monzonitic intrusives from the Goonumbla area, New South Wales. Australian Journal of Earth Sciences, 48(3), 457-464.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1046/j.1440-0952.2001.00870.x","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14215","geometry":{"type":"Point","coordinates":[148.04743,-32.94176]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14215,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655681","IGSN":"10.60494/8ar1-zc28","SAMPLENO":9655681,"SAMPLE_ID":"98-805","AGE_MA":439.1,"AGE_MA_UNCERTAINTY":4.5,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":12,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"emplacement age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"body intruded into Goonumbla Volcanics","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate intrusive rock","LITHOLOGY":"monzonite","MODE_OF_OCCURRENCE":"intrusion","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Butera et al 2001 paraphrased \"Monzonite body intruding the Goonumbla Volcanics. The sample consists of phenocrystal euhedral green plagioclase and brick-red alkali feldspar laths with subordinate greenblack clinopyroxene and altered biotite. Quartz and brickred alkali feldspar dominate the groundmass. Primary opaque minerals, and accessory apatite and zircon, are also present. Former interstitial cavities in the groundmass are lined by euhedral alkali feldspar and plagioclase and are infilled with quartz, chlorite, amphibole and epidote. The (zircon) grains are all angular, subhedral to anhedral fragments of small (<100 um diameter), clear, colourless crystals, few of which preserve terminations. Cathodoluminescence of most grains is very weak, but sufficient to show that the crystals have relatively simple internal growth structures, no structurally distinct cores and little or no growth zoning, common features of zircon from mafic igneous rocks.\"","SAMPLING_FEATURE_NAME":"98-800/4/5/6/E26","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917396","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Cadia Porphyry Copper Gold Metallogenic Province","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.94176,"LONG_GDA94":148.04743,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Butera, K.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"23538","AGE_REF":"Butera, K.M., Williams, I.S., Blevin, P.L., Simpson, C.J., 2001. Zircon U-Pb dating of Early Palaeozoic monzonitic intrusives from the Goonumbla area, New South Wales. Australian Journal of Earth Sciences, 48(3), 457-464.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1046/j.1440-0952.2001.00870.x","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14106","geometry":{"type":"Point","coordinates":[151.743889,-32.948611]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14106,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655682","IGSN":"10.60494/yx5c-kj84","SAMPLENO":9655682,"SAMPLE_ID":"DBN - 2","AGE_MA":255.08,"AGE_MA_UNCERTAINTY":0.094,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":0.22,"NUMBER_OF_ANALYSES":4,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"isotope dilution: chemical abrasion and isotope dilution","ANALYTICAL_COLLECTION_SYSTEM":"TIMS: GV Isoprobe-T","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"age of crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":107,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU107","STRAT_UNIT_NAME":"Adamstown Subgroup","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"\"unidentified\" tuff in the Adamstown sub-group","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous volcanic rock","LITHOLOGY":"vitric tuff","MODE_OF_OCCURRENCE":"bed","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Maravelis et al 2020 paraphrased \"Petrographic analysis of the tuffs studied suggests they are composed of vitric, crystal, and lithic fragments, but the lithic component occurs in a small number of samples. The crystals are represented principally by quartz, plagioclase and biotite. K-feldspar is rare and Ti-rich biotite occurs in most of the samples. The tuff beds for samples DBN-1 and DBN-2 are 2-6 m thick and separated by thick (3-5 m) coal deposits (Nobbys Coal Seam). DBN-2 was taken from the stratigraphically higer tuff bed above Nobbys Coal Seam.\"","SAMPLING_FEATURE_NAME":"BC-05","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917405","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Sydney Basin","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.948611,"LONG_GDA94":151.743889,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75829","AGE_REF":"Maravelis, A.G., Breckenridge, J., Ruming, K., Holmes, E., Amelin, Y., Collins, W.J., 2020, Re-assessing the Upper Permian Stratigraphic Succession of the Northern Sydney Basin, Australia, by CA-IDTIMS. Geosciences, 10(11).","AGE_PUBLICATION_LINKS":"https://doi.org/10.3390/geosciences10110474","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15890","geometry":{"type":"Point","coordinates":[139.36901063,-20.38605116]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15890,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11086462","IGSN":"10.60494/09ag-g616","SAMPLENO":11086462,"SAMPLE_ID":"DDH V39 304.1 m","AGE_MA":1510,"AGE_MA_UNCERTAINTY":15,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":null,"NUMBER_OF_ANALYSES":1,"CALCULATION_TYPE":"single analysis","GEOLOGICAL_EVENT":"mineralisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Brannerite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: LA-HR-ICPMS","LABORATORY_NAME":"Queen's University Facility for Isotope Research","AGE_INTERPRETED_FROM_SOURCE":"timing of formation of the deposit","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"mineralisation","LITHOLOGY":"unknown","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"DDH V39","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH1042017","BOREHOLE_TOP_DEPTH_M":304.1,"BOREHOLE_BASE_DEPTH_M":304.1,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-20.3860511575,"LONG_GDA94":139.3690106272,"ELEV_M_AHD":414,"ACCURACY_M":2000,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Polito, P.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"64834","AGE_REF":"Polito, P.A., Kyser, T.K., Stanley, C., 2009. The Proterozoic, albitite-hosted, Valhalla uranium deposit, Queensland, Australia: a description of the alteration assemblage associated with uranium mineralisation in diamond drill hole V39. Mineralium Deposita, 44(1), 11-40.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1007/s00126-007-0162-2","AGE_ENTRY_DATE":"2026-05-08","AGE_LAST_UPDATED":"2026-06-09"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15891","geometry":{"type":"Point","coordinates":[139.36901063,-20.38605116]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15891,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11086462","IGSN":"10.60494/09ag-g616","SAMPLENO":11086462,"SAMPLE_ID":"DDH V39 304.1 m","AGE_MA":1543,"AGE_MA_UNCERTAINTY":15,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":null,"NUMBER_OF_ANALYSES":1,"CALCULATION_TYPE":"single analysis","GEOLOGICAL_EVENT":"mineralisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Brannerite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: LA-HR-ICPMS","LABORATORY_NAME":"Queen's University Facility for Isotope Research","AGE_INTERPRETED_FROM_SOURCE":"timing of formation of the deposit","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"mineralisation","LITHOLOGY":"unknown","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"DDH V39","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH1042017","BOREHOLE_TOP_DEPTH_M":304.1,"BOREHOLE_BASE_DEPTH_M":304.1,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-20.3860511575,"LONG_GDA94":139.3690106272,"ELEV_M_AHD":414,"ACCURACY_M":2000,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Polito, P.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"64834","AGE_REF":"Polito, P.A., Kyser, T.K., Stanley, C., 2009. The Proterozoic, albitite-hosted, Valhalla uranium deposit, Queensland, Australia: a description of the alteration assemblage associated with uranium mineralisation in diamond drill hole V39. Mineralium Deposita, 44(1), 11-40.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1007/s00126-007-0162-2","AGE_ENTRY_DATE":"2026-05-08","AGE_LAST_UPDATED":"2026-06-09"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15892","geometry":{"type":"Point","coordinates":[139.36901063,-20.38605116]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15892,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11086462","IGSN":"10.60494/09ag-g616","SAMPLENO":11086462,"SAMPLE_ID":"DDH V39 304.1 m","AGE_MA":1564,"AGE_MA_UNCERTAINTY":27,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":9.3,"NUMBER_OF_ANALYSES":11,"CALCULATION_TYPE":"discordia","GEOLOGICAL_EVENT":"mineralisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/235U and 206Pb/238U","MINERAL":"Brannerite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: LA-HR-ICPMS","LABORATORY_NAME":"Queen's University Facility for Isotope Research","AGE_INTERPRETED_FROM_SOURCE":"timing of formation of the deposit","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"likely to be less accurate than the two oldest 207Pb/206Pb ages because 207Pb/206Pb ages in uranium minerals are more reliable than U-Pb ages","AGE_SOURCE":null,"PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"mineralisation","LITHOLOGY":"unknown","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"DDH V39","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH1042017","BOREHOLE_TOP_DEPTH_M":304.1,"BOREHOLE_BASE_DEPTH_M":304.1,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-20.3860511575,"LONG_GDA94":139.3690106272,"ELEV_M_AHD":414,"ACCURACY_M":2000,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Polito, P.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"64834","AGE_REF":"Polito, P.A., Kyser, T.K., Stanley, C., 2009. The Proterozoic, albitite-hosted, Valhalla uranium deposit, Queensland, Australia: a description of the alteration assemblage associated with uranium mineralisation in diamond drill hole V39. Mineralium Deposita, 44(1), 11-40.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1007/s00126-007-0162-2","AGE_ENTRY_DATE":"2026-05-08","AGE_LAST_UPDATED":"2026-06-09"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.4319","geometry":{"type":"Point","coordinates":[138.10977,-18.59686]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":4319,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU2676136","IGSN":"10273/AU2676136","SAMPLENO":2676136,"SAMPLE_ID":"2017338013_zrc","AGE_MA":1694,"AGE_MA_UNCERTAINTY":17,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.56,"NUMBER_OF_ANALYSES":7,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"GA6356","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Geoscience Australia","AGE_INTERPRETED_FROM_SOURCE":"Maximum depositional age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"Inserted from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 23 October 2019","PROJECT":"EFTF","STRATNO":16787,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU16787","STRAT_UNIT_NAME":"Shady Bore Quartzite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Shady Bore Quartzite","MATERIAL_TYPE":"unknown","LITHOLOGY_GROUP":null,"LITHOLOGY":null,"MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"2017331001","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS607049","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"South Nicholson Region","REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-18.59686,"LONG_GDA94":138.10977,"ELEV_M_AHD":192,"ACCURACY_M":999,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2017-06-03","SAMPLE_ORIGINATOR":"Lewis, C.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"72526","AGE_REF":"Anderson, J.R., Lewis, C.J., Jarrett, A.J.M., Carr, L.K., Henson, P.A., Carson, C.J., Southby, C., Munson, T.J., 2019. New SHRIMP U-Pb zircon ages from the South Nicholson Basin, Mount Isa Province and Georgina Basin, Northern Territory and Queensland: July 2017-June 2018. Geoscience Australia. Record, 2019/10, 101p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.11636/Record.2019.010","AGE_ENTRY_DATE":"2019-10-23","AGE_LAST_UPDATED":"2026-02-18"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.893","geometry":{"type":"Point","coordinates":[149.1974528,-26.2417722]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":893,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU2122736","IGSN":"10273/AU2122736","SAMPLENO":2122736,"SAMPLE_ID":"Meeleebee5/13","AGE_MA":256.4,"AGE_MA_UNCERTAINTY":1,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.33,"NUMBER_OF_ANALYSES":50,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":"GA6169","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Geoscience Australia","AGE_INTERPRETED_FROM_SOURCE":"Age of magmatic crystallization of (meta-)igneous rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"[Magee et al. 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The sample was extracted from a rhyolite sill within the Fiamme Breccia Facies Association atop an 'unnamed peak' south-east of Mt Wilson.\"","SAMPLING_FEATURE_NAME":"KB511B","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917463","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.7409669,"LONG_GDA94":145.8477333,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"63891","AGE_REF":"Bull, K.F., Crawford, A.J., McPhie, J., Newberry, R.J., Meffre, S., 2008. 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Downes et al 2016: Mineralisation styles within the project area include massive to colloform and crustiform banded gold-base metal epithermal systems (Mineral Hill, Pipeline Ridge); carbonate-hosted silver-lead-zinc “Mississippi Valley”-type mineralisation (Manuka); structurally controlled low sulfide gold (‘orogenic gold’ - May Day); high sulfide gold–base metal ‘Cobar-type’ deposits (Hera, Nymagee, Mallee Bull); possible volcanic associated massive sulfide (VAMS)-type base metal systems (Great Central); and intrusion-related tin, tungsten and molybdenum mineralisation (e.g. Tallebung).","SAMPLING_FEATURE_NAME":"Tallebung","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917569","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.7444821,"LONG_GDA94":146.5767711,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"70751","AGE_REF":"Downes, P.M., Blevin, P.L., Armstrong, R., Simpson, C.J., Sherwin, L., Tilley, D.B., Burton, G.R., 2016. Outcomes of the Nymagee mineral system study - an improved understanding of the timing of events and prospectivity of the central Lachlan Orogen. Geological Survey of New South Wales. Quarterly Notes, 147, 1-38.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/report/R00076225","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14360","geometry":{"type":"Point","coordinates":[146.580342,-32.752169]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14360,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655663","IGSN":"10.60494/gefv-qk30","SAMPLENO":9655663,"SAMPLE_ID":"14512","AGE_MA":420.3,"AGE_MA_UNCERTAINTY":9.8,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.3,"NUMBER_OF_ANALYSES":6,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"mineralisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Cassiterite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7700x","LABORATORY_NAME":"University of Newcastle, Australia","AGE_INTERPRETED_FROM_SOURCE":"age determination of mineralisation event","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Results interpreted by C. Barry. 6 of 20 analyses used to calculate this age. 18 individual grains, 2 duplicate analyses. (This age is) interpreted as the most reliable representation of the timing of cassiterite crystallisation","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"Kingston mine, Tallebung","MATERIAL_TYPE":"sediment","LITHOLOGY_GROUP":"sediment","LITHOLOGY":"alluvial sediment","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"unconsolidated surficial specimen","SAMPLE_DESC":"Barry 2015 paraphrased \"Alluvial cassiterite; medium to coarse grained (~1-7 mm); anhedral to subhedral; sub-angular; associated with quartz.","SAMPLING_FEATURE_NAME":"14512","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917333","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.752169,"LONG_GDA94":146.580342,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"CalEnergy Resources (Australia) Ltd","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75815","AGE_REF":"Barry, C. M., 2015. U-Pb LA-ICP-MS geochronology of cassiterites from New South Wales and the Northern Territory, Australia. Geological Survey of New South Wales Report GS, 2016/0206, 34.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/report/R00052516","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14085","geometry":{"type":"Point","coordinates":[148.91,-32.76]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14085,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655664","IGSN":"10.60494/mkgv-z083","SAMPLENO":9655664,"SAMPLE_ID":"16FV01-1","AGE_MA":442.7,"AGE_MA_UNCERTAINTY":3.2,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.71,"NUMBER_OF_ANALYSES":21,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave ESI 193 nm laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: ThermoELEMET XR","LABORATORY_NAME":"Chinese Academy of Geological Sciences","AGE_INTERPRETED_FROM_SOURCE":"maximum deposition age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":25904,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU25904","STRAT_UNIT_NAME":"Fairbridge Volcanics","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Fairbridge Volcanics","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous volcanic rock","LITHOLOGY":"volcaniclastic rock","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Zhang et al 2019 paraphrased \"The Fairbridge Volcanics are dominated by volcanic breccia, conglomerate and volcanic rocks, which are intercalated with finer volcaniclastic sandstones, volcanic sandstones and minor cherty siltstones. The lowest-preserved stratigraphic levels are dominated by poorly-sorted volcanic derived conglomerate. Most clasts are basaltic to andesitic, ranging in size 0.2-8 cm. Samples of this unit display dislocations in feldspars, undulose extinction in rare quartz and extensive sericitic alteration. In sample 16FV01-1,most of the extracted zircons are round, clear and small to medium in size (70-30 um by 100-50 um), and a few of them are yellow in colour with larger sizes. In CL images, well preserved entire zircons show concentric oscillatory zoning and a few of them show recrystallisation patches. The larger zircons are grain fragments. Four small grains show intense oscillatory zoning, some larger sizes of fragments show wider bands, and the remaining have no zoning features.\"","SAMPLING_FEATURE_NAME":"16FV01/1-1/Sa","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917337","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.76,"LONG_GDA94":148.91,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Zhang, Q.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"72263","AGE_REF":"Zhang, Q., Buckman, S., Bennett, V.C., Nutman, A., 2019. Inception and early evolution of the Ordovician Macquarie Arc of Eastern Gondwana margin: Zircon U-Pb-Hf evidence from the Molong Volcanic Belt, Lachlan Orogen. Lithos, 326-327, 513-528.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.lithos.2019.01.008","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14086","geometry":{"type":"Point","coordinates":[148.91,-32.76]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14086,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655665","IGSN":"10.60494/qdyx-1z33","SAMPLENO":9655665,"SAMPLE_ID":"16FV01Sa","AGE_MA":454.2,"AGE_MA_UNCERTAINTY":6.4,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1,"NUMBER_OF_ANALYSES":12,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"238U/206Pb and 207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP RG","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"maximum deposition age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":25904,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU25904","STRAT_UNIT_NAME":"Fairbridge Volcanics","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Fairbridge Volcanics","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous volcanic rock","LITHOLOGY":"volcaniclastic rock","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Zhang et al 2019 paraphrased \"The Fairbridge Volcanics are dominated by volcanic breccia, conglomerate and volcanic rocks, which are intercalated with finer volcaniclastic sandstones, volcanic sandstones and minor cherty siltstones. The lowest-preserved stratigraphic levels are dominated by poorly-sorted volcanic derived conglomerate. Most clasts are basaltic to andesitic, ranging in size 0.2-8 cm. Samples of this unit display dislocations in feldspars, undulose extinction in rare quartz and extensive sericitic alteration. In 16FV01Sa, 12 zircons were analysed, and most are small (50-70 um) and clean, with a few big dark rounded grains of 100 um.\"","SAMPLING_FEATURE_NAME":"16FV01/1-1/Sa","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917337","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.76,"LONG_GDA94":148.91,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Zhang, Q.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"72263","AGE_REF":"Zhang, Q., Buckman, S., Bennett, V.C., Nutman, A., 2019. Inception and early evolution of the Ordovician Macquarie Arc of Eastern Gondwana margin: Zircon U-Pb-Hf evidence from the Molong Volcanic Belt, Lachlan Orogen. Lithos, 326-327, 513-528.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.lithos.2019.01.008","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14144","geometry":{"type":"Point","coordinates":[148.91,-32.76]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14144,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655666","IGSN":"10.60494/qjbb-cq25","SAMPLENO":9655666,"SAMPLE_ID":"16FV01","AGE_MA":440.1,"AGE_MA_UNCERTAINTY":5.3,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":null,"NUMBER_OF_ANALYSES":10,"CALCULATION_TYPE":"mixture-modelled component","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"238U/206Pb and 207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP RG","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"maximum deposition age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"10 grains form a non-Gaussian distribu-tion in which two age components of 440.1 +/- 5.3 Ma and 469.4 +/-4.7 Ma (2sigma) were resolved by mixture modelling in Isoplot","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":25904,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU25904","STRAT_UNIT_NAME":"Fairbridge Volcanics","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Fairbridge Volcanics","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous volcanic rock","LITHOLOGY":"volcaniclastic rock","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Zhang et al 2019 paraphrased \"The Fairbridge Volcanics are dominated by volcanic breccia, conglomerate and volcanic rocks, which are intercalated with finer volcaniclastic sandstones, volcanic sandstones and minor cherty siltstones. The lowest-preserved stratigraphic levels are dominated by poorly-sorted volcanic derived conglomerate. Most clasts are basaltic to andesitic, ranging in size 0.2-8 cm. Samples of this unit display dislocations in feldspars, undulose extinction in rare quartz and extensive sericitic alteration. In sample 16FV01,most of the extracted zircons are round, clear and small to medium in size (70-30 um by 100-50 um), and a few of them are yellow in colour with larger sizes. In CL images, well preserved entire zircons show concentric oscillatory zoning and a few of them show recrystallisation patches. The larger zircons are grain fragments. Four small grains show intense oscillatory zoning, some larger sizes of fragments show wider bands, and the remaining have no zoning features.\"","SAMPLING_FEATURE_NAME":"16FV01/1-1/Sa","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917337","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.76,"LONG_GDA94":148.91,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Zhang, Q.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"72263","AGE_REF":"Zhang, Q., Buckman, S., Bennett, V.C., Nutman, A., 2019. Inception and early evolution of the Ordovician Macquarie Arc of Eastern Gondwana margin: Zircon U-Pb-Hf evidence from the Molong Volcanic Belt, Lachlan Orogen. Lithos, 326-327, 513-528.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.lithos.2019.01.008","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14442","geometry":{"type":"Point","coordinates":[147.443,-32.7626]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14442,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655667","IGSN":"10.60494/3fjs-na57","SAMPLENO":9655667,"SAMPLE_ID":"TT2","AGE_MA":439.6,"AGE_MA_UNCERTAINTY":8.5,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.1,"NUMBER_OF_ANALYSES":20,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation of the intrsion","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":18490,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU18490","STRAT_UNIT_NAME":"Tout Intrusive Complex","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Tout intrusion","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"basic intrusive rock","LITHOLOGY":"gabbro","MODE_OF_OCCURRENCE":"intrusion","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Hornblende gabbro. Webb paraphrased: \"(Sample) TT2 is a hornblende rich gabbroic rock collected from the eastern margin of the Tout intrusion. In hand specimen it is composed of large grey-green amphibole phenocrysts in a green aphanitic matrix. Phenocrysts dominate, comprising approximately 60-70% of the rock. In thin section very large hornblende grains comprise approximately 70% of the rock. The hornblende shows very embayed/altered edges. Some smaller hornblende grains are included by embayed clinopyroxene. The matrix is composed of clinopyroxene, plagioclase and quartz. Clinopyroxene is anhedral, with substantial alteration to the edges of all grains and within some of them. Twinning is present in clinopyroxene. Plagioclase is present primarily as laths in groundmass and is also altered along the edges. Pyroxene crystallised from the melt at a high temperature followed by plagioclase. Large, euhedral to anhedral hornblende grains followed, followed by minor quartz. The embayed edges of most pyroxene and hornblende grains are attributed to intense alteration.\"","SAMPLING_FEATURE_NAME":"TT2","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917580","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.7626,"LONG_GDA94":147.443,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Webb, K.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"74316","AGE_REF":"Webb, K., 2014, The age and tectonometallogenic setting of the Fifield “Alaskan-type” intrusive suite, Lachlan Orogen, NSW [BSc. Honours thesis]. University of Wollongong Press, Wollongong, 161 p.","AGE_PUBLICATION_LINKS":"https://ro.uow.edu.au/thsci/79/","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14078","geometry":{"type":"Point","coordinates":[149.713725,-32.762669]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14078,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655668","IGSN":"10.60494/zem9-v166","SAMPLENO":9655668,"SAMPLE_ID":"MUGC0928","AGE_MA":403,"AGE_MA_UNCERTAINTY":10,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":1.6,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":"Z2511","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"magmatic age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Preferred magmatic age minor older components at approx 450-490 Ma.","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":8696,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU8696","STRAT_UNIT_NAME":"Ingleburn Formation","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Ingleburn Formation","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid volcanic rock","LITHOLOGY":"dacite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Age sample is from a dacite lava. Meakin & Morgan 1999 paraphrased: \"The Ingleburn Formation, which outcrops in a fault-bounded syncline, was described by Wright (1966a) as commencing with a thick unit of highly sheared, quartz- and plagioclase-phyric dacite lava up to 180 m thick. The base of the volcanic rocks is not seen and the interval is sharply overlain by quartz-rich fossiliferous mudstone (the 'Tannabutta Siltstone Member' of Wright 1966a) which is massive or thinly bedded, with rare thin bands of quartz sandstone up to 15 cm thick. Several fossiliferous horizons occur in the shale, with brachiopods displaying ubiquitous disarticulation and some abrasion, suggesting minor current activity (Wright 1966a).\"","SAMPLING_FEATURE_NAME":"MUGC0928","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917482","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.762669,"LONG_GDA94":149.713725,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Colquhoun, G.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"23170; 73848","AGE_REF":"Fanning, C.M., 1997, SHRIMP zircon U/Pb age dates for samples from the Dubbo 1:250 000 sheet area. Geological Survey of New South Wales, Report, 1997/590.; Meakin, N.S., Morgan, E.J., 1999. Dubbo 1:250 000 Geological Sheet SI/55-4: Explanatory Notes. Geological Survey of New South Wales, Sydney, 1v, 504p.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/product/453; https://search.geoscience.nsw.gov.au/report/R00034286","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14402","geometry":{"type":"Point","coordinates":[148.91,-32.8]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14402,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655669","IGSN":"10.60494/4ppg-tj40","SAMPLENO":9655669,"SAMPLE_ID":"16MF02","AGE_MA":479.8,"AGE_MA_UNCERTAINTY":3.8,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.95,"NUMBER_OF_ANALYSES":10,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP RG","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"age of the volcanic component in the Mitchell Formation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":33382,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU33382","STRAT_UNIT_NAME":"Mitchell Formation","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Mitchell Formation","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous volcanic rock","LITHOLOGY":"volcaniclastic rock","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Zhang et al 2019 paraphrased \"The sample is from volcanic-derived conglomerate in the Mitchell Formation with clasts that are predominantly sub-angular to sub-rounded basalt and andesite (60-70%), feldspar fragments (10-15%), minor sandstone and chert fragments, with abundant calcite and sericite alteration. The Mitchell Formation is characterised by low yields of zircons from the volcaniclastic rock samples which reflects the predominantly basaltic nature of the source rocks. Their lack of significant rounding or weathering indicates proximal sources in a submarine environment (Morgan and Scott in Meakin et al., 1999).\"","SAMPLING_FEATURE_NAME":"16MF02","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917338","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.8,"LONG_GDA94":148.91,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Zhang, Q.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"72263","AGE_REF":"Zhang, Q., Buckman, S., Bennett, V.C., Nutman, A., 2019. Inception and early evolution of the Ordovician Macquarie Arc of Eastern Gondwana margin: Zircon U-Pb-Hf evidence from the Molong Volcanic Belt, Lachlan Orogen. 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Age Constraints: Appears to be hosted within both Carboniferous sedimentary rocks and intruded during the Permian (Intrusive and extrusive porphyries and porphyrites which are mapped as being younger.(as per Inverell 1:250 000)) Adjacent to Tertiary volcanics. The pluton is regarded as 'Early or Middle Triassic' on NSWGS maps. No previous (modern) instrumental dating has been undertaken.","SAMPLING_FEATURE_NAME":"PB-14-NEO-05","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS577869","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"New England Region","REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-29.5119692992,"LONG_GDA94":151.4684914436,"ELEV_M_AHD":758,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2014-06-03","SAMPLE_ORIGINATOR":"Waltenberg, K.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"70217","AGE_REF":"Waltenberg, K., Blevin, P.L., Bodorkos, S., Cronin, D.E., 2015. New SHRIMP U-Pb zircon ages from the New England Orogen, New South Wales: July 2014-June 2015. Geoscience Australia. Record, 2015/28, 91p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.11636/Record.2015.028","AGE_ENTRY_DATE":"2019-10-23","AGE_LAST_UPDATED":"2020-11-02"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15627","geometry":{"type":"Point","coordinates":[132.129841,-30.853702]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15627,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11083956","IGSN":"10.60494/62y7-3j48","SAMPLENO":11083956,"SAMPLE_ID":"R1124965","AGE_MA":1681,"AGE_MA_UNCERTAINTY":15,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.4,"NUMBER_OF_ANALYSES":17,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP I","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation, intrusive","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"DATA REPROCESSED: Teasdale (1997; PhD thesis) originally reported a SHRIMP age of 1672 +/- 17 Ma (SampleID WGC61) however, this age data has been recalculated for Fanning et al. (2007) publication, which supersedes this previous age.","AGE_SOURCE":"GSSA/Original publication","PROJECT":null,"STRATNO":35382,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU35382","STRAT_UNIT_NAME":"Tunkillia Suite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"granite, Lake Ifould","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"R1124965","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS1008662","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-30.853702,"LONG_GDA94":132.129841,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":"Pidinga Tank at Lake Ifould","SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Bodorkos, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"63078; 65376","AGE_REF":"Fanning, C.M., Reid, A.J., Teale, G.S., 2007. A geochronological framework for the Gawler Craton, South Australia. Geological Survey of South Australia Bulletin, 55, 258p.; Teasdale, J., 1997, Methods for understanding poorly exposed terranes: the interpretive geology and tectonothemal evolution of the western Gawler Craton. Unpublished Ph.D. thesis, University of Adelaide, 182p.","AGE_PUBLICATION_LINKS":"\nhttps://hdl.handle.net/2440/19235\n; https://pid.sarig.sa.gov.au/document/2018d037833","AGE_ENTRY_DATE":"2025-11-18","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.6440","geometry":{"type":"Point","coordinates":[115.90343385,-24.38626562]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":6440,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1695966","IGSN":"10273/AU1695966","SAMPLENO":1695966,"SAMPLE_ID":"183215","AGE_MA":1667,"AGE_MA_UNCERTAINTY":3,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"not captured","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"U/Pb not captured","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"age of igneous crystallization","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSWA","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"monzogranite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"coarse-grained porphyritic biotite monzogranite","SAMPLING_FEATURE_NAME":"SXSEUD6665","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS361017","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Gascoyne Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-24.3862656222,"LONG_GDA94":115.9034338525,"ELEV_M_AHD":308,"ACCURACY_M":50,"LOCATION_METHOD":"unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Geological Survey of Western Australia (GSWA)","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Geological Survey of Western Australia geochronology dataset","AGE_PUBLICATION_LINKS":"http://geodownloads.dmp.wa.gov.au/downloads/Geochron/pdfs/183215.1.pdf","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2021-01-14"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.16131","geometry":{"type":"Point","coordinates":[139.90497299,-21.66423997]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":16131,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11088621","IGSN":"10.60494/0gpp-j459","SAMPLENO":11088621,"SAMPLE_ID":"THG4","AGE_MA":1777,"AGE_MA_UNCERTAINTY":14,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":null,"NUMBER_OF_ANALYSES":1,"CALCULATION_TYPE":"single analysis","GEOLOGICAL_EVENT":"significance unknown","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: GeoLas 193nm ArF laser ablation system","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Varian 820 series","LABORATORY_NAME":"James Cook University","AGE_INTERPRETED_FROM_SOURCE":"granite emplacement","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Almost all zircon grains in the syn-D2 leucogranite sample THG4 are strongly recrystallised and altered with no internal zonation, and many have irregular, almost skeletal outlines suggesting partial resorption. Many of these texturally complex grains are completely metamict, and some grains preserve thin metamorphic overgrowths. Only relatively unaltered grains were sampled, and 34 analyses produced a single concordant age of 1777 ± 14 Ma, interpreted as the age of granite emplacement.","AGE_SOURCE":null,"PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Tick Hill granite","UNIT_NAME_SOURCE":"Tick Hill granite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"unknown","SAMPLE_DESC":"relatively undeformed leucogranite, characterized by weakly flattened quartz phenocrysts that are <5 mm in size, and partly recrystallized, slightly elongated K-feldspar grains that together with quartz define a weak foliation (Fig. 4f), which intensifies towards the margins of the intrusion","SAMPLING_FEATURE_NAME":"THG4","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS1083068","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-21.6642399744,"LONG_GDA94":139.9049729919,"ELEV_M_AHD":null,"ACCURACY_M":99,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Le, T.X.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"76529","AGE_REF":"Le, T.X., Dirks, P.H.G.M., Sanislav, I.V., Huizenga, J.M., Cocker, H.A., Manestar, G.N., 2021, Geochronological constraints on the geological history and gold mineralization in the Tick Hill region, Mt Isa Inlier. Precambrian Research, 366.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.precamres.2021.106422.","AGE_ENTRY_DATE":"2026-06-09","AGE_LAST_UPDATED":"2026-06-09"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15021","geometry":{"type":"Point","coordinates":[144.4253443,-17.07109297]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15021,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9402796","IGSN":"10.60494/b9h6-3k88","SAMPLENO":9402796,"SAMPLE_ID":"BB5500","AGE_MA":310.6,"AGE_MA_UNCERTAINTY":1.7,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.47,"NUMBER_OF_ANALYSES":26,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":"GA6514","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Geoscience Australia","AGE_INTERPRETED_FROM_SOURCE":"Magmatic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":22738,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU22738","STRAT_UNIT_NAME":"Redcap Dacite","INFORMAL_UNIT_NAME":"Redcap Dacite/3","UNIT_NAME_SOURCE":"Redcap Dacite (INFORMAL_UNIT_NAME updated in 2025 using Queensland Detailed Solid Geology WMS)","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous volcanic rock","LITHOLOGY":"ignimbrite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"The Redcap Dacite forms a triangular-shaped block (ca 18 km2), of rhyolitic to andesitic ignimbrites in the Mount Redcap area, ca 10–15 km north-northwest of Chillagoe and ca 5–8 km east of the Palmerville Fault. The formation has been subdivided into four unnamed, informal subunits (Crv/1–4; Mackenzie, 1993). The sample selected for SHRIMP analysis was collected from blocky rubble consisting of dark grey, very crystal-rich, lithics-poor dacitic ignimbrite of subunit Crv/3 exposed in the upper slope of a low hill ca 800 m west-southwest of Mount Redcap. \r\nThe formation is part of the Featherbed Volcanic Group (Mackenzie, 1993) and was assigned a late Carboniferous age (Mackenzie, 1993; Bultitude et al., 2002) based on its location outside the cauldron subsidence areas containing massive, early Permian ignimbrites, its lithological and geochemical similarities to late Carboniferous units of the Boomnoo Volcanic Subgroup to the southeast, and the fact that it is intruded by the Belgravia and Ruddygore granodiorites both of which were interpreted to have been emplaced in the late Carboniferous. The analysed sample is very crystal rich (>50% crystals) and lithics poor. Crystal fragments are common. The predominant crystals/crystal fragments are, in decreasing order of abundance, quartz, plagioclase, K-feldspar, biotite, and amphibole. Quartz forms the largest crystals, which are commonly embayed or partly resorbed. Amphibole grains are pleochroic from a distinctive dark bluish green to pale greenish yellow and are commonly intergrown with and partly replaced by biotite. Trace and accessory minerals include opaque oxide and zircon (as discrete grains and small inclusions surrounded by dark pleochroic haloes in biotite grains).\r\nThe subunit shows slight to moderate alteration. Biotite is commonly extensively replaced by aggregates of secondary biotite, and amphibole grains are replaced to varying degrees by mainly chlorite. The dacite also contains scarce small clasts of flattened pumice and fine-grained quartzite (meta-chert?).","SAMPLING_FEATURE_NAME":"BB5500","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS887362","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":null,"LAT_GDA94":-17.0710929721,"LONG_GDA94":144.4253443013,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Kositcin, N.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75850","AGE_REF":"Kositcin, N., Bultitude, R.J., 2024. New SHRIMP U-Pb ages from the Georgetown and Cairns regions, Queensland: NE Queensland Solid Geology Project, 2023-2024. Geoscience Australia. 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The age of the sampled sandstone interval is constrained by previous SHRIMP U–Pb zircon dating of tuffaceous rocks (Page et al 2000).","SAMPLING_FEATURE_NAME":"BD19TJM127","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS641159","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"McArthur Region","REGION_NAME_SOURCE":null,"STATE":"NT","COUNTRY":"AUS","LAT_GDA94":-16.7528305061,"LONG_GDA94":135.7410558284,"ELEV_M_AHD":null,"ACCURACY_M":null,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Kositcin, N.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"72523","AGE_REF":"Kositcin, N., Munson, T.J., 2020. Summary of results. Joint NTGS-GA geochronology project: Balbirini Dolostone, southern McArthur Basin, June 2019-September 2019. 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Permo-Carboniferous gold epoch of northeast Queensland. 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The foliation is broadly parallel to zones of coarse grained quartz, plagioclase and minor biotite, which are interpreted to be leucosomes within the granite formed by partial melting during metamorphism. There is a narrow (<1 cm) wide selvedge of coarse grained biotite at the margins of the leucosomes. Minor zircon, allanite and titanite are present within this metamorphosed granite.","SAMPLING_FEATURE_NAME":"CHDCU02","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH571016","BOREHOLE_TOP_DEPTH_M":381.15,"BOREHOLE_BASE_DEPTH_M":382.13,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-29.3034802251,"LONG_GDA94":135.1176828055,"ELEV_M_AHD":142,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2013-07-31","SAMPLE_ORIGINATOR":"Jagodzinski, E.A.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"71359","AGE_REF":"Reid, A., Jagodzinski, E.A., Hill, P., Maas, R., Jourdan, F., 2017. Project PGC03-12: Geochronology of the Cairn Hill deposit. IN Jagodzinski, E.A. and Reid, A.J. (eds) PACE Geochronology: Results of collaborative geochronology projects 2013-15. Geological Survey of South Australia. 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SHRIMP zircon dating results for various rocks from Victoria, 2006. 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Towards an understanding of the age and origin of mesothermal gold mineralisation in the Etheridge Goldfield, Georgetown region, north Queensland. 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It was drilled by Santos Ltd between September 2013 and September 2014. The primary objective of the well was to test for petroleum systems in the Heavitree Formation, a Neoproterozoic sandstone previously intersected by the Magee 1 well located 140 km to the northeast. Basement was intersected at a depth of 2140 m; drilling continued to a total depth of 2295.3 m. The overall basement intersection was described in the original well completion report as granodiorite and minor metasiltstone. Within the sampled interval , the geology is logged as off white to grey, quartz-feldspar-biotite granodiorite with occasional chlorite and trace disseminated pyrite (Adderley 2014). In the interpreted well completion report (Adderley 2015), the interval is redescribed as fractured granodiorite with trace to common white and pinkish feldspar. Biotite is common and increases with depth, and there are traces of chlorite and epidote. This granitoid sample unconformably underlies the Gillen Formation of the Bitter Springs Group as the target Heavitree Formation was absent in Mount Kitty 1. Sample KU20CSV001 consists of rock chips collected over the interval 2260–2295 m. It was selected to determine the age of crystalline basement for this part of the Amadeus Basin.","SAMPLING_FEATURE_NAME":"Mount Kitty 1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH575797","BOREHOLE_TOP_DEPTH_M":2260,"BOREHOLE_BASE_DEPTH_M":2295,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NT","COUNTRY":"AUS","LAT_GDA94":-25.5062222222,"LONG_GDA94":132.79675,"ELEV_M_AHD":477,"ACCURACY_M":100,"LOCATION_METHOD":"company supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Kositcin, N.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73338","AGE_REF":"Kositcin, N., Verdel, C., Edgoose, C.J., 2022. Summary of results. Joint NTGS-GA geochronology project: Crystalline basement intersected by the Mount Kitty 1 and Magee 1 drillholes south of Alice Springs, March 2021. 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There is no distinct contact observed between the mafic and felsic areas. Sulfide veining is observed. This core sample is texturally and compositionally variable, ranging from gabbro to diorite. Patches of coarse-grained poikolitic, khaki-brown hornblende enclosing orthopyroxene, clinopyroxene and plagioclase are common. Interstitial quartz is present in the more plagioclase dominant areas that contain little or no hornblende or biotite. Opaques are present throughout all textural domains. Zircon observed within hornblende. Some areas appear relatively fresh with minimal alteration, whilst other areas show chlorite replacing brown biotite and muscovite-sericite alteration of plagioclase.","SAMPLING_FEATURE_NAME":"NBH009","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH817058","BOREHOLE_TOP_DEPTH_M":255,"BOREHOLE_BASE_DEPTH_M":257,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.6943007917,"LONG_GDA94":141.4998212478,"ELEV_M_AHD":97,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75278","AGE_REF":"Perry, V.E., 2021, Geochemistry of the Loch Lilly-Kars volcanics and correlation along the Tasman Line, Eastern Australia. [Honours thesis, unpublished]. University of Newcastle, NSW.","AGE_PUBLICATION_LINKS":"Not Recorded","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-12-09"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14701","geometry":{"type":"Point","coordinates":[141.49982125,-32.69430079]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14701,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677767","IGSN":"10.60494/zz45-k315","SAMPLENO":9677767,"SAMPLE_ID":"VP012M","AGE_MA":490,"AGE_MA_UNCERTAINTY":1.55,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":0.98,"NUMBER_OF_ANALYSES":13,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation split-stream (LASS): COMPex 102 193 nm excimer UV laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: RESOlution-LR","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"emplacement age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"Kudgee, sampled from NBH009 @ 255-257 m","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"basic intrusive rock","LITHOLOGY":"gabbro","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Perry paraphrased: Medium-grained, dark grey to black with pods of coarser, more felsic material with a black and white spotted appearance. There is no distinct contact observed between the mafic and felsic areas. Sulfide veining is observed. This core sample is texturally and compositionally variable, ranging from gabbro to diorite. Patches of coarse-grained poikolitic, khaki-brown hornblende enclosing orthopyroxene, clinopyroxene and plagioclase are common. Interstitial quartz is present in the more plagioclase dominant areas that contain little or no hornblende or biotite. Opaques are present throughout all textural domains. Zircon observed within hornblende. Some areas appear relatively fresh with minimal alteration, whilst other areas show chlorite replacing brown biotite and muscovite-sericite alteration of plagioclase.","SAMPLING_FEATURE_NAME":"NBH009","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH817058","BOREHOLE_TOP_DEPTH_M":255,"BOREHOLE_BASE_DEPTH_M":257,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.6943007917,"LONG_GDA94":141.4998212478,"ELEV_M_AHD":97,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75278","AGE_REF":"Perry, V.E., 2021, Geochemistry of the Loch Lilly-Kars volcanics and correlation along the Tasman Line, Eastern Australia. [Honours thesis, unpublished]. University of Newcastle, NSW.","AGE_PUBLICATION_LINKS":"Not Recorded","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-12-09"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14664","geometry":{"type":"Point","coordinates":[141.49982125,-32.69430079]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14664,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677768","IGSN":"10.60494/zg5e-7s64","SAMPLENO":9677768,"SAMPLE_ID":"VP012","AGE_MA":490,"AGE_MA_UNCERTAINTY":1.06,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":null,"NUMBER_OF_ANALYSES":24,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation split-stream (LASS): COMPex 102 193 nm excimer UV laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: RESOlution-LR","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"emplacement age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"This is the combined age from samples VP012F & VP012M","AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"sampled from NBH009 @ 255-257 m","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"basic intrusive rock","LITHOLOGY":"gabbro","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Perry paraphrased: Medium-grained, dark grey to black with pods of coarser, more felsic material with a black and white spotted appearance. There is no distinct contact observed between the mafic and felsic areas. Sulfide veining is observed. This core sample is texturally and compositionally variable, ranging from gabbro to diorite. Patches of coarse-grained poikolitic, khaki-brown hornblende enclosing orthopyroxene, clinopyroxene and plagioclase are common. Interstitial quartz is present in the more plagioclase dominant areas that contain little or no hornblende or biotite. Opaques are present throughout all textural domains. Zircon observed within hornblende. Some areas appear relatively fresh with minimal alteration, whilst other areas show chlorite replacing brown biotite and muscovite-sericite alteration of plagioclase.","SAMPLING_FEATURE_NAME":"NBH009","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH817058","BOREHOLE_TOP_DEPTH_M":255,"BOREHOLE_BASE_DEPTH_M":257,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.6943007917,"LONG_GDA94":141.4998212478,"ELEV_M_AHD":97,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75278","AGE_REF":"Perry, V.E., 2021, Geochemistry of the Loch Lilly-Kars volcanics and correlation along the Tasman Line, Eastern Australia. [Honours thesis, unpublished]. University of Newcastle, NSW.","AGE_PUBLICATION_LINKS":"Not Recorded","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14705","geometry":{"type":"Point","coordinates":[142.81261,-30.259429]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14705,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677778","IGSN":"10.60494/ham2-xv45","SAMPLENO":9677778,"SAMPLE_ID":"YAN-001","AGE_MA":497,"AGE_MA_UNCERTAINTY":13,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":null,"NUMBER_OF_ANALYSES":1,"CALCULATION_TYPE":"single analysis","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7700","LABORATORY_NAME":"University of Newcastle, Australia","AGE_INTERPRETED_FROM_SOURCE":"maximum depositional age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"18 concordant analyses lie between ca 1300 and 500 Ma, with individual grains lie between 2756 and 497 Ma. This MDA is inferred from the single youngest grain.","AGE_SOURCE":"MinView/Original publication","PROJECT":null,"STRATNO":73418,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU73418","STRAT_UNIT_NAME":"Yancannia Formation","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Yancannia Formation","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metasedimentary rock","LITHOLOGY":"metasedimentary rock","MODE_OF_OCCURRENCE":"bed","SAMPLE_TYPE":"borehole specimen","SAMPLE_DESC":"Wong et al 2018 paraphrased: \"The Yancannia Formation consists of well-sorted, cleaved metamudstone with lesser amounts of metasiltstone and minor occurrences of metasandstone. Based on the fine-grained turbiditic sediments and the occurrence of slaty detritus, the interpreted depositional environment is an outer continental shelf setting, with a distal sediment source from the Delamerian Orogen. YAN-001 is a light-grey, well-sorted, quartz-rich, lowgrade metamorphosed siltstone. Zircon grains are typically subhedral, and range in length from 50 to 200 um, with estimated average aspect ratios of 3:1. Many grains are transparent, but light brown and light purple translucent grains also exist. Mineral inclusions are common. Cathodoluminescence imagery shows common poorly defined central domains and irregular zonation patterns, with less common well-defined concentric oscillatory zoning.\"","SAMPLING_FEATURE_NAME":"YCRCD02","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH599497","BOREHOLE_TOP_DEPTH_M":85.75,"BOREHOLE_BASE_DEPTH_M":87.6,"GEOLOGICAL_PROVINCE":"Thomson Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-30.259429,"LONG_GDA94":142.81261,"ELEV_M_AHD":112,"ACCURACY_M":1000,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"1905-06-28","SAMPLE_ORIGINATOR":"Compass Resources","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73177","AGE_REF":"Wong, S.C.T., Collins, W.J., Hack, A.C., Huang, H.-Q., 2018. Provenance and structure of the Yancannia Formation, southern Thomson Orogen: implications for the tectono-stratigraphic evolution of the Cambro-Ordovician western Tasmanides. Australian Journal of Earth Sciences, 65(7-8), 1097-1121.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099.2018.1464062","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14646","geometry":{"type":"Point","coordinates":[142.40045883,-31.25875271]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14646,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677779","IGSN":"10.60494/jb4p-vy89","SAMPLENO":9677779,"SAMPLE_ID":"Mount Arrowsmith Volcanics","AGE_MA":586,"AGE_MA_UNCERTAINTY":7,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"not reported","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"crystallisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":12467,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU12467","STRAT_UNIT_NAME":"Mount Arrowsmith Volcanics","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Mount Arrowsmith Volcanics","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid volcanic rock","LITHOLOGY":"rhyolite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Crawford et al. (1997): \"Zircons from a sample of alkali rhyolite from the alkaline volcanics (AMG66 633200E, 6540700N, Nuchea 1:100 000 sheet) dated by the U-Pb method on the SHRIMP microprobe, gave a date of 586 +/- 7 Ma. The zircons are slender, euhedral, typically volcanic shapes with minimal evidence of inheritance.\"","SAMPLING_FEATURE_NAME":"Mount Arrowsmith Volcanics","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS922784","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-31.2587527094,"LONG_GDA94":142.4004588257,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"1:100 000 map","LOCATION_DESC":"AMG66, 633200 mE, 6540700 mN; Nuchea 1:100 000 sheet","SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"22671","AGE_REF":"Crawford, A.J., Stevens, B.P.J., Fanning, M., 1997. Geochemistry and tectonic setting of some Neoproterozoic and Early Cambrian volcanics in western New South Wales. Australian Journal of Earth Sciences, 44(6), 831-852.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099708728358","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14688","geometry":{"type":"Point","coordinates":[142.40124311,-31.16517826]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14688,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677780","IGSN":"10.60494/9dyj-r004","SAMPLENO":9677780,"SAMPLE_ID":"Cymbric Vale Formation","AGE_MA":525,"AGE_MA_UNCERTAINTY":8,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"not reported","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP I","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"crystallisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Jon Claoue-Long (personal communication, 1992)","AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":27385,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU27385","STRAT_UNIT_NAME":"Cymbric Vale Formation","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Cymbric Vale Formation","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous volcanic rock","LITHOLOGY":"tuff","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Zhou & Whitford (1994): \"Recently, a U-Pb isotope analysis by SHRIMP on zircons from a felsic tuff sample in the Cymbric Vale Formation yielded an age of 525 +/- 8 Ma (J.C. Claoue-Long  1992, pers. comm.).\"","SAMPLING_FEATURE_NAME":"Cymbric Vale Formation","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS922785","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-31.1651782568,"LONG_GDA94":142.401243107,"ELEV_M_AHD":null,"ACCURACY_M":5000,"LOCATION_METHOD":"published report, method unknown","LOCATION_DESC":"Location approximated from positions of composite section described in Appendix of Kruse (1982; Paleontographica Abteilung A, 177(4-6), p129-212).","SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75259","AGE_REF":"Zhou, B., Whitford, D.J., 1994. Geochemistry of the Mt Wright Volcanics from the Wonominta Block, northwestern New South Wales. Australian Journal of Earth Sciences, 41(4), 331-340.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099408728142","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14084","geometry":{"type":"Point","coordinates":[147.7028883,-34.8332317]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14084,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655733","IGSN":"10.60494/t3pj-3a94","SAMPLENO":9655733,"SAMPLE_ID":"ERIVMAE1143.02","AGE_MA":425,"AGE_MA_UNCERTAINTY":2.6,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.31,"NUMBER_OF_ANALYSES":4,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: unknown model","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: unknown model","LABORATORY_NAME":"Macquarie University","AGE_INTERPRETED_FROM_SOURCE":"youngest significant peak not affected by Pb loss","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Age is the youngest significant peak. Concordia age 425.5 +/- 5.6 Ma. Age distribution and increasingly discordant analyses towards young ages suggest that this sample experienced Pb loss probably during a recent metamorphic event. The population least affected consists of analyses between 396-454 Ma (most significant age peak is ~ 425 Ma). More reliable estimate of the zircons age prior to the disturbance of the U-Pb system is given by an intercept of the Concordia. Results interpreted by R. Tilhac","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"medium-coarse grained siliciclastic rock","LITHOLOGY":"sandstone","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"unknown","SAMPLE_DESC":"Tilhac 2019 paraphrased \"The sample is a meta-sandstone, which has colourless to pale yellow stubby zircon crystals and broken fragments, equant to weakly elongated, euhedral to subhedral, with abundant inclusions. With a mix of different features: mostly oscillatory zoned, some sector zoning and diffuse features, a few core-rim features.","SAMPLING_FEATURE_NAME":"ERIVMAE1143.02","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917429","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-34.8332317,"LONG_GDA94":147.7028883,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75837","AGE_REF":"Tilhac, R., 2019, Zircon U-Pb dating: TerraneChron report to the Geological Survey of New South Wales. Geological Survey of New South Wales Report GS, 2019/0446.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/report/R00034654","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.13803","geometry":{"type":"Point","coordinates":[142.31397575,-10.60780486]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":13803,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU2678820","IGSN":"10273/AU2678820","SAMPLENO":2678820,"SAMPLE_ID":"QFG8800A","AGE_MA":344.4,"AGE_MA_UNCERTAINTY":1.7,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.03,"NUMBER_OF_ANALYSES":32,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":"GA6380","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Geoscience Australia","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":36370,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU36370","STRAT_UNIT_NAME":"Horn Island Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"The sample of Horn Island Granite was collected at the Alice Queen Limited exploration camp on Horn Island, Torres Strait from exploration drillhole 17NGD026 (145.8-149.3 m), drilled by Alice Queen Limited in 2017 on behalf of its subsidiary company, Kauraru Gold Pty Ltd (Hell, 2017). This drillhole intersected gold mineralisation of the Pioneer Reef on the western side of the Horn Island open cut gold mine. The heavily altered porphyritic (micro-) granite is a red to olive green, hornblende-biotite granite with sub-microscopic hematite-dusted K-feldspar phenocrysts (orange, 3 to 18 mm, 20-30%), heavily altered plagioclase phenocrysts (light green to olive, 0.5 to 4 mm, 5-10%) and quartz phenocrysts (light grey, 0.5 to 8 mm), biotite (dark green to black, chlorite-altered, 0.3 to 2 mm) and some altered hornblende (dark green, 1-2 mm). Notably the phenocrysts are significantly larger than the microcrystalline granitic matrix, which consists of very fine-grained quartzo-feldspathic intergrowths, with all feldspar and quartz grains exhibiting anhedral shapes. The sample also shows common thin quartz veins throughout.","SAMPLING_FEATURE_NAME":"17NGD026","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH625740","BOREHOLE_TOP_DEPTH_M":145.8,"BOREHOLE_BASE_DEPTH_M":149.3,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-10.6078048573,"LONG_GDA94":142.3139757485,"ELEV_M_AHD":39,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Geological Survey of Queensland (GSQ)","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75068","AGE_REF":"Cross, A.J., von Gnielinski, F.E., Lisitsin, V., Dhnaram, C., 2023. Summary of results. Joint GSQ-GA Geochronology Project: Horn Island, Torres Strait, 2016-2017. Geoscience Australia. 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Age 431.2+/- 3.7Ma.","SAMPLING_FEATURE_NAME":"DD95EHK1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH866062","BOREHOLE_TOP_DEPTH_M":112.1,"BOREHOLE_BASE_DEPTH_M":112.2,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.428569,"LONG_GDA94":141.603759,"ELEV_M_AHD":123,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75257","AGE_REF":"Baatar, B., Parra-Avila, L.A., Fiorentini, M.L., Polito, P., Crawford, A.J., 2020. Porphyry Cu fertility of the Loch Lilly-Kars Belt, western New South Wales, Australia. Australian Journal of Earth Sciences, 67(1), 75-87.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099.2019.1637937","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14682","geometry":{"type":"Point","coordinates":[141.603759,-32.428569]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14682,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677739","IGSN":"10.60494/9nam-e871","SAMPLENO":9677739,"SAMPLE_ID":"AUR101955","AGE_MA":431.2,"AGE_MA_UNCERTAINTY":3.7,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.63,"NUMBER_OF_ANALYSES":13,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"University of Tasmania","AGE_INTERPRETED_FROM_SOURCE":"emplacement age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"95% confidence as 2sigma","AGE_SOURCE":"MinView/Original publication","PROJECT":null,"STRATNO":7460,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU7460","STRAT_UNIT_NAME":"Gnalta Group","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"EHK1, 112.1-112.2 m","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate intrusive rock","LITHOLOGY":"diorite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Baatar et al 2020 paraphrased \"Dark greyish to dark brownish grey, fine-medium grained, weakly altered by chlorite after biotite and hornblende after clinopyroxene. Plagioclase and augite are the dominant primary minerals and Fe-Ti oxides are also common. Zircons from the microdiorite (AUR101955) are predominantly colourless to light brown, generally euhedral to elongate and subrounded, and range from 50 to 60 um in width and 20 to 90 um in length. They display resorption features as well as irregular patterns and fractures that overprint oscillatory zoning. Polito et al 2015. Petrography: EHK1 112.1-112.2m: A medium-grained, holocrystalline augite biotite monzodiorite with ~1-2modal% interstitial quartz. Brown biotite (~5-8modal%) and granular pale green augite is common (~10modal%), the latter mainly overgrown and partly to totally replaced by mid-green hornblende. Plagioclase is largely fresh. Only weakly magnetic despite common small FeTi oxides usually associated with biotite. Age 431.2+/- 3.7Ma.","SAMPLING_FEATURE_NAME":"DD95EHK1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH866062","BOREHOLE_TOP_DEPTH_M":112.1,"BOREHOLE_BASE_DEPTH_M":112.2,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.428569,"LONG_GDA94":141.603759,"ELEV_M_AHD":123,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75258","AGE_REF":"Polito, P., 2015, Second annual exploration report on EL8199 - Loch Lilly Project, covering period 6 November 2014 to 5 November 2015. Geological Survey of New South Wales Report GS, 2016/0059.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/report/RE0007943","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-12-09"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14663","geometry":{"type":"Point","coordinates":[141.603759,-32.428569]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14663,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677740","IGSN":"10.60494/9y1x-qb02","SAMPLENO":9677740,"SAMPLE_ID":"VP001","AGE_MA":424,"AGE_MA_UNCERTAINTY":1.23,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":1.09,"NUMBER_OF_ANALYSES":17,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation split-stream (LASS): COMPex 102 193 nm excimer UV laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: RESOlution-LR","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"emplacement age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"sampled from EHK1 @ 112-113 m","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate intrusive rock","LITHOLOGY":"diorite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Perry paraphrased: Medium-grained, dark grey to black in colour with a slight porphyritic texture. Black, sub-rounded phenocrysts (3 mm) within finer groundmass of shiny black and grey/white grains. Similar to sample VP002, however finer-grained and less porphyritic. Plagioclase and clinopyroxene phenocrysts are dominant, ranging in grainsize from 0.5 to 2 mm and 0.5 to 1 mm respectively. Plagioclase shows strong core to rim zoning and appears largely fresh with minimal alteration. Uralisation of clinopyroxene to amphibole-dominated assemblages is common, mainly to green hornblende and in some cases a mix of secondary amphiboles. Brown biotite and interstital quartz also present. Zircon observed in biotite and opaques are common throughout.","SAMPLING_FEATURE_NAME":"DD95EHK1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH866062","BOREHOLE_TOP_DEPTH_M":112,"BOREHOLE_BASE_DEPTH_M":113,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.428569,"LONG_GDA94":141.603759,"ELEV_M_AHD":123,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75278","AGE_REF":"Perry, V.E., 2021, Geochemistry of the Loch Lilly-Kars volcanics and correlation along the Tasman Line, Eastern Australia. [Honours thesis, unpublished]. University of Newcastle, NSW.","AGE_PUBLICATION_LINKS":"Not Recorded","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14674","geometry":{"type":"Point","coordinates":[141.46355,-32.549413]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14674,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677742","IGSN":"10.60494/2rch-j597","SAMPLENO":9677742,"SAMPLE_ID":"VP002","AGE_MA":423,"AGE_MA_UNCERTAINTY":1.51,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":0.92,"NUMBER_OF_ANALYSES":10,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation split-stream (LASS): COMPex 102 193 nm excimer UV laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: RESOlution-LR","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"emplacement age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"sampled from EHK2 @ 175-177 m","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate intrusive rock","LITHOLOGY":"diorite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Perry paraphrased: Medium to coarse grained diorite, medium/dark grey to black in colour with a \"salt and pepper\" appearance and porphyritic texture. Coarse (2 to 5 mm), black, subangular to sub-rounded hornblende or pyroxene grains and coarse (3 to 4 mm) clear, lath shaped plagioclase grains within a finer groundmass of shiny, black and cream-white sub-rounded grains. Some phenocrysts appear to have been in infilled/replaced with sulphides, leaving behind a coarse (approx. 4 mm) dark gold coloured centre within thin black halo, possibly magnetite. Sulphide veining also present and radial mesh of cream-white fibrous grains, possibly secondary alteration. Lighter coloured areas surrounding veins appear pink-orange in colour, possibly fluid alteration. Large enclave (4 cm) of more mafic material. Clinopyroxene occurs as phenocrysts, displaying twinning and commonly overgrown by hornblende and biotite. Plagioclase occurs as interstitial clusters of fine, lathshaped, interlocking grains approximately 0.5 to 1 mm in length, as well as coarser grains approximately 2.5 to 3 mm. Plagioclase shows zoning and is altered, and mymekite is also present along some grain boundaries. Alteration phases include sericite in plagioclase and uralisation of clinopyroxene as well as minor titanite and calcite. Mafic enclave displays distinct change in grainsize to a finer matrix of plagioclase peppered with opaques, fine hornblende and biotite grains (<0.5 mm).","SAMPLING_FEATURE_NAME":"DD95EHK2","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH866064","BOREHOLE_TOP_DEPTH_M":175,"BOREHOLE_BASE_DEPTH_M":177,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.549413,"LONG_GDA94":141.46355,"ELEV_M_AHD":999,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75278","AGE_REF":"Perry, V.E., 2021, Geochemistry of the Loch Lilly-Kars volcanics and correlation along the Tasman Line, Eastern Australia. [Honours thesis, unpublished]. University of Newcastle, NSW.","AGE_PUBLICATION_LINKS":"Not Recorded","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14660","geometry":{"type":"Point","coordinates":[141.46355,-32.549413]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14660,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677743","IGSN":"10.60494/sfwm-xc86","SAMPLENO":9677743,"SAMPLE_ID":"AUR101956","AGE_MA":416,"AGE_MA_UNCERTAINTY":12,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.2,"NUMBER_OF_ANALYSES":4,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"University of Tasmania","AGE_INTERPRETED_FROM_SOURCE":"emplacement age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"95% confidence as tsigma*sqrt(MSWD)","AGE_SOURCE":"MinView/Original publication","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"EHK2, 179.8-179.9 m","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate intrusive rock","LITHOLOGY":"monzodiorite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Polito et al 2015. Petrography: EHK2 179.8-179.9m: A more porphyritic version of the preceding rock (medium-grained, holocrystalline augite biotite monzodiorite with ~1-2modal% interstitial quartz) with 1-5mm-sized phenocrysts of zoned plagioclase and augite in a medium-grained plagioclase - augite- green hornblende (often overgrowing augite) - brown biotite - FeTi oxide groundmass. Almost no alteration but weakly magnetic. Age 416.0+/-12Ma.","SAMPLING_FEATURE_NAME":"DD95EHK2","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH866064","BOREHOLE_TOP_DEPTH_M":179.8,"BOREHOLE_BASE_DEPTH_M":179.9,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.549413,"LONG_GDA94":141.46355,"ELEV_M_AHD":999,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Andrews, E.C.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75258","AGE_REF":"Polito, P., 2015, Second annual exploration report on EL8199 - Loch Lilly Project, covering period 6 November 2014 to 5 November 2015. Geological Survey of New South Wales Report GS, 2016/0059.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/report/RE0007943","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-12-09"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14667","geometry":{"type":"Point","coordinates":[141.693742,-32.358824]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14667,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677744","IGSN":"10.60494/xdsa-2k04","SAMPLENO":9677744,"SAMPLE_ID":"VP003","AGE_MA":426.6,"AGE_MA_UNCERTAINTY":2.3,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":2.1,"NUMBER_OF_ANALYSES":40,"CALCULATION_TYPE":"anchored discordia","GEOLOGICAL_EVENT":"deformation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Titanite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Thermo Scientific iCAP-RQ","LABORATORY_NAME":"James Cook University","AGE_INTERPRETED_FROM_SOURCE":"deformation or burial metamorphic events","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"All titanite samples in this analysis contained common lead, therefore the data was discordant and required common lead correction before plotting. Ages are Pb anchored model-1 discordia intercept ages.","AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"sampled from EHK3 @ 144-145 d","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate volcanic rock","LITHOLOGY":"andesite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Perry paraphrased: Fine to medium grained, light to dark grey with porphyritic texture and a coarse (3 cm) black, glassy enclave of more mafic material. Black, sub-rounded to angular shaped phenocrysts range in grainsize from 2 to 5 mm. White/cream coloured phenocrysts from 2 to 3 mm are also present and appear more tabular to blocky in shape. Fine grained, light grey groundmass with finer black grains (>1 mm), and finer material surrounding margin of the enclave. Thin section - Euhedral, lath-shaped plagioclase phenocrysts range in grainsize, mainly 1 to 3.5 mm, and are strongly altered and zoned. Clinopyroxene phenocrysts have been almost entirely replaced by brown hornblende (0.5 to 1.5 mm) and altered to chlorite and calcite. Fine-grained groundmass consisting of mostly plagioclase and opaques.","SAMPLING_FEATURE_NAME":"DD95EHK3","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH866065","BOREHOLE_TOP_DEPTH_M":144,"BOREHOLE_BASE_DEPTH_M":145,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.358824,"LONG_GDA94":141.693742,"ELEV_M_AHD":115,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75278","AGE_REF":"Perry, V.E., 2021, Geochemistry of the Loch Lilly-Kars volcanics and correlation along the Tasman Line, Eastern Australia. [Honours thesis, unpublished]. University of Newcastle, NSW.","AGE_PUBLICATION_LINKS":"Not Recorded","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14668","geometry":{"type":"Point","coordinates":[141.693742,-32.358824]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14668,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677745","IGSN":"10.60494/h3gd-5m13","SAMPLENO":9677745,"SAMPLE_ID":"VP004","AGE_MA":422.7,"AGE_MA_UNCERTAINTY":2.4,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":0.82,"NUMBER_OF_ANALYSES":40,"CALCULATION_TYPE":"anchored discordia","GEOLOGICAL_EVENT":"deformation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Titanite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Thermo Scientific iCAP-RQ","LABORATORY_NAME":"James Cook University","AGE_INTERPRETED_FROM_SOURCE":"deformation or burial metamorphic events","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"All titanite samples in this analysis contained common lead, therefore the data was discordant and required common lead correction before plotting. Ages are Pb anchored model-1 discordia intercept ages.","AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"sampled from EHK3 @ 150-152 d","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"basic intrusive rock","LITHOLOGY":"gabbro","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Perry paraphrased: This rock is dark grey to black and mostly fine-grained. Slightly coarser black grains (1 to 2 mm) stand out from the finer-grained groundmass. Sulfide veining and pyrite common. Larger veins (3 mm width) appear green in colour, whereas thin veins (<1mm width) are more cream to white. Thin section - Primary mafic phases include clinopyroxene, plagioclase and opaques. Clinopyroxene phenocrysts range in grainsize from 0.5 to 1.5 mm and are overgrown by secondary amphibole along the edges of grains. Some clinopyroxene grains show strong core to rim zoning. Plagioclase is strongly altered and secondary, mix-layered clays are present within plagioclase grains, a common feature in low grade metamorphic rocks. The turquoise-blue secondary amphibole is also common with secondary biotite aggregates. The presence of secondary amphiboles and fine-grained secondary biotite indicates this fine-grained gabbro has experienced lower amphibolite facies.","SAMPLING_FEATURE_NAME":"DD95EHK3","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH866065","BOREHOLE_TOP_DEPTH_M":150,"BOREHOLE_BASE_DEPTH_M":152,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.358824,"LONG_GDA94":141.693742,"ELEV_M_AHD":115,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75278","AGE_REF":"Perry, V.E., 2021, Geochemistry of the Loch Lilly-Kars volcanics and correlation along the Tasman Line, Eastern Australia. [Honours thesis, unpublished]. University of Newcastle, NSW.","AGE_PUBLICATION_LINKS":"Not Recorded","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14679","geometry":{"type":"Point","coordinates":[141.693742,-32.358824]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14679,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677746","IGSN":"10.60494/0xgz-h285","SAMPLENO":9677746,"SAMPLE_ID":"AUR101958","AGE_MA":410.5,"AGE_MA_UNCERTAINTY":8.5,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.6,"NUMBER_OF_ANALYSES":14,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Titanite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"University of Tasmania","AGE_INTERPRETED_FROM_SOURCE":"emplacement age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"95% confidence as tsigma*sqrt(MSWD). N = 14, comprising 13 titanite analysesand 1 zircon analysis.","AGE_SOURCE":"MinView/Original publication","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"EHK3 144.6 - 144.7m","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate volcanic rock","LITHOLOGY":"andesite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Polito et al 2015. Petrography: EHK3 144.6-144.7m: Peperitic contact between a plagioclase+hornblende+biotite+FeTi oxide-phyric andesitic porphyry and a volcaniclastic sandstone-siltstone. Plagioclase is largely fresh but hornblende phenocrysts replaced by brown biotite and chlorite, and common brown biotite phenocrysts partly chloritized. Mainly fine-grained detrital quartz common in the volcaniclastic sediment. Age 410.5+/-8.5Ma.","SAMPLING_FEATURE_NAME":"DD95EHK3","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH866065","BOREHOLE_TOP_DEPTH_M":144.6,"BOREHOLE_BASE_DEPTH_M":144.7,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.358824,"LONG_GDA94":141.693742,"ELEV_M_AHD":115,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Andrews, E.C.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75258","AGE_REF":"Polito, P., 2015, Second annual exploration report on EL8199 - Loch Lilly Project, covering period 6 November 2014 to 5 November 2015. Geological Survey of New South Wales Report GS, 2016/0059.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/report/RE0007943","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14665","geometry":{"type":"Point","coordinates":[145.788093,-31.459027]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14665,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677781","IGSN":"10.60494/g87j-hp82","SAMPLENO":9677781,"SAMPLE_ID":"Alley 1","AGE_MA":500,"AGE_MA_UNCERTAINTY":7,"AGE_CONFIDENCE_LEVEL":"1 standard deviation","AGE_MSWD":null,"NUMBER_OF_ANALYSES":1,"CALCULATION_TYPE":"single analysis","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"Macquarie University","AGE_INTERPRETED_FROM_SOURCE":"maximum depositional age (sedimentary)","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Interpreted age from GSNSW MinView. Mainly 500-600 Ma and 700-3000 Ma. Three young grains of 500, 502 and 503 Ma have discordances <5% and are thus inferred to be real ages. Sample contains no young zircons that point to Early Devonian stratigraphic ages.","AGE_SOURCE":"MinView/Original publication","PROJECT":null,"STRATNO":26341,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU26341","STRAT_UNIT_NAME":"Alley Sandstone Member","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Alley Sandstone Member","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"medium-coarse grained siliciclastic rock","LITHOLOGY":"sandstone","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Glen et al 2010 paraphrased: \"Medium-grained sandstone from part of the biggest sandstone bed in an inlet channel to the New Cobar Reservoir and is described in Glen (1994). It is constrained in age by the brachiopod Howellela jaqueti, inferred to be Pragian in age during the mapping program but now regarded as Lochkovian (Early Devonian) in age (Pogson & Glen 2008, based on Sherwin 1995).\"","SAMPLING_FEATURE_NAME":"Alley 1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS922786","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-31.459027,"LONG_GDA94":145.788093,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":"Collected from the Cobar 1:100 000 sheet (8035) from GR 384858 6518889","SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Saeed, A.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"69002; 68823; 73264","AGE_REF":"Glen, R.A., Saeed, A., Hegarty, R., Percival, I.G., Bodorkos, S., Griffin, W.L., 2010. Preliminary zircon data and tectonic framework for the Thomson Orogen, northwestern NSW. Geological Survey of New South Wales, Report, GS, 2010/0379, 26pp + map.; Glen, R.A., Belousova, E.A., Griffin, W.L., 2016. Different styles of modern and ancient non-collisional orogens and implications for crustal growth: a Gondwanaland perspective. Canadian Journal of Earth Sciences, 53, 1372-1415.; Glen, R.A., Korsch, R.J., Hegarty, R., Saeed, A., Djomani, Y.P., Costelloe, R.D., Belousova, E.A., 2013. Geodynamic significance of the boundary between the Thomson Orogen and the Lachlan Orogen, northwestern New South Wales and implications for Tasmanide tectonics. Australian Journal of Earth Sciences, 60(3), 371-412.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/report/R00036358; https://doi.org/10.1080/08120099.2013.782899; https://doi.org/10.1139/cjes-2015-0229","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14669","geometry":{"type":"Point","coordinates":[148.69423707,-33.82639954]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14669,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677782","IGSN":"10.60494/ekjp-1644","SAMPLENO":9677782,"SAMPLE_ID":"COWRA","AGE_MA":425.4,"AGE_MA_UNCERTAINTY":4.7,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.35,"NUMBER_OF_ANALYSES":4,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"Macquarie University","AGE_INTERPRETED_FROM_SOURCE":"magmatic age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Four youngest concordant grains. This age overlaps with the 432.2 +/- 3.4 Ma magmatic age of its inferred extrusive equivalent, the Canowindra Volcanics (Black, 2006).","AGE_SOURCE":"MinView/Original publication","PROJECT":null,"STRATNO":4811,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU4811","STRAT_UNIT_NAME":"Cowra Granodiorite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Cowra Granodiorite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granodiorite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Glen et al 2016 paraprashed: \"The sample is a mafic S-type Cowra Granodiorite rich in microgranitoid enclaves for which White et al. (1991) inferred a restitic origin, but for which Waight et al. (2001) inferred formation by mingling of mafic magmas with a host felsic magma.\"","SAMPLING_FEATURE_NAME":"COWRA","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS922787","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-33.8263995394,"LONG_GDA94":148.6942370704,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"published report, method unknown","LOCATION_DESC":"Cowra lookout","SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Quinn, C.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73264","AGE_REF":"Glen, R.A., Belousova, E.A., Griffin, W.L., 2016. Different styles of modern and ancient non-collisional orogens and implications for crustal growth: a Gondwanaland perspective. Canadian Journal of Earth Sciences, 53, 1372-1415.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1139/cjes-2015-0229","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14671","geometry":{"type":"Point","coordinates":[141.603635,-30.161889]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14671,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677783","IGSN":"10.60494/rsf0-xp80","SAMPLENO":9677783,"SAMPLE_ID":"606 Yandaminta","AGE_MA":495,"AGE_MA_UNCERTAINTY":5,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.78,"NUMBER_OF_ANALYSES":5,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"Macquarie University","AGE_INTERPRETED_FROM_SOURCE":"mean of 5 youngest grains","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication","PROJECT":null,"STRATNO":20812,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU20812","STRAT_UNIT_NAME":"Yandaminta Quartzite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Yandaminta Quartzite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metasedimentary siliciclastic rock","LITHOLOGY":"quartzite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Glen et al 2017 paraphrased: \"The Yandaminta Quartzite 606(5) is the basal unit of the Imbilla Tank Group, west of Mt Arrowsmith and near the northern end of the Koonenberry Belt (Figure 1a, Greenfield et al., 2010). It is generally a massive homogeneous quartzite, with local bedding and cross bedding. At its northern margin, the quartzite grades into conglomerate, with rare shale in the middle to upper parts. Carbonate nodules contain a conodont fauna of upper Lower Ordovician (Bendigonian) age (Percival et al., (2011).\"","SAMPLING_FEATURE_NAME":"606 Yandaminta","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS922788","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-30.161889,"LONG_GDA94":141.603635,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Saeed, A.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75256","AGE_REF":"Glen, R.A., Fitzsimons, I.C.W., Griffin, W.L., Saeed, A., 2017. East Antarctic sources of extensive Lower-Middle Ordovician turbidites in the Lachlan Orogen, southern Tasmanides, eastern Australia. Australian Journal of Earth Sciences, 64(2), 143-224.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099.2017.1273256","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14661","geometry":{"type":"Point","coordinates":[144.232393,-36.812625]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14661,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677784","IGSN":"10.60494/86ss-jv88","SAMPLENO":9677784,"SAMPLE_ID":"BEN 5","AGE_MA":490,"AGE_MA_UNCERTAINTY":4.9,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.87,"NUMBER_OF_ANALYSES":4,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"Macquarie University","AGE_INTERPRETED_FROM_SOURCE":"mean age from four youngest","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication","PROJECT":null,"STRATNO":36202,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU36202","STRAT_UNIT_NAME":"Castlemaine Group","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Ben5 Castlemaine Group","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"medium-coarse grained siliciclastic rock","LITHOLOGY":"sandstone","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Glen et al 2017 paraphrased: \"Ben 5 is a sandstone adjacent to laminated shales with Bendigonian-Chewtonian graptolites adjacent to a railcut\"","SAMPLING_FEATURE_NAME":"BEN 5","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS922789","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"VIC","COUNTRY":"AUS","LAT_GDA94":-36.812625,"LONG_GDA94":144.232393,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":"Cutting adjacent to Bendigo-Castlemaine rail line","SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Saeed, A.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75256","AGE_REF":"Glen, R.A., Fitzsimons, I.C.W., Griffin, W.L., Saeed, A., 2017. East Antarctic sources of extensive Lower-Middle Ordovician turbidites in the Lachlan Orogen, southern Tasmanides, eastern Australia. Australian Journal of Earth Sciences, 64(2), 143-224.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099.2017.1273256","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14647","geometry":{"type":"Point","coordinates":[141.45440913,-32.73141469]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14647,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677769","IGSN":"10.60494/th42-qd18","SAMPLENO":9677769,"SAMPLE_ID":"AUR101946","AGE_MA":496,"AGE_MA_UNCERTAINTY":6,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":3.7,"NUMBER_OF_ANALYSES":6,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: HelEx 193 nm ArF Excimer laser ablation system","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7700","LABORATORY_NAME":"Macquarie University","AGE_INTERPRETED_FROM_SOURCE":"crystallisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"This age is miscalculated, using integer-rounded spot-ages and errors, and with the constituent 2sigma spot-errors misrepresented as 1sigma, which resulted in a calculated MSWD that is too low by a factor of ~4. The true weighted mean of the 6 unrounded 206Pb/238U ratios and their 2sigma errors (Table S1) is 0.07950 +/- 0.00235 (95% confidence as tsigma*sqrt[MSWD]), which converts to a 206Pb/238U date of 493 +/- 14 Ma (95% confidence), albeit with significant excess (i.e. geological) scatter indicated by its correctly-calculated MSWD value of 15.5.","AGE_SOURCE":"MinView/Original publication","PROJECT":null,"STRATNO":73421,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU73421","STRAT_UNIT_NAME":"Bittles Tank Volcanics","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Bittles Tank Volcanics","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate intrusive rock","LITHOLOGY":"monzonite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Polito et al 2015. Petrography: NBH010 155.9-156.0m: A medium-grained hornblende biotite quartz monzonite with around 5-8modal% interstitial anhedral quartz. It contains a cognate inclusion of monzogabbro like NBH009, composed of well formed khaki hornblende prisms, brown biotite, plagioclase laths, and interstitial Kspar, with common equant FeTi oxides and minimal alteration. Age is Early Middle Cambrian 508.2+/-3.8Ma. Baatar et al 2020 paraphrased \"Coarse-grained quartz monzonite. Medium-coarse grained, with hornblende and biotite phenocrysts comprising around 15% of the sample. Matrix is dominated by plagioclase and alkaline feldspars. In the coarse grained quartz monzonite (AUR101946), zircon grains are mostly light brown and transparent, euhedral, with more angular terminations and oscillatory zoning from cores to rims; they range from 25 to 90 um in length and 20 to 65 um in width.\"","SAMPLING_FEATURE_NAME":"NBH010","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH620970","BOREHOLE_TOP_DEPTH_M":155.9,"BOREHOLE_BASE_DEPTH_M":156,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.7314146862,"LONG_GDA94":141.4544091286,"ELEV_M_AHD":104,"ACCURACY_M":10,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Andrews, E.C.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75257","AGE_REF":"Baatar, B., Parra-Avila, L.A., Fiorentini, M.L., Polito, P., Crawford, A.J., 2020. Porphyry Cu fertility of the Loch Lilly-Kars Belt, western New South Wales, Australia. Australian Journal of Earth Sciences, 67(1), 75-87.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099.2019.1637937","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14692","geometry":{"type":"Point","coordinates":[141.45440913,-32.73141469]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14692,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677769","IGSN":"10.60494/th42-qd18","SAMPLENO":9677769,"SAMPLE_ID":"AUR101946","AGE_MA":508.2,"AGE_MA_UNCERTAINTY":3.8,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.12,"NUMBER_OF_ANALYSES":14,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"University of Tasmania","AGE_INTERPRETED_FROM_SOURCE":"emplacement age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"95% confidence as tsigma*sqrt(MSWD)","AGE_SOURCE":"MinView/Original publication","PROJECT":null,"STRATNO":73421,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU73421","STRAT_UNIT_NAME":"Bittles Tank Volcanics","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Kudgee, NBH010, 155.9-156.0 m","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate intrusive rock","LITHOLOGY":"monzonite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Polito et al 2015. Petrography: NBH010 155.9-156.0m: A medium-grained hornblende biotite quartz monzonite with around 5-8modal% interstitial anhedral quartz. It contains a cognate inclusion of monzogabbro like NBH009, composed of well formed khaki hornblende prisms, brown biotite, plagioclase laths, and interstitial Kspar, with common equant FeTi oxides and minimal alteration. Age is Early Middle Cambrian 508.2+/-3.8Ma. Baatar et al 2020 paraphrased \"Coarse-grained quartz monzonite. Medium-coarse grained, with hornblende and biotite phenocrysts comprising around 15% of the sample. Matrix is dominated by plagioclase and alkaline feldspars. In the coarse grained quartz monzonite (AUR101946), zircon grains are mostly light brown and transparent, euhedral, with more angular terminations and oscillatory zoning from cores to rims; they range from 25 to 90 um in length and 20 to 65 um in width.\"","SAMPLING_FEATURE_NAME":"NBH010","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH620970","BOREHOLE_TOP_DEPTH_M":155.9,"BOREHOLE_BASE_DEPTH_M":156,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.7314146862,"LONG_GDA94":141.4544091286,"ELEV_M_AHD":104,"ACCURACY_M":10,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Andrews, E.C.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75258","AGE_REF":"Polito, P., 2015, Second annual exploration report on EL8199 - Loch Lilly Project, covering period 6 November 2014 to 5 November 2015. Geological Survey of New South Wales Report GS, 2016/0059.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/report/RE0007943","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-12-09"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14650","geometry":{"type":"Point","coordinates":[145.471154,-30.253961]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14650,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677771","IGSN":"10.60494/j9cp-ak88","SAMPLENO":9677771,"SAMPLE_ID":"THOM","AGE_MA":594,"AGE_MA_UNCERTAINTY":7.1,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":4,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"Macquarie University","AGE_INTERPRETED_FROM_SOURCE":"magmatic age of the gabbro","OTHER_AGE_INTERPRETED_FROM_SOURCE":"535 +/- 19 Ma 95 % conf, MSWD 1.9, P 0.15, n= 5","AGE_REMARK_FROM_SOURCE":"The 11 zircons between 600 and 500 Ma fall into two groups: younger mean age of 535 +/- 19 Ma and older mean age of 594 +/- 7.1 Ma. The latter is inferred to approximate the magmatic age of the gabbro. The MSWD of 1.9 reported by Glen et al. (2013) is a copy-paste error; the associated probability (0.98; Figure 15i) looks correct, which implies that the true MSWD is very low.","AGE_SOURCE":"MinView/Original publications","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"volcanic rocks at Toorale","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"basic intrusive rock","LITHOLOGY":"gabbro","MODE_OF_OCCURRENCE":"intrusion","SAMPLE_TYPE":"core","SAMPLE_DESC":"Glen et al 2013: Getty drillhole Toorale DH6/7-1 was sited on an aeromagnetic anomaly northeast of Louth that is associated with andesitic rocks (e.g. Stanton-Cook 1979). The core intersected andesite and andesitic tuffs beneath the Eromanga Basin at a depth of 94 m. This sampled core is a ‘gabbroic’ sill or dyke at a depth of 98-99 m that is probably a monzodiorite that consists of chlorite-replaced probable pyroxenes, plagioclase and perthitic orthoclase. We were interested in this hole to gain an age of these volcanics, because on a regional scale, it is one of a series of pinhead anomalies that lie on or just north of the Mount Oxley Fault.","SAMPLING_FEATURE_NAME":"DH6/7-1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH917023","BOREHOLE_TOP_DEPTH_M":98,"BOREHOLE_BASE_DEPTH_M":99,"GEOLOGICAL_PROVINCE":"Thomson Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-30.253961,"LONG_GDA94":145.471154,"ELEV_M_AHD":112,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Getty Oil Development Co Ltd","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"68823","AGE_REF":"Glen, R.A., Korsch, R.J., Hegarty, R., Saeed, A., Djomani, Y.P., Costelloe, R.D., Belousova, E.A., 2013. Geodynamic significance of the boundary between the Thomson Orogen and the Lachlan Orogen, northwestern New South Wales and implications for Tasmanide tectonics. Australian Journal of Earth Sciences, 60(3), 371-412.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099.2013.782899","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14651","geometry":{"type":"Point","coordinates":[146.28677723,-29.94134717]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14651,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677772","IGSN":"10.60494/qkan-yp03","SAMPLENO":9677772,"SAMPLE_ID":"WARRA2","AGE_MA":576.9,"AGE_MA_UNCERTAINTY":5.6,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.81,"NUMBER_OF_ANALYSES":6,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"Macquarie University","AGE_INTERPRETED_FROM_SOURCE":"magmatic age of the andesite","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publications","PROJECT":null,"STRATNO":78456,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU78456","STRAT_UNIT_NAME":"Warraweena Volcanics","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Warraweena Volcanics","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate volcanic rock","LITHOLOGY":"andesite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Glen et al 2013: Drillhole ACDWE009 contains two types of volcanic rocks- a grey to black plagioclase-phyric andesitic rock containing about 20% plagioclase, and 15% fresh and altered clinopyroxene in a dark grey groundmass (Burton et al. 2008) and a green volcanic rock with black mafic (?pyroxene) crystals in a green finegrained ?chloritic matrix. ACDWE009: small variably shaped zircons are present from sample of black-grey andesite at a depth of 162.5-163.3 m. A plot of eHf against age for 29 zircons shows that those grains between 614 and 540 Ma have negative values of eHf ranging from –13.37 to –1.07. This suggests crystallisation from a magma derived from the melting of mafic rocks in older continental crust.","SAMPLING_FEATURE_NAME":"ACDWE009","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH514409","BOREHOLE_TOP_DEPTH_M":162.5,"BOREHOLE_BASE_DEPTH_M":163.3,"GEOLOGICAL_PROVINCE":"Thomson Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-29.9413471674,"LONG_GDA94":146.2867772256,"ELEV_M_AHD":89,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Newcrest Mining Ltd","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"68823","AGE_REF":"Glen, R.A., Korsch, R.J., Hegarty, R., Saeed, A., Djomani, Y.P., Costelloe, R.D., Belousova, E.A., 2013. Geodynamic significance of the boundary between the Thomson Orogen and the Lachlan Orogen, northwestern New South Wales and implications for Tasmanide tectonics. Australian Journal of Earth Sciences, 60(3), 371-412.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099.2013.782899","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14684","geometry":{"type":"Point","coordinates":[142.908157,-33.072323]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14684,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677773","IGSN":"10.60494/zy89-qp33","SAMPLENO":9677773,"SAMPLE_ID":"Wilkurra No.1-325 m","AGE_MA":417,"AGE_MA_UNCERTAINTY":6,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.95,"NUMBER_OF_ANALYSES":10,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"crystallisation age of the granite intersected by Wilkurra No. l.","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publications","PROJECT":null,"STRATNO":38898,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU38898","STRAT_UNIT_NAME":"Wilkurra Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Wilkurra Granite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Wilde 2000 paraphrased \"The zircons from the sample were varied in shape and degree of alteration. Some were clear, colourless to pale pink with an elongated shape. Others were more stubby and prismatic, pinker in colour, with weakly oscillatory zoning and few incursions.\" Moffit 2001: \"DM Wilkurra DDH1 was terminated at 618.2 m after penetrating 396.9 m of granite. The granite has been described by Barron (2000) as being a medium to coarse grained unfoliated, high-level, high-temperature, muscovite-biotite-cordierite sodic granite. Minor xenoliths indicate a melt source regime of high temperature - low pressure metasedimentary granulite terrane. The rocks are confirmed overwhelmingly as S-type granitoids.\"","SAMPLING_FEATURE_NAME":"Wilkurra DDH 1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH454432","BOREHOLE_TOP_DEPTH_M":325,"BOREHOLE_BASE_DEPTH_M":325,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-33.072323,"LONG_GDA94":142.908157,"ELEV_M_AHD":78,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-05-01","SAMPLE_ORIGINATOR":"New South Wales Department of Mineral Resources (NSWDMR)","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75759; 75772","AGE_REF":"Wilde, S.A., 2000, SHRIMP U-Pb dating of four granite samples from the Wilkurra no.1 and Mossgiel no.1 Boreholes, NSW. Geological Survey of New South Wales Report GS, 2006/158.; Moffitt, R.S., 2001, Coal and Petroleum Geology Branch Geological Survey of New South Wales - Well Completion Report DM WILKURRA DDH1. Geological Survey of New South Wales Report GS, 2001/202.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/report/R00041350; https://search.geoscience.nsw.gov.au/report/R00029741","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14670","geometry":{"type":"Point","coordinates":[142.908157,-33.072323]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14670,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677774","IGSN":"10.60494/fc2a-jf82","SAMPLENO":9677774,"SAMPLE_ID":"Wilkurra No.1-404 m","AGE_MA":423,"AGE_MA_UNCERTAINTY":6,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.62,"NUMBER_OF_ANALYSES":13,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"crystallisation age of the granite intersected by Wilkurra No. l.","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publications","PROJECT":null,"STRATNO":38898,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU38898","STRAT_UNIT_NAME":"Wilkurra Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Wilkurra Granite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Wilde 2000 paraphrased \"The zircons from the sample were varied in shape and degree of alteration. Some were clear, colourless to pale pink with an elongated shape. Others were more stubby and prismatic, pinker in colour, with weakly oscillatory zoning and few incursions.\" Moffit 2001: \"DM Wilkurra DDH1 was terminated at 618.2 m after penetrating 396.9 m of granite. The granite has been described by Barron (2000) as being a medium to coarse grained unfoliated, high-level, high-temperature, muscovite-biotite-cordierite sodic granite. Minor xenoliths indicate a melt source regime of high temperature - low pressure metasedimentary granulite terrane. The rocks are confirmed overwhelmingly as S-type granitoids.\"","SAMPLING_FEATURE_NAME":"Wilkurra DDH 1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH454432","BOREHOLE_TOP_DEPTH_M":404,"BOREHOLE_BASE_DEPTH_M":404,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-33.072323,"LONG_GDA94":142.908157,"ELEV_M_AHD":78,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-05-01","SAMPLE_ORIGINATOR":"New South Wales Department of Mineral Resources (NSWDMR)","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75759; 75772","AGE_REF":"Wilde, S.A., 2000, SHRIMP U-Pb dating of four granite samples from the Wilkurra no.1 and Mossgiel no.1 Boreholes, NSW. Geological Survey of New South Wales Report GS, 2006/158.; Moffitt, R.S., 2001, Coal and Petroleum Geology Branch Geological Survey of New South Wales - Well Completion Report DM WILKURRA DDH1. Geological Survey of New South Wales Report GS, 2001/202.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/report/R00041350; https://search.geoscience.nsw.gov.au/report/R00029741","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14700","geometry":{"type":"Point","coordinates":[141.68023382,-32.36456315]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14700,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677762","IGSN":"10.60494/dve6-bx77","SAMPLENO":9677762,"SAMPLE_ID":"VP008","AGE_MA":426.3,"AGE_MA_UNCERTAINTY":1.49,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":0.96,"NUMBER_OF_ANALYSES":13,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation split-stream (LASS): COMPex 102 193 nm excimer UV laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: RESOlution-LR","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"emplacement age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"sampled from NBH005 @ 156-158 m","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate volcanic rock","LITHOLOGY":"andesite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Perry paraphrased: Brown to grey coloured andesite with a porphyritic texture. Black sub-rounded and pinkish-white tabular grains (commonly 2 to 3 mm) stand out from the finer-grained brown groundmass. Patches of coarse red/orange (up to 5 mm) and green (2 to 3 mm) grains are also observed, possibly alteration products. Plagioclase and hornblende phenocrysts within a fine-grained groundmass of plagioclase and clay minerals. Plagioclase phenocrysts range in grainsize from 0.5 to 2.5 mm and are altered. Hornblende has been replaced with aggregates of chlorite, epidote and opaques.","SAMPLING_FEATURE_NAME":"NBH005","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH817056","BOREHOLE_TOP_DEPTH_M":156,"BOREHOLE_BASE_DEPTH_M":158,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.3645631494,"LONG_GDA94":141.6802338216,"ELEV_M_AHD":118,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75278","AGE_REF":"Perry, V.E., 2021, Geochemistry of the Loch Lilly-Kars volcanics and correlation along the Tasman Line, Eastern Australia. [Honours thesis, unpublished]. University of Newcastle, NSW.","AGE_PUBLICATION_LINKS":"Not Recorded","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14644","geometry":{"type":"Point","coordinates":[141.47166254,-32.52231978]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14644,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677763","IGSN":"10.60494/2aax-jy65","SAMPLENO":9677763,"SAMPLE_ID":"AUR101934","AGE_MA":393,"AGE_MA_UNCERTAINTY":4,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":2,"NUMBER_OF_ANALYSES":6,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: HelEx 193 nm ArF Excimer laser ablation system","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7700","LABORATORY_NAME":"Macquarie University","AGE_INTERPRETED_FROM_SOURCE":"crystallisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"This age is miscalculated, using integer-rounded spot-ages and errors, and with the constituent 2sigma spot-errors misrepresented as 1sigma, which resulted in a calculated MSWD that is too low by a factor of ~4. The true weighted mean of the 6 unrounded 206Pb/238U ratios and their 2sigma errors (Table S1) is 0.06299 +/- 0.00126 (95% confidence as tsigma*sqrt[MSWD]), which converts to a 206Pb/238U date of 394 +/- 8 Ma (95% confidence), albeit with significant excess (i.e. geological) scatter indicated by its correctly-calculated MSWD value of 7.1.","AGE_SOURCE":"MinView/Original publication","PROJECT":null,"STRATNO":7460,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU7460","STRAT_UNIT_NAME":"Gnalta Group","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Gnalta Group","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate intrusive rock","LITHOLOGY":"monzonite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Baatar et al 2020 paraphrased \"Fine-grained quartz monzonite. Fine-grained, equigranular with amphibole-biotite phenocrysts. K-feldspar comprises the main groundmass along with plagioclase phenocrysts. Weak amphibole and sericite alteration occur after pyroxene and feldspar, respectively. Zircon grains from the fine-grained quartz monzonite (AUR101934) are predominantly transparent and darkish brown around the edges, mostly euhedral with slightly rounded to subrounded terminations and range from 30 to 90 mm in length and 10 to 60 um in width. Polito et al 2015. Petrography: NBH007 134.25-134.90m: A hornblende+brown biotite-bearing micromonzonite with around 5-8modal% interstitial anhedral quartz and plagioclase well in excess of Kspar. Pale green hornblende prisms are common, and mm-sized brown biotite plates make up bout 2-4modal% of the rock. Alteration is limited to spotty sericite development in some plagioclases. Age is Middle Silurian (Wenlock) 424+/-5.2Ma.","SAMPLING_FEATURE_NAME":"NBH007","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH817057","BOREHOLE_TOP_DEPTH_M":134.25,"BOREHOLE_BASE_DEPTH_M":134.9,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.5223197766,"LONG_GDA94":141.4716625428,"ELEV_M_AHD":114,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75257","AGE_REF":"Baatar, B., Parra-Avila, L.A., Fiorentini, M.L., Polito, P., Crawford, A.J., 2020. Porphyry Cu fertility of the Loch Lilly-Kars Belt, western New South Wales, Australia. Australian Journal of Earth Sciences, 67(1), 75-87.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099.2019.1637937","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14691","geometry":{"type":"Point","coordinates":[141.47166254,-32.52231978]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14691,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677763","IGSN":"10.60494/2aax-jy65","SAMPLENO":9677763,"SAMPLE_ID":"AUR101934","AGE_MA":424,"AGE_MA_UNCERTAINTY":5.2,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.3,"NUMBER_OF_ANALYSES":12,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"University of Tasmania","AGE_INTERPRETED_FROM_SOURCE":"emplacement age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"95% confidence as tsigma*sqrt(MSWD)","AGE_SOURCE":"MinView/Original publication","PROJECT":null,"STRATNO":7460,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU7460","STRAT_UNIT_NAME":"Gnalta Group","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"NBH007, 134.25-134.90 m","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate intrusive rock","LITHOLOGY":"monzonite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Baatar et al 2020 paraphrased \"Fine-grained quartz monzonite. Fine-grained, equigranular with amphibole-biotite phenocrysts. K-feldspar comprises the main groundmass along with plagioclase phenocrysts. Weak amphibole and sericite alteration occur after pyroxene and feldspar, respectively. Zircon grains from the fine-grained quartz monzonite (AUR101934) are predominantly transparent and darkish brown around the edges, mostly euhedral with slightly rounded to subrounded terminations and range from 30 to 90 mm in length and 10 to 60 um in width. Polito et al 2015. Petrography: NBH007 134.25-134.90m: A hornblende+brown biotite-bearing micromonzonite with around 5-8modal% interstitial anhedral quartz and plagioclase well in excess of Kspar. Pale green hornblende prisms are common, and mm-sized brown biotite plates make up bout 2-4modal% of the rock. Alteration is limited to spotty sericite development in some plagioclases. Age is Middle Silurian (Wenlock) 424+/-5.2Ma.","SAMPLING_FEATURE_NAME":"NBH007","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH817057","BOREHOLE_TOP_DEPTH_M":134.25,"BOREHOLE_BASE_DEPTH_M":134.9,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.5223197766,"LONG_GDA94":141.4716625428,"ELEV_M_AHD":114,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75258","AGE_REF":"Polito, P., 2015, Second annual exploration report on EL8199 - Loch Lilly Project, covering period 6 November 2014 to 5 November 2015. Geological Survey of New South Wales Report GS, 2016/0059.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/report/RE0007943","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-12-09"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14305","geometry":{"type":"Point","coordinates":[141.49996,-31.99737]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14305,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655622","IGSN":"10.60494/0y6e-t259","SAMPLENO":9655622,"SAMPLE_ID":"02BH7-2","AGE_MA":1630,"AGE_MA_UNCERTAINTY":6,"AGE_CONFIDENCE_LEVEL":"1 standard deviation","AGE_MSWD":null,"NUMBER_OF_ANALYSES":7,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"metamorphism","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Monazite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP RG","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"M2 metamorphism","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":25749,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU25749","STRAT_UNIT_NAME":"Thackaringa Group","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Airport, Thackaringa Group","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"foliated metamorphic rock","LITHOLOGY":"gneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"McFarlane and Frost, 2009 paraphrased \" The sample was a migmatitic pelitic gneiss","SAMPLING_FEATURE_NAME":"02BH7-1/2/3","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917324","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Curnamona Province","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-31.99737,"LONG_GDA94":141.49996,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"McFarlane, C.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"64847","AGE_REF":"McFarlane, C.R.M., Frost, B.R., 2009. Constraints on the early metamorphic evolution of Broken Hill, Australia, from in situ U-Pb dating and REE geochemistry of monazite. 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Dubbo 1:250 000 Geological Sheet SI/55-4: Explanatory Notes. 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Outcomes of the Nymagee mineral system study - an improved understanding of the timing of events and prospectivity of the central Lachlan Orogen. Geological Survey of New South Wales. Quarterly Notes, 147, 1-38.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/report/R00076225","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14338","geometry":{"type":"Point","coordinates":[149.630309,-32.502518]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14338,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655644","IGSN":"10.60494/xpsc-0446","SAMPLENO":9655644,"SAMPLE_ID":"MUSM0445","AGE_MA":400,"AGE_MA_UNCERTAINTY":8,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":0.99,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":"Z2785","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"simple age population, magmatic","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":5845,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU5845","STRAT_UNIT_NAME":"Dungeree Volcanics","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Dungeree Volcanics","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid volcanic rock","LITHOLOGY":"rhyolite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Rhyolitic Tuff. Meakin & Morgan 1999 paraphrased: \"The Dungeree Volcanics is comprised of thick sequences of rhyolite to dacite and auto clastic horizons, with lesser latite to trachyandesite lava. Other rock types include thick lenses of slate (mainly towards the top of the unit), interbeds or thick sequences of silicic to intermediate volcaniclastic sandstone, basement-· derived conglomerate, allochthonous to autochthonous limestone and limestone breccia. Deposition took place largely in the late Ludlow to Pridoli intervals. Depositional enviromnents for the Dungeree Volcanics were apparently somewhat varied: southern outcrops suggest a carbonate/ terrigenous slope environment influenced by a growing volcanic pile. Farther north, however, the formation appears to represent a thick shallow marine to emergent volcanic pile with fringing clastic and carbonate deposition, and adjacent slope areas.\"","SAMPLING_FEATURE_NAME":"MUSM0445","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917487","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.502518,"LONG_GDA94":149.630309,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Meakin, N.S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"23170; 73848","AGE_REF":"Fanning, C.M., 1997, SHRIMP zircon U/Pb age dates for samples from the Dubbo 1:250 000 sheet area. Geological Survey of New South Wales, Report, 1997/590.; Meakin, N.S., Morgan, E.J., 1999. Dubbo 1:250 000 Geological Sheet SI/55-4: Explanatory Notes. Geological Survey of New South Wales, Sydney, 1v, 504p.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/product/453; https://search.geoscience.nsw.gov.au/report/R00034286","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14390","geometry":{"type":"Point","coordinates":[149.065711,-32.510139]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14390,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655645","IGSN":"10.60494/3wfc-fd06","SAMPLENO":9655645,"SAMPLE_ID":"EULB0013","AGE_MA":325,"AGE_MA_UNCERTAINTY":6,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":0.56,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":"Z2786","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"magmatic","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":20680,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU20680","STRAT_UNIT_NAME":"Wuuluman Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Wuuluman Granite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":"intrusion","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Megacrystic granite. Meakin & Morgan 1999 paraphrased: \"...most of the megacrysts are pink K-feldspar, several have dark pink cores rimmed by white aIbite, while one megacryst is composed completely of white albite. The rimming texture is a variation on the rapikivi texture of plagioclase mantling alkali feldspar.\"","SAMPLING_FEATURE_NAME":"EULB0013","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917430","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.510139,"LONG_GDA94":149.065711,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Barron, L.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"23170; 73848","AGE_REF":"Fanning, C.M., 1997, SHRIMP zircon U/Pb age dates for samples from the Dubbo 1:250 000 sheet area. Geological Survey of New South Wales, Report, 1997/590.; Meakin, N.S., Morgan, E.J., 1999. Dubbo 1:250 000 Geological Sheet SI/55-4: Explanatory Notes. Geological Survey of New South Wales, Sydney, 1v, 504p.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/product/453; https://search.geoscience.nsw.gov.au/report/R00034286","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14135","geometry":{"type":"Point","coordinates":[145.8385058,-32.5248203]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14135,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655646","IGSN":"10.60494/6z0d-1y97","SAMPLENO":9655646,"SAMPLE_ID":"TRI-52","AGE_MA":415.8,"AGE_MA_UNCERTAINTY":3.1,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"not reported","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"timing of magmatic event","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":24748,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU24748","STRAT_UNIT_NAME":"Boolahbone Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Boolahbone Granite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":"intrusion","SAMPLE_TYPE":"unknown","SAMPLE_DESC":"Felsic A-type granite","SAMPLING_FEATURE_NAME":"TRI-52","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917577","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.5248203,"LONG_GDA94":145.8385058,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"70751","AGE_REF":"Downes, P.M., Blevin, P.L., Armstrong, R., Simpson, C.J., Sherwin, L., Tilley, D.B., Burton, G.R., 2016. Outcomes of the Nymagee mineral system study - an improved understanding of the timing of events and prospectivity of the central Lachlan Orogen. Geological Survey of New South Wales. Quarterly Notes, 147, 1-38.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/report/R00076225","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14130","geometry":{"type":"Point","coordinates":[149.289281,-32.5265756]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14130,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655647","IGSN":"10.60494/vskb-fr64","SAMPLENO":9655647,"SAMPLE_ID":"EUMS0408b","AGE_MA":420,"AGE_MA_UNCERTAINTY":5,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":0.57,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":"Z2786","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"magmatic","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Simple age population, magmatic.","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":30646,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU30646","STRAT_UNIT_NAME":"Piambong Formation","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Piambong Formation","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous material","LITHOLOGY":"tephra","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Coarse rhyolitic volcaniclastic. Latitic tuff. Meakin & Morgan 1999 paraphrased: \"The Piambong Formation is well-exposed on ridges and in creeks/gullies. Low, often rubbly or bouldery outcrops are common, and cleavage is usually strongly developed. This Formation is comprised of greenish to buff, fine-grained quartzose to quartz-lithic sandstone and siltstone interbedded with greenish, grey and purple, medium- to coarse-grained quartzofeldspathic lithic-volcaniclastic sandstone to conglomerate. Other layers include grey, silicified rhyolitic crystal-vitric tuffand lithic-crystal-vitric tuff. The volcaniclastic horizons are of rhyolitic, rhyodacitic and latitic composition, and minor latite/felsite lavas occur. Primary volcaniclastic sandstone and tuff make up more than half the sequence, consisting of bedded distal vitric tuffs with minor cross bedding and convolute lamination, non-welded medial crystalvitric tuffs and fines-depleted water-fluidised grain flows. Rhyolite magma compositions dominate by a factor of ten over the felsite (low quartz) compositions, with the latter restricted in extent. The Piambong Formation is conformably overlain by the Turondale Fonnation of Early Devonian age and is intruded by mafic to intermediate stocks and sills which have been isotopically dated as Early Devonian. The Piambong Formation is at least in part equivalent in age to the Gleneski Formation to the west.\"","SAMPLING_FEATURE_NAME":"EUMS0408b","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917431","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.5265756,"LONG_GDA94":149.289281,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Scott, M.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"23170; 73848","AGE_REF":"Fanning, C.M., 1997, SHRIMP zircon U/Pb age dates for samples from the Dubbo 1:250 000 sheet area. Geological Survey of New South Wales, Report, 1997/590.; Meakin, N.S., Morgan, E.J., 1999. Dubbo 1:250 000 Geological Sheet SI/55-4: Explanatory Notes. Geological Survey of New South Wales, Sydney, 1v, 504p.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/product/453; https://search.geoscience.nsw.gov.au/report/R00034286","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14260","geometry":{"type":"Point","coordinates":[145.8554014,-32.5648744]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14260,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655648","IGSN":"10.60494/fq74-4t12","SAMPLENO":9655648,"SAMPLE_ID":"KB426","AGE_MA":415.3,"AGE_MA_UNCERTAINTY":4.7,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.8,"NUMBER_OF_ANALYSES":8,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: HP/Agilent 4500 series","LABORATORY_NAME":"University of Tasmania","AGE_INTERPRETED_FROM_SOURCE":"U-Pb zircon age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":23819,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU23819","STRAT_UNIT_NAME":"Mount Halfway Volcanics","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Mount Hope Volcanics","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid volcanic rock","LITHOLOGY":"rhyolite","MODE_OF_OCCURRENCE":"sill","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Bull et al 2008 paraphrased: \"Mt Hope Volcanics are comprised of lavas and sills and associated autoclastic breccias, interbedded with a variety of predominantly syn-eruptive pyroclastic volcaniclastic deposits, and non-volcanic sedimentary facies. Felsic coherent facies comprise ~50% of the exposed volcanic facies (coherent and volcaniclastic), and mafic-intermediate facies consist of rare, crosscutting dykes. The sample was extracted from a rhyolite sill within clast bearing high-SiO2 rhyolite facies atop Mt Victor.\"","SAMPLING_FEATURE_NAME":"KB426","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917461","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.5648744,"LONG_GDA94":145.8554014,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"63891","AGE_REF":"Bull, K.F., Crawford, A.J., McPhie, J., Newberry, R.J., Meffre, S., 2008. Geochemistry, geochronology and tectonic implications of Late Silurian - Early Devonian volcanic successions, Central Lachlan Orogen, New South Wales. Australian Journal of Earth Sciences, 55(2), 235-264.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120090701689381","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14697","geometry":{"type":"Point","coordinates":[141.693742,-32.358824]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14697,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677747","IGSN":"10.60494/8cg0-wx56","SAMPLENO":9677747,"SAMPLE_ID":"AUR101961","AGE_MA":425.7,"AGE_MA_UNCERTAINTY":8.7,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.69,"NUMBER_OF_ANALYSES":9,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Titanite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"University of Tasmania","AGE_INTERPRETED_FROM_SOURCE":"emplacement age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"95% confidence as 2sigma","AGE_SOURCE":"MinView/Original publication","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"EHK3 184.7-184.8","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate volcanic rock","LITHOLOGY":"andesite","MODE_OF_OCCURRENCE":"dyke","SAMPLE_TYPE":"core","SAMPLE_DESC":"Polito et al 2015. Petrography: EHK3 184.7-184.8m: An altered plagioclase+hornblende+biotite-phyric andesite porphyry, with chloritized biotite and actinolite-chlorite-carbonate-altered former hornblende phenocrysts. Hosts a finer-grained hornblende microgabbro cognate inclusion. Disseminated tatty pyrite grains to 2mm across, but no associated base metal sulfides. Age 425.7+/-8.7Ma.","SAMPLING_FEATURE_NAME":"DD95EHK3","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH866065","BOREHOLE_TOP_DEPTH_M":184.7,"BOREHOLE_BASE_DEPTH_M":184.8,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.358824,"LONG_GDA94":141.693742,"ELEV_M_AHD":115,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Andrews, E.C.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75258","AGE_REF":"Polito, P., 2015, Second annual exploration report on EL8199 - Loch Lilly Project, covering period 6 November 2014 to 5 November 2015. Geological Survey of New South Wales Report GS, 2016/0059.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/report/RE0007943","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14648","geometry":{"type":"Point","coordinates":[142.00113867,-31.96416549]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14648,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677748","IGSN":"10.60494/t65c-9v49","SAMPLENO":9677748,"SAMPLE_ID":"3a-65508","AGE_MA":521,"AGE_MA_UNCERTAINTY":4,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":1.16,"NUMBER_OF_ANALYSES":13,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP I","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"crystallisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"Sample 3a-65508 -DDH96WA3","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate intrusive rock","LITHOLOGY":"monzodiorite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Intrusive complex. Strong matrix 35% Kstain, absent in domain with 3%sulphides. Grey hard plagioclase porphyritic 1 mm monzodiorite. The zircons are all simple zoned, euhedral magmatic grains with pyramidal terminations, or are fragments of such grains.","SAMPLING_FEATURE_NAME":"DD96WA3","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH817052","BOREHOLE_TOP_DEPTH_M":880.74,"BOREHOLE_BASE_DEPTH_M":880.87,"GEOLOGICAL_PROVINCE":"Curnamona Province","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-31.9641654934,"LONG_GDA94":142.0011386679,"ELEV_M_AHD":135,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"1997-12-13","SAMPLE_ORIGINATOR":"Suppel, D.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75771","AGE_REF":"Fanning, C.M., 2000. Re: Zircons, Wahratta, Broken Hill [email dated 20 April 2000]. IN: Gilmore, P.J. (compiler): SHRIMP 1 age dating by PRISE of the Wahratta prospect, near Broken Hill (historical documents). Geological Survey of New South Wales Report GS, 2010/0807, 33p.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/report/R00036882","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14642","geometry":{"type":"Point","coordinates":[142.00113867,-31.96416549]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14642,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677749","IGSN":"10.60494/fx96-mk16","SAMPLENO":9677749,"SAMPLE_ID":"4-65509","AGE_MA":519,"AGE_MA_UNCERTAINTY":4,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":0.75,"NUMBER_OF_ANALYSES":12,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP I","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"crystallisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"Sample 4-65509 - DDH96WA3","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate intrusive rock","LITHOLOGY":"monzodiorite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Intrusive complex. Strong matrix 45% Kstain, weak in plagioclase. Brown H5 miarolitic plagioclase porphyritic 1 mm monzodiorite. The zircons are all simple zoned, euhedral magmatic grains with pyramidal terminations, or are fragments of such grains.","SAMPLING_FEATURE_NAME":"DD96WA3","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH817052","BOREHOLE_TOP_DEPTH_M":996,"BOREHOLE_BASE_DEPTH_M":996.15,"GEOLOGICAL_PROVINCE":"Curnamona Province","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-31.9641654934,"LONG_GDA94":142.0011386679,"ELEV_M_AHD":135,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"1997-12-13","SAMPLE_ORIGINATOR":"Suppel, D.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75771","AGE_REF":"Fanning, C.M., 2000. Re: Zircons, Wahratta, Broken Hill [email dated 20 April 2000]. IN: Gilmore, P.J. (compiler): SHRIMP 1 age dating by PRISE of the Wahratta prospect, near Broken Hill (historical documents). Geological Survey of New South Wales Report GS, 2010/0807, 33p.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/report/R00036882","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14645","geometry":{"type":"Point","coordinates":[142.00113867,-31.96416549]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14645,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677750","IGSN":"10.60494/097q-pw18","SAMPLENO":9677750,"SAMPLE_ID":"3-65507","AGE_MA":505,"AGE_MA_UNCERTAINTY":3,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":1.1,"NUMBER_OF_ANALYSES":13,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP I","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"crystallisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"Sample 3-65507 DDH96WA3","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate intrusive rock","LITHOLOGY":"monzodiorite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Intrusive complex with aplite veins. 35% Kstain is strong in matrix, weak in plagioclase. Grey H6 flow aligned plagioclase porphyritic 1 mm monzodiorite. The zircons are all simple zoned, euhedral magmatic grains with pyramidal terminations, or are fragments of such grains.","SAMPLING_FEATURE_NAME":"DD96WA3","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH817052","BOREHOLE_TOP_DEPTH_M":852.25,"BOREHOLE_BASE_DEPTH_M":852.41,"GEOLOGICAL_PROVINCE":"Curnamona Province","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-31.9641654934,"LONG_GDA94":142.0011386679,"ELEV_M_AHD":135,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"1997-12-13","SAMPLE_ORIGINATOR":"Suppel, D.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75771","AGE_REF":"Fanning, C.M., 2000. Re: Zircons, Wahratta, Broken Hill [email dated 20 April 2000]. IN: Gilmore, P.J. (compiler): SHRIMP 1 age dating by PRISE of the Wahratta prospect, near Broken Hill (historical documents). Geological Survey of New South Wales Report GS, 2010/0807, 33p.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/report/R00036882","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14681","geometry":{"type":"Point","coordinates":[142.00113867,-31.96416549]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14681,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677751","IGSN":"10.60494/5230-km19","SAMPLENO":9677751,"SAMPLE_ID":"AUR101988","AGE_MA":523.2,"AGE_MA_UNCERTAINTY":4.4,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.6,"NUMBER_OF_ANALYSES":14,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"University of Tasmania","AGE_INTERPRETED_FROM_SOURCE":"emplacement age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"95% confidence as tsigma*sqrt(MSWD)","AGE_SOURCE":"MinView/Original publication","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"DD96WA3, 887.1-887.3 m","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate intrusive rock","LITHOLOGY":"monzodiorite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Polito et al 2015. Petrography: DD96WA3 887.1-887.3m: A coarsely plagioclase-phyric monzodiorite with large, fresh plagioclase phenocrysts to almost 1cm long embedded in a finer-grained plagioclaseaugite-Kspar-brown biotite and common FeTi oxides. About 1modal% interstitial quartz, and no sulfides. Regional metamorphic greenschist facies alteration assemblage, with pervasive clay(?) alteration of Kspar. Moderately magnetic. Age 523.2+/-4.4Ma Early Cambrian.","SAMPLING_FEATURE_NAME":"DD96WA3","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH817052","BOREHOLE_TOP_DEPTH_M":887.1,"BOREHOLE_BASE_DEPTH_M":887.3,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-31.9641654934,"LONG_GDA94":142.0011386679,"ELEV_M_AHD":135,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Andrews, E.C.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75258","AGE_REF":"Polito, P., 2015, Second annual exploration report on EL8199 - Loch Lilly Project, covering period 6 November 2014 to 5 November 2015. Geological Survey of New South Wales Report GS, 2016/0059.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/report/RE0007943","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-12-09"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14680","geometry":{"type":"Point","coordinates":[142.00113867,-31.96416549]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14680,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677752","IGSN":"10.60494/9m3a-g969","SAMPLENO":9677752,"SAMPLE_ID":"AUR101989","AGE_MA":502.9,"AGE_MA_UNCERTAINTY":8.1,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.3,"NUMBER_OF_ANALYSES":9,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Titanite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"University of Tasmania","AGE_INTERPRETED_FROM_SOURCE":"emplacement age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"95% confidence as tsigma*sqrt(MSWD)","AGE_SOURCE":"MinView/Original publication","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"DD96WA03 - 931.0-931.2","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate volcanic rock","LITHOLOGY":"andesite","MODE_OF_OCCURRENCE":"dyke","SAMPLE_TYPE":"core","SAMPLE_DESC":"Polito et al 2015. Petrography: DD96WA3 931.0-931.2m: A non-magnetic, strongly plagioclase-phyric andesite porphyry dyke rock in which the ~5-10 modal% of former mafic phenocrysts (either augite or hornblende) are altered to epidote and chlorite-actinolite aggregates. Microcrystalline epidote and sericite replace all plagioclase. Finely holocrystalline groundmass with spotty epidote. Age 502.9+/-3.8Ma Middle Cambrian.","SAMPLING_FEATURE_NAME":"DD96WA3","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH817052","BOREHOLE_TOP_DEPTH_M":931,"BOREHOLE_BASE_DEPTH_M":931.2,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-31.9641654934,"LONG_GDA94":142.0011386679,"ELEV_M_AHD":135,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Andrews, E.C.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75258","AGE_REF":"Polito, P., 2015, Second annual exploration report on EL8199 - Loch Lilly Project, covering period 6 November 2014 to 5 November 2015. Geological Survey of New South Wales Report GS, 2016/0059.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/report/RE0007943","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14707","geometry":{"type":"Point","coordinates":[144.012106,-32.079285]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14707,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677753","IGSN":"10.60494/k0vd-6z59","SAMPLENO":9677753,"SAMPLE_ID":"DDH1-187.40 m (a)","AGE_MA":416,"AGE_MA_UNCERTAINTY":20,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":3,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"estimated age of the rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"All samples show more than one population of zircon and they all contain concordant populations around 400 Ma. This sample contains the greatest range of concordant ages, which suggests detrital zircons from a variety of sources.","AGE_SOURCE":"MinView/Original publications","PROJECT":null,"STRATNO":27673,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU27673","STRAT_UNIT_NAME":"Cobar Supergroup","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Sample 187.40 m","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"fine grained siliciclastic rock","LITHOLOGY":"claystone","MODE_OF_OCCURRENCE":"band, layer","SAMPLE_TYPE":"core","SAMPLE_DESC":"Claystone band ~5 cm thick at 187.4 m. Clark et al 2001 - Appendix 1: Est Depth 184.81 m \"CLAYSTONE: green; soft; laminated 5: 60: 20: 15 with SILTSTONE: grey and grey-brown; sandy; and, SANDSTONE: grey and grey-brown; very fine-grained; and, SANDSTONE: grey; finegrained; erosional base.\" At Depth 187.97 m \"CLAYSTONE: grey; laminated 5: 20: 75 with CLAYSTONE: grey-brown; siltstone; and, SILTSTONE: grey; erosional base.\"","SAMPLING_FEATURE_NAME":"Kewell East 1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH555372","BOREHOLE_TOP_DEPTH_M":186.4,"BOREHOLE_BASE_DEPTH_M":187.36,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.079285,"LONG_GDA94":144.012106,"ELEV_M_AHD":88,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Clark, N.R.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75773; 75774","AGE_REF":"Wilde, S.A., 1998, SHRIMP U-Pb dating of selected portions of DM Kewell East DDH 1, Darling Basin, NSW. Geological Survey of New South Wales Report GS, 2000/420.; Clark, N.R., Moffitt, R.S., Shaw, R.D., 2001, Well Completion report, Kewell East DDH 1, Darling Basin. Geological Survey of New South Wales Report GS, 2001/418.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/report/R00019264; https://search.geoscience.nsw.gov.au/report/R00046886","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14676","geometry":{"type":"Point","coordinates":[144.012106,-32.079285]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14676,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677754","IGSN":"10.60494/96g2-8k50","SAMPLENO":9677754,"SAMPLE_ID":"DDH1-187.40 m (b)","AGE_MA":381,"AGE_MA_UNCERTAINTY":7,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":1,"CALCULATION_TYPE":"single analysis","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"minimum age on the rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"All samples show more than one population of zircon and they all contain concordant populations around 400 Ma. This sample contains the greatest range of concordant ages, which suggests detrital zircons from a variety of sources.","AGE_SOURCE":"MinView/Original publications","PROJECT":null,"STRATNO":27673,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU27673","STRAT_UNIT_NAME":"Cobar Supergroup","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Sample 187.40 m","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"fine grained siliciclastic rock","LITHOLOGY":"claystone","MODE_OF_OCCURRENCE":"band, layer","SAMPLE_TYPE":"core","SAMPLE_DESC":"Claystone band ~5 cm thick at 187.4 m. Clark et al 2001 - Appendix 1: Est Depth 184.81 m \"CLAYSTONE: green; soft; laminated 5: 60: 20: 15 with SILTSTONE: grey and grey-brown; sandy; and, SANDSTONE: grey and grey-brown; very fine-grained; and, SANDSTONE: grey; finegrained; erosional base.\" At Depth 187.97 m \"CLAYSTONE: grey; laminated 5: 20: 75 with CLAYSTONE: grey-brown; siltstone; and, SILTSTONE: grey; erosional base.\"","SAMPLING_FEATURE_NAME":"Kewell East 1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH555372","BOREHOLE_TOP_DEPTH_M":186.4,"BOREHOLE_BASE_DEPTH_M":187.36,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.079285,"LONG_GDA94":144.012106,"ELEV_M_AHD":88,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Clark, N.R.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75773; 75774","AGE_REF":"Wilde, S.A., 1998, SHRIMP U-Pb dating of selected portions of DM Kewell East DDH 1, Darling Basin, NSW. Geological Survey of New South Wales Report GS, 2000/420.; Clark, N.R., Moffitt, R.S., Shaw, R.D., 2001, Well Completion report, Kewell East DDH 1, Darling Basin. Geological Survey of New South Wales Report GS, 2001/418.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/report/R00019264; https://search.geoscience.nsw.gov.au/report/R00046886","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14683","geometry":{"type":"Point","coordinates":[144.012106,-32.079285]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14683,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677755","IGSN":"10.60494/w2ph-k914","SAMPLENO":9677755,"SAMPLE_ID":"DDH1-737.90 m","AGE_MA":417,"AGE_MA_UNCERTAINTY":11,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":6,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"estimated age of the rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"All samples show more than one population of zircon and they all contain concordant populations around 400 Ma","AGE_SOURCE":"MinView/Original publications","PROJECT":null,"STRATNO":27673,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU27673","STRAT_UNIT_NAME":"Cobar Supergroup","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Sample 737.90 m","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous volcanic rock","LITHOLOGY":"tuff","MODE_OF_OCCURRENCE":"band, layer","SAMPLE_TYPE":"core","SAMPLE_DESC":"Thick green bentonitic banded unit; altered tuff and lapilli tuff/sandstone bands. Clark et al 2001 - Appendix 1: Est Depth 737.97 m \"TUFF: dark green; coarsely laminated 60: 40 with SILTSTONE: dark-green; tuffaceous; fine and coarse laminations; marine fossils; common oblique joints; slickensides on fractures; chlorite on fractures; faulted base. Bryozoans at 733.20-733.28 m.\"","SAMPLING_FEATURE_NAME":"Kewell East 1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH555372","BOREHOLE_TOP_DEPTH_M":737.84,"BOREHOLE_BASE_DEPTH_M":737.9,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.079285,"LONG_GDA94":144.012106,"ELEV_M_AHD":88,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Clark, N.R.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75773; 75774","AGE_REF":"Wilde, S.A., 1998, SHRIMP U-Pb dating of selected portions of DM Kewell East DDH 1, Darling Basin, NSW. Geological Survey of New South Wales Report GS, 2000/420.; Clark, N.R., Moffitt, R.S., Shaw, R.D., 2001, Well Completion report, Kewell East DDH 1, Darling Basin. Geological Survey of New South Wales Report GS, 2001/418.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/report/R00019264; https://search.geoscience.nsw.gov.au/report/R00046886","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14652","geometry":{"type":"Point","coordinates":[144.012106,-32.079285]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14652,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677756","IGSN":"10.60494/awfq-8432","SAMPLENO":9677756,"SAMPLE_ID":"DDH1-742.26 m","AGE_MA":411,"AGE_MA_UNCERTAINTY":6,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":10,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"estimated age of the rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"All samples show more than one population of zircon and they all contain concordant populations around 400 Ma","AGE_SOURCE":"MinView/Original publications","PROJECT":null,"STRATNO":27673,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU27673","STRAT_UNIT_NAME":"Cobar Supergroup","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Sample 742.26 m","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous volcanic rock","LITHOLOGY":"tuff","MODE_OF_OCCURRENCE":"band, layer","SAMPLE_TYPE":"core","SAMPLE_DESC":"Thick bentonitic claystone unit; altered tuff and lapilli tuff/sandstone bands. Clark et al 2001 - Appendix 1: Est Depth 742.00 m \"CLAYSTONE: black; slickensided fractures; laminated and interbedded 5: 25: 70 with SILTSTONE: dark-grey and grey; and SANDSTONE: grey; very fine to coarse-grained; fine and coarse laminations, disturbed bedding fine cross bedding thickly bedded silty; common bioturbation; common worm burrows; calcite on fractures; common oblique joints; irregular base. Shell fragments are calcareous. Coarser sandstone is calcareous, in part.\" Depth 742.58 m \"TUFF: Dark-green and green; chlorite on fractures. slickensided fractures; abundant oblique joints; faulted base. Basal 0.05 m is puggy, brecciated and paler in colour. Swells on wetting.\"","SAMPLING_FEATURE_NAME":"Kewell East 1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH555372","BOREHOLE_TOP_DEPTH_M":742.16,"BOREHOLE_BASE_DEPTH_M":742.26,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.079285,"LONG_GDA94":144.012106,"ELEV_M_AHD":88,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Clark, N.R.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75773; 75774","AGE_REF":"Wilde, S.A., 1998, SHRIMP U-Pb dating of selected portions of DM Kewell East DDH 1, Darling Basin, NSW. Geological Survey of New South Wales Report GS, 2000/420.; Clark, N.R., Moffitt, R.S., Shaw, R.D., 2001, Well Completion report, Kewell East DDH 1, Darling Basin. Geological Survey of New South Wales Report GS, 2001/418.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/report/R00019264; https://search.geoscience.nsw.gov.au/report/R00046886","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14704","geometry":{"type":"Point","coordinates":[145.194924,-30.802657]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14704,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677757","IGSN":"10.60494/yc50-e734","SAMPLENO":9677757,"SAMPLE_ID":"Louth A LOUA","AGE_MA":422,"AGE_MA_UNCERTAINTY":4,"AGE_CONFIDENCE_LEVEL":"1 standard deviation","AGE_MSWD":null,"NUMBER_OF_ANALYSES":1,"CALCULATION_TYPE":"single analysis","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"Macquarie University","AGE_INTERPRETED_FROM_SOURCE":"maximum depositional age","OTHER_AGE_INTERPRETED_FROM_SOURCE":"Next 5 youngest grains are 441.6 +/- 3.8 Ma (95% confidence), MSWD = 0.30.","AGE_REMARK_FROM_SOURCE":"The youngest grain (422 Ma) has a discordance of <3% and is inferred to have real meaning.","AGE_SOURCE":"MinView/Original publications","PROJECT":null,"STRATNO":78367,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU78367","STRAT_UNIT_NAME":"Louth Volcanics","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Louth Volcanics","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"medium-coarse grained siliciclastic rock","LITHOLOGY":"sandstone","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Volcanogenic sandstone. Glen et al 2010: \"\"INTERMEDIATE TO MAFIC VOLCANIC UNITS - These include basalts and andesites, informally referred to as the Louth volcanics. Amygdaloidal pillows and pillow fragments are common. Limestone fragments are present. Brunker (1968) cited a suggested Late Silurian fossil age based on J. W. Pickett, but this age is uncertain. More recent sampling of limestone fragments from Louth DH L2 yielded the conodont Ozarkodina remscheidensis, suggestive of Pridoli to Lochkovian ages, perhaps extending up into the Pragian (ie latest Silurian to Early Devonian). The sample Louth A is a volcanogenic sandstone from Louth DH L2, located on the Louth 1:100 000 sheet 7936 at GR 327115 6590685 and at a depth of 457--458 feet.\" Glen et al 2013: \"Twenty-four detrital zircons from a volcaniclastic sandstone (Louth A) at a depth of 457-458 feet in drillhole Louth 2 were separated and analysed for their U-Pb ratios.","SAMPLING_FEATURE_NAME":"L2","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH922775","BOREHOLE_TOP_DEPTH_M":139.3,"BOREHOLE_BASE_DEPTH_M":139.6,"GEOLOGICAL_PROVINCE":"Thomson Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-30.802657,"LONG_GDA94":145.194924,"ELEV_M_AHD":132,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Electrolytic Zinc Co of Australasia","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"68823; 69002","AGE_REF":"Glen, R.A., Korsch, R.J., Hegarty, R., Saeed, A., Djomani, Y.P., Costelloe, R.D., Belousova, E.A., 2013. Geodynamic significance of the boundary between the Thomson Orogen and the Lachlan Orogen, northwestern New South Wales and implications for Tasmanide tectonics. Australian Journal of Earth Sciences, 60(3), 371-412.; Glen, R.A., Saeed, A., Hegarty, R., Percival, I.G., Bodorkos, S., Griffin, W.L., 2010. Preliminary zircon data and tectonic framework for the Thomson Orogen, northwestern NSW. Geological Survey of New South Wales, Report, GS, 2010/0379, 26pp + map.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099.2013.782899; https://search.geoscience.nsw.gov.au/report/R00036358","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14656","geometry":{"type":"Point","coordinates":[145.108745,-30.616406]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14656,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677758","IGSN":"10.60494/zxn0-9c93","SAMPLENO":9677758,"SAMPLE_ID":"Louth B LOUB","AGE_MA":485.1,"AGE_MA_UNCERTAINTY":7.4,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.62,"NUMBER_OF_ANALYSES":3,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"Macquarie University","AGE_INTERPRETED_FROM_SOURCE":"maximum depositional age (sedimentary)","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"A plot of concordant grains between 680 and 480 Ma shows one reset grain, and three populations spread along the concordia line. A weighted mean of the three youngest concordant ages is 485.1 +/- 7.4 Ma suggests a time gap between 15 and 30 million years between crystallization of youngest zircons in the early Ordovician and deposition in the late Ordovician.","AGE_SOURCE":"MinView/Original publications","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"Louth B sandstone in quartz turbidite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"siliciclastic sedimentary rock","LITHOLOGY":"turbidite","MODE_OF_OCCURRENCE":"bed","SAMPLE_TYPE":"core","SAMPLE_DESC":"Meta-Siliciclastic sedimentary rock. Turbidic. Glen et al 2010 paraphrased: \"Thin-bedded, quartz-rich turbidites in Louth DH 5 contain Late Ordovician graptolites in the shaley beds. These turbidites appear to be in fault contact with the volcanic package. Brunker (1968) suggested these were Late Ordovician (Gisbornian) in age, based on identifications of Climacograptus sp and Dicellograptus sp by J. W. Pickett, though Pickett (1965) wrote that ‘these two genera occur most abundantly in the Gisbornian of Victoria and their overlap in ranges is equally supportive of an Eastonian age’. More graptolites were found on recent core inspections but these were unidentifiable fragments. Glen et al 2013: Thin-bedded, quartz-rich turbidites occur in drillhole Louth DH5 (dark grey shales from 680-720 feet). Sandstone-siltstone in the turbidites is thin-bedded with B and C bouma divisions.\"","SAMPLING_FEATURE_NAME":"L5","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH896678","BOREHOLE_TOP_DEPTH_M":214,"BOREHOLE_BASE_DEPTH_M":215,"GEOLOGICAL_PROVINCE":"Thomson Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-30.616406,"LONG_GDA94":145.108745,"ELEV_M_AHD":98,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Electrolytic Zinc Co of Australasia","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"68823; 69002","AGE_REF":"Glen, R.A., Korsch, R.J., Hegarty, R., Saeed, A., Djomani, Y.P., Costelloe, R.D., Belousova, E.A., 2013. Geodynamic significance of the boundary between the Thomson Orogen and the Lachlan Orogen, northwestern New South Wales and implications for Tasmanide tectonics. Australian Journal of Earth Sciences, 60(3), 371-412.; Glen, R.A., Saeed, A., Hegarty, R., Percival, I.G., Bodorkos, S., Griffin, W.L., 2010. Preliminary zircon data and tectonic framework for the Thomson Orogen, northwestern NSW. Geological Survey of New South Wales, Report, GS, 2010/0379, 26pp + map.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099.2013.782899; https://search.geoscience.nsw.gov.au/report/R00036358","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14655","geometry":{"type":"Point","coordinates":[143.589151,-30.460112]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14655,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677759","IGSN":"10.60494/cxax-e548","SAMPLENO":9677759,"SAMPLE_ID":"F16/373 Klondyke","AGE_MA":503,"AGE_MA_UNCERTAINTY":6,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":1,"CALCULATION_TYPE":"single analysis","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"Macquarie University","AGE_INTERPRETED_FROM_SOURCE":"maximum depositional age of the Warratta Group at this locality","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"The youngest four grains have a moderately well-defined mean age of 532 +/- 13 Ma; an older population of four grains has mean age of 597 +/- 6.8 Ma; and a third population with a mean age 631 +/- 7.5 Ma. All three mean ages are older than the inferred maximum depositional age of the rock, inferred to be <500 Ma Delamerian Orogeny. The youngest concordant grain has an age of 503 +/- 6 Ma and a discordance of only 1.6%, and may provide the maximum depositional age of the Warratta Group at this locality. Drillhole misnamed and mislocated in text of Glen et al. (2010, 2013), but correctly depicted on maps.","AGE_SOURCE":"MinView/Original publications","PROJECT":null,"STRATNO":73409,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU73409","STRAT_UNIT_NAME":"Warratta Group","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Warratta Group","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"medium-coarse grained siliciclastic rock","LITHOLOGY":"sandstone","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Glen et al 2013: Extension of the Waratta Group in two structural belts southeast of Tibooburra, beneath recent cover is based on the interpretation of aeromagnetic data, specifically the presence of numerous narrow trends of high magnetic intensity (Hegarty 2010). Farther east, identification of the Warratta Group becomes complicated by attenuation of an onlapping and/or faulted layer of younger non-magnetic sedimentary rocks, possibly Winduck Group of the Cobar Supergroup. Because of this masking effect, small patches of near-surface magnetic basement along a curved northwest trend (with a moderate magnetic intensity, higher than the low magnetic character of the surrounding ?Winduck Group, and a longer wavelength component which indicates that their sources are more extensive and continuous at depth under cover) were labelled as belonging to a Tilpa association or Tongo association. A sample of sandstone from the eastern part of the Warratta Group was supplied for zircon analysis by Minotaur Exploration. Sample F16/373 (Klondyke) is a cleaved, very fine-to fine-grained sandstone from Minotaur Resources drillhole F16RMD08-01 at a depth of 373-374 m.","SAMPLING_FEATURE_NAME":"F16RD0802","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH599496","BOREHOLE_TOP_DEPTH_M":373,"BOREHOLE_BASE_DEPTH_M":374,"GEOLOGICAL_PROVINCE":"Thomson Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-30.460112,"LONG_GDA94":143.589151,"ELEV_M_AHD":105,"ACCURACY_M":1000,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Minotaur Exploration Ltd","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"68823; 69002","AGE_REF":"Glen, R.A., Korsch, R.J., Hegarty, R., Saeed, A., Djomani, Y.P., Costelloe, R.D., Belousova, E.A., 2013. Geodynamic significance of the boundary between the Thomson Orogen and the Lachlan Orogen, northwestern New South Wales and implications for Tasmanide tectonics. Australian Journal of Earth Sciences, 60(3), 371-412.; Glen, R.A., Saeed, A., Hegarty, R., Percival, I.G., Bodorkos, S., Griffin, W.L., 2010. Preliminary zircon data and tectonic framework for the Thomson Orogen, northwestern NSW. Geological Survey of New South Wales, Report, GS, 2010/0379, 26pp + map.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099.2013.782899; https://search.geoscience.nsw.gov.au/report/R00036358","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14698","geometry":{"type":"Point","coordinates":[144.654084,-33.3720845]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14698,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677760","IGSN":"10.60494/pt4d-qb93","SAMPLENO":9677760,"SAMPLE_ID":"Mossgiel No.1-1785 m","AGE_MA":427,"AGE_MA_UNCERTAINTY":7,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.99,"NUMBER_OF_ANALYSES":10,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"crystallisation age of the granite","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication","PROJECT":null,"STRATNO":38897,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU38897","STRAT_UNIT_NAME":"Mossgiel Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Mossgiel granite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Wilde 2000 paraphrased \" The rock which the sample was extracted from was unfoliated melanocratic and high-character s-type granite. The zircons are clear, colourless to plae pink, with an elogate shape and a length to width ratio of up to 5:1. Long fluid incursions are common and many grains are broken (probably during crushing). \"","SAMPLING_FEATURE_NAME":"Mossgiel DDH 1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH454427","BOREHOLE_TOP_DEPTH_M":1785,"BOREHOLE_BASE_DEPTH_M":1785,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-33.3720845,"LONG_GDA94":144.654084,"ELEV_M_AHD":90,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-04-01","SAMPLE_ORIGINATOR":"Alder, D.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75759","AGE_REF":"Wilde, S.A., 2000, SHRIMP U-Pb dating of four granite samples from the Wilkurra no.1 and Mossgiel no.1 Boreholes, NSW. Geological Survey of New South Wales Report GS, 2006/158.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/report/R00041350","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14649","geometry":{"type":"Point","coordinates":[141.68801042,-32.35143145]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14649,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677761","IGSN":"10.60494/kv27-0p89","SAMPLENO":9677761,"SAMPLE_ID":"VP006/007","AGE_MA":417,"AGE_MA_UNCERTAINTY":3.6,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":0.71,"NUMBER_OF_ANALYSES":28,"CALCULATION_TYPE":"anchored discordia","GEOLOGICAL_EVENT":"deformation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Titanite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Thermo Scientific iCAP-RQ","LABORATORY_NAME":"James Cook University","AGE_INTERPRETED_FROM_SOURCE":"deformation or burial metamorphic events","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"All titanite samples in this analysis contained common lead, therefore the data was discordant and required common lead correction before plotting. Ages are Pb anchored model-1 discordia intercept ages.","AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"sampled from NBH004 @ 159-170 d","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"basic volcanic rock","LITHOLOGY":"basalt","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Perry paraphrased: sample VP006 - This rock is a dark grey to black, generally fine-grained basalt however some intervals appear to be more medium-grained. Sulfide veining and alteration observed throughout. Thin section - Fine-grained basalt with interlocking plagioclase laths and clinopyroxene grains (commonly <0.5 mm) that have experienced quartz-biotite-actinolite alteration. Opaques are present throughout, as well as secondary turquoise-blue amphibole and secondary brown biotite. Sample VP007 - Dark grey to black,fine-grained basalt with some intervals appearing more medium-grained and lighter in colour due to greater alteration. Overall, this sample appears strongly altered, disseminated opaques with white halos. Thin section - Similar mineralogy and texture to VP006, however, more strongly altered. Unidentified orange to red, slightly pleochroic alteration product throughout and occurs with secondary blue-green amphibole. Opaques surrounded by this alteration assemblage.","SAMPLING_FEATURE_NAME":"NBH004","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH817055","BOREHOLE_TOP_DEPTH_M":159,"BOREHOLE_BASE_DEPTH_M":170,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.3514314471,"LONG_GDA94":141.6880104248,"ELEV_M_AHD":119,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75278","AGE_REF":"Perry, V.E., 2021, Geochemistry of the Loch Lilly-Kars volcanics and correlation along the Tasman Line, Eastern Australia. [Honours thesis, unpublished]. University of Newcastle, NSW.","AGE_PUBLICATION_LINKS":"Not Recorded","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14121","geometry":{"type":"Point","coordinates":[151.35,-31.56]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14121,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655581","IGSN":"10.60494/rmwp-h951","SAMPLENO":9655581,"SAMPLE_ID":"BS25","AGE_MA":413,"AGE_MA_UNCERTAINTY":8.7,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.66,"NUMBER_OF_ANALYSES":3,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"magmatic age of Gamilaroi terrane tronhjemite","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"Gamilaroi terrane tronhjemite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"trondhjemite","MODE_OF_OCCURRENCE":"pluton","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Manton et al 2017 paraphrased: \"Texturally the felsic intrusive rocks of the Gamilaroi terrane are relatively uniform; fine-grained and equigranular with the groundmass consisting of quartz, feldspar, chlorite, epidote.The yield of zircons from the Gamilaroi terrane trondhjemite was surprisingly low. The sample yielded 4 zircons from roughly 2 kg of rock. Two of these grains were judged too recrystallized to warrant study and hence 2 analyses each were undertaken on two grains.\"","SAMPLING_FEATURE_NAME":"BS25","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917414","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"New England Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-31.56,"LONG_GDA94":151.35,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Manton, R.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73440","AGE_REF":"Manton, R.J., Buckman, S., Nutman, A.P., Bennett, V.C., 2017. Exotic island arc Paleozoic terranes on the eastern margin of Gondwana: Geochemical whole rock and zircon U-Pb-Hf isotope evidence from Barry Station, New South Wales, Australia. Lithos, 286-287, 125-150.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.lithos.2017.06.002","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14383","geometry":{"type":"Point","coordinates":[150.8693126,-31.5769168]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14383,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655582","IGSN":"10.60494/apcc-yr73","SAMPLENO":9655582,"SAMPLE_ID":"501-4","AGE_MA":351.7,"AGE_MA_UNCERTAINTY":3.2,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"age of volcanism","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":70490,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU70490","STRAT_UNIT_NAME":"Isismede Ignimbrite Member","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Isismede Ignimbrite, from Wallabadah district","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous volcanic rock","LITHOLOGY":"ignimbrite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Roberts et al 2006 paraphrased \"Pale-red, unwelded, ignimbrite containing scattered (5 - 10%), fine to coarse phenocrysts (up to 2.5 mm in length) of plagioclase, opaque minerals, and +/- minor hornblende and quartz. Pumice fragments have flow-foliated and vesicle-rich textures. Volcanic rock fragments rare. Shards undeformed, frequently broken, commonly triaxons and randomly to moderately well oriented; vesicles common and slightly deformed. Groundmass normally a chlorite - zeolite mosaic; micropoikilitic at locality of sample 502-1 southeast of Wallabadah, close to an andesite sill.\"","SAMPLING_FEATURE_NAME":"501-4","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917355","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"New England Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-31.5769168,"LONG_GDA94":150.8693126,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Roberts, J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"62095","AGE_REF":"Roberts, J., Offler, R., Fanning, M., 2006. Carboniferous to Lower Permian stratigraphy of the southern Tamworth Belt, southern New England Orogen, Australia: boundary sequences of the Werrie and Rouchel Blocks. Australian Journal of Earth Sciences, 53(2), 249-284.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120090500499263","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14070","geometry":{"type":"Point","coordinates":[151.32,-31.58]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14070,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655583","IGSN":"10.60494/mjm5-5848","SAMPLENO":9655583,"SAMPLE_ID":"BS26","AGE_MA":504.8,"AGE_MA_UNCERTAINTY":3.4,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.55,"NUMBER_OF_ANALYSES":18,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation of Weraerai terrane gabbro","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"Mafic Weraerai terrane - gabbro","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"basic intrusive rock","LITHOLOGY":"gabbro","MODE_OF_OCCURRENCE":"pluton","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Manton et al 2017 paraphrased: \"Composite samples for the Weraerai terrane gabbro (BS26) and felsic inclusions (BS27) were employed, to increase the chances of a higher zircon yield.The Weraerai Gabbro suit has a tholeiitic to minor calc-alkaline affinity. The sample gave a small yield of stubby prismatic zircons with well-preserved oscillatory zoning. \"","SAMPLING_FEATURE_NAME":"BS26","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917415","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"New England Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-31.58,"LONG_GDA94":151.32,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73440","AGE_REF":"Manton, R.J., Buckman, S., Nutman, A.P., Bennett, V.C., 2017. Exotic island arc Paleozoic terranes on the eastern margin of Gondwana: Geochemical whole rock and zircon U-Pb-Hf isotope evidence from Barry Station, New South Wales, Australia. Lithos, 286-287, 125-150.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.lithos.2017.06.002","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14245","geometry":{"type":"Point","coordinates":[141.367249,-31.614724]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14245,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655584","IGSN":"10.60494/xdaz-t335","SAMPLENO":9655584,"SAMPLE_ID":"BH033","AGE_MA":1570,"AGE_MA_UNCERTAINTY":18,"AGE_CONFIDENCE_LEVEL":"1 standard deviation","AGE_MSWD":null,"NUMBER_OF_ANALYSES":6,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"metamorphism","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Monazite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP RG","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"prograde metamorphism","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":14860,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU14860","STRAT_UNIT_NAME":"Paragon Group","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Eldee area, Paragon Group","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"foliated metamorphic rock","LITHOLOGY":"schist","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"McFarlane and Frost, 2009 paraphrased \"The sample was a representative of amphibolite facies pelitic schist and was a muscovite-biotite schist that contains large variably retrogressed porphyroblasts of andalusite. Andalusite is strongly poikiloblastic and, where fresh material is preserved, contains abundant inclusions of ilmenite, plagioclase, monazite and apatite. Ovoid inclusions of chlorite-rich pseudomorphs are also present in andalusite.\"","SAMPLING_FEATURE_NAME":"BH033","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917409","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Curnamona Province","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-31.614724,"LONG_GDA94":141.367249,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"McFarlane, C.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"64847","AGE_REF":"McFarlane, C.R.M., Frost, B.R., 2009. Constraints on the early metamorphic evolution of Broken Hill, Australia, from in situ U-Pb dating and REE geochemistry of monazite. Journal of Metamorphic Geology, 27(1), 3-17.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1111/j.1525-1314.2008.00801.x","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14107","geometry":{"type":"Point","coordinates":[151.4399,-31.6423]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14107,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655585","IGSN":"10.60494/et1f-mr02","SAMPLENO":9655585,"SAMPLE_ID":"SC1 and RO/RB29","AGE_MA":444.7,"AGE_MA_UNCERTAINTY":2.4,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":1.2,"NUMBER_OF_ANALYSES":35,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: unknown model","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: unknown model","LABORATORY_NAME":"Macquarie University","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallization","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Combined age of two rocks (SC1+RO/RB29) yields 444.7+/-2.4 Ma","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"tectonic blocks in serpentinite melange, Weraerai Terrane, Peel-Manning Fault System","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"basic intrusive rock","LITHOLOGY":"gabbro","MODE_OF_OCCURRENCE":"block","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Hornblende gabbro. Offler and Shaw 2006 paraphrased \"Analyses were conducted on a deformed and partly recrystallized hornblende gabbro tectonic block in a serpentinite melange, Glenrock Station area. The hornblende gabbro samples collected from various outcrops show considerable variation in mineralogy and texture owing to the deformation and associated alteration that have affected the gabbro and the dikes after their emplacement. Magmatic plagioclase is preserved in most samples, but the mafic minerals are commonly replaced by several generations of amphiboles that have different compositions reflecting the varying conditions (upper amphibolite to prehnite-pumpellyite facies) under which they have formed. Amphiboles of possible magmatic origin show no preferred orientation, replace clinopyroxene (uncommon), and are replaced by metamorphic amphiboles. Many zircon grains show broad bands of dark and light zoning that traverse the grain. The zircons were elobngated and were anhedral to fragmented.\"","SAMPLING_FEATURE_NAME":"SC1 and RO/RB29","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917563","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"New England Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-31.6423,"LONG_GDA94":151.4399,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Offler, R.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75832","AGE_REF":"Offler, R., Shaw, S., 2006, Hornblende Gabbro Block in Serpentinite Mélange, Peel‐Manning Fault System, New South Wales, Australia: Lu‐Hf and U‐Pb Isotopic Evidence for Mantle‐Derived, Late Ordovician Igneous Activity. Journal of Geology, 114(2).","AGE_PUBLICATION_LINKS":"https://doi.org/10.1086/499572","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14139","geometry":{"type":"Point","coordinates":[151.9784,-31.6537]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14139,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655586","IGSN":"10.60494/sxhn-3r83","SAMPLENO":9655586,"SAMPLE_ID":"MG-14-012","AGE_MA":285.9,"AGE_MA_UNCERTAINTY":5.7,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.17,"NUMBER_OF_ANALYSES":5,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"U/Pb not reported","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: unknown model","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 8800","LABORATORY_NAME":"University of Queensland","AGE_INTERPRETED_FROM_SOURCE":"age constraint for deposition","OTHER_AGE_INTERPRETED_FROM_SOURCE":"288.5 +/- 2.1 Ma","AGE_REMARK_FROM_SOURCE":"Combined detrital zircon ages of sedimentary samples MG-14-11, MG-14-12, MG-14-15, MG-14-18: 288.5 +- 2.1 Ma (MSWD = 0.21, n = 33)","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Giro beds","UNIT_NAME_SOURCE":"Giro Diamictite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"medium-coarse grained siliciclastic rock","LITHOLOGY":"sandstone","MODE_OF_OCCURRENCE":"bed","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"White et al 2016 paraphrased: \"The Giro Damictite is a massive pebbly mudstone/fine-grained siltstone (or diamictite) with uncommon massive, bedded or turbidite sandstones, siltstones, and pebble conglomerates. Sheared serpentinite clastswere observed within. Zircons with","SAMPLING_FEATURE_NAME":"MG-14-012","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917475","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"New England Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-31.6537,"LONG_GDA94":151.9784,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"White, L.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75838","AGE_REF":"White, L., Rosenbaum, G., Allen, C.M., Shaanan, U., 2016. Orocline-driven transtensional basins: Insights from the Lower Permian Manning Basin (eastern Australia). Tectonics, 35(3), 690-703.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1002/2015TC004021","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14301","geometry":{"type":"Point","coordinates":[151.8089,-31.6561]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14301,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655587","IGSN":"10.60494/201w-3869","SAMPLENO":9655587,"SAMPLE_ID":"MG-14-011","AGE_MA":289.5,"AGE_MA_UNCERTAINTY":3.7,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.119,"NUMBER_OF_ANALYSES":7,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"U/Pb not reported","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: unknown model","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 8800","LABORATORY_NAME":"University of Queensland","AGE_INTERPRETED_FROM_SOURCE":"age constraint for deposition","OTHER_AGE_INTERPRETED_FROM_SOURCE":"288.5 +/- 2.1 Ma","AGE_REMARK_FROM_SOURCE":"Combined detrital zircon ages of sedimentary samples MG-14-11, MG-14-12, MG-14-15, MG-14-18: 288.5 +- 2.1 Ma (MSWD = 0.21, n = 33)","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Giro beds","UNIT_NAME_SOURCE":"Giro Diamictite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"siliciclastic sedimentary rock","LITHOLOGY":"diamictite","MODE_OF_OCCURRENCE":"bed","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"White et al 2016 paraphrased: \"The Giro Damictite is a massive pebbly mudstone/fine-grained siltstone (or diamictite) with uncommon massive, bedded or turbidite sandstones, siltstones, and pebble conglomerates. Sheared serpentinite clastswere observed within. Zircons with","SAMPLING_FEATURE_NAME":"MG-14-011","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917474","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"New England Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-31.6561,"LONG_GDA94":151.8089,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"White, L.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75838","AGE_REF":"White, L., Rosenbaum, G., Allen, C.M., Shaanan, U., 2016. Orocline-driven transtensional basins: Insights from the Lower Permian Manning Basin (eastern Australia). Tectonics, 35(3), 690-703.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1002/2015TC004021","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14435","geometry":{"type":"Point","coordinates":[150.9344904,-31.6673362]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14435,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655588","IGSN":"10.60494/0ssw-jv85","SAMPLENO":9655588,"SAMPLE_ID":"456-13A","AGE_MA":343,"AGE_MA_UNCERTAINTY":3,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"age of volcanism","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":70469,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU70469","STRAT_UNIT_NAME":"Burnewang Ignimbrite Member","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Burnewang Ignimbrite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous volcanic rock","LITHOLOGY":"ignimbrite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Roberts et al 2006 paraphrased \"Bright-red, unwelded ignimbrite containing scattered (5-10%), fine to coarse (up to 2.5 mm in length) phenocrysts of plagioclase, minor quartz, minor biotite and opaque minerals. Pumice fragments generally small, elongate laths or lenticles with a fibrous or vesicle-rich texture. Rock fragments rare, mostly fine-grained devitrified volcanics but at times coarser ignimbrites. Shards and vesicles abundant, undeformed to slightly compressed and normally well oriented; triaxons common. Groundmass a fine mosaic of chlorite and zeolite.\"","SAMPLING_FEATURE_NAME":"456-13A","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917345","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"New England Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-31.6673362,"LONG_GDA94":150.9344904,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Roberts, J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"62095","AGE_REF":"Roberts, J., Offler, R., Fanning, M., 2006. Carboniferous to Lower Permian stratigraphy of the southern Tamworth Belt, southern New England Orogen, Australia: boundary sequences of the Werrie and Rouchel Blocks. 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Pumice fragments large, lensoidal, coarsely recrystallised or spherulitic. Rock fragments (up to 14 mm) mainly fine devitrified ignimbrites. Shards thick, flattened, strongly aligned. Vesicles almost flat. Groundmass chloritic to partially micropoikilitic.\"","SAMPLING_FEATURE_NAME":"466-15","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917346","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"New England Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-31.6947665,"LONG_GDA94":150.9080481,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Roberts, J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"62095","AGE_REF":"Roberts, J., Offler, R., Fanning, M., 2006. Carboniferous to Lower Permian stratigraphy of the southern Tamworth Belt, southern New England Orogen, Australia: boundary sequences of the Werrie and Rouchel Blocks. Australian Journal of Earth Sciences, 53(2), 249-284.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120090500499263","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14276","geometry":{"type":"Point","coordinates":[150.7883957,-31.6968684]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14276,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655590","IGSN":"10.60494/ecx0-2y86","SAMPLENO":9655590,"SAMPLE_ID":"493-3","AGE_MA":311.5,"AGE_MA_UNCERTAINTY":2.9,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"age of volcanism","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":70446,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU70446","STRAT_UNIT_NAME":"Allawa Ignimbrite Member","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Allawa Ignimbrite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous volcanic rock","LITHOLOGY":"ignimbrite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Roberts et al 2006 paraphrased \"Beige unwelded ignimbrite with small (up to 1.5 mm) phenocrysts (16%: Kelk 1986) of plagioclase, K-feldspar, quartz, minor biotite and opaque minerals. Pumice fragments uncommon, small, elongate, lamellar and recrystallised. Rock fragments beige and ferruginised, fine-grained volcanics. Shards slender, randomly oriented; triaxons common. Vesicles slightly flattened but normally broken. Groundmass micropoikilitic. Kelk (1986) described the member as being crystal-rich and partially to completely welded, but variable along strike.\"","SAMPLING_FEATURE_NAME":"493-3","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917353","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"New England Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-31.6968684,"LONG_GDA94":150.7883957,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Roberts, J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"62095","AGE_REF":"Roberts, J., Offler, R., Fanning, M., 2006. Carboniferous to Lower Permian stratigraphy of the southern Tamworth Belt, southern New England Orogen, Australia: boundary sequences of the Werrie and Rouchel Blocks. Australian Journal of Earth Sciences, 53(2), 249-284.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120090500499263","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14394","geometry":{"type":"Point","coordinates":[152.407,-31.6979]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14394,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655591","IGSN":"10.60494/t3h2-a222","SAMPLENO":9655591,"SAMPLE_ID":"MG-14-006","AGE_MA":357.6,"AGE_MA_UNCERTAINTY":4.4,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.66,"NUMBER_OF_ANALYSES":13,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"U/Pb not reported","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: unknown model","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 8800","LABORATORY_NAME":"University of Queensland","AGE_INTERPRETED_FROM_SOURCE":"primary zircon age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"The sedimentary sequence, in which sample MG-14-006 is interbedded, must be older and is not a part of the Manning Basin. The confining sedimentary sequence likely represents a section of the adjacent Upper Devonian to Carboniferous fore-arc basin.","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"andesitic sample","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate volcanic rock","LITHOLOGY":"andesite","MODE_OF_OCCURRENCE":"lava flow","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"White et al 2016 paraphrased: \"This sample was taken from an interbedded andesitic lava flow. \"","SAMPLING_FEATURE_NAME":"MG-14-006","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917473","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"New England Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-31.6979,"LONG_GDA94":152.407,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"White, L.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75838","AGE_REF":"White, L., Rosenbaum, G., Allen, C.M., Shaanan, U., 2016. Orocline-driven transtensional basins: Insights from the Lower Permian Manning Basin (eastern Australia). Tectonics, 35(3), 690-703.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1002/2015TC004021","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14327","geometry":{"type":"Point","coordinates":[150.7991645,-31.7076524]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14327,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655592","IGSN":"10.60494/65ny-0j47","SAMPLENO":9655592,"SAMPLE_ID":"493-9","AGE_MA":308.9,"AGE_MA_UNCERTAINTY":2.8,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"age of volcanism","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":70450,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU70450","STRAT_UNIT_NAME":"Kankool Ignimbrite Member","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Kankool Ignimbrite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous volcanic rock","LITHOLOGY":"ignimbrite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Roberts et al 2006 paraphrased \"Beige, unwelded ignimbrite with fine to medium (<0.5 - 1.5 mm, rarely 2 mm) phenocrysts (~15%) of plagioclase, quartz, biotite and opaque minerals. Pumice small, mostly thin, elongate and lamellar or fibrous, others thicker with spherulitic to fibrous recrystallisation. Rock fragments fine-grained, ferruginous volcanics, some with feldspars. Shards slender, some triaxons, and poorly oriented; vesicles rare. Groundmass micropoikilitic.\"","SAMPLING_FEATURE_NAME":"493-9","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917354","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"New England Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-31.7076524,"LONG_GDA94":150.7991645,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Roberts, J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"62095","AGE_REF":"Roberts, J., Offler, R., Fanning, M., 2006. Carboniferous to Lower Permian stratigraphy of the southern Tamworth Belt, southern New England Orogen, Australia: boundary sequences of the Werrie and Rouchel Blocks. Australian Journal of Earth Sciences, 53(2), 249-284.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120090500499263","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14273","geometry":{"type":"Point","coordinates":[150.115026,-31.733316]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14273,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655594","IGSN":"10.60494/9j70-qy42","SAMPLENO":9655594,"SAMPLE_ID":"BS27","AGE_MA":503.2,"AGE_MA_UNCERTAINTY":5.7,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.4,"NUMBER_OF_ANALYSES":11,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation of Weraerai terrane plagiogranite","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"Felsic Weraerai terrane - plagiogranite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":"pluton","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Manton et al 2017 paraphrased: \"Composite samples for the Weraerai terrane gabbro (BS26) and felsic inclusions (BS27) were employed, to increase the chances of a higher zircon yield.The sample was extraxted from Weraerai terrane plagiogranite which gave a small yield of oscillatory zoned prismatic to equant zircon devoid of inherited cores and structural overgrowths.\"","SAMPLING_FEATURE_NAME":"BS27","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917416","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"New England Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-31.733316,"LONG_GDA94":150.115026,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73440","AGE_REF":"Manton, R.J., Buckman, S., Nutman, A.P., Bennett, V.C., 2017. Exotic island arc Paleozoic terranes on the eastern margin of Gondwana: Geochemical whole rock and zircon U-Pb-Hf isotope evidence from Barry Station, New South Wales, Australia. Lithos, 286-287, 125-150.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.lithos.2017.06.002","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14434","geometry":{"type":"Point","coordinates":[150.9579226,-31.740538]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14434,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655595","IGSN":"10.60494/aprq-gt83","SAMPLENO":9655595,"SAMPLE_ID":"287-2A","AGE_MA":290.5,"AGE_MA_UNCERTAINTY":2.8,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"age of volcanism","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":70467,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU70467","STRAT_UNIT_NAME":"Brogans Rhyodacite Member","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Brogans Rhyodacite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid volcanic rock","LITHOLOGY":"rhyodacite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Roberts et al 2006 paraphrased \"A pink rhyodacite lava containing scattered medium to coarse (up to 4 mm) phenocrysts (10%) of plagioclase, rare quartz and biotite, fine-grained, irregular accumulations of chalcedony and opaque minerals. The groundmass has fine, slender, felted plagioclase laths and small irregular areas of chalcedony. Uppermost part with foliated, contorted and broken folds. Foliation in the folds varies from fine to coarse (up to 4 mm thick), the bands being delineated by accumulations of thin or globular pumice fragments or accumulations of opaque minerals overlain by fibrous crystals of zeolite and chlorite.\"","SAMPLING_FEATURE_NAME":"287-2A","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917344","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"New England Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-31.740538,"LONG_GDA94":150.9579226,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Roberts, J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"62095","AGE_REF":"Roberts, J., Offler, R., Fanning, M., 2006. Carboniferous to Lower Permian stratigraphy of the southern Tamworth Belt, southern New England Orogen, Australia: boundary sequences of the Werrie and Rouchel Blocks. Australian Journal of Earth Sciences, 53(2), 249-284.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120090500499263","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14170","geometry":{"type":"Point","coordinates":[150.9898373,-31.7606363]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14170,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655596","IGSN":"10.60494/vb9h-7c93","SAMPLENO":9655596,"SAMPLE_ID":"469-43","AGE_MA":327.4,"AGE_MA_UNCERTAINTY":3.7,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"age of volcanism","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":70514,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU70514","STRAT_UNIT_NAME":"Wheelihans Gap Ignimbrite Member","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Wheelihans Ignimbrite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous volcanic rock","LITHOLOGY":"ignimbrite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Roberts et al 2006 paraphrased: \"Fine, unwelded to slightly welded, grey, purple or beige ignimbrite with rare (55%) phenocrysts (1 - 1.5 mm) of plagioclase, minor quartz, and opaque minerals. Pumice fragments rare, thin laths oriented parallel with flow foliation of shards. Shards slender, undistorted to occasionally slightly flattened and normally aligned. Vesicles undistorted to slightly flattened. Groundmass micropoikilitic.\"","SAMPLING_FEATURE_NAME":"469-43","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917347","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"New England Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-31.7606363,"LONG_GDA94":150.9898373,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Roberts, J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"62095","AGE_REF":"Roberts, J., Offler, R., Fanning, M., 2006. Carboniferous to Lower Permian stratigraphy of the southern Tamworth Belt, southern New England Orogen, Australia: boundary sequences of the Werrie and Rouchel Blocks. Australian Journal of Earth Sciences, 53(2), 249-284.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120090500499263","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14382","geometry":{"type":"Point","coordinates":[151.0194111,-31.78916]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14382,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655597","IGSN":"10.60494/53vy-f761","SAMPLENO":9655597,"SAMPLE_ID":"472-1","AGE_MA":342.4,"AGE_MA_UNCERTAINTY":3.3,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"age of volcanism","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":70469,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU70469","STRAT_UNIT_NAME":"Burnewang Ignimbrite Member","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Burnewang Ignimbrite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous volcanic rock","LITHOLOGY":"ignimbrite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Roberts et al 2006 paraphrased \"Bright-red, unwelded ignimbrite containing scattered (5 - 10%), fine to coarse (up to 2.5 mm in length) phenocrysts of plagioclase, minor quartz, minor biotite and opaque minerals. Pumice fragments generally small, elongate laths or lenticles with a fibrous or vesicle-rich texture. Rock fragments rare, mostly fine-grained devitrified volcanics but at times coarser ignimbrites. Shards and vesicles abundant, undeformed to slightly compressed and normally well oriented; triaxons common. Groundmass a fine mosaic of chlorite and zeolite.\"","SAMPLING_FEATURE_NAME":"472-1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917349","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"New England Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-31.78916,"LONG_GDA94":151.0194111,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Roberts, J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"62095","AGE_REF":"Roberts, J., Offler, R., Fanning, M., 2006. Carboniferous to Lower Permian stratigraphy of the southern Tamworth Belt, southern New England Orogen, Australia: boundary sequences of the Werrie and Rouchel Blocks. Australian Journal of Earth Sciences, 53(2), 249-284.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120090500499263","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14275","geometry":{"type":"Point","coordinates":[151.0374361,-31.7942016]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14275,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655598","IGSN":"10.60494/1r3w-nw85","SAMPLENO":9655598,"SAMPLE_ID":"470-13","AGE_MA":352.4,"AGE_MA_UNCERTAINTY":3.2,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"age of volcanism","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":70490,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU70490","STRAT_UNIT_NAME":"Isismede Ignimbrite Member","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Isismede Ignimbrite, from Green Isis","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous volcanic rock","LITHOLOGY":"ignimbrite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Roberts et al 2006 paraphrased \"Pale-red, unwelded, ignimbrite containing scattered (5 - 10%), fine to coarse phenocrysts (up to 2.5 mm in length) of plagioclase, opaque minerals and, at one locality each, minor hornblende and quartz. Pumice fragments have flow-foliated and vesicle-rich textures. Volcanic rock fragments rare. Shards undeformed, frequently broken, commonly triaxons and randomly to moderately well oriented; vesicles common and slightly deformed. Groundmass normally a chlorite - zeolite mosaic. At Green Isis the ignimbrite contains interbeds of fine- to medium grained resedimented volcanolithic sandstone.\"","SAMPLING_FEATURE_NAME":"470-13","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917348","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"New England Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-31.7942016,"LONG_GDA94":151.0374361,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Roberts, J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"62095","AGE_REF":"Roberts, J., Offler, R., Fanning, M., 2006. Carboniferous to Lower Permian stratigraphy of the southern Tamworth Belt, southern New England Orogen, Australia: boundary sequences of the Werrie and Rouchel Blocks. Australian Journal of Earth Sciences, 53(2), 249-284.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120090500499263","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14288","geometry":{"type":"Point","coordinates":[141.761153,-32.239917]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14288,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655628","IGSN":"10.60494/sntn-zg86","SAMPLENO":9655628,"SAMPLE_ID":"95BH15","AGE_MA":2654,"AGE_MA_UNCERTAINTY":16,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP I","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"crystallisation of Archaean basement rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":"Possible that all zircons are inherited","AGE_REMARK_FROM_SOURCE":"The gneiss could be an Archaean basement rock, affected by several Proterozoic tectonothermal events. An alternative interpretation is that all its zircons are inherited and it is a Palaeoproterozoic supracrustal rock. Age populations were obtained predominantly 2670-2550 Ma, lesser 2400, 2100 and rare ca 1950 and ca 1812 Ma","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":35525,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU35525","STRAT_UNIT_NAME":"Farmcote Gneiss","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Farmcote Gneiss","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"foliated metamorphic rock","LITHOLOGY":"gneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"A layered quartzo-feldspathic amphibolite facies gneiss from the Willyama Supergroup (southern Broken Hill block). Nutman & Ehlers 1998 paraphrased \"The gneiss is fine to medium grained and consists of quartz, plagioclase and biotite, the bulk composition is trondhjemitic to tonalitic. Zircons in the Farmcote gneiss sample are prismatic to elongate-ovoid, yellow-brown in colour, euhedral to slightly rounded, and some show either micrometre-scale euhedral zoning or metamict areas. Most grains consist of only one generation of zircon. In some grains the euhedral zoning is more or less parallel to the exterior of the grains, while in others it appears that the grains have been resorbed or rounded such that the euhedral zoning is truncated. On others there appear to be very thin (a few micrometres thick) partial overgrowths, probably metamorphic in origin.\"","SAMPLING_FEATURE_NAME":"95BH15","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917393","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Curnamona Province","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.239917,"LONG_GDA94":141.761153,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Nutman, A.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"22641","AGE_REF":"Nutman, A.P., Ehlers, K., 1998. Archaean crust near Broken Hill?. Australian Journal of Earth Sciences, 45(5), 687-694.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099808728426","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14365","geometry":{"type":"Point","coordinates":[150.940052,-32.24273]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14365,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655629","IGSN":"10.60494/xwp6-jg51","SAMPLENO":9655629,"SAMPLE_ID":"Z1842","AGE_MA":268.9,"AGE_MA_UNCERTAINTY":2,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":null,"NUMBER_OF_ANALYSES":30,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"age of zircons which grew in the eruption of the volcanic unit","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":7798,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU7798","STRAT_UNIT_NAME":"Greta Coal Measures","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Upper Stage 4a part of the Greta Coal Measures","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous volcanic rock","LITHOLOGY":"tuff","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"field site specimen","SAMPLE_DESC":"Roberts et al 1996 paraphrased \"Sample Z1842 was collected from the Muswellbrook Coal Company No 2 Open Cut Highwall (GR 059308) 5.5 km northeast of Muswellbrook, at the northern end of the Muswellbrook Anticline. Stratigraphically the tuff is located 4 m above the Fleming Coal, 6 m below the lowermost Hilltop Coal (all Rowan Formation), and 11 m beneath the overlying Branxton Formation (J. Rogis pers. comm. 1993). Stratigraphic and palynofloral evidence (McMinn 1980) suggest that the tuff is within the Upper Stage 4a part of the Greta Coal Measures. The sample contains stubby, euhedral crystals, most with simple pyramidal terminations and small solid inclusions; about 10% of the grains have complex pyramidal terminations.\"","SAMPLING_FEATURE_NAME":"Muswellbrook Coal Company No. 2 Open Cut Highwall","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917488","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Sydney Basin","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.24273,"LONG_GDA94":150.940052,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"22601","AGE_REF":"Roberts, J., Claoue-Long, J.C., Foster, C.B., 1996. SHRIMP zircon dating of the Permian System of eastern Australia. Australian Journal of Earth Sciences, 43(4), 401-421.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099608728264","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14077","geometry":{"type":"Point","coordinates":[149.443905,-32.24702]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14077,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655630","IGSN":"10.60494/cg93-6j28","SAMPLENO":9655630,"SAMPLE_ID":"COSM0647","AGE_MA":415,"AGE_MA_UNCERTAINTY":11,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":1.3,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":"Z2785","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"magmatic age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Slightly skewed age population but all within uncertainty of 415 Ma, the interpreted magmatic age.","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":5845,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU5845","STRAT_UNIT_NAME":"Dungeree Volcanics","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Dungeree Volcanics","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous volcanic rock","LITHOLOGY":"crystal tuff","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Tuff and lapilli tuff near Tallawang magnetite mine. Meakin & Morgan 1999 paraphrased: \"The Dungeree Volcanics is comprised of thick sequences of rhyolite to dacite and auto clastic horizons, with lesser latite to trachyandesite lava. Other rock types include thick lenses of slate (mainly towards the top of the unit), interbeds or thick sequences of silicic to intermediate volcaniclastic sandstone, basement-· derived conglomerate, allochthonous to autochthonous limestone and limestone breccia. Deposition took place largely in the late Ludlow to Pridoli intervals. Depositional enviromnents for the Dungeree Volcanics were apparently somewhat varied: southern outcrops suggest a carbonate/ terrigenous slope environment influenced by a growing volcanic pile. Farther north, however, the formation appears to represent a thick shallow marine to emergent volcanic pile with fringing clastic and carbonate deposition, and adjacent slope areas.\"","SAMPLING_FEATURE_NAME":"COSM0647","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917424","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.24702,"LONG_GDA94":149.443905,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Meakin, N.S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"23170; 73848","AGE_REF":"Fanning, C.M., 1997, SHRIMP zircon U/Pb age dates for samples from the Dubbo 1:250 000 sheet area. Geological Survey of New South Wales, Report, 1997/590.; Meakin, N.S., Morgan, E.J., 1999. Dubbo 1:250 000 Geological Sheet SI/55-4: Explanatory Notes. Geological Survey of New South Wales, Sydney, 1v, 504p.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/product/453; https://search.geoscience.nsw.gov.au/report/R00034286","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14193","geometry":{"type":"Point","coordinates":[146.5526813,-32.2841581]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14193,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655631","IGSN":"10.60494/zhwj-k436","SAMPLENO":9655631,"SAMPLE_ID":"PB_11_NYM_02","AGE_MA":424.5,"AGE_MA_UNCERTAINTY":2.6,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"not reported","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"timing of magmatic event","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":25898,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU25898","STRAT_UNIT_NAME":"Erimeran Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Erimeran Granite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":"pluton","SAMPLE_TYPE":"unknown","SAMPLE_DESC":"Medium grained S-type granite","SAMPLING_FEATURE_NAME":"PB_11_NYM_02","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917550","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.2841581,"LONG_GDA94":146.5526813,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"70751","AGE_REF":"Downes, P.M., Blevin, P.L., Armstrong, R., Simpson, C.J., Sherwin, L., Tilley, D.B., Burton, G.R., 2016. Outcomes of the Nymagee mineral system study - an improved understanding of the timing of events and prospectivity of the central Lachlan Orogen. Geological Survey of New South Wales. Quarterly Notes, 147, 1-38.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/report/R00076225","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14131","geometry":{"type":"Point","coordinates":[149.674274,-32.289229]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14131,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655632","IGSN":"10.60494/8tj2-yw78","SAMPLENO":9655632,"SAMPLE_ID":"GURC0125","AGE_MA":323,"AGE_MA_UNCERTAINTY":7,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":0.51,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"simple age population, magmatic","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":32528,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU32528","STRAT_UNIT_NAME":"Ulan Quartz Monzonite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Ulan Granite - phase 1/Ulan Quartz Monzonite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":"pluton","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Medium to coarse-grained, sub-porphyritic granite. This sample is from the more deeply weathered ground level platforms and whaleback outcrops, seen adjacent to the Gulgong-Ulan railway (ie, Sandy Hollow railway). Meakin & Morgan 1999 paraphrased: \" Hand specimens from this pluton are usually a medium- to coarse-grained (megacrystic) mottled pink-grey sub-porphyritic quartz monzonjte with sporadic fine-grained dark grey enclaves. Smoky quartz is the predominant quartz variety, lending a pseudo-porphyritic texture to an otherwise pink-brown to red equigranular phase consisting primarily of K-feldspar in which there are occasional feldspar laths to 12 mm (K-feldspar > plagioclase), with accessory biotite, muscovite and other ferromagnesian minerals. Megacrystic phases are mottled red-brown and green-grey, equigranular to porphyritic. The feldspar megacrysts are occasionally euhedral. In thin section these phases are locally miarolitic megacrystic Kfeldspar muscovite-biolite-quartz monzonites to granities (subporphyritic in quartz) containing 15% to 25% quartz, 70% to 80% feldspar and 4% biotite. Accessory magnetite, apatile, zircon and fluorite are present. Alteration minerals include traces of chlorite, clay, sericite and fluorite with mild crushing (suturing and development of subgrains) evident. These rocks have a low magnetic susceptibility.\"","SAMPLING_FEATURE_NAME":"GURC0125","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917440","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.289229,"LONG_GDA94":149.674274,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Cameron, R.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"23170; 73848","AGE_REF":"Fanning, C.M., 1997, SHRIMP zircon U/Pb age dates for samples from the Dubbo 1:250 000 sheet area. Geological Survey of New South Wales, Report, 1997/590.; Meakin, N.S., Morgan, E.J., 1999. Dubbo 1:250 000 Geological Sheet SI/55-4: Explanatory Notes. 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Outcomes of the Nymagee mineral system study - an improved understanding of the timing of events and prospectivity of the central Lachlan Orogen. Geological Survey of New South Wales. 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SHRIMP zircon dating of the Permian System of eastern Australia. 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CL imaging showed that unzoned central domains were common, and about 3% of the grains contained small texturally discordant cores with concentric zoning.\"","SAMPLING_FEATURE_NAME":"HG03","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917444","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.422861,"LONG_GDA94":149.113773,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jeon, H.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75826","AGE_REF":"Jeon, H., Williams, I.S., 2018. Trace inheritance—Clarifying the zircon O-Hf isotopic fingerprint of I-type granite sources: Implications for the restite model. 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It intruded Silurian volcanic rocks (Dungeree Volcanics) and Mid to Late-Ordovician sedimentary rocks (Tucklan Formation). The zircons are medium to coarse (50-130 um diameter), highly turbid and cracked, pale milky yellow, subhedral grains with aspect ratios of up to 4. Very few apparent cores (< 3% of the grains) were found. Those cores were commonly brighter in CL than the zircon rims, and had oscillatory, parallel or sinuous zoning.\"","SAMPLING_FEATURE_NAME":"HG21","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917445","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.423478,"LONG_GDA94":149.678849,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jeon, H.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75826","AGE_REF":"Jeon, H., Williams, I.S., 2018. Trace inheritance—Clarifying the zircon O-Hf isotopic fingerprint of I-type granite sources: Implications for the restite model. 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Sheared serpentinite clastswere observed within. Zircons with","SAMPLING_FEATURE_NAME":"MG-14-015","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917476","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"New England Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-31.7988,"LONG_GDA94":152.013,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75838","AGE_REF":"White, L., Rosenbaum, G., Allen, C.M., Shaanan, U., 2016. Orocline-driven transtensional basins: Insights from the Lower Permian Manning Basin (eastern Australia). 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Pumice fragments have flow-foliated and vesicle-rich textures. Volcanic rock fragments rare. Shards undeformed, frequently broken, commonly triaxons and randomly to moderately well oriented; vesicles common and slightly deformed. Groundmass normally a chlorite - zeolite mosaic.\"","SAMPLING_FEATURE_NAME":"490-2","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917352","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"New England Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-31.8478799,"LONG_GDA94":151.0837027,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Roberts, J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"62095","AGE_REF":"Roberts, J., Offler, R., Fanning, M., 2006. 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Groundmass a chloritic and zeolitic mosaic.","SAMPLING_FEATURE_NAME":"488-16C","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917350","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"New England Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-31.8625244,"LONG_GDA94":151.0233916,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Roberts, J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"62095","AGE_REF":"Roberts, J., Offler, R., Fanning, M., 2006. Carboniferous to Lower Permian stratigraphy of the southern Tamworth Belt, southern New England Orogen, Australia: boundary sequences of the Werrie and Rouchel Blocks. 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This is the mean of the youngest population.","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":41598,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU41598","STRAT_UNIT_NAME":"Bilpa Conglomerate","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Bilpa Conglomerate","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"medium-coarse grained siliciclastic rock","LITHOLOGY":"conglomerate","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Johnson et al 2016 paraphrased: \" The sample was collected from the Bilpa Conglomerate, which is the basal unit of the Mutawintji Group. The sample is dominated by metamorphic and mafic lithic fragments along with coarse, angular clasts of quartz and alkali feldspar. The lithic and clast contents of this sample are consistent with its derivation from an orogenic source. Detrital zircon extracted from the sample are rounded, fragmented, and often exhibits faint oscillatory zoning. The identification of heterogeneous and patchy textures combined with inherited cores with metamorphic rims indicates a complex history for some of the grains.\"","SAMPLING_FEATURE_NAME":"KB27","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917458","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-31.8630556,"LONG_GDA94":142.3768611,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Johnson, E.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"70838","AGE_REF":"Johnson, E.L., Phillips, G., Allen, C.M., 2016. Ediacaran-Cambrian basin evolution in the Koonenberry Belt (eastern Australia): Implications for the geodynamics of the Delamerian Orogen. Gondwana Research, 37, 266-284.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.gr.2016.04.010","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14072","geometry":{"type":"Point","coordinates":[150.9997931,-31.8752065]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14072,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655604","IGSN":"10.60494/zbff-y436","SAMPLENO":9655604,"SAMPLE_ID":"503-1","AGE_MA":319.1,"AGE_MA_UNCERTAINTY":2.9,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"age of volcanism","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"unnamed ignimbrite C3","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous volcanic rock","LITHOLOGY":"ignimbrite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Roberts et al 2006 paraphrased \"Green unwelded ignimbrite with fine to coarse (<0.5 to rarely 3 mm) phenocrysts (20 - 30%) of plagioclase, quartz, biotite and opaque minerals. Pumice small, elongate, lensoidal and lamellar near the base, but larger and more blocky in mid- to upper parts of the ignimbrite. Rare fragments of a trachytic-textured volcanic. Shards and vesicles undeformed; triaxons present. Groundmass chloritic and zeolitic.\"","SAMPLING_FEATURE_NAME":"503-1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917356","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"New England Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-31.8752065,"LONG_GDA94":150.9997931,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Roberts, J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"62095","AGE_REF":"Roberts, J., Offler, R., Fanning, M., 2006. Carboniferous to Lower Permian stratigraphy of the southern Tamworth Belt, southern New England Orogen, Australia: boundary sequences of the Werrie and Rouchel Blocks. Australian Journal of Earth Sciences, 53(2), 249-284.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120090500499263","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14218","geometry":{"type":"Point","coordinates":[151.5282418,-31.8819927]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14218,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655605","IGSN":"10.60494/p2bm-vz04","SAMPLENO":9655605,"SAMPLE_ID":"NE23/05","AGE_MA":267.2,"AGE_MA_UNCERTAINTY":1.4,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.91,"NUMBER_OF_ANALYSES":9,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"age of crystallization","OTHER_AGE_INTERPRETED_FROM_SOURCE":"Alternatively, the age of crystallization can be determined from the youngest statistically simple set of analyses, with ages between 254 +/- 3 Ma and 246 +/- 3 Ma, defining an average 206Pb/238U age of 250.8 +/- 2.7 Ma (MSWD = 0.99, probability = 0.4).","AGE_REMARK_FROM_SOURCE":"The precise age of this sample is difficult to pinpoint as the age distribution is skewed with the mode at about 268 Ma and a gradual tail towards 250 Ma. The crystallisation age presented here includes grains between 274 +/- 6 Ma and 261 +/- 3 Ma.","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Barrington Tops Supersuite","UNIT_NAME_SOURCE":"Barrington Tops Granodiorite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":"pluton","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Cawood et al 2011 paraphrased: \"The Zircons are more elongated with a length to breadth ratio in excess of 5, although most of the extracted grains are broken fragments rather than complete crystals, which most likely results from their unusual elongation. Their internal structures are relatively simple, consisting of either relatively thick oscillatory zones or a simple alteration of even thicker bands of differing CL intensity with no observed dissolution boundaries between zones.","SAMPLING_FEATURE_NAME":"NE23/05","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917519","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"New England Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-31.8819927,"LONG_GDA94":151.5282418,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Cawood, P.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75818","AGE_REF":"Cawood, P.A., Leitch, E.C., Merle, R.E., Nemchin, A.A., 2011. Orogenesis without collision: Stabilizing the Terra Australis accretionary orogen, eastern Australia. Bulletin of the Geological Society of America, 123(11-12), 2240-2255.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1130/B30415.1","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14398","geometry":{"type":"Point","coordinates":[151.5918,-31.8862]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14398,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655606","IGSN":"10.60494/jng7-p938","SAMPLENO":9655606,"SAMPLE_ID":"BT1","AGE_MA":269,"AGE_MA_UNCERTAINTY":2,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":null,"NUMBER_OF_ANALYSES":4,"CALCULATION_TYPE":"not reported","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"Macquarie University","AGE_INTERPRETED_FROM_SOURCE":"crystallisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"A group of nineteen analyses define a range of 206Pb/238U ages between 241 and 294 Ma. A U-Pb SHRIMP age of 269 +/- 2 Ma has been previously calculated from a small population of zircon grains (n = 4) from the same pluton (Collins and Fanning, unpubl. data). Based on the comparable ages, we suggest that c. 269 Ma is a reliable crystallisation age for the Barrington Tops Granodiorite.","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Barrington Tops Supersuite","UNIT_NAME_SOURCE":"Barrington Tops Pluton","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granodiorite","MODE_OF_OCCURRENCE":"pluton","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Philips et al 2011 paraphrased \" The samples orgin rock is fine-grained appearance that is consistent with rapid crystallisation. Plagioclase, minor K-feldspar and quartz are the dominant felsic mineral phases, whereas biotite, hornblende and augite (often replaced by actinolite) comprise the mafic phases. Accessory titanite, apatite and magnetite are also common (Hensel et al., 1985). Morphologically, zircons from the Barrington Tops Granodiorite are elongate, have pointed to blunt terminations and range in length between 100 and 200 um. Faint sector zoning and thin bright rims reflecting an enrichment in U, Th and REE.\"","SAMPLING_FEATURE_NAME":"BT1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917417","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"New England Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-31.8862,"LONG_GDA94":151.5918,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Phillips, G.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"66612","AGE_REF":"Phillips, G., Landenberger, B., Belousova, E.A., 2011. Building the New England Batholith, eastern Australia - Linking granite petrogenesis with geodynamic setting using Hf isotopes in zircon. Lithos, 122, 1-12.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.lithos.2010.11.005","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14202","geometry":{"type":"Point","coordinates":[152.2409,-31.8963]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14202,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655607","IGSN":"10.60494/0yfh-e732","SAMPLENO":9655607,"SAMPLE_ID":"MG-14-018","AGE_MA":290,"AGE_MA_UNCERTAINTY":3.2,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.17,"NUMBER_OF_ANALYSES":16,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"U/Pb not reported","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: unknown model","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 8800","LABORATORY_NAME":"University of Queensland","AGE_INTERPRETED_FROM_SOURCE":"age constraint for deposition","OTHER_AGE_INTERPRETED_FROM_SOURCE":"288.5 +/- 2.1 Ma","AGE_REMARK_FROM_SOURCE":"Combined detrital zircon ages of sedimentary samples MG-14-11, MG-14-12, MG-14-15, MG-14-18: 288.5 +- 2.1 Ma (MSWD = 0.21, n = 33)","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Giro beds","UNIT_NAME_SOURCE":"eastern basin clastic sample, Charity Creek beds (equiv)","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"medium-coarse grained siliciclastic rock","LITHOLOGY":"sandstone","MODE_OF_OCCURRENCE":"bed","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"White et al 2016 paraphrased: \"Charity Creek Beds comprise massive pebbly mudstones and diamictites commonly interbedded with massive sandstone horizons harboring thin siltstone and mudstone laminations. This unit is possibly correlative to the Giro Diamictite of the western part of the [Manning] basin (Jenkins, 1992). Zircons with preference for the larger, more euhedral crystals to encourage a robust youngest population constraint.\"","SAMPLING_FEATURE_NAME":"MG-14-018","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917477","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"New England Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-31.8963,"LONG_GDA94":152.2409,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"White, L.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75838","AGE_REF":"White, L., Rosenbaum, G., Allen, C.M., Shaanan, U., 2016. Orocline-driven transtensional basins: Insights from the Lower Permian Manning Basin (eastern Australia). Tectonics, 35(3), 690-703.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1002/2015TC004021","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14438","geometry":{"type":"Point","coordinates":[151.0288389,-31.9158786]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14438,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655608","IGSN":"10.60494/mwf0-z070","SAMPLENO":9655608,"SAMPLE_ID":"527-24","AGE_MA":346.8,"AGE_MA_UNCERTAINTY":2.1,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"age of volcanism","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"unnamed ignimbrite D","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous volcanic rock","LITHOLOGY":"ignimbrite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Roberts et al 2006 paraphrased \"Ignimbrites B & D contain phenocrysts (<0.5 - 2.5 mm; 20 - 25%) of plagioclase, opaque minerals, and fragments of pumice and fine to coarse (46 mm) feldspathic volcanic rocks. Unit is pale red colour and contains rare quartz and volcanic rock fragments and closely packed shards.\"","SAMPLING_FEATURE_NAME":"527-24","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917358","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"New England Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-31.9158786,"LONG_GDA94":151.0288389,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Roberts, J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"62095","AGE_REF":"Roberts, J., Offler, R., Fanning, M., 2006. Carboniferous to Lower Permian stratigraphy of the southern Tamworth Belt, southern New England Orogen, Australia: boundary sequences of the Werrie and Rouchel Blocks. Australian Journal of Earth Sciences, 53(2), 249-284.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120090500499263","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14123","geometry":{"type":"Point","coordinates":[151.0321262,-31.9209084]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14123,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655609","IGSN":"10.60494/0ytd-z148","SAMPLENO":9655609,"SAMPLE_ID":"532-1A","AGE_MA":346.3,"AGE_MA_UNCERTAINTY":2.7,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.61,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"age of volcanism","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"unnamed ignimbrite B","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous volcanic rock","LITHOLOGY":"ignimbrite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Roberts et al 2006 paraphrased \"Ignimbrites B & D contain phenocrysts (<0.5 - 2.5 mm; 20 - 25%) of plagioclase, opaque minerals, and fragments of pumice and fine to coarse (46 mm) feldspathic volcanic rocks. Unit is pale red colour and contains rare quartz and volcanic rock fragments and closely packed shards.\"","SAMPLING_FEATURE_NAME":"532-1A","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917359","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"New England Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-31.9209084,"LONG_GDA94":151.0321262,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Roberts, J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"62095","AGE_REF":"Roberts, J., Offler, R., Fanning, M., 2006. Carboniferous to Lower Permian stratigraphy of the southern Tamworth Belt, southern New England Orogen, Australia: boundary sequences of the Werrie and Rouchel Blocks. Australian Journal of Earth Sciences, 53(2), 249-284.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120090500499263","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14146","geometry":{"type":"Point","coordinates":[141.520801,-31.931608]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14146,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655610","IGSN":"10.60494/k244-ww76","SAMPLENO":9655610,"SAMPLE_ID":"02BH15","AGE_MA":1595,"AGE_MA_UNCERTAINTY":7,"AGE_CONFIDENCE_LEVEL":"1 standard deviation","AGE_MSWD":null,"NUMBER_OF_ANALYSES":4,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"metamorphism","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Monazite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP RG","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"timing of S2 foliation development","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"This date is indistinguishable from the 1592 +/- 4 Ma (n = 5) result obtained by Forbes et al. (2007b), confirming the timing of S2 development at Round Hill.","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":17531,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU17531","STRAT_UNIT_NAME":"Sundown Group","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Round Hill, Sundown Group","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"foliated metamorphic rock","LITHOLOGY":"gneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"McFarlane and Frost, 2009 paraphrased \" The sample was a migmatitic pelitic gneiss and contains a layer-parallel, locally anastomosing spaced S2 foliation defined by prismatic sillimanite.\"","SAMPLING_FEATURE_NAME":"02BH15","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS917323","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Curnamona Province","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-31.931608,"LONG_GDA94":141.520801,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"McFarlane, C.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"64847","AGE_REF":"McFarlane, C.R.M., Frost, B.R., 2009. Constraints on the early metamorphic evolution of Broken Hill, Australia, from in situ U-Pb dating and REE geochemistry of monazite. Journal of Metamorphic Geology, 27(1), 3-17.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1111/j.1525-1314.2008.00801.x","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14124","geometry":{"type":"Point","coordinates":[151.0454475,-31.9425536]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14124,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9655611","IGSN":"10.60494/03r9-q972","SAMPLENO":9655611,"SAMPLE_ID":"542-1","AGE_MA":349.6,"AGE_MA_UNCERTAINTY":1.7,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":24,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"age of volcanism","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":82404,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU82404","STRAT_UNIT_NAME":"Curra Keith Tongue Member","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Curra Keith Tongue","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous volcanic rock","LITHOLOGY":"ignimbrite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Roberts et al 2006 paraphrased \"The Curra Keith Tongue emerges from the Native Dog Member at Dangarfield, between Aberdeen and Upper Rouchel, and extends northwards to the Waverley Fault (Caldwell 1985) and eastwards to the vicinity of Mt Scrumlo. It is underlain by the Ayr Conglomerate and overlain by a thin succession of sedimentary rocks and the Oakfields Tongue. 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Geochronology dataset 709, in Compilation of geochronology data: Geological Survey of Western Australia.","AGE_PUBLICATION_LINKS":"http://geodownloads.dmp.wa.gov.au/downloads/Geochron/pdfs/184312.1.pdf","AGE_ENTRY_DATE":"2020-11-16","AGE_LAST_UPDATED":"2021-03-26"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.4281","geometry":{"type":"Point","coordinates":[137.19073,-18.60204]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":4281,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU2786181","IGSN":"10273/AU2786181","SAMPLENO":2786181,"SAMPLE_ID":"2018339506","AGE_MA":1623,"AGE_MA_UNCERTAINTY":24,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":2.43,"NUMBER_OF_ANALYSES":3,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"GA6411","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Geoscience Australia","AGE_INTERPRETED_FROM_SOURCE":"Maximum depositional age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"Inserted from Geochron Delivery (Geoscience Australia; 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The Crow Formation is composed of up to 2500 m of interbedded siltstone, sandstone, shale and lesser conglomerate (Rawlings et al., 2008).  This sampled unit also represents an ‘unnamed’ unit (Psos) as mapped on MOUNT DRUMMOND (Rawlings et al., 2008). This sample was collected immediately south of unnamed subunit GA 2786168, 400 m to the north. The structural and stratigraphic relationships between the two sample sites are unclear due to Cainozoic cover. There are considerable lithological differences between these two adjacent Crow Formation subunits and this sample was collected to test the stratigraphic integrity between the two. Sample GA 2786181 is a poorly outcropping, thinly- to medium-bedded silicified purplish-quartz sandstone, in contrast to the texturally immature highly feldspathic micaceous sandstone of GA 2786168.","SAMPLING_FEATURE_NAME":"2018339506","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS629135","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"South Nicholson Region","REGION_NAME_SOURCE":null,"STATE":"NT","COUNTRY":"AUS","LAT_GDA94":-18.60204,"LONG_GDA94":137.19073,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2018-05-24","SAMPLE_ORIGINATOR":"Doublier, M.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"72527","AGE_REF":"Kositcin, N., Carson, C.J., 2019. New SHRIMP U-Pb zircon ages from the South Nicholson and Carrara Range regions, Northern Territory. Geoscience Australia. Record, 2019/09, 217p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.11636/Record.2019.009","AGE_ENTRY_DATE":"2019-10-23","AGE_LAST_UPDATED":"2020-11-02"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15211","geometry":{"type":"Point","coordinates":[136.35804996,-28.50980494]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15211,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034238","IGSN":"10.60494/veaf-0h07","SAMPLENO":11034238,"SAMPLE_ID":"R2509358","AGE_MA":1465,"AGE_MA_UNCERTAINTY":12,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.68,"NUMBER_OF_ANALYSES":8,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"hydrothermal alteration","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Titanite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7900","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"alteration","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"foliated granitoid","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Bockmann et al 2023: Foliated granitoid. Sample R2509358 is a foliated porphyritic granitoid taken from drillhole [DC09D01 *sic] at 338.1 m depth. It contains Kfeldspar, quartz, plagioclase, magnetite and titanite, with minor chlorite, pyrite and chalcopyrite. K-feldspar, quartz and plagioclase grains at 200-400 um largely dominate the matrix, along with disseminated magnetite grains (50-400 um). K-feldspar (largely of 4-8 mm) and quartz (up to 2 mm) phenocrysts occur within the matrix, where they may be elongate parallel to the foliation, along with magnetite. Titanite grains (largely of 50-300 um) occur on the margins of magnetite and in the quartzofeldspathic matrix. Titanite grains that occur on the margins of magnetite are typically pale with weak pleochroism, whereas titanite in the matrix in the vicinity of chlorite alteration typically form more rounded grains that show stronger pleochroism from pale to medium brown. Pyrite is disseminated throughout the sample, forming cubic grains that are largely at 150-200 um. NOTE: SARIG Drillhole database cites that this sample is from drillhole DCDH001.","SAMPLING_FEATURE_NAME":"DCDH001","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH927312","BOREHOLE_TOP_DEPTH_M":338.1,"BOREHOLE_BASE_DEPTH_M":338.8,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-28.5098049407,"LONG_GDA94":136.3580499631,"ELEV_M_AHD":57,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2018-06-13","SAMPLE_ORIGINATOR":"Bockmann, M.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"76114","AGE_REF":"Bockmann, M.J., Payne, J.L., Hand, M., Morrissey, L.J., Belperio, A.P., 2023, Linking the Gawler Craton and Mount Isa Province through hydrothermal systems in the Peake and Denison Domain, northeastern Gawler Craton. 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Sample R2509358 is a foliated porphyritic granitoid taken from drillhole [DC09D01 *sic] at 338.1 m depth. It contains Kfeldspar, quartz, plagioclase, magnetite and titanite, with minor chlorite, pyrite and chalcopyrite. K-feldspar, quartz and plagioclase grains at 200-400 um largely dominate the matrix, along with disseminated magnetite grains (50-400 um). K-feldspar (largely of 4-8 mm) and quartz (up to 2 mm) phenocrysts occur within the matrix, where they may be elongate parallel to the foliation, along with magnetite. Titanite grains (largely of 50-300 um) occur on the margins of magnetite and in the quartzofeldspathic matrix. Titanite grains that occur on the margins of magnetite are typically pale with weak pleochroism, whereas titanite in the matrix in the vicinity of chlorite alteration typically form more rounded grains that show stronger pleochroism from pale to medium brown. Pyrite is disseminated throughout the sample, forming cubic grains that are largely at 150-200 um. NOTE: SARIG Drillhole database cites that this sample is from drillhole DCDH001.","SAMPLING_FEATURE_NAME":"DCDH001","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH927312","BOREHOLE_TOP_DEPTH_M":338.1,"BOREHOLE_BASE_DEPTH_M":338.8,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-28.5098049407,"LONG_GDA94":136.3580499631,"ELEV_M_AHD":57,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2018-06-13","SAMPLE_ORIGINATOR":"Bockmann, M.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"76114","AGE_REF":"Bockmann, M.J., Payne, J.L., Hand, M., Morrissey, L.J., Belperio, A.P., 2023, Linking the Gawler Craton and Mount Isa Province through hydrothermal systems in the Peake and Denison Domain, northeastern Gawler Craton. 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Sample 2021330398 represents an excellent example of these green tuffaceous horizons, with a sharp conformable base on clean fine cross-bedded sandstone (Crombez et al., 2022), grading upward into dark siliciclastic units. In hand specimen, sample 2021330398 contains a weakly discernible layering parallel to bedding. In thin section, the sample is characterised by a pseudo-eutaxitic fabric (layered or banded texture of volcanic origin) with glass (typically ~5%), trace to present (1-5%) pumaceous fiamme, and overall low crystal fragment content. Graded bedding is observed with planar sub-mm layers of glassy-sericitic groundmass with upper surfaces of relatively high abundance crystal fragments and altered pumice fragments defining the graded bedding (Madden et al., 2022). The sample is classified as a ‘sericitic pumaceous fine tuff’ by Madden et al. (2022). Quartz fragments are rare (typically <5%) with alkali feldspar the dominant crystal type at ca. 60% (Madden et al., 2022). Crystal sizes are uniform between rounded quartz grains (embayed clear glassy - ?volcanic) and feldspars around <100-230 microns. Muscovite and secondary illite is common, comprising ca. 14% and ca. 20%, respectively (Madden et al., 2022). Additional trace mineralogy includes very fine (<5-40 micron) euhedral to subhedral pyrite, chalcopyrite, and hematite.","SAMPLING_FEATURE_NAME":"NDI Carrara 1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH648482","BOREHOLE_TOP_DEPTH_M":1594.99,"BOREHOLE_BASE_DEPTH_M":1595.17,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NT","COUNTRY":"AUS","LAT_GDA94":-18.9732532761,"LONG_GDA94":137.7849684567,"ELEV_M_AHD":262,"ACCURACY_M":3,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2021-04-23","SAMPLE_ORIGINATOR":"Grosjean, E.","SAMPLE_PHOTO":"Y","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73615","AGE_REF":"Kositcin, N., Carson, C.J., 2022. Exploring for the Future: SHRIMP U-Pb geochronology of NDI Carrara 1, South Nicholson region, Northern Territory. Geoscience Australia. 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Economic Geology, 115(8), 1855-1870.","AGE_PUBLICATION_LINKS":"https://doi.org/10.5382/econgeo.4772","AGE_ENTRY_DATE":"2025-11-18","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.7477","geometry":{"type":"Point","coordinates":[117.86288,-25.3872]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":7477,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU6661191","IGSN":"10273/AU6661191","SAMPLENO":6661191,"SAMPLE_ID":"142853.1","AGE_MA":2637,"AGE_MA_UNCERTAINTY":3,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"not captured","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"U/Pb not captured","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"igneous crystallization (max age)","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSWA","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":null,"LITHOLOGY":null,"MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"ROBINSON RANGE_142853.1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS648952","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Yilgarn Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-25.3872,"LONG_GDA94":117.86288,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Geological Survey of Western Australia geochronology dataset","AGE_PUBLICATION_LINKS":"http://geodownloads.dmp.wa.gov.au/downloads/Geochron/pdfs/142853.1.pdf","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2021-01-14"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.7217","geometry":{"type":"Point","coordinates":[122.52633839,-21.39993327]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":7217,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1573400","IGSN":"10273/AU1573400","SAMPLENO":1573400,"SAMPLE_ID":"137664","AGE_MA":611,"AGE_MA_UNCERTAINTY":21,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.61,"NUMBER_OF_ANALYSES":23,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"age of igneous crystallization","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSWA","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"biotite monzogranite, Minyari Hill","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"monzogranite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"biotite monzogranite","SAMPLING_FEATURE_NAME":"137664","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS127119","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Canning Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-21.3999332664,"LONG_GDA94":122.5263383871,"ELEV_M_AHD":293,"ACCURACY_M":50,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Nelson, D.R.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Nelson, DR 2001, 137664: biotite monzogranite, Minyari Hill; Geochronology Record 420: Geological Survey of Western Australia, 4p.","AGE_PUBLICATION_LINKS":"http://geodownloads.dmp.wa.gov.au/downloads/Geochron/pdfs/137664.1.pdf","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2020-11-16"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15599","geometry":{"type":"Point","coordinates":[136.18305,-34.642968]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15599,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11083973","IGSN":"10.60494/4nks-2602","SAMPLENO":11083973,"SAMPLE_ID":"R14793","AGE_MA":1497,"AGE_MA_UNCERTAINTY":13,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.38,"NUMBER_OF_ANALYSES":8,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation, intrusive","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/Original publication","PROJECT":null,"STRATNO":17164,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU17164","STRAT_UNIT_NAME":"Spilsby Suite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"granite, Spilsby Suite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"R14793","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS1008678","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-34.642968,"LONG_GDA94":136.18305,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":"Spilsby Island, Spencer Gulf","SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Bodorkos, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"65376","AGE_REF":"Fanning, C.M., Reid, A.J., Teale, G.S., 2007. A geochronological framework for the Gawler Craton, South Australia. Geological Survey of South Australia Bulletin, 55, 258p.","AGE_PUBLICATION_LINKS":"https://pid.sarig.sa.gov.au/document/2018d037833","AGE_ENTRY_DATE":"2025-11-18","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15091","geometry":{"type":"Point","coordinates":[152.9762864,-26.42413214]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15091,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU7937590","IGSN":"10273/AU7937590","SAMPLENO":7937590,"SAMPLE_ID":"DPPA127","AGE_MA":27.23,"AGE_MA_UNCERTAINTY":0.26,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.85,"NUMBER_OF_ANALYSES":21,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":"GA6498","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Geoscience Australia","AGE_INTERPRETED_FROM_SOURCE":"Magmatic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":69595,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU69595","STRAT_UNIT_NAME":"Allandale Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Allandale Granite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate intrusive rock","LITHOLOGY":"monzonite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"The Allandale Granite is one of very few Cenozoic granites in the Sunshine Coast region. It forms a small stock (<1 km2) intruding the Triassic North Arm Volcanics ca 6.5 km east southeast of Cooroy in the Noosa hinterland area. An adjacent body to the east shown as unnamed unit Ti or lakes view syenite (Noon, 1972) is similar in composition and belongs to the same intrusive unit. The granite had been variably described as riebeckite- or arfvedsonite-bearing (see Purdy and Bultitude, 2022) and was examined and sampled by GSQ as part of the Peralkaline Magmatic Systems project. Previous K-Ar geochronology on the Allandale Granite includes a whole rock date of 32.8 +/- 1 Ma and a significantly younger arfvedsonite date of 24.7 +/- 0.7 Ma (Noon, 1972; Green and Webb, 1974; recalculated using the decay constants of Steiger and Jaeger, 1977). More recently, Cohen et al. (2007) reported an arfvedsonite and K-feldspar 40Ar/39Ar date of 27.6 +/- 0.4 Ma. The unit was sampled for geochronology in this study to evaluate the existing K-Ar and 40Ar/39Ar dates and provide the first zircon U-Pb geochronology for Cenozoic units in the Sunshine Coast region. The sample site is in an area of boulder rubble forming a densely forested hill on private property ca 6.5 km east of Cooroy and 260 m south of Dath Henderson Road. Here, the Allandale Granite is fine- to medium-grained, equigranular and contains plagioclase, alkali feldspar, interstitial quartz, two amphiboles, and minor pyroxene. Zircon is an accessory phase, and the rock contains sulfides (possibly arsenopyrite).","SAMPLING_FEATURE_NAME":"DPPA127","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS817758","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-26.4241321395,"LONG_GDA94":152.9762864009,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Geological Survey of Queensland (GSQ)","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75851","AGE_REF":"Kositcin, N., Purdy, D.J., Beattie, E., Spence, J., von Gnielinski, F.E., Simpson, B.P., Platt, S., 2024. Summary of results. Joint GSQ-GA Geochronology Project: Peralkaline Magmatic Systems and Northeast Queensland Deposits projects, 2023-2024. Geoscience Australia. Record, 2024/53, 93p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.26186/149782","AGE_ENTRY_DATE":"2024-10-30","AGE_LAST_UPDATED":"2024-10-30"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.13765","geometry":{"type":"Point","coordinates":[140.07148526,-20.55780168]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":13765,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU2678695","IGSN":"10273/AU2678695","SAMPLENO":2678695,"SAMPLE_ID":"ASMI0094","AGE_MA":1741,"AGE_MA_UNCERTAINTY":7,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.53,"NUMBER_OF_ANALYSES":23,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"GA6366","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Geoscience Australia","AGE_INTERPRETED_FROM_SOURCE":"Maximum depositional age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":4727,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU4727","STRAT_UNIT_NAME":"Corella Formation","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Corella Formation (INFORMAL_UNIT_NAME updated in 2025 using Queensland Detailed Solid Geology WMS)","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metasedimentary rock","LITHOLOGY":"sandstone","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"The sample was collected towards the easternmost and upper part of the Corella Formation type section within subdivision PLkc3a . Regionally, the subunit is described as calc-silicate granofels and impure marble with common metasiltstone interbeds (Withnall et al., 2015). The sampled outcrop consists of thin to medium interbeds of fine-grained calc-silicate-bearing, laminated meta-sandstone or metasiltstone showing lenticular spots of scapolite. In thin section, the sample consists mostly of a granular mosaic of subequant grains of quartz and untwinned feldspar <0.1 mm with aligned reddish brown biotite. Some layers have up to 30% subhedral poikiloblastic grains of weakly birefringent garnet (grossular or andradite) up to 0.2 mm. Aggregates of highly birefringent scapolite up to 5 mm are intergrown with poikiloblastic diopside and contain inclusions of garnet. The site is about 130 m north of the former Cloncurry–Mount Isa road (now used as a station track on Corella Park Station) and is about 22.5 km north-northeast of the former Mary Kathleen uranium mine. The sample was collected to provide a maximum depositional age and Zr spectra to be used as a control for regional comparison and correlation.","SAMPLING_FEATURE_NAME":"ASMI0094","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS625715","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Mount Isa Region","REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-20.5578016839,"LONG_GDA94":140.0714852607,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Lewis, C.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75056","AGE_REF":"Kositcin, N., Lewis, C.J., Withnall, I.W., Slade, A.P., Sargent, S., Hutton, L.J., 2023. Summary of results. Joint GSQ-GA Geochronology Project: Mount Isa region, 2017-2018. Geoscience Australia. Record, 2023/32, 97p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.26186/147793","AGE_ENTRY_DATE":"2023-07-24","AGE_LAST_UPDATED":"2026-02-18"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.894","geometry":{"type":"Point","coordinates":[149.1974528,-26.2417722]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":894,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU2122750","IGSN":"10273/AU2122750","SAMPLENO":2122750,"SAMPLE_ID":"Meeleebee5/73","AGE_MA":253.9,"AGE_MA_UNCERTAINTY":1,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.72,"NUMBER_OF_ANALYSES":36,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":"GA6169","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Geoscience Australia","AGE_INTERPRETED_FROM_SOURCE":"Age of magmatic crystallization of (meta-)igneous rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"[Magee et al. (2023; https:doi.org/10.5194/gchron-5-1-2023) quoted this same weighted mean with a 95% confidence interval of 1.2 Ma, because they included (via quadratic addition) the uncertainty of 0.27% (2sigma) associated with the reference 206Pb/238U value for TEMORA2 determined via IDTIMS (which is dominated by the uncertainty in U/Pb of the tracer solution; see Black et al. 2004). Including this additional component of uncertainty facilitated direct comparison with CA-TIMS analyses from the same zircon population (Magee et al. 2023).]","AGE_SOURCE":"Updated from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 20 September 2019","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous material","LITHOLOGY":"tuff","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"Meeleebee 5","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH554516","BOREHOLE_TOP_DEPTH_M":1202.31,"BOREHOLE_BASE_DEPTH_M":1203.42,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-26.2417722,"LONG_GDA94":149.1974528,"ELEV_M_AHD":366,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2011-04-01","SAMPLE_ORIGINATOR":"Mantle, D.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"70878; 74357","AGE_REF":"Laurie, J.R., Bodorkos, S., Nicoll, R.S., Crowley, J.L., Mantle, D.J., Mory, A.J., Wood, G.R., Backhouse, J., Holmes, E.K., Smith, T.E., Champion, D.C., 2016. Calibrating the middle and late Permian palynostratigraphy of Australia to the geologic time-scale via U-Pb zircon CA-IDTIMS dating. Australian Journal of Earth Sciences, 63(6), 701-730.; Magee, C.W., Bodorkos, S., Lewis, C.J., Crowley, J.L., Wall, C.J., Friedman, R.M., 2023. Examination of the accuracy of SHRIMP U-Pb geochronology based on samples dated by both SHRIMP and CA-TIMS. Geochronology, 5(1), 1-19.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099.2016.1233456; https://doi.org/10.5194/gchron-5-1-2023","AGE_ENTRY_DATE":"2015-10-26","AGE_LAST_UPDATED":"2023-01-12"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.7917","geometry":{"type":"Point","coordinates":[150.61931049,-24.22893693]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":7917,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU6660826","IGSN":"10273/AU6660826","SAMPLENO":6660826,"SAMPLE_ID":"MHRO971(1)","AGE_MA":303.6,"AGE_MA_UNCERTAINTY":3.7,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.3,"NUMBER_OF_ANALYSES":13,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"age of rhyolitic ignimbrite","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Not explicitly stated what the age is interp'd as.","AGE_SOURCE":"Original Reference","PROJECT":null,"STRATNO":21016,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU21016","STRAT_UNIT_NAME":"Youlambie Conglomerate","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Youlambie Conglomerate","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous volcanic rock","LITHOLOGY":"ignimbrite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"MHRO971","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS648587","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Proserpine Region","REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-24.2289369253,"LONG_GDA94":150.619310492,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":"Road cutting on Dawson Highway, 22km north-east of Biloela, BILOELA MGA 258242 7318366","SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"68008","AGE_REF":"Murray, C.G., Blake, P.R., Crouch, S.B.S., Hayward, M.A., Robertson, A.D.C., Simpson, G.A., 2012. 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[A total of] 219 analyses (of which 150 were concordant) mostly taken from hydrothermal zircon and metamict zircon","AGE_SOURCE":null,"PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Tick Hill syn-D3 pegmatite","UNIT_NAME_SOURCE":"Tick Hill syn-D3 pegmatite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous intrusive rock","LITHOLOGY":"pegmatite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"unknown","SAMPLE_DESC":"felsic pegmatite vein in the north wall of the pit, where it transects the dominant composite S1-2 fabric in biotite-chlorite schist at a low angle across sharp intrusive boundaries. The pegmatite intruded along the main D3 shear zone that forms the host to mineralization, and is associated with an array of en echelon quartz veins consistent with a normal-sinistral sense of movement, i.e. the pegmatite will provide an age for D3 normal faulting. Sample TH141 is not foliated and largely consists of coarse-grained albite and K-feldspar with subordinate quartz and minor biotite. Much of the feldspar was strongly altered to albite, epidote, sericite and clay minerals while biotite was replaced by chlorite.","SAMPLING_FEATURE_NAME":"TH141","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS1083074","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-21.6456143877,"LONG_GDA94":139.9260336269,"ELEV_M_AHD":null,"ACCURACY_M":99,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Le, T.X.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"76529","AGE_REF":"Le, T.X., Dirks, P.H.G.M., Sanislav, I.V., Huizenga, J.M., Cocker, H.A., Manestar, G.N., 2021, Geochronological constraints on the geological history and gold mineralization in the Tick Hill region, Mt Isa Inlier. Precambrian Research, 366.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.precamres.2021.106422.","AGE_ENTRY_DATE":"2026-06-09","AGE_LAST_UPDATED":"2026-06-09"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15022","geometry":{"type":"Point","coordinates":[144.31080353,-16.96743608]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15022,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9402794","IGSN":"10.60494/0sg6-xs76","SAMPLENO":9402794,"SAMPLE_ID":"BB5499","AGE_MA":281.3,"AGE_MA_UNCERTAINTY":1.4,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.63,"NUMBER_OF_ANALYSES":29,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":"GA6514","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Geoscience Australia","AGE_INTERPRETED_FROM_SOURCE":"Magmatic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":21835,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU21835","STRAT_UNIT_NAME":"Gavin Rhyolite","INFORMAL_UNIT_NAME":"Gavin Rhyolite/2","UNIT_NAME_SOURCE":"Gavin Rhyolite (INFORMAL_UNIT_NAME updated in 2025 using Queensland Detailed Solid Geology WMS)","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous volcanic rock","LITHOLOGY":"ignimbrite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"The analysed sample was collected from an extensive pavement on the flank of a prominent rocky hill ca 100 m east of the main road to Nychum station. The outcrops form part of subunit Pwe/2 of the Gavin Rhyolite. The Gavin Rhyolite is one of the main units in the Wakara Subgroup of the Carboniferous–Permian Featherbed Volcanic Group. The group is the largest and best exposed contiguous accumulation of felsic volcanic rocks in north Queensland and is preserved in a series of overlapping volcano-tectonic collapse structures (Mackenzie, 1993).\r\nThe sampled outcrop consists of dark grey, densely welded, crystal-rich, lithics-poor, rhyolitic ignimbrite characterised by prominent pale grey, strongly porphyritic microgranite clasts containing white feldspar phenocrysts up to ca 2 cm long. These clasts are generally <15 cm long and commonly display ellipsoidal or lenticular outlines with rounded rather than pointed or flame-like terminations typical of flattened pumice fragments. They may have originally been pumice (i.e., vesiculated) fragments, or pods and lenses of non-vesiculated (degassed) only partly crystallised microgranite magma when erupted (also see Mackenzie, 1993).\r\nThe sample displays a vitriclastic texture. Crystals and crystal fragments make up ca 50% or more of the rhyolite. They consist mainly of quartz and K-feldspar. Other minerals identified include plagioclase, clinopyroxene, orthopyroxene, fayalite, biotite, allanite, magnetite, zircon, and apatite. Fayalite grains are generally extensively altered to reddish brown iddingsite and pyroxenes commonly have narrow reaction rims consisting mainly of biotite ± magnetite. The very fine-grained matrix consists of very finely comminuted glassy ash and devitrified ash. Small clasts of porphyritic microgranite are relatively common in the thin sections examined of the analysed sample. They are not highly lenticular and contain phenocrysts of the same mineral species, including fayalite, which occur in the enclosing ignimbrite. No outlines of flattened former glass shards were recognised in the very fine-grained, quartzofeldspathic groundmass. Some of these clasts are characterised by narrow axiolitic zones at the contact with the matrix of the rhyolitic ignimbrite and in a few axiolitic zones surround some phenocrysts within the microgranite. The axiolitic fibres indicate those clasts at least were originally glassy and that they were deposited while still hot and subsequently cooled relatively slowly and devitrified (e.g., see McPhie et al., 1993). \r\nA sample from the Gavin Rhyolite was collected for SHRIMP analysis to: 1) provide some isotopic age control in one of the youngest and until now undated parts of the very extensive Featherbed Volcanic Group, and 2) check the assertion of Mackenzie (1993) that the age of the Gavin Rhyolite is between 289 ± 10 Ma (Rb–Sr, average of several results) and 278 ± 3 Ma (L. Black, unpublished data, sample 86300883/1456773, GA’s Geochronology and Isotopes Data Portal; sample from ca 48 km to the east in the Lightning Creek Rhyolite) based on a combination of field relationships and isotopic dating (mainly Rb–Sr). The Lightning Creek Rhyolite forms part of the adjacent Djungan Volcanic Subgroup (Mackenzie, 1993).","SAMPLING_FEATURE_NAME":"BB5499","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS887358","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":null,"LAT_GDA94":-16.9674360796,"LONG_GDA94":144.3108035313,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Kositcin, N.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75850","AGE_REF":"Kositcin, N., Bultitude, R.J., 2024. New SHRIMP U-Pb ages from the Georgetown and Cairns regions, Queensland: NE Queensland Solid Geology Project, 2023-2024. Geoscience Australia. 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The relationship between the two granitoids is unknown. 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Early Mesoproterozoic metamorphism in the Barossa Complex, South Australia: links with the eastern margin of Proterozoic Australia. 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Comment from Withnall 2019: \"The legitimacy of this age estimate was questioned by Curtin University (2010), because of the elimination of 7 analyses, but was considered to be the best estimate of the age of formation of the zircons in AUG02 that could be derived from the data.\"","AGE_SOURCE":"GSQ Compilation","PROJECT":null,"STRATNO":75737,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU75737","STRAT_UNIT_NAME":"Augustus Igneous Complex","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Augustus Complex","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid volcanic rock","LITHOLOGY":"rhyolite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"DONORS HILL_37469","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS648506","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Carpentaria Lowlands Region","REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-18.56967222,"LONG_GDA94":139.8628111,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Curtin University of Technology 2010 Shrimp Analysis of Aug1, Aug2 and BBDD. 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The analysed sample was collected from an outcrop on the flank of a low hill with a broad crest located ca 5 km west of the Palmerville Fault and ca 50 km north-northwest of Chillagoe. The outcrop is part of unnamed subunit Cp/z, the youngest and most extensive (ca 115 km2) of the mapped subunits in the formation.\r\nThe subunit is well exposed in this area as extensive, bouldery outcrops of pale–medium grey, lithics-rich, very crystal-rich (ca 45% crystals), rhyolitic ignimbrite commonly with a prominent eutaxitic foliation, especially on weathered surfaces. A notable characteristic of the rhyolite is the relatively large size of some the quartz crystals/crystal fragments, a feature shared with rhyolitic ignimbrite intersected in drillhole Karumba KAN_0003_1 (8246355) located ca 28 km to the southwest and assigned to the Pratt Volcanics. \r\nQuartz crystals and crystal fragments dominate the mineral assemblage and range up to ca 1.5 cm across followed by subordinate, smaller (up to ca 5 mm long), white K-feldspar and plagioclase grains. Quartz grains are commonly embayed/partly resorbed. Biotite is the main mafic mineral but is present in only minor amounts. Other minor, accessory and secondary minerals include opaque oxide, titanite, zircon, calcite, chlorite, and sericite/muscovite. \r\nThe rhyolite is moderately altered. Feldspar grains are turbid to varying degrees and biotite grains are extensively replaced by Fe oxide(s) and undetermined secondary minerals. A few grains, now consisting mainly of pale green chlorite and calcite may have originally been amphibole. plagioclase (pl; turbid grains), and biotite (bt) in a very fine-grained devitrified ash matrix.\r\nLithic fragments can be subdivided into two broad groups. One group consisting mainly of clasts of dark greyish green rhyolite containing numerous quartz and white feldspar grains are lenticular in shape and represent flattened and devitrified pumice fragments (fiamme). They are most abundant and the dominant clast type in the upper part of the outcrop (i.e., show reverse grading) but occur throughout the ignimbrite and define the eutaxitic foliation. In thin section they show as pale to dark brown lenticular fragments of partly devitrified volcanic glass that have been highly compacted and partly wrap around crystal fragments. These clasts commonly have wispy, flame-like terminations and some contain spherulites. \r\nThe second group consists of several felsic volcanic rock types and probably represent both accidental and cognate lithic pyroclasts. They are rounded to angular, show no evidence of significant flattening, and are most abundant in the basal exposed part of the outcrop (i.e., show normal grading) where they are up to ca 5 cm across but also occur in lesser amounts throughout the subunit.\r\nThe Pratt Volcanics were assigned a late Carboniferous age (Bultitude & Domagala, 1988; Bultitude et al., 1995) mainly because the unit is intruded by a granodiorite of the Almaden Supersuite. The granodiorite in question has not been isotopically dated but reported emplacement ages for other Almaden Supersuite granitoids cluster around 310-300 Ma (e.g., see Bultitude et al., 1995; Champion & Bultitude, 2013).","SAMPLING_FEATURE_NAME":"RJB396","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS887360","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":null,"LAT_GDA94":-16.8819796834,"LONG_GDA94":144.1458476318,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Kositcin, N.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75850","AGE_REF":"Kositcin, N., Bultitude, R.J., 2024. New SHRIMP U-Pb ages from the Georgetown and Cairns regions, Queensland: NE Queensland Solid Geology Project, 2023-2024. Geoscience Australia. Record, 2024/51, 118p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.26186/149794","AGE_ENTRY_DATE":"2024-09-24","AGE_LAST_UPDATED":"2026-02-18"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15847","geometry":{"type":"Point","coordinates":[146.2666,-20.0757]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15847,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11086427","IGSN":"10.60494/ee6s-es23","SAMPLENO":11086427,"SAMPLE_ID":"93-921","AGE_MA":414.8,"AGE_MA_UNCERTAINTY":1,"AGE_CONFIDENCE_LEVEL":"1 standard deviation","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"pseudo-plateau","GEOLOGICAL_EVENT":"mineralisation","ISOTOPIC_SYSTEM":"Ar/Ar","ISOTOPIC_RATIO":"40Ar/39Ar","MINERAL":"Sericite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"furnace: unknown model","ANALYTICAL_COLLECTION_SYSTEM":"unknown: unknown","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"crystallisation of the sericite and hence the emplacement of gold","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"As the age spectrum is non-ideal, the total fusion age of ca 417 Ma may be interpreted as the best estimate of the time of crystallisation of the sericite and hence the emplacement of Au.","AGE_SOURCE":null,"PROJECT":null,"STRATNO":23791,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU23791","STRAT_UNIT_NAME":"Millchester Creek Tonalite","INFORMAL_UNIT_NAME":"Millchester Creek Tonalite","UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"tonalite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"unknown","SAMPLE_DESC":"Sericite was obtained from the strongly altered Silurian Millchester Creek Tonalite","SAMPLING_FEATURE_NAME":"CHARTERS TOWERS","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS1041960","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-20.0757,"LONG_GDA94":146.2666,"ELEV_M_AHD":null,"ACCURACY_M":2000,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Perkins, C.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"22611","AGE_REF":"Perkins, C., Kennedy, A.K., 1998. Permo-Carboniferous gold epoch of northeast Queensland. Australian Journal of Earth Sciences, 45(2), 185-200.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099808728381","AGE_ENTRY_DATE":"2026-05-08","AGE_LAST_UPDATED":"2026-06-09"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15438","geometry":{"type":"Point","coordinates":[134.54665711,-33.71878721]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15438,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11083911","IGSN":"10.60494/ahqp-cs86","SAMPLENO":11083911,"SAMPLE_ID":"SP02-05","AGE_MA":1762,"AGE_MA_UNCERTAINTY":11,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.91,"NUMBER_OF_ANALYSES":15,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: unknown model","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: HP/Agilent 4500 series","LABORATORY_NAME":"Macquarie University","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation, intrusive","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":38132,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU38132","STRAT_UNIT_NAME":"Investigator Granite Gneiss","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metamorphosed acid igneous rock","LITHOLOGY":"orthogneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"SP02-05","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS1008617","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-33.7187872084,"LONG_GDA94":134.546657105,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"published report, method unknown","LOCATION_DESC":"Seal Point, east side of Flinders Island, Investigator Group","SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Bodorkos, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"72058","AGE_REF":"Keyser, W., Ciobanu, C.L., Cook, N.J., Courtney-Davies, L., Kennedy, A., Wade, B.P., Ehrig, K., Dmitrijeva, M., Kontonikas-Charos, A., Feltus, H., Johnson, G., 2019. Petrographic and geochronological constrains on the granitic basement to the Middleback Ranges, South Australia. Precambrian Research, 324, 170-193.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.precamres.2019.01.024","AGE_ENTRY_DATE":"2025-11-18","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.4310","geometry":{"type":"Point","coordinates":[129.01235785,-30.83006766]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":4310,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU2678827","IGSN":"10273/AU2678827","SAMPLENO":2678827,"SAMPLE_ID":"R2425514","AGE_MA":1174,"AGE_MA_UNCERTAINTY":9,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.3,"NUMBER_OF_ANALYSES":29,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":"GA6371","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Geoscience Australia","AGE_INTERPRETED_FROM_SOURCE":"Age of magmatic crystallization of (meta-)igneous rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"Inserted from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 23 October 2019","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metamorphosed basic igneous rock","LITHOLOGY":"gneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Dark medium-grained mafic gneiss with some felsic leucosomes in places.","SAMPLING_FEATURE_NAME":"CDP004","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH625743","BOREHOLE_TOP_DEPTH_M":674.35,"BOREHOLE_BASE_DEPTH_M":676.57,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-30.8300676571,"LONG_GDA94":129.0123578492,"ELEV_M_AHD":117,"ACCURACY_M":10,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2017-10-23","SAMPLE_ORIGINATOR":"Jagodzinski, E.A.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"72344; 72934","AGE_REF":"Jagodzinski, E.A., Bodorkos, S., Crowley, J.L., Pawley, M.J., Wise, T.W., 2019. PACE Copper Coompana Drilling Project: U-Pb dating of basement and cover rocks. Geological Survey of South Australia. Report Book, 2018/00028, 211p.; Hartnady, M.I.H., Kirkland, C.L., Dutch, R.A., Bodorkos, S., Jagodzinski, E.A., 2020. Evaluating zircon initial Hf isotopic composition using a combined SIMS-MC-LASS-ICP-MS approach: a case study from the Coompana Province in South Australia. Chemical Geology, 558, 119870.","AGE_PUBLICATION_LINKS":"https://pid.sarig.sa.gov.au/document/2019d040097; https://doi.org/10.1016/j.chemgeo.2020.119870","AGE_ENTRY_DATE":"2019-10-23","AGE_LAST_UPDATED":"2020-04-23"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.1545","geometry":{"type":"Point","coordinates":[135.49975117,-22.69663218]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":1545,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU2115103","IGSN":"10273/AU2115103","SAMPLENO":2115103,"SAMPLE_ID":"2010080002","AGE_MA":1791,"AGE_MA_UNCERTAINTY":3,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.08,"NUMBER_OF_ANALYSES":27,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"GA6149","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Geoscience Australia","AGE_INTERPRETED_FROM_SOURCE":"Age of magmatic crystallization of (meta-)igneous rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"Updated from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 20 September 2019","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Pgm","UNIT_NAME_SOURCE":"Marshall Granite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"This sample is a weakly foliated to massive, pink, medium-grained biotite-hornblende granite, containing pink K-feldspar, quartz, yellow-orange plagioclase and dark brown hornblende, with rare biotite and epidote. Dykes and veins of aplite, pegmatite and quartz are common.","SAMPLING_FEATURE_NAME":"2010080002","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS530815","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Arunta Region","REGION_NAME_SOURCE":null,"STATE":"NT","COUNTRY":"AUS","LAT_GDA94":-22.6966321786,"LONG_GDA94":135.4997511666,"ELEV_M_AHD":475,"ACCURACY_M":5,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Huston, D.L.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"68150","AGE_REF":"Kositcin, N., Magee, C.W., Whelan, J.A., Champion, D.C., 2011. New SHRIMP geochronology from the Arunta Region: 2009-2010. Geoscience Australia. Record, 2011/14, 61p.","AGE_PUBLICATION_LINKS":"http://pid.geoscience.gov.au/dataset/ga/71585","AGE_ENTRY_DATE":"2012-09-13","AGE_LAST_UPDATED":"2020-11-02"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.7114","geometry":{"type":"Point","coordinates":[120.61143,-21.4398]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":7114,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU6661051","IGSN":"10273/AU6661051","SAMPLENO":6661051,"SAMPLE_ID":"169261.1","AGE_MA":3291,"AGE_MA_UNCERTAINTY":4,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.28,"NUMBER_OF_ANALYSES":15,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"age of igneous crystallization","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSWA","PROJECT":null,"STRATNO":74688,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU74688","STRAT_UNIT_NAME":"Yilgalong Granitic Complex","INFORMAL_UNIT_NAME":"Yilgalong Granitic Complex","UNIT_NAME_SOURCE":"Yilgalong Granitoid Complex","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"tonalite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"NULLAGINE_169261.1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS648812","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Pilbara Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-21.4398,"LONG_GDA94":120.61143,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Nelson, DR 2005, 169261: tonalite gneiss, Bullyarrie Well; Geochronology Record 570: Geological Survey of Western Australia, 4p.","AGE_PUBLICATION_LINKS":"http://geodownloads.dmp.wa.gov.au/downloads/Geochron/pdfs/169261.1.pdf","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2020-11-16"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.1112","geometry":{"type":"Point","coordinates":[144.12051595,-17.11770594]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":1112,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU2171195","IGSN":"10273/AU2171195","SAMPLENO":2171195,"SAMPLE_ID":"VLE1401","AGE_MA":317.7,"AGE_MA_UNCERTAINTY":2.7,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.98,"NUMBER_OF_ANALYSES":25,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":"GA6275","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Geoscience Australia","AGE_INTERPRETED_FROM_SOURCE":"Age of magmatic crystallization of (meta-)igneous rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"magmatic","AGE_SOURCE":"Updated from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 20 September 2019","PROJECT":null,"STRATNO":14620,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU14620","STRAT_UNIT_NAME":"Ootann Supersuite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Ootann Supersuite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid igneous rock","LITHOLOGY":"porphyry","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"The sample (4 kg, representing 2 m of core downhole) is from a quartz-feldspar porphyry dyke cutting Silurian (435-425 Ma) Nundah Granodiorite. Based on geological relationships and texture, the dyke is assumed to be Carboniferous. Similar dykes have been mapped and identified in boreholes throughout the region but none have been dated. The dyke is likely to be pervasively altered and mineralised (Au+-Mo). Au and Mo mineralisation is thought to be genetically related to Carboniferous hypabyssal felsic magmatism - possibly of the same age (broadly) as the sampled dyke.","SAMPLING_FEATURE_NAME":"MMD-1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH576131","BOREHOLE_TOP_DEPTH_M":171.3,"BOREHOLE_BASE_DEPTH_M":173.5,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-17.1177059423,"LONG_GDA94":144.1205159532,"ELEV_M_AHD":325,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Kositcin, N.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"70207","AGE_REF":"Kositcin, N., Bultitude, R.J., Purdy, D.J., Brown, D.D., Carr, P.A., Lisitsin, V., 2015. Summary of results. Joint GSQ-GA geochronology project: Kennedy Igneous Association, Mossman Orogen, Thomson Orogen and Iron Range Province, 2013-2014. Queensland Geological Record, 2015/03, 154p.","AGE_PUBLICATION_LINKS":"https://geoscience.data.qld.gov.au/report/cr093982","AGE_ENTRY_DATE":"2015-05-27","AGE_LAST_UPDATED":"2020-11-02"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.6469","geometry":{"type":"Point","coordinates":[119.27088,-27.11706]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":6469,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1929702","IGSN":"10273/AU1929702","SAMPLENO":1929702,"SAMPLE_ID":"184108","AGE_MA":2701,"AGE_MA_UNCERTAINTY":4,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"not captured","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"U/Pb not captured","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"age of igneous crystallization","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSWA","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"monzogranite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Monzogranite","SAMPLING_FEATURE_NAME":"184108","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS435030","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Yilgarn Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-27.11706,"LONG_GDA94":119.27088,"ELEV_M_AHD":536,"ACCURACY_M":20,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Geological Survey of Western Australia (GSWA)","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Geological Survey of Western Australia geochronology dataset","AGE_PUBLICATION_LINKS":"http://geodownloads.dmp.wa.gov.au/downloads/Geochron/pdfs/184108.1.pdf","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2021-01-14"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15450","geometry":{"type":"Point","coordinates":[135.9930492,-34.72344901]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15450,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11083858","IGSN":"10.60494/50k4-n818","SAMPLENO":11083858,"SAMPLE_ID":"CDQGN","AGE_MA":1850,"AGE_MA_UNCERTAINTY":1.2,"AGE_CONFIDENCE_LEVEL":"2 standard error","AGE_MSWD":0.9,"NUMBER_OF_ANALYSES":19,"CALCULATION_TYPE":"arithmetic mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"Kober evaporation: Kober evaporation","ANALYTICAL_COLLECTION_SYSTEM":"TIMS: Finnigan MAT 262","LABORATORY_NAME":"The Open University, UK","AGE_INTERPRETED_FROM_SOURCE":"metamorphic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":5603,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU5603","STRAT_UNIT_NAME":"Donington Suite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Cape Donington Quartz Gabbro Norite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metamorphosed basic igneous rock","LITHOLOGY":"gabbronorite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"CDQGN","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS1008564","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-34.7234490057,"LONG_GDA94":135.993049198,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"published report, method unknown","LOCATION_DESC":"Cape Donington, Eyre Peninsula","SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Bodorkos, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"74358","AGE_REF":"Courtney-Davies, L., Ciobanu, C.L., Tapster, S.R., Cook, N.J., Ehrig, K., Crowley, J.L., Verdugo-Ihl, M.R.,, Wade, B.P., Condon, D.J., 2020. Opening the magmatic-hydrothermal window: High-precision U-Pb geochronology of the Mesoproterozoic Olympic Dam Cu-U-Au-Ag deposit, South Australia. 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This sample (LA19CSV144) of the Puna Kura Kura Formation is a moderately sorted, medium-grained, feldspathic sandstone collected from a ridge ~40 km southwest of Kings Canyon.","SAMPLING_FEATURE_NAME":"LA19CSV144","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS646421","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Amadeus Region","REGION_NAME_SOURCE":null,"STATE":"NT","COUNTRY":"AUS","LAT_GDA94":-24.3708158815,"LONG_GDA94":131.1938533356,"ELEV_M_AHD":null,"ACCURACY_M":null,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Kositcin, N.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73119","AGE_REF":"Kositcin, N., Verdel, C., Normington, V.J., Simmons, J.M., 2021. Summary of results. Joint NTGS-GA geochronology project: western Amadeus Basin, July-August 2020. 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Towards an understanding of the age and origin of mesothermal gold mineralisation in the Etheridge Goldfield, Georgetown region, north Queensland. 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The sample is a strongly altered phyllitic metasedimentary rock and consists primarily of quartz (25%), hematized albite (30%), actinolite (20%), and diopside (5%), with minor biotite, chlorite, epidote, and calcite veinlets. Accessory phases include titanite and chalcopyrite.","SAMPLING_FEATURE_NAME":"MEQ-91-39","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH1042030","BOREHOLE_TOP_DEPTH_M":228.1,"BOREHOLE_BASE_DEPTH_M":228.1,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-21.54,"LONG_GDA94":140.5017,"ELEV_M_AHD":395,"ACCURACY_M":500,"LOCATION_METHOD":"company supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Duncan, R.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"66913","AGE_REF":"Duncan, R.J., Stein, H.J., Evans, K.A., Hitzman, M.W., Nelson, E.P., Kirwin, D.J., 2011. 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A geochronological framework for the Gawler Craton, South Australia. 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Australian Journal of Earth Sciences, 63(6), 701-730.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099.2016.1233456","AGE_ENTRY_DATE":"2021-01-15","AGE_LAST_UPDATED":"2024-12-19"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.7612","geometry":{"type":"Point","coordinates":[119.18723871,-29.87182554]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":7612,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1573447","IGSN":"10273/AU1573447","SAMPLENO":1573447,"SAMPLE_ID":"168962","AGE_MA":2729,"AGE_MA_UNCERTAINTY":9,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"not captured","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"U/Pb not captured","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"maximum depositional age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSWA","PROJECT":null,"STRATNO":74240,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU74240","STRAT_UNIT_NAME":"pelitic and psammitic sedimentary rocks 74240","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metasedimentary siliciclastic rock","LITHOLOGY":"sandstone","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"metasandstone","SAMPLING_FEATURE_NAME":"168962","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS127173","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Yilgarn Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-29.87182554,"LONG_GDA94":119.1872387107,"ELEV_M_AHD":505,"ACCURACY_M":50,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Nelson, D.R.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Geological Survey of Western Australia geochronology dataset","AGE_PUBLICATION_LINKS":"http://geodownloads.dmp.wa.gov.au/downloads/Geochron/pdfs/168962.1.pdf","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2021-01-14"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.7853","geometry":{"type":"Point","coordinates":[123.99559,-19.1222]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":7853,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU6661282","IGSN":"10273/AU6661282","SAMPLENO":6661282,"SAMPLE_ID":"136069.1","AGE_MA":498,"AGE_MA_UNCERTAINTY":7,"AGE_CONFIDENCE_LEVEL":"1 standard deviation","AGE_MSWD":null,"NUMBER_OF_ANALYSES":1,"CALCULATION_TYPE":"single analysis","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"maximum depositional age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSWA","PROJECT":null,"STRATNO":72737,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU72737","STRAT_UNIT_NAME":"Acacia Sandstone Member","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Acacia Sandstone Member","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"siliciclastic sedimentary rock","LITHOLOGY":"quartz sandstone","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"MCLARTY HILLS_136069.1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS649043","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Canning Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-19.1222,"LONG_GDA94":123.99559,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Wingate, MTD 2007, 136069: quartz sandstone, Looma 1; 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Molybdenite grains (<4 mm) occur as intergrowths with chalcopyrite and pyrite in the breccias matrix. Supergene alteration has led to the partial replacement of chalcopyrite by chalcocite.","SAMPLING_FEATURE_NAME":"LEQ0105","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH1042028","BOREHOLE_TOP_DEPTH_M":205.1,"BOREHOLE_BASE_DEPTH_M":205.1,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-21.576749053,"LONG_GDA94":140.4800877341,"ELEV_M_AHD":419,"ACCURACY_M":10,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Duncan, R.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"66913","AGE_REF":"Duncan, R.J., Stein, H.J., Evans, K.A., Hitzman, M.W., Nelson, E.P., Kirwin, D.J., 2011. A new geochronological framework for mineralization and alteration in the Selwyn-Mount Dore corridor, Eastern Fold Belt, Mount Isa Inlier, Australia: Genetic implications for iron oxide copper-gold deposits. Economic Geology, 106/2, 169-192.","AGE_PUBLICATION_LINKS":"Not Available","AGE_ENTRY_DATE":"2026-05-08","AGE_LAST_UPDATED":"2026-06-09"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.7159","geometry":{"type":"Point","coordinates":[128.08562,-26.3836]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":7159,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU6661096","IGSN":"10273/AU6661096","SAMPLENO":6661096,"SAMPLE_ID":"184146.1","AGE_MA":1201,"AGE_MA_UNCERTAINTY":6,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.4,"NUMBER_OF_ANALYSES":23,"CALCULATION_TYPE":"concordia (Ludwig)","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"age of igneous crystallization","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSWA","PROJECT":null,"STRATNO":39078,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU39078","STRAT_UNIT_NAME":"Pitjantjatjara Supersuite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Pitjantjatjara Supersuite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"syenogranite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"COOPER_184146.1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS648857","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Musgrave Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-26.3836,"LONG_GDA94":128.08562,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Kirkland, CL, Wingate, MTD, Bodorkos, S and Smithies, RH 2009, 184146: syenogranite, Borrows Hill; Geochronology Record 823: Geological Survey of Western Australia, 4p.","AGE_PUBLICATION_LINKS":"http://geodownloads.dmp.wa.gov.au/downloads/Geochron/pdfs/184146.1.pdf","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2020-11-16"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.3716","geometry":{"type":"Point","coordinates":[151.78739952,-29.63381987]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":3716,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU2105111","IGSN":"10273/AU2105111","SAMPLENO":2105111,"SAMPLE_ID":"2010016003","AGE_MA":252.3,"AGE_MA_UNCERTAINTY":2,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.15,"NUMBER_OF_ANALYSES":27,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":"GA6139","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Geoscience Australia","AGE_INTERPRETED_FROM_SOURCE":"Age of magmatic crystallization of (meta-)igneous rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"[Magee et al. (2023; https:doi.org/10.5194/gchron-5-1-2023) quoted this same weighted mean with a 95% confidence interval of 2.1 Ma, because they included (via quadratic addition) the uncertainty of 0.27% (2sigma) associated with the reference 206Pb/238U value for TEMORA2 determined via IDTIMS (which is dominated by the uncertainty in U/Pb of the tracer solution; see Black et al. 2004). Including this additional component of uncertainty facilitated direct comparison with CA-TIMS analyses from the same zircon population (Magee et al. 2023).]","AGE_SOURCE":"Inserted from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 23 October 2019","PROJECT":null,"STRATNO":6143,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU6143","STRAT_UNIT_NAME":"Emmaville Volcanics","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid volcanic rock","LITHOLOGY":"volcaniclastic rock","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"volcaniclastic rock","SAMPLING_FEATURE_NAME":"2010016003","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS529173","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"New England Region","REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-29.6338198735,"LONG_GDA94":151.7873995204,"ELEV_M_AHD":1079,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Cross, A.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"69188; 74357","AGE_REF":"Cross, A.J., Blevin, P.L., 2013. Summary of results for the joint GSNSW-GA geochronology project: New England Orogen 2009-2010. Geoscience Australia. Record, 2013/27, 79p.; Magee, C.W., Bodorkos, S., Lewis, C.J., Crowley, J.L., Wall, C.J., Friedman, R.M., 2023. Examination of the accuracy of SHRIMP U-Pb geochronology based on samples dated by both SHRIMP and CA-TIMS. 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Granite genesis and basin formation in an extensional setting: the magmatic history of the northernmost New England Orogen. 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(2024): Underlying the Renmark Group of the Murray Basin in NDI drillhole NDIAW_D04_CT_90 (and NDIAW_D04_CT_80) is a succession of siltstones-sandstones and minor diamictites, interpreted to represent an older basin sequence unknown to the Alawoona area prior to drilling. Palynological characterisation and dating indicates they are Early Permian (Sakmarian) sedimentary rocks of the Nadda Basin (Stoian & Wise, 2023), based on well preserved palynomorphs including Barakarites rotatus, Densoisporites solidus, Macrobaculispora tantula, Densoisporites playfordii and Potonieisporites neglectus, and pollen of Plicatipollenites gondwanensis, P. malabarensis and Cycadopites cymbatus. Sample R3976276 was collected over two intervals (478.20-478.45 m and 480.38-481.08 m), and is a fine-grained sandstone with argillite (mudstone) laminae. In appearance it is a soft grey to brown rock with a sandy friable texture. Minor grey lithic fragments are sparsely scattered through the rock. In thin section, this sample displays a clastic sedimentary texture with weak lamination. Two types of laminae define primary bedding in the sandstone: (1) Dominant sandstone composed of abundant crystal fragments (quartz >> feldspars >> garnet, tourmaline, carbonate) and minor lithic fragments (metapelite, intraformational argillite) in a fine-grained clay matrix. Some of the clastic components (garnet, tourmaline, foliated biotite-muscovite meta-pelitic sediments) indicate a low- to medium-grade metasedimentary source. Quartz occurs as abundant clastic grains c. 0.2-0.4 mm in size (medium sand-size) but some range up to c. 2 mm (very coarse sand). Most are fragments of single unstrained grains, but some polycrystalline metamorphic quartz fragments are observed. Other minerals occur in trace amounts as subrounded grains. Some lithic fragments are ragged intraformational elongate fragments ripped form the interbedded argillite laminae, and some represent metapelitic/silty sediments composed of quartz clasts with foliated biotite and muscovite. Very fine-grained matrix between the clastic grains is composed of colourless to very pale brown, massive, clay (very low birefringence, possibly kaolinite). (2) Minor muddy laminae originally composed of abundant detrital clay minerals with minor clastic quartz. The same muddy material provided the minor intraformational fragments in the sandstone. Post-depositional processes, including dewatering and diagenesis, resulted in recrystallisation of the clays in the argillite laminae, producing new sericite/muscovite with preferred orientation in the plane of layering. This microstructure is interpreted as a mimicking of the compaction microtexture in the precursor detrital clays. 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Permo-Carboniferous gold epoch of northeast Queensland. 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NOTE: SARIG Drillhole database cites that this sample is from drillhole DCDH001.","SAMPLING_FEATURE_NAME":"DCDH001","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH927312","BOREHOLE_TOP_DEPTH_M":304.55,"BOREHOLE_BASE_DEPTH_M":306.23,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-28.5098049407,"LONG_GDA94":136.3580499631,"ELEV_M_AHD":57,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2018-06-13","SAMPLE_ORIGINATOR":"Bockmann, M.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"76114","AGE_REF":"Bockmann, M.J., Payne, J.L., Hand, M., Morrissey, L.J., Belperio, A.P., 2023, Linking the Gawler Craton and Mount Isa Province through hydrothermal systems in the Peake and Denison Domain, northeastern Gawler Craton. 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S-type granite from the Berridale batholith. Ickert and Williams 2011 paraphrased: \"The dominant rock types in the Berridale–Kosciuszko region are granodiorite and granite, with subordinate tonalite. Gabbroic and dioritic rocks are rare and only occur in association with plutons of the Jindabyne Suite, or as small stocks in the metasedimentary screen between the Berridale and Kosciuszko Batholiths (Hine et al. 1978). Cross-cutting relationships constrain the relative ages of three pulses of magmatic activity. The earliest phase is represented by two, small volume I-type granodiorite plutons intruded to the south, the Finister and Merumbago plutons. The Finister pluton is cut by the I-type Buckleys Lake pluton and the S-type Numbla Vale pluton. Next are voluminous S-type granodiorite and granite, which typically occur as largely elliptical individual intrusions that combine to form large composite bodies.\"","SAMPLING_FEATURE_NAME":"BB53","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS574899","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Lachlan Region","REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-36.88763,"LONG_GDA94":148.73506,"ELEV_M_AHD":785,"ACCURACY_M":200,"LOCATION_METHOD":"other method","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Champion, D.C.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"67060","AGE_REF":"Ickert, R.B., Williams, I.S., 2011. U-Pb zircon geochronology of Silurian-Devonian granites in southeastern Australia: implications for the timing of the Benambran Orogeny and the I-S dichotomy. Australian Journal of Earth Sciences, 58(5), 501-516.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099.2011.562922","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.6546","geometry":{"type":"Point","coordinates":[119.4996,-28.0485]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":6546,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU6660875","IGSN":"10273/AU6660875","SAMPLENO":6660875,"SAMPLE_ID":"165365.1","AGE_MA":2686,"AGE_MA_UNCERTAINTY":5,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"not captured","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"U/Pb not captured","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"age of igneous crystallization","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSWA","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":null,"LITHOLOGY":null,"MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"YOUANMI_165365.1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS648636","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Yilgarn Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-28.0485,"LONG_GDA94":119.4996,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Geological Survey of Western Australia geochronology dataset","AGE_PUBLICATION_LINKS":"http://geodownloads.dmp.wa.gov.au/downloads/Geochron/pdfs/165365.1.pdf","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2021-01-14"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.7769","geometry":{"type":"Point","coordinates":[128.3035,-24.543]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":7769,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU6661333","IGSN":"10273/AU6661333","SAMPLENO":6661333,"SAMPLE_ID":"199407.1","AGE_MA":1119,"AGE_MA_UNCERTAINTY":13,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.1,"NUMBER_OF_ANALYSES":11,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"maximum depositional age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSWA","PROJECT":null,"STRATNO":33810,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU33810","STRAT_UNIT_NAME":"Kulail Sandstone","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Kulail Sandstone","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"medium-coarse grained siliciclastic rock","LITHOLOGY":"sandstone","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"RAWLINSON_199407.1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS649094","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Amadeus Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-24.543,"LONG_GDA94":128.3035,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Wingate, MTD, Kirkland, CL and Haines, PW 2015, 199407: sandstone, Robert Range; 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U-Pb geochronological constraints on the genesis of the Olympic Dam Cu-U-Au-Ag deposit, South Australia. Economic Geology, 90(5), 1046-1063.","AGE_PUBLICATION_LINKS":"https://doi.org/10.2113/gsecongeo.90.5.1046","AGE_ENTRY_DATE":"2025-11-18","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.1060","geometry":{"type":"Point","coordinates":[135.02510145,-22.4938429]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":1060,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU2152595","IGSN":"10273/AU2152595","SAMPLENO":2152595,"SAMPLE_ID":"HU13JAW002","AGE_MA":490,"AGE_MA_UNCERTAINTY":20,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.05,"NUMBER_OF_ANALYSES":14,"CALCULATION_TYPE":"lower concordia intercept","GEOLOGICAL_EVENT":"isotopic resetting","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"238U/206Pb and 207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"GA6234","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Geoscience Australia","AGE_INTERPRETED_FROM_SOURCE":"Age of isotopic resetting","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"NA","AGE_SOURCE":"Updated from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 20 September 2019","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Biotite Granite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"drill chips/cuttings","SAMPLE_DESC":"A sample of strongly foliated biotite granite was collected for SHRIMP U-Pb zircon geochronology from drillhole DDNT-12-2 from the Perenti Prospect. 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The sample selected for geochronology was collected away from the alteration halo, in strongly foliated granite comprises biotite, microcline, plagioclase and quartz.","SAMPLING_FEATURE_NAME":"DDNT12-2","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH620842","BOREHOLE_TOP_DEPTH_M":66.29,"BOREHOLE_BASE_DEPTH_M":70.03,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NT","COUNTRY":"AUS","LAT_GDA94":-22.4938429005,"LONG_GDA94":135.0251014507,"ELEV_M_AHD":532,"ACCURACY_M":999,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Kositcin, N.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"69510","AGE_REF":"Kositcin, N., Whelan, J.A., Hallett, L., Beyer, E.E., 2014. Summary of results. Joint NTGS-GA geochronology project: Amadeus Basin, Arunta Region and Murphy Province July 2012-June 2013. 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Amira P438 Final Report: Cloncurry Base Metals and Gold, 4(19).","AGE_PUBLICATION_LINKS":null,"AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2026-02-18"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15886","geometry":{"type":"Point","coordinates":[139.478029,-20.724705]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15886,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11086409","IGSN":"10.60494/bst0-4m92","SAMPLENO":11086409,"SAMPLE_ID":"MG03041","AGE_MA":1372,"AGE_MA_UNCERTAINTY":41,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":13,"NUMBER_OF_ANALYSES":4,"CALCULATION_TYPE":"isochron","GEOLOGICAL_EVENT":"mineralisation","ISOTOPIC_SYSTEM":"Re/Os","ISOTOPIC_RATIO":"187Re/187Os and 187Os/188Os","MINERAL":"Whole rock","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"acid digestion: Carius tube dissolution","ANALYTICAL_COLLECTION_SYSTEM":"TIMS: Finnigan MAT 262","LABORATORY_NAME":"La Trobe University","AGE_INTERPRETED_FROM_SOURCE":"may reflect (a) the time of Cu deposition, (b) the time of a hydrothermal event that reset the Re-Os signature of the Cu ore or (c) mixing of the Re-Os isotope systematics between the host rocks and Cu-bearing fluids","OTHER_AGE_INTERPRETED_FROM_SOURCE":"may reflect (a) the time of Cu deposition, (b) the time of a hydrothermal event that reset the Re-Os signature of the Cu ore or (c) mixing of the Re-Os isotope systematics between the host rocks and Cu-bearing fluids","AGE_REMARK_FROM_SOURCE":"Isochron age generated from SAMPLEIDs AW02025, MG02070, MG02393, and MG03041.","AGE_SOURCE":null,"PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"mineralisation","LITHOLOGY":"dolostone","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"unknown","SAMPLE_DESC":"Cu-ore 650 orebody; Chalcopyrite, pyrrhotite, pyrite and dolomite","SAMPLING_FEATURE_NAME":"MOUNT ISA COPPER","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS1041922","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-20.724705,"LONG_GDA94":139.478029,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"satellite image","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Gregory, M.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"64367","AGE_REF":"Gregory, M.J., Schaefer, B.F., Keays, R.R., Wilde, A.R., 2008. Rhenium-osmium systematics of the Mount Isa copper orebody and the Eastern Creek Volcanics, Queensland, Australia: implications for ore genesis. Mineralium Deposita, 43(5), 553-573.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1007/s00126-008-0182-6","AGE_ENTRY_DATE":"2026-05-08","AGE_LAST_UPDATED":"2026-06-09"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.13724","geometry":{"type":"Point","coordinates":[141.03425892,-31.68362234]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":13724,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1697542","IGSN":"10273/AU1697542","SAMPLENO":1697542,"SAMPLE_ID":"R930587","AGE_MA":1793,"AGE_MA_UNCERTAINTY":8,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.19,"NUMBER_OF_ANALYSES":8,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"GA6005","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"Maximum depositional age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metasedimentary rock","LITHOLOGY":"sandstone","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"This sample is a siliceous metasediment, collected from Polygonum DD 95 SR1 303-307.7 m. The drill core rock sample is composed mostly of fine-grained even-grained translucent pale grey rock. Scattered irregularly through the rock are dark greenish black diffuse patches, commonly with relatively coarse-grained yellowish ragged sulphide grains.  In thin section, this sample displays a massive, even-grained granoblastic metamorphic texture with very little or no evident retrogressive alteration. Quartz dominates the rock, occurring as small equant anhedral grains ~0.2-0.4 mm in size. They form a more or less equigranular sutured granoblastic mosaic throughout the rock. Feldspar (plagioclase) occurs in minor amount forming small albite-twinned anhedral grains that tend to form interstices between slightly larger quartz grains. Muscovite occurs mostly as small but well-crystallised ragged flakes ~0.1-0.2 mm in size. A weak preferred orientation defines a weak foliation. Larger flakes up to ~0.4 mm long are intimately intergrown with chalcopyrite, magnetite, hematite and chlorite in coarser-grained patches. Magnetite is disseminated sparsely throughout the rock as small equant crystals of subhedral cubic morphology. Their average size is ~0.2 mm. Chalcopyrite is present in minor amounts. In places it forms relatively large ragged patches up to ~ 2mm in size, and these tend to be intergrown with similarly coarser-grained muscovite and hematite. Chalcopyrite also occurs as tiny ragged grains sparsely and irregularly disseminated through the rock, in places in granoblastic relationship with principal metamorphic minerals (i.e. quartz, muscovite, magnetite). Chlorite is present in minor amount, forming fine-grained pleochroic green aggregates intimately intergrown with coarser-grained chalcopyrite, hematite, muscovite and magnetite.  Pyrite and rutile are rare.","SAMPLING_FEATURE_NAME":"R930587","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS363482","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Broken Hill Region","REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-31.6836223351,"LONG_GDA94":141.0342589173,"ELEV_M_AHD":135,"ACCURACY_M":50,"LOCATION_METHOD":"unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2006-04-03","SAMPLE_ORIGINATOR":"Jagodzinski, E.A.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75054","AGE_REF":"Jagodzinski, E.A., Kositcin, N., Michael, U., Bodorkos, S., 2023, 2023 data release of U-Pb dates for the Curnamona Province in South Australia: advances in the stratigraphy of the Olary Domain. Australian Earth Sciences Convention, Perth, June 2023. 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A geochronological framework for the Gawler Craton, South Australia. 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porphyry","MODE_OF_OCCURRENCE":"dyke","SAMPLE_TYPE":"unknown","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"ISABEL","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS1083017","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-17.38563,"LONG_GDA94":145.36319,"ELEV_M_AHD":null,"ACCURACY_M":99,"LOCATION_METHOD":"map","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Kumar, A.A.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"76531","AGE_REF":"Kumar, A.A., Sanislav, I.V., Dirks, P.H.G.M., 2022, The geological setting of the indium-rich Baal Gammon and Isabel Sn-Cu-Zn deposits in the Herberton Mineral Field, Queensland, Australia. Ore Geology Reviews, 149.","AGE_PUBLICATION_LINKS":"https://doi.org/doi.org/10.1016/j.oregeorev.2022.105095","AGE_ENTRY_DATE":"2026-06-09","AGE_LAST_UPDATED":"2026-06-09"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.13768","geometry":{"type":"Point","coordinates":[140.36319214,-20.89473487]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":13768,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU2678686","IGSN":"10273/AU2678686","SAMPLENO":2678686,"SAMPLE_ID":"ASMI0134","AGE_MA":1705,"AGE_MA_UNCERTAINTY":11,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.38,"NUMBER_OF_ANALYSES":12,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"GA6366","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Geoscience Australia","AGE_INTERPRETED_FROM_SOURCE":"Maximum depositional age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":28185,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU28185","STRAT_UNIT_NAME":"Answer Slate","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Answer Slate (INFORMAL_UNIT_NAME updated in 2025 using Queensland Detailed Solid Geology WMS)","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"siliciclastic sedimentary rock","LITHOLOGY":"sandstone","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"This sample was collected from the northern part of the Marimo–Staveley Domain in the Slaty Creek area where slices of Answer Slate (dominantly carbonaceous cleaved mudstone) alternate with Staveley Formation (typically calcareous sandstone and siltstone passing into calc-silicate granofels). Some slices of Roxmere Quartzite (mostly very thick bedded, amalgamated lithic sublabile sandstone) also occur. The outcrop sampled consists of well-sorted, very thick-bedded, medium- to coarse-grained, quartzofeldspathic sandstone to granule conglomerate. The beds are mostly massive, but rare crossbedding is present. In thin section, the sample consists of a mosaic of interlocking quartz and subordinate feldspar grains 0.05–0.25 mm and accessory opaque oxides grains. The absence of mica indicates that the sandstone was originally well sorted with no clay matrix. The rocks are currently mapped within a less carbonaceous subunit Answer Slates as depicted on the Marraba 1:100 000 Geological map (Withnall et al., 2015). That subunit is described as “brown phyllite or fine-grained mica schist and graphitic slate” on the map legend, and because such massive, coarse-grained sandstone as observed in 2017 at this site and several other sites are not typical of either the Staveley Formation or Answer Slate in general, we speculated that they might represent slices of Roxmere Quartzite. 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Australian Journal of Earth Sciences, 54(8), 1089-1102.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120090701615733","AGE_ENTRY_DATE":"2025-11-18","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.7010","geometry":{"type":"Point","coordinates":[119.86816,-21.2833]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":7010,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU6661058","IGSN":"10273/AU6661058","SAMPLENO":6661058,"SAMPLE_ID":"178034.1","AGE_MA":3318,"AGE_MA_UNCERTAINTY":3,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.99,"NUMBER_OF_ANALYSES":14,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"age of igneous crystallization","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"A U-Th-Pb monazite date of 3316 +/- 2 Ma, interpreted as the age of igneous crystallization of the granodiorite, was determined on the same sample by Nelson (178034.2)","AGE_SOURCE":"GSWA","PROJECT":null,"STRATNO":68766,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU68766","STRAT_UNIT_NAME":"Emu Pool Supersuite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Mount Edgar Granitoid Complex","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granodiorite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"MARBLE BAR_178034.1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS648819","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Pilbara Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-21.2833,"LONG_GDA94":119.86816,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Nelson, DR 2005, 178034: foliated muscovite granodiorite, Cotton Well; Geochronology Record 558: Geological Survey of Western Australia, 4p.","AGE_PUBLICATION_LINKS":"http://geodownloads.dmp.wa.gov.au/downloads/Geochron/pdfs/178034.1.pdf","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2020-11-16"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.7770","geometry":{"type":"Point","coordinates":[119.96334761,-21.65493912]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":7770,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1576346","IGSN":"10273/AU1576346","SAMPLENO":1576346,"SAMPLE_ID":"168909","AGE_MA":3311,"AGE_MA_UNCERTAINTY":9,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.1,"NUMBER_OF_ANALYSES":6,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"maximum depositional age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSWA","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"vitric tuff, Gilbert Cairn","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous volcanic rock","LITHOLOGY":"ash tuff","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"vitric tuff","SAMPLING_FEATURE_NAME":"168909","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS127086","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Pilbara Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-21.6549391248,"LONG_GDA94":119.9633476148,"ELEV_M_AHD":411,"ACCURACY_M":50,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Nelson, D.R.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Nelson, DR 2001, 168909: vitric tuff, Gilbert Cairn; Geochronology Record 223: Geological Survey of Western Australia, 4p.","AGE_PUBLICATION_LINKS":"http://geodownloads.dmp.wa.gov.au/downloads/Geochron/pdfs/168909.1.pdf","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2020-11-16"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.525","geometry":{"type":"Point","coordinates":[123.11482416,-22.78973535]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":525,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1694718","IGSN":"10273/AU1694718","SAMPLENO":1694718,"SAMPLE_ID":"2005670186","AGE_MA":1577,"AGE_MA_UNCERTAINTY":1.9,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.75,"NUMBER_OF_ANALYSES":27,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"Z4816","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"Age of magmatic crystallization of (meta-)igneous rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Twenty-nine analyses were carried out, with two grains analysed twice in different sites to determine if there was any difference between zones of differing brightness. The darkest grains in CL were generally avoided to reduce the possibility of analysing zircon with radiation damage, but three dark grains were analysed to check if there was any difference in age. All analyses form a concordant to near-concordant group, with U contents of 235-1998 ppm, relatively uniform Th/U (0.39-0.80), and a range of 207Pb*/206Pb* dates between c. 1597 Ma and 1563 Ma. Twenty-seven of the analyses form a statistically coherent grouping with a weighted mean date of 1577.0 +/- 1.9 Ma (MSWD = 0.75, probability of equivalence = 0.81). The remaining two analyses have marginally younger dates of c. 1566 Ma and 1563 Ma. One of these analyses (1.2) has the highest U content (1843 ppm), and does not form a statistically coherent pairing with a second analysis from the centre of the same grain (1.1). The other (27.1) also has high U (1998 ppm) and has the highest measured counts proportion of common Pb. These two analyses might have been affected by minor ancient loss of radiogenic Pb.The weighted mean 207Pb/206Pb date of 1577.0 +/- 1.9 Ma for the main grouping is interpreted to represent the magmatic crystallization age of the granite.","AGE_SOURCE":"Updated from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 20 September 2019","PROJECT":null,"STRATNO":31857,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU31857","STRAT_UNIT_NAME":"Krackatinny Supersuite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Krackatinny Supersuite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"monzogranite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Small, isolated outcrops of relatively unweathered granitoid occur in the northeastern margin of the exposed Tabletop Zone, within a broader area of scattered amphibolite exposures. A small granitoid was sampled to test the age of the Krackatinny Supersuite in this area (MGA 511785E 7479760N). The sampled granitoid consists of quartz, K-feldspar, biotite with K-feldspar phenocrysts to 1 cm overprinted by a relatively strongly developed, steeply dipping foliation defined by flattened aggregates of biotite, feldspar and quartz. Irregular, biotite-poor leucogranite veins 1-4 cm thick intrude the granite and post-date the high-grade foliation. Some veins are broadly conformable with the foliation, but lack the foliation and contain small xenoliths of foliated biotite-granitoid, while others more clearly crosscut the foliation and earlier leucogranite veins. Although the outcrops in this area are mapped as plagioclase-phyric tonalite (Bagas, 1999), the outcrops examined in this study were more K-feldspar-rich and the granitoid is better termed a monzogranite at this location. The granitoid sampled for dating is comprised of partially sericitized K-feldspar, quartz, biotite and plagioclase. Oriented biotite associated with recrystallized, medium-grained zones of quartz and K-feldspar defines the dominant foliation, which wraps around domains of coarse-grained K-feldspar, quartz and biotite. Minor hornblende is present, with accessory zircon and titanite, and epidote replaces biotite in places.","SAMPLING_FEATURE_NAME":"2005670186","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS361224","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Paterson Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-22.789735351,"LONG_GDA94":123.1148241581,"ELEV_M_AHD":310,"ACCURACY_M":10,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Maidment, D.W.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"71169","AGE_REF":"Maidment, D.W., 2017. Geochronology of the Rudall Province, Western Australia: Implications for the amalgamation of the West and North Australian Cratons. Geological Survey of Western Australia. Report, 161, 95p.","AGE_PUBLICATION_LINKS":"https://geodocs.dmirs.wa.gov.au/Web/documentlist/3/Combined/N15BJ","AGE_ENTRY_DATE":"2016-04-11","AGE_LAST_UPDATED":"2020-11-02"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.8215","geometry":{"type":"Point","coordinates":[123.95852011,-28.65554786]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":8215,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1839636","IGSN":"10273/AU1839636","SAMPLENO":1839636,"SAMPLE_ID":"2004967500","AGE_MA":2682,"AGE_MA_UNCERTAINTY":5,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.8,"NUMBER_OF_ANALYSES":13,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"GA6009","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP RG","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"magmatic age of the dominant component of the meta-sandstone","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"original publication","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"meta-sandstone, Toppin Hill","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"medium-coarse grained siliciclastic rock","LITHOLOGY":"sandstone","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"foliated, weakly altered, medium-grained metasandstone (feld>qtz; blue qtz)","SAMPLING_FEATURE_NAME":"YMD002","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH406720","BOREHOLE_TOP_DEPTH_M":113.9,"BOREHOLE_BASE_DEPTH_M":115.5,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":"Eastern Yilgarn","STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-28.6555478614,"LONG_GDA94":123.9585201061,"ELEV_M_AHD":437,"ACCURACY_M":50,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Cassidy, K.F.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"68154","AGE_REF":"Sircombe, K.N., Cassidy, K.F., Champion, D.C., Tripp, G., 2007. Compilation of SHRIMP U-Pb geochronological data Yilgarn Craton, Western Australia, 2004-2006. Geoscience Australia. Record, 2007/01, 182p.","AGE_PUBLICATION_LINKS":"http://pid.geoscience.gov.au/dataset/ga/64996","AGE_ENTRY_DATE":"2021-01-21","AGE_LAST_UPDATED":"2021-01-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.3921","geometry":{"type":"Point","coordinates":[144.84364614,-34.90781736]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":3921,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU2122510","IGSN":"10273/AU2122510","SAMPLENO":2122510,"SAMPLE_ID":"PB-10-HAY-01","AGE_MA":409.4,"AGE_MA_UNCERTAINTY":5.1,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.4,"NUMBER_OF_ANALYSES":25,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"GA6160","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Geoscience Australia","AGE_INTERPRETED_FROM_SOURCE":"Age of magmatic crystallization of (meta-)igneous rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"Inserted from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 23 October 2019","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Informal name: Boorooban granite.  Sampled by GSNSW from petroleum drillhole HAY-1, in the Murray Basin.  Sampled for SHRIMP zircon geochronology.","SAMPLING_FEATURE_NAME":"Hay 1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH12024","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-34.9078173615,"LONG_GDA94":144.8436461415,"ELEV_M_AHD":88,"ACCURACY_M":50,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Fraser, G.L.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"69635","AGE_REF":"Fraser, G.L., Gilmore, P.J., Fitzherbert, J.A., Trigg, S.J., Campbell, L.M., Deyssing, L., Thomas, O.D., Burton, G.R., Greenfield, J.E., Blevin, P.L., Simpson, C.J., 2014. New SHRIMP U-Pb zircon ages from the Lachlan, southern Thomson and New England orogens, New South Wales: February 2011-June 2013. Geoscience Australia. Record, 2014/53, 217p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.11636/Record.2014.053","AGE_ENTRY_DATE":"2019-10-23","AGE_LAST_UPDATED":"2020-11-02"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15266","geometry":{"type":"Point","coordinates":[133.775495,-28.5980029]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15266,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1697539","IGSN":"10273/AU1697539","SAMPLENO":1697539,"SAMPLE_ID":"R637614","AGE_MA":1442,"AGE_MA_UNCERTAINTY":9,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":0.21,"NUMBER_OF_ANALYSES":20,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Monazite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"timing of crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":84359,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU84359","STRAT_UNIT_NAME":"Karkaro Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Morrissey et al 2019 (GeosciFrontiers): Fine-grained granite. Drill hole Karkaro 1 intersects granite with coarse- and fine-grained phases. The two phases are mineralogically identical and contain K-feldspar phenocrysts, plagioclase, quartz and minor biotite. As in hole OBD 08, plagioclase has been altered. SARIG: Granite, biotite-bearing, equigranular to alkali feldspar porphyritic, unmetamorphosed.","SAMPLING_FEATURE_NAME":"Karkaro 1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH12462","BOREHOLE_TOP_DEPTH_M":477.39,"BOREHOLE_BASE_DEPTH_M":477.57,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-28.5980029,"LONG_GDA94":133.775495,"ELEV_M_AHD":209,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2006-04-03","SAMPLE_ORIGINATOR":"Jagodzinski, E.A.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73436; 75342","AGE_REF":"Howard, K.E., 2011, Geotectonics in the Gawler Craton: Constraints from geochemistry, U-Pb geochronology and Sm-Nd and Lu-Hf isotopes. PhD thesis. University of Adelaide.; Morrissey, L.J., Barovich, K.M., Hand, M., Howard, K.E., Payne, J.L., 2019. Magmatism and metamorphism at ca. 1.45 Ga in the northern Gawler Craton: The Australian record of rifting within Nuna (Columbia). Geoscience Frontiers, 10(1), 175-194.","AGE_PUBLICATION_LINKS":"Not Available; Not Recorded","AGE_ENTRY_DATE":"2025-10-29","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15857","geometry":{"type":"Point","coordinates":[143.81699,-19.171981]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15857,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11086361","IGSN":"10.60494/wnts-fa40","SAMPLENO":11086361,"SAMPLE_ID":"75301325 sericite","AGE_MA":400,"AGE_MA_UNCERTAINTY":4,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":4,"CALCULATION_TYPE":"arithmetic mean","GEOLOGICAL_EVENT":"mineralisation","ISOTOPIC_SYSTEM":"K/Ar","ISOTOPIC_RATIO":"40K/40Ar","MINERAL":"Sericite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"unknown: unknown","ANALYTICAL_COLLECTION_SYSTEM":"unknown: unknown","LABORATORY_NAME":"Australian Mineral Development Laboratories, South Australia","AGE_INTERPRETED_FROM_SOURCE":"approximate time of sericitic alteration and gold mineralisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Mean age generated from SAMPLEIDs 75301325 sericite, 75301329 sericite, 75301330 sericite, and 75301332 sericite.","AGE_SOURCE":null,"PROJECT":null,"STRATNO":24400,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU24400","STRAT_UNIT_NAME":"Mount Hogan Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Mt Hogan Granite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"unknown","SAMPLE_DESC":"Adjacent to the mineralised quartz lodes. 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Australian Journal of Earth Sciences, 45(6), 875-888.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099808728442","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2026-02-18"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.16017","geometry":{"type":"Point","coordinates":[140.022769,-20.80275]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":16017,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11086431","IGSN":"10.60494/1hsq-8728","SAMPLENO":11086431,"SAMPLE_ID":"MKED1","AGE_MA":1517,"AGE_MA_UNCERTAINTY":2.4,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":0.83,"NUMBER_OF_ANALYSES":100,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"hydrothermal alteration","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/235U","MINERAL":"Titanite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: GeoLas 193nm ArF laser ablation system","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Varian 820 series","LABORATORY_NAME":"James Cook University","AGE_INTERPRETED_FROM_SOURCE":"late stage veining and minor ore remobilisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"unknown","LITHOLOGY":"unknown","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"unknown","SAMPLE_DESC":"MKED1 titanite standard derives from euhedral, double terminated crystals measuring up to 8 cmin length associated with coarse pink calcite and minor diopside in a vein that cuts banded diopside-K-feldspar scapolite skarn rocks of the Elaine Dorothy Cu�Au�REE prospect of the Mount Isa Inlier, Queensland, Australia.","SAMPLING_FEATURE_NAME":"ELAINE DOROTHY_3","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS1041933","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-20.80275,"LONG_GDA94":140.022769,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"company supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Spandler, C.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"76474","AGE_REF":"Spandler, C., Hammerli, J., Sha, P., Hilbert-Wolf, H., Hu, Y., Roberts, E., Schmitz, M., 2016. MKED1: A new titanite standard for in situ analysis of Sm–Nd isotopes and U–Pb geochronology. Chemical Geology, 425, 110-126.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.chemgeo.2016.01.002.","AGE_ENTRY_DATE":"2026-05-08","AGE_LAST_UPDATED":"2026-06-09"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15085","geometry":{"type":"Point","coordinates":[145.32946351,-17.3836972]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15085,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU7937592","IGSN":"10273/AU7937592","SAMPLENO":7937592,"SAMPLE_ID":"QFG8965F","AGE_MA":321,"AGE_MA_UNCERTAINTY":1.5,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.42,"NUMBER_OF_ANALYSES":24,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":"GA6507","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Geoscience Australia","AGE_INTERPRETED_FROM_SOURCE":"Magmatic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Our 321.0 ± 1.5 Ma emplacement age for the UNA porphyry is a maximum age for tin mineralisation at Baal Gammon","AGE_SOURCE":null,"PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"UNA porphyry (mine unit name)","UNIT_NAME_SOURCE":"United North Australian (UNA) porphyry","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"quartz feldspar porphyry","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"The Herberton tin-tungsten field is located within Paleozoic rocks of the Mossman Orogen, ca 95 km southwest of Cairns, and includes the abandoned Baal Gammon mine alongside the road linking Watsonville and Herberton, 7 km west of Herberton township. Felsic rocks associated with mineralisation intrude greenschist facies, cross-bedded metasandstone of the Hodgkinson Group. Maximum ages for deposition of the Hodgkinson Group range between ca 482 Ma and ca 370 Ma (e.g. Henderson et al., 2013; Kositcin and Bultitude, 2015), and impose a maximum age constraint on the felsic igneous system. The Baal Gammon Sn-Cu-Zn-In deposit formed at the contact between metasandstone of the Hodgkinson Formation and a felsic intrusive unit informally known as the \"United North Australian (UNA) porphyry\" (e.g. Fraser, 1972). Near the UNA porphyry contact, the meta-sandstones contain garnet and andalusite indicating contact metamorphism. The tin-bearing UNA porphyry at the Baal Gammon open pit and surrounding hills is highly altered and of granitic composition. The less altered section of the UNA porphyry is composed of quartz (50%), alkali feldspar (10%), plagioclase (5%), biotite, chlorite, garnet, and sulfides, with a granophyric groundmass. The subhedral, porphyritic quartz crystals have embayments of fine-grained material similar in composition to the surrounding matrix, and commonly display a spongy texture. Most of the plagioclase and alkali feldspar are altered to sericite, and biotite is partly altered to chlorite (Kumar et al., 2022). The UNA porphyry has an irregular shape and dips ~40 degrees south. Its geological affinity is currently uncertain. Fraser (1972) suggested the UNA porphyry is part of the Late Carboniferous O'Briens Creek Supersuite/Elizabeth Creek Granite complex. The Elizabeth Creek, Koognangoona and Herberton Hill granites (O'Briens Creek Supersuite) have interpreted magmatic crystallisation ages of 321 +/- 4 Ma, 318.8 +/- 3.3 Ma and 322.2 +/- 4.4 Ma, respectively (GSQ and Fanning unpublished data; Murgulov, 2006; Murgulov et al., 2013). More recently, U-Pb zircon dating (Kumar et al., 2022) of the UNA porphyry at Baal Gammon yielded a weighted mean 206Pb/238U age of 333 +/- 2 Ma, interpreted as its igneous crystallisation age, and potentially indicating that the UNA porphyry predates O'Briens Creek Supersuite plutonism. In order to resolve this relationship, we sampled diamond drillcore from Kagara Ltd hole BG533, drilled within the open-pit of the abandoned Baal Gammon mine in 2011, which intersected the UNA porphyry at a depth of 58.0-59.85 m. The sample selected for geochronology is a fresh medium-grey, medium-grained, weakly brecciated, weakly chlorite-altered quartz porphyry with minor disseminated sulphides. The aim of dating this unit was to establish a direct temporal link between the UNA porphyry and O’Briens Creek Supersuite magmatism, and to distinguish the mineralised UNA porphyry from crosscutting, barren quartz veins and porphyries. The latter include the informally-named Felsic Quartz Porphyry (FQP), thought to be associated with the Permian Slaughter Yard Creek Volcanics (Donchak and Bultitude, 1998; Kumar et al., 2024). Other units in the area, including a quartz-feldspar porphyry dyke from the western side of the deposit, medium-grained porphyry dyke and a shallow intrusive rhyolite, yielded interpreted igneous crystallisation ages of 289 +/- 1 Ma, 288 +/- 1 Ma and 288 +/- 1 Ma, respectively (Kumar et al., 2022), and these too are likely correlatives of the Slaughter Yard Creek Volcanics. A sample of the Felsic Quartz Porphyry (FQP) from deeper in the same drillhole (BG533) was also selected for geochronology (7937591/QFG8965C) to investigate that relationship.","SAMPLING_FEATURE_NAME":"BG533","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH817760","BOREHOLE_TOP_DEPTH_M":58,"BOREHOLE_BASE_DEPTH_M":59.85,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-17.3836972037,"LONG_GDA94":145.3294635133,"ELEV_M_AHD":926,"ACCURACY_M":10,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Geological Survey of Queensland (GSQ)","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75851","AGE_REF":"Kositcin, N., Purdy, D.J., Beattie, E., Spence, J., von Gnielinski, F.E., Simpson, B.P., Platt, S., 2024. Summary of results. Joint GSQ-GA Geochronology Project: Peralkaline Magmatic Systems and Northeast Queensland Deposits projects, 2023-2024. Geoscience Australia. Record, 2024/53, 93p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.26186/149782","AGE_ENTRY_DATE":"2024-10-30","AGE_LAST_UPDATED":"2026-02-18"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15432","geometry":{"type":"Point","coordinates":[135.15608606,-34.56406896]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15432,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11083909","IGSN":"10.60494/0tc8-0g98","SAMPLENO":11083909,"SAMPLE_ID":"SB 17","AGE_MA":1721,"AGE_MA_UNCERTAINTY":3,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.2,"NUMBER_OF_ANALYSES":25,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"metamorphism","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Monazite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"high-strain zone formation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":27899,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU27899","STRAT_UNIT_NAME":"Sleaford Complex","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"migmatitic shear zone","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"SB 17","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS1008615","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-34.5640689629,"LONG_GDA94":135.1560860623,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"published report, method unknown","LOCATION_DESC":"Coffin Bay Peninsula, South Coast","SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Bodorkos, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"22544","AGE_REF":"Dougherty-Page, J.S., Foden, J., 1996. Pb-Pb zircon evaporation date for the Charleston Granite, South Australia: comparisons with other zircon geochronology techniques. Australian Journal of Earth Sciences, 43(2), 133-137.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099608728242","AGE_ENTRY_DATE":"2025-11-18","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.3691","geometry":{"type":"Point","coordinates":[53.7,-65.85]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":3691,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1466286","IGSN":"10273/AU1466286","SAMPLENO":1466286,"SAMPLE_ID":"80285045","AGE_MA":2980,"AGE_MA_UNCERTAINTY":9,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":9.9,"NUMBER_OF_ANALYSES":9,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"U8087","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Unknown","AGE_INTERPRETED_FROM_SOURCE":"Age of magmatic crystallization of (meta-)igneous rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Data migrated from OZCHRON1. 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Original comment: The complex data array is interpetable in terms of igneous crystallisation at 2980+-9 Ma (grains with Th/U about 0.5) and metamorphic resetting at 2847+-11  Ma.","AGE_SOURCE":"Inserted from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 23 October 2019","PROJECT":null,"STRATNO":13810,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU13810","STRAT_UNIT_NAME":"Napier Complex","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"BT-GNT granite","SAMPLING_FEATURE_NAME":"80285045","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS141140","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"AAT","COUNTRY":"ATA","LAT_GDA94":-65.85,"LONG_GDA94":53.7,"ELEV_M_AHD":null,"ACCURACY_M":1000,"LOCATION_METHOD":"method unknown","LOCATION_DESC":"Enderby Land. 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Jagodzinski (2005): The sample is a well-foliated gneiss with pegmatoidal lenses and disseminated alkali feldspar. The gneiss has foliations to 2 mm wide with various proportions of well-foliated biotite (20%), granular quartz (50%), fresh to sericitised plagioclase (10%) and fresh orthoclase (10%). Garnet (5%) occurs as grains to 2 mm in diameter, weakly elongate parallel to foliation, and there are discrete lenses of fibrolitic sillimanite (5%) also elongate parallel to the foliation but locally knotted and partially altered to sericite. The pegmatoidal lenses are variously rich in orthoclase or in quartz + sericitised, coarse plagioclase +/- biotite (to 3 mm in grainsize) Lenses rich in garnet and biotite also occur within the pegmatoidal zones. Metamorphic grade is upper amphibolite facies. Locally the gneiss retrogresses to schist, a grey foliated rock with pale lenses and spots. The schist comprises predominantly fine-grained quartz-biotiteplagioclase, with some albite- to sericite-altered plagioclase to 1 mm in grainsize. Lenses of quartzofeldspathic material occur with plagioclase to albite- to sericite-altered 2 mm in grainsize. Large lenses of sericite also occur, locally enclosing residual patches of garnet. Highly contorted lenses of fibrolitic sillimanite are also disseminated, to 6 cm long. Purvis (1999) interprets the gneiss to be a paragneiss, and suggests a finegrained sandstone as a possible protolith based on the fine grainsize (up to .05 mm) of the accessory minerals, apatite, zircon and monazite. R.Uppill (in Paterson and Muir 1986) suggests a possible sedimentary precursor could have been a muddy arkosic sandstone, or, alternatively, dacitic or rhyodacitic volcanic rock.","SAMPLING_FEATURE_NAME":"SHD 1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH568930","BOREHOLE_TOP_DEPTH_M":935,"BOREHOLE_BASE_DEPTH_M":937,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-30.1856260372,"LONG_GDA94":136.9987757726,"ELEV_M_AHD":107,"ACCURACY_M":25,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Jagodzinski, E.A.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"62883","AGE_REF":"Jagodzinski, E.A., 2005. Compilation of SHRIMP U-Pb geochronological data, Olympic Domain, Gawler Craton, South Australia, 2001-2003. Geoscience Australia. Record, 2005/20, 211p.","AGE_PUBLICATION_LINKS":"https://pid.geoscience.gov.au/dataset/ga/63530","AGE_ENTRY_DATE":"2025-11-18","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15741","geometry":{"type":"Point","coordinates":[142.39997049,-12.78703035]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15741,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1697360","IGSN":"10273/AU1697360","SAMPLENO":1697360,"SAMPLE_ID":"92836427","AGE_MA":397,"AGE_MA_UNCERTAINTY":2,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":65,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":"Z1540","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP I","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"Data migrated from OZCHRON1. Original comment: \"65 of the 70 analyses yield an age of 397+/-2 Ma for the crystallisation of this granite. Grains 72.1 and 81.1 are about 1550 Ma and 1800 Ma respectively. Grains 56.2 and 66.2 plot just below the main population, and grain 69.2 just above it.\"","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":"North Queensland NGMA project","STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Weipa granite","UNIT_NAME_SOURCE":"Weipa granite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"borehole specimen","SAMPLE_DESC":"Biotite granite to microgranite (S-type); sheared and altered. Fracture surfaces coated with ?epidote.","SAMPLING_FEATURE_NAME":"RN72262A","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH601064","BOREHOLE_TOP_DEPTH_M":628.95,"BOREHOLE_BASE_DEPTH_M":630.62,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-12.7870303524,"LONG_GDA94":142.3999704919,"ELEV_M_AHD":53,"ACCURACY_M":250,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Knutson, J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"72939","AGE_REF":"Geoscience Australia, 2007, Geoscience Australia SHRIMP U-Pb geochronology interim data release, July 2007. 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Geologically, this age is somewhat problematic, because it is younger (and outside error) than the weighted average age of 316.4 +/- 3.4 Ma obtained for the Bora Creek Quartz Monzodiorite which is interpreted to intrude it (see IWSC0601).","AGE_SOURCE":"GSQ compilation, 2016","PROJECT":null,"STRATNO":41799,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU41799","STRAT_UNIT_NAME":"Broadsound Range Rhyolite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Broadsound Range Rhyolite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous volcanic rock","LITHOLOGY":"ignimbrite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"ST LAWRENCE_IWSC0669","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS648598","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Proserpine Region","REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-22.745975,"LONG_GDA94":149.4504528,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"65388","AGE_REF":"Withnall, I.W., Hutton, L.J., Bultitude, R.J., von Gnielinski, F.E., Rienks, I.P., 2009. 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Chronology and tectonic framework of turbidite-hosted gold deposits in the Western Lachlan Fold Belt, Victoria: 40Ar/39Ar results. 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In particular, sample 1411199 was collected by Dredge 02 of the Cruise, from a south-facing escarpment immediately south of Eyre Terrace (Wilcox et al., 1988; Davies et al., 1988).  The sample is a moderately altered, coarse-grained, hornblende-biotite granodiorite.  The sample has not previously been dated, and was presumed at the time of collection to represent Precambrian basement.  By extrapolation of the current onshore geological province subdivision, the location of this sample suggests it may represent an offshore extension of the Madura Province. Davies et al. (1988) described the dredged plutonic rocks as strongly jointed and locally cataclastic-textured, moderately altered pink, equigranular, coarse-grained, hornblende-biotite granodiorite formed 98 percent of the haul; some clasts have sediment of fine angular granodiorite debris attached, with external limonitic cement, internally friable; alteration minerals are chlorite, epidote and clay minerals. Varieties of granodiorite were given sample identifications B-F. Texture: equicrystalline, some crystals poikioblastic. Crystals: Feldspars 60% (plagioclase 40%, perthite 15%, microcline 5%), amphiboles 10%, biotite 10%, quartz 10%. Other features: Two generations of quartz, early generation of rounded to subrounded grains or crystals enclosed within feldspars, late generation of irregular crystals filling remaining spaces. Feldspars variably weathered, rock fractured with fracture fills of iron oxides.","SAMPLING_FEATURE_NAME":"Great Australian Bight 2","SAMPLING_FEATURE_TYPE":"SURVEY","SAMPLING_FEATURE_PID":null,"BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-34.03865,"LONG_GDA94":126.7341833,"ELEV_M_AHD":-3027,"ACCURACY_M":750,"LOCATION_METHOD":"unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"1986-11-15","SAMPLE_ORIGINATOR":"Willcox, J.B.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"70748","AGE_REF":"Fraser, G.L., Neumann, N.L., 2016. Under the Nullarbor: New SHRIMP U-Pb zircon ages from the Coompana, Madura and Albany-Fraser Provinces, and Officer Basin, western South Australia and eastern Western Australia. Geoscience Australia. Record, 2016/16, 70p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.11636/Record.2016.016","AGE_ENTRY_DATE":"2019-10-23","AGE_LAST_UPDATED":"2020-11-02"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15404","geometry":{"type":"Point","coordinates":[136.79508551,-30.63774571]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15404,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11083775","IGSN":"10.60494/k32w-2388","SAMPLENO":11083775,"SAMPLE_ID":"OD23","AGE_MA":1606,"AGE_MA_UNCERTAINTY":20,"AGE_CONFIDENCE_LEVEL":"2 standard error","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Apatite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: Coherent 193nm COMPexPro 110 UV excimer laser ablation system","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7900","LABORATORY_NAME":"University of Tasmania","AGE_INTERPRETED_FROM_SOURCE":"metamorphic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":null,"LITHOLOGY":null,"MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"WMC/ACD-2","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH150044","BOREHOLE_TOP_DEPTH_M":907.2,"BOREHOLE_BASE_DEPTH_M":907.2,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-30.6377457117,"LONG_GDA94":136.7950855064,"ELEV_M_AHD":100,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"University of Adelaide","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"24261","AGE_REF":"Johnson, J.P., Cross, K.C., 1995. U-Pb geochronological constraints on the genesis of the Olympic Dam Cu-U-Au-Ag deposit, South Australia. 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A geochronological framework for the Gawler Craton, South Australia. Geological Survey of South Australia Bulletin, 55, 258p.; Teasdale, J., 1997, Methods for understanding poorly exposed terranes: the interpretive geology and tectonothemal evolution of the western Gawler Craton. Unpublished Ph.D. thesis, University of Adelaide, 182p.","AGE_PUBLICATION_LINKS":"\nhttps://hdl.handle.net/2440/19235\n; https://pid.sarig.sa.gov.au/document/2018d037833","AGE_ENTRY_DATE":"2025-11-18","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.13784","geometry":{"type":"Point","coordinates":[147.23429,-35.949663]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":13784,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU6837103","IGSN":"10273/AU6837103","SAMPLENO":6837103,"SAMPLE_ID":"ERIVLMC1309.01","AGE_MA":428.6,"AGE_MA_UNCERTAINTY":2.6,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.39,"NUMBER_OF_ANALYSES":22,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":"GA6457","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Geoscience Australia","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":7707,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU7707","STRAT_UNIT_NAME":"Granya Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"This sample of Granya Granite was collected from a moderately weathered outcrop on private property \"Wingadel\", about 5 km NE of Fowlers Swamp on Wymah Road. The hand sample is a yellowish-grey, medium-grained and foliated quartz-feldspar-biotite-white mica granite with a mean magnetic susceptibility of 5.6 x 10-5 SI, measured on moderately weathered surfaces. Chappell et al. (1991) assigned the S-type, felsic, fractionated Granya Granite to the Koetong Suite of the Koetong Supersuite. The Granya Granite was dated as part of ongoing efforts to constrain the age, affinity and distribution of predominantly S-type granitic rocks which transect the NSW-Victoria border as a NW-SE trending batholithic mass E of Lake Hume. Geological mapping in Victoria (e.g. Chappell et al., 1991; Rossiter, 2003) divided S-type granites within this mass into the unfractionated Koetong Granite to the south (away from the border) and the fractionated Granya Granite in the border area. Both are intruded along their E margins by the Early Devonian felsic I-type Thologolong Granite, the mapped N boundary of which coincides with the NSW-Victoria border. Despite the Victorian \"border frontage\" exclusively comprising Granya Granite in the W and Thologolong Granite in the E, Chappell et al. (1991) mapped the entire northward continuation of the batholith into NSW as Koetong Granite. Chappell (1999) subsequently recognised fractionated S-type granite in the SW part of the batholith within NSW and attributed those rocks to the Granya Granite; one such exposure yielded a U-Pb SHRIMP zircon age of 428.2 +/- 2.7 Ma (Bodorkos et al., 2015). However, the contact between the Granya Granite and Koetong Granite remained unmapped in NSW, and its nature is enigmatic. Campbell (2020) noted that outcrop of Granya Granite remains completely surrounded by exposures attributed to the Koetong Granite. Rossiter (2003) described the Granya Granite in Victoria as \"chemically variable\", which raises questions related to the definition and distribution of the unit in NSW. Initial U-Pb zircon analyses from a sample attributed to the Koetong Granite in Victoria yielded a date of 419 +/- 6 Ma (Anderson et al., 1996). However, the sampling location was not specified, and it is possible that the unit sampled was the lithologically similar S-type Bethanga Gneissic Granite exposed on the S shore of Lake Hume, and subsequently dated at 419.9 +/- 3.4 Ma by Keay et al. (1999). More recently, samples attributed to the Granya Granite have been dated at 435.8 +/- 4.4 Ma in Victoria (Ickert & Williams, 2011) and 428.2 +/- 2.7 Ma in NSW (see above), and Bodorkos et al. (2021) dated a sample attributed to the Koetong Granite in NSW at 428.1 +/- 2.6 Ma), indicating a probable mid-Silurian age for both units. Site ERIVLMC1309, which lies N of the previously mapped extent of the Granya Granite, was targeted for dating to: (i) determine whether there is any discernible age variation in the S-type granites that represent the NW continuation of the Granya Granite (W of the Thologolong Granite) into southern NSW, and (ii) directly compare with unfractionated S-type Koetong Granite (ERIVLMC1332.01), as well as the Corryong Granite to the E (ERIVLMC1330.01). In thin section, this foliated, medium-grained biotite-muscovite granite features K-feldspar ex-phenocrysts (now porphyroclasts) up to 1 cm long, within a completely recrystallised quartz-rich fabric and a sinuous foliation defined by secondary biotite and muscovite. The matrix comprises a 1-3 mm mosaic of quartz, plagioclase, K-feldspar, primary biotite, and minor primary muscovite. Plagioclase is twinned and uncommonly zoned, and K-feldspar is perthitic.","SAMPLING_FEATURE_NAME":"ERIVLMC1309","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS650777","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Lachlan Region","REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-35.949663,"LONG_GDA94":147.23429,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":"Wingadel property, Wymah Road, Bowna district","SAMPLE_ACQUISITION_DATE":"2020-10-13","SAMPLE_ORIGINATOR":"Geological Survey of New South Wales (GSNSW)","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75064","AGE_REF":"Jones, S.L., Bodorkos, S., Eastlake, M.A.S., Campbell, L.M., Hughes, K.S., Blevin, P.L., Fitzherbert, J.A., 2023. New SHRIMP U-Pb zircon ages from the Lachlan Orogen, NSW: Dubbo, Forbes and East Riverina areas, July 2020-June 2021. Geoscience Australia. Record, 2023/36, 90p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.26186/147971","AGE_ENTRY_DATE":"2023-08-11","AGE_LAST_UPDATED":null}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.13447","geometry":{"type":"Point","coordinates":[137.78496846,-18.97325328]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":13447,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU7533592","IGSN":"10273/AU7533592","SAMPLENO":7533592,"SAMPLE_ID":"2021330162","AGE_MA":1587.8,"AGE_MA_UNCERTAINTY":6.3,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.82,"NUMBER_OF_ANALYSES":28,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"GA6471","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Geoscience Australia","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":"EFTF36","STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous volcanic rock","LITHOLOGY":"crystal tuff","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Sample 2021330162 was collected from NDI Carrara 1 from tray 340 at the depth interval 1012.21-1012.24 m. Sample 2021330162 is a thin conformable band of greenish material with sharp upper and lower contacts with the host pale calcarenite (Crombez et al., 2022).","SAMPLING_FEATURE_NAME":"NDI Carrara 1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH648482","BOREHOLE_TOP_DEPTH_M":1012.21,"BOREHOLE_BASE_DEPTH_M":1012.24,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NT","COUNTRY":"AUS","LAT_GDA94":-18.9732532761,"LONG_GDA94":137.7849684567,"ELEV_M_AHD":262,"ACCURACY_M":3,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2021-04-01","SAMPLE_ORIGINATOR":"Grosjean, E.","SAMPLE_PHOTO":"Y","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73615","AGE_REF":"Kositcin, N., Carson, C.J., 2022. Exploring for the Future: SHRIMP U-Pb geochronology of NDI Carrara 1, South Nicholson region, Northern Territory. Geoscience Australia. Record, 2022/42, 56p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.11636/Record.2022.042","AGE_ENTRY_DATE":"2022-11-21","AGE_LAST_UPDATED":null}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.7716","geometry":{"type":"Point","coordinates":[128.96709721,-26.42130963]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":7716,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1697153","IGSN":"10273/AU1697153","SAMPLENO":1697153,"SAMPLE_ID":"183596","AGE_MA":1272,"AGE_MA_UNCERTAINTY":15,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.01,"NUMBER_OF_ANALYSES":2,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"maximum depositional age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSWA","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Wirku Metamorphics","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"high grade metamorphic rock","LITHOLOGY":"gneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"gneiss","SAMPLING_FEATURE_NAME":"183596","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS362525","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Musgrave Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-26.4213096297,"LONG_GDA94":128.9670972129,"ELEV_M_AHD":547,"ACCURACY_M":20,"LOCATION_METHOD":"unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Geological Survey of Western Australia (GSWA)","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Kirkland, CL, Bodorkos, S and Wingate, MTD 2009, 183596: laminated paragneiss, Mount Fanny; Geochronology Record 758: Geological Survey of Western Australia, 5p.","AGE_PUBLICATION_LINKS":"http://geodownloads.dmp.wa.gov.au/downloads/Geochron/pdfs/183596.1.pdf","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2020-11-16"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15426","geometry":{"type":"Point","coordinates":[135.487199,-29.616791]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15426,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1585039","IGSN":"10273/AU1585039","SAMPLENO":1585039,"SAMPLE_ID":"2003362541","AGE_MA":1590.7,"AGE_MA_UNCERTAINTY":3.3,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":1.3,"NUMBER_OF_ANALYSES":35,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"metamorphism","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"238U/206Pb and 207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"metamorphic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":"Gawler Project","STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metamorphosed acid igneous rock","LITHOLOGY":"gneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"borehole specimen","SAMPLE_DESC":"102.7-106.0m","SAMPLING_FEATURE_NAME":"Mount Woods 1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH620966","BOREHOLE_TOP_DEPTH_M":102.7,"BOREHOLE_BASE_DEPTH_M":106,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-29.616791,"LONG_GDA94":135.487199,"ELEV_M_AHD":198,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Holm, O.H.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"74362","AGE_REF":"Holm, O., 2004. New geochronology of the Mount Woods Inlier and Central Gawler Gold Province [accompanying slides]. IN: Gawler Craton 2004: State of Play, Adelaide, 4-6 August 2004. Geological Survey of South Australia. Report Book, 2004/00018, 3.","AGE_PUBLICATION_LINKS":"https://pid.sarig.sa.gov.au/document/2019d081296","AGE_ENTRY_DATE":"2025-11-18","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15468","geometry":{"type":"Point","coordinates":[135.487199,-29.616791]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15468,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1585039","IGSN":"10273/AU1585039","SAMPLENO":1585039,"SAMPLE_ID":"2003362541","AGE_MA":1587.9,"AGE_MA_UNCERTAINTY":2.3,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":1.12,"NUMBER_OF_ANALYSES":40,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"238U/206Pb and 207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":"Gawler Project","STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metamorphosed acid igneous rock","LITHOLOGY":"gneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"borehole specimen","SAMPLE_DESC":"102.7-106.0m","SAMPLING_FEATURE_NAME":"Mount Woods 1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH620966","BOREHOLE_TOP_DEPTH_M":102.7,"BOREHOLE_BASE_DEPTH_M":106,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-29.616791,"LONG_GDA94":135.487199,"ELEV_M_AHD":198,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Holm, O.H.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73967","AGE_REF":"Jagodzinski, E., 2014. The age of magmatic and hydrothermal zircon at Olympic Dam. Geological Society of Australia Abstracts, 110, 254-255.","AGE_PUBLICATION_LINKS":"https://www.researchgate.net/publication/271387404","AGE_ENTRY_DATE":"2025-11-18","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.7468","geometry":{"type":"Point","coordinates":[146.2914389,-20.07575833]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":7468,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU6660778","IGSN":"10273/AU6660778","SAMPLENO":6660778,"SAMPLE_ID":"20711","AGE_MA":482,"AGE_MA_UNCERTAINTY":8,"AGE_CONFIDENCE_LEVEL":"not captured","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"not captured","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"U/Pb not captured","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Unknown","AGE_INTERPRETED_FROM_SOURCE":"primary age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Primary age.","AGE_SOURCE":"GSQ compilation, 2016","PROJECT":null,"STRATNO":17522,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU17522","STRAT_UNIT_NAME":"Sunburst Granodiorite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Sunburst Granodiorite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granodiorite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"CHARTERS TOWERS_20711","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS648539","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Charters Towers Region","REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-20.07575833,"LONG_GDA94":146.2914389,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"22847","AGE_REF":"Hutton, L.J., Rienks, I.P., 1997. Geology of the Ravenswood Batholith. Queensland Geology, 8, 60p.","AGE_PUBLICATION_LINKS":"https://geoscience.data.qld.gov.au/data/dataset/cr088816/resource/geo-doc1236987-cr088816?view_id=3317e057-ece0-4fb6-af85-3305898e1348","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2026-02-18"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.6458","geometry":{"type":"Point","coordinates":[118.37826,-26.3948]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":6458,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU6660899","IGSN":"10273/AU6660899","SAMPLENO":6660899,"SAMPLE_ID":"178106.1","AGE_MA":2744,"AGE_MA_UNCERTAINTY":4,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"not captured","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"U/Pb not captured","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"age of igneous crystallization","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSWA","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":null,"LITHOLOGY":null,"MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"BELELE_178106.1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS648660","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Yilgarn Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-26.3948,"LONG_GDA94":118.37826,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Geological Survey of Western Australia geochronology dataset","AGE_PUBLICATION_LINKS":"http://geodownloads.dmp.wa.gov.au/downloads/Geochron/pdfs/178106.1.pdf","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2021-01-14"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15622","geometry":{"type":"Point","coordinates":[135.97966595,-34.73061349]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15622,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11083947","IGSN":"10.60494/g84d-dj59","SAMPLENO":11083947,"SAMPLE_ID":"R1124949","AGE_MA":1853,"AGE_MA_UNCERTAINTY":5,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.22,"NUMBER_OF_ANALYSES":27,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation, intrusive","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"DATA REPROCESSED: Fanning (1997) originally reported a SHRIMP age of 1653 +/- 8 Ma for this sample (SampleID 613RS/136), however, this age data has been recalculated for Fanning et al. (2007) publication, which supersedes this previous age. 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The sample comprises 10-15% grains of strained quartz and lesser sericitized plagioclase about 0.5 mm in diameter in a matrix of anhedral granular quartz, plagioclase, pale orange-brown biotite, muscovite and opaque minerals £0.05 mm. Scattered grains of anhedral to subhedral zircon are evident. A weak schistosity defined by  seams of muscovite and biotite, some of which are crenulated.","SAMPLING_FEATURE_NAME":"CUT000040","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS558975","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":null,"COUNTRY":"PNG","LAT_GDA94":-7.3358142879,"LONG_GDA94":146.6907603274,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Sheppard, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"69049","AGE_REF":"Bodorkos, S., Sheppard, S., Saroa, D., Tsiperau, C.U., Sircombe, K.N., 2013. New SHRIMP U-Pb zircon ages from the Wau-Bulolo region, Papua New Guinea: July 2012-June 2013. Geoscience Australia. Record, 2013/25, 56p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.11636/Record.2013.025","AGE_ENTRY_DATE":"2019-10-23","AGE_LAST_UPDATED":"2020-11-02"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15026","geometry":{"type":"Point","coordinates":[143.59714925,-17.97920484]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15026,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU8246358","IGSN":"10.60494/z1g0-9751","SAMPLENO":8246358,"SAMPLE_ID":"BB5454","AGE_MA":287.5,"AGE_MA_UNCERTAINTY":1.6,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.92,"NUMBER_OF_ANALYSES":29,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":"GA6509","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Geoscience Australia","AGE_INTERPRETED_FROM_SOURCE":"Magmatic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":26245,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU26245","STRAT_UNIT_NAME":"Yataga Granodiorite","INFORMAL_UNIT_NAME":"Yataga Granodiorite/1","UNIT_NAME_SOURCE":"Yataga Granodiorite (INFORMAL_UNIT_NAME updated in 2025 using Queensland Detailed Solid Geology WMS)","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous intrusive rock","LITHOLOGY":"tonalite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"The Yataga Granodiorite forms a circular stock (ca 70 km2) ca 25–35 km north-northeast of Georgetown. The unit is made up of a main, older subunit consisting of an outer zone of hornblende–biotite tonalite, which grades into hornblende–biotite granodiorite towards the centre of the intrusion (Mackenzie & Champion, 1997; unpublished data of R. Holmes). This subunit is cut by porphyritic biotite granite and miarolitic, equigranular biotite granite of a second subunit (Withnall et al., 1976; Mackenzie & Champion, 1997).  \r\nA sample from the unit was submitted for SHRIMP zircon dating to compare the result with the previous dates and to check for inheritance. The analysed sample was collected from a large boulder on the western side of the main road to Dagworth station, near the northern margin of the intrusion. The unit at the sample site consists of medium-grained, uneven-grained to slightly porphyritic biotite–hornblende tonalite containing sparse, rounded mafic inclusions up to ca 10 cm in diameter. The tonalite appears undeformed and has a hypidiomorphic granular texture. Calcic plagioclase (ca 60%) is by far the dominant feldspar. Quartz (ca 22%), as interstitial grains, is the next most abundant mineral followed by mafic minerals (total mafics ca 12%), and K-feldspar (ca 6%). Hornblende is slightly more abundant than biotite. Some of the larger hornblende grains have relict cores of clinopyroxene. Minor and accessory minerals include opaque oxide, zircon, and apatite.","SAMPLING_FEATURE_NAME":"BB5454","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS868397","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":null,"LAT_GDA94":-17.9792048434,"LONG_GDA94":143.5971492488,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Kositcin, N.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75850","AGE_REF":"Kositcin, N., Bultitude, R.J., 2024. New SHRIMP U-Pb ages from the Georgetown and Cairns regions, Queensland: NE Queensland Solid Geology Project, 2023-2024. Geoscience Australia. Record, 2024/51, 118p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.26186/149794","AGE_ENTRY_DATE":"2024-09-24","AGE_LAST_UPDATED":"2026-02-18"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.7545","geometry":{"type":"Point","coordinates":[150.61049582,-23.30047513]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":7545,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU6660812","IGSN":"10273/AU6660812","SAMPLENO":6660812,"SAMPLE_ID":"SCYL0081","AGE_MA":276,"AGE_MA_UNCERTAINTY":3.9,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":2.1,"NUMBER_OF_ANALYSES":14,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallization","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Reported tube-like cavities, interp'd as magmatic crystallisation in a near surface environment","AGE_SOURCE":"GSQ compilation, 2016","PROJECT":null,"STRATNO":38893,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU38893","STRAT_UNIT_NAME":"Ellrott Rhyolite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Ellrott Rhyolite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid volcanic rock","LITHOLOGY":"dacite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"dark grey massive porphyritic dacite or rhyolite","SAMPLING_FEATURE_NAME":"SCYL0081","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS648573","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Proserpine Region","REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-23.3004751347,"LONG_GDA94":150.6104958245,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":"400m north of Cabbage Tree Hill, ROCKHAMPTON MGA 255617 7421202","SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"68008","AGE_REF":"Murray, C.G., Blake, P.R., Crouch, S.B.S., Hayward, M.A., Robertson, A.D.C., Simpson, G.A., 2012. Geology of the Yarrol Province central coastal Queensland. Queensland Geology, 13, 675pp.","AGE_PUBLICATION_LINKS":"https://geoscience.data.qld.gov.au/report/cr088844","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2022-06-20"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.1468","geometry":{"type":"Point","coordinates":[133.46845639,-19.9513828]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":1468,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1925328","IGSN":"10273/AU1925328","SAMPLENO":1925328,"SAMPLE_ID":"2006080003","AGE_MA":1842.3,"AGE_MA_UNCERTAINTY":4.5,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.3,"NUMBER_OF_ANALYSES":26,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"GA6013","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"Maximum depositional age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"Updated from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 20 September 2019","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Rover Field Volcaniclastic","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid volcanic rock","LITHOLOGY":"volcaniclastic rock","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"At the Rover 12 prospect, multiple layers of quartz-feldspar-chlorite rock occur within a sequence of metasedimentary quartz-chlorite schist and chert. In drill core the quartzofeldspathic rock is interlayered on the centimetre-scale with metasedimentary schist, occasionally showing irregular contacts with the schist and containing angular clasts of metasedimentary rock to ca. 9 cm in length. Both the schist and quartzofeldspathic rock contain a strong foliation that is sub-parallel to layering in the sampled drill core. In thin section the quartzofeldspathic rock shows numerous irregular 1-2 mm grains of quartz and feldspar set in a foliated chlorite-quartz matrix. The irregular grain shapes and the fine-scale interlayering with metasedimentary schist suggest that the quartzofeldspathic layers are immature, weakly metamorphosed volcaniclastic rocks. If the rock is indeed volcaniclastic in origin, the large angular metasedimentary fragments might represent rip-up clasts rather than magmatic xenoliths.","SAMPLING_FEATURE_NAME":"Rover 12","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH363916","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NT","COUNTRY":"AUS","LAT_GDA94":-19.9513827989,"LONG_GDA94":133.468456386,"ELEV_M_AHD":298,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Maidment, D.W.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"69187","AGE_REF":"Maidment, D.W., Huston, D.L., Donnellan, N., Lambeck, A., 2013. Constraints on the timing of the Tennant Event and associated Au-Cu-Bi mineralisation in the Tennant Region, Northern Territory. Precambrian Research, 237, 51-63.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.precamres.2013.07.020","AGE_ENTRY_DATE":"2013-10-30","AGE_LAST_UPDATED":"2019-09-20"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.7417","geometry":{"type":"Point","coordinates":[140.2431306,-20.34636389]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":7417,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU6660774","IGSN":"10273/AU6660774","SAMPLENO":6660774,"SAMPLE_ID":"CAP04","AGE_MA":1746,"AGE_MA_UNCERTAINTY":7,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.89,"NUMBER_OF_ANALYSES":22,"CALCULATION_TYPE":"not captured","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"96-46A","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Unknown","AGE_INTERPRETED_FROM_SOURCE":"igneous crystallisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"33 analyses from 32 grains were analysed in total, 4 >5% discordant, cores exist but aren't detectable from internal growth structures, 1746 Ma is considered the most reliable estimate of the magmatic age of this sample","AGE_SOURCE":"GSQ compilation, 2016","PROJECT":null,"STRATNO":30727,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU30727","STRAT_UNIT_NAME":"Dipvale Granodiorite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Dipvale Granodiorite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granodiorite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"CLONCURRY_CAP04","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS648535","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Mount Isa Region","REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-20.34636389,"LONG_GDA94":140.2431306,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"23458","AGE_REF":"Davis, B.K., Pollard, P.J., Lally, J.H., McNaughton, N.J., Blake, K., Williams, P.J., 2001. Deformation history of the Naraku Batholith, Mt Isa Inlier, Australia: implications for pluton ages and geometries from structural study of the Dipvale Granodiorite and Levian Granite. Australian Journal of Earth Sciences, 48(1), 113-129.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1046/j.1440-0952.2001.00848.x","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2026-02-18"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.13823","geometry":{"type":"Point","coordinates":[137.6415256,-25.85658963]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":13823,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU7436339","IGSN":"10273/AU7436339","SAMPLENO":7436339,"SAMPLE_ID":"SS21CSV006","AGE_MA":569,"AGE_MA_UNCERTAINTY":10,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":1.77,"NUMBER_OF_ANALYSES":2,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":"GA6477","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Geoscience Australia","AGE_INTERPRETED_FROM_SOURCE":"maximum depositional age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Unnamed sandstone, Thomas 1","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metasedimentary rock","LITHOLOGY":"sandstone","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"drill chips/cuttings","SAMPLE_DESC":"Thomas No. 1 was drilled in 1981 by Argonaut International Corporation under a farm-in agreement with Beach Petroleum N.L. and North Broken Hill Ltd. Thomas No. 1 was intended as an on-structure test of basal Cretaceous, Jurassic, Triassic and possibly Permian reservoirs (Wiltshire, 1982). The primary target was the Pedirka Basin early Jurassic and middle Triassic sandstone and shale sequence that had been first recognized at Poolowanna No. 1, where it contained oil shows. Lesser objectives were the basal Cretaceous Cadna-Owie Formation of the Eromanga Basin, known to contain oil and gas reservoir and source rocks in the region of the Cooper Basin, and rocks of the early Permian Pedirka Basin sequence, thought to underlie the Mesozoic units at Thomas 1 (Wiltshire, 1982). In Thomas 1, 157 m of indurated, hard, steeply-dipping, silty, dolomitic and calcareous fine sandstone, with quartz veins and quartzite intervals, was intersected below the Pedirka/Eromanga basins successions (Wiltshire, 1982). These sedimentary rocks were interpreted to represent low energy, shallow shelf environments, and were considered to be correlatives of late Neoproterozoic or early Cambrian successions of the Amadeus and Georgina basins (Edgoose and Munson, 2013). The sample comprises chips of calcareous sandstone collected over the interval 2578–2608 metres. A maximum depositional age for this sample will place a constraint on the age of pre-Pedirka Basin sediments in the Simpson Desert region.","SAMPLING_FEATURE_NAME":"Thomas 1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH16036","BOREHOLE_TOP_DEPTH_M":2578,"BOREHOLE_BASE_DEPTH_M":2608,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NT","COUNTRY":"AUS","LAT_GDA94":-25.8565896287,"LONG_GDA94":137.6415256029,"ELEV_M_AHD":30,"ACCURACY_M":100,"LOCATION_METHOD":"company supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Kositcin, N.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75069","AGE_REF":"Kositcin, N., Verdel, C., Edgoose, C., 2023. Summary of results. Joint NTGS-GA geochronology project: western Warburton Basin, March 2022-February 2023. Northern Territory Geological Survey Record, 2023-006, 16pp.","AGE_PUBLICATION_LINKS":"https://geoscience.nt.gov.au/gemis/ntgsjspui/handle/1/92651","AGE_ENTRY_DATE":"2023-08-24","AGE_LAST_UPDATED":null}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.6670","geometry":{"type":"Point","coordinates":[117.21361,-24.1634]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":6670,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU6660975","IGSN":"10273/AU6660975","SAMPLENO":6660975,"SAMPLE_ID":"206994.1","AGE_MA":1084,"AGE_MA_UNCERTAINTY":6,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"not captured","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"U/Pb not captured","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"age of igneous crystallization","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSWA","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":null,"LITHOLOGY":null,"MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"MOUNT EGERTON_206994.1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS648736","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Bangemall Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-24.1634,"LONG_GDA94":117.21361,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Geological Survey of Western Australia geochronology dataset","AGE_PUBLICATION_LINKS":"http://geodownloads.dmp.wa.gov.au/downloads/Geochron/pdfs/206994.1.pdf","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2021-01-14"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15612","geometry":{"type":"Point","coordinates":[134.77097,-31.70561]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15612,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11083953","IGSN":"10.60494/fgvk-rp81","SAMPLENO":11083953,"SAMPLE_ID":"R1124960","AGE_MA":1680,"AGE_MA_UNCERTAINTY":9,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.51,"NUMBER_OF_ANALYSES":16,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation, intrusive","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"DATA REPROCESSED: Ferris (2001) and Ferris and Schwarz (2004) originally reported an age of 1679 +/- 12 Ma. however, this age data has been recalculated for Fanning et al. 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No retrogression of this mineral assemblage is evident.","SAMPLING_FEATURE_NAME":"PB 1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH894470","BOREHOLE_TOP_DEPTH_M":351.2,"BOREHOLE_BASE_DEPTH_M":351.9,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-28.8057362,"LONG_GDA94":133.9128265,"ELEV_M_AHD":218,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2006-03-06","SAMPLE_ORIGINATOR":"Payne, J.L.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"64576","AGE_REF":"Payne, J.L., Hand, M., Barovich, K.M., Wade, B.P., 2008. Temporal constraints on the timing of high-grade metamorphism in the northern Gawler Craton: implications for assembly of the Australian Proterozoic. 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No retrogression of this mineral assemblage is evident.","SAMPLING_FEATURE_NAME":"PB 1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH894470","BOREHOLE_TOP_DEPTH_M":351.2,"BOREHOLE_BASE_DEPTH_M":351.9,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-28.8057362,"LONG_GDA94":133.9128265,"ELEV_M_AHD":218,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2006-03-06","SAMPLE_ORIGINATOR":"Payne, J.L.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"67112","AGE_REF":"Cutts, K., Hand, M., Kelsey, D.E., 2011. Evidence for early Mesoproterozoic (ca. 1590 Ma) ultrahigh-temperature metamorphism in southern Australia. 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No retrogression of this mineral assemblage is evident.","SAMPLING_FEATURE_NAME":"PB 1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH894470","BOREHOLE_TOP_DEPTH_M":351.2,"BOREHOLE_BASE_DEPTH_M":351.9,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-28.8057362,"LONG_GDA94":133.9128265,"ELEV_M_AHD":218,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2006-03-06","SAMPLE_ORIGINATOR":"Payne, J.L.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"67112","AGE_REF":"Cutts, K., Hand, M., Kelsey, D.E., 2011. Evidence for early Mesoproterozoic (ca. 1590 Ma) ultrahigh-temperature metamorphism in southern Australia. 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Geochronology Record 1028: Geological Survey of Western Australia, 5p.","AGE_PUBLICATION_LINKS":"http://geodownloads.dmp.wa.gov.au/downloads/Geochron/pdfs/194768.1.pdf","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2020-11-16"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15029","geometry":{"type":"Point","coordinates":[143.92458206,-17.00777265]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15029,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU8246355","IGSN":"10.60494/vq4n-3p89","SAMPLENO":8246355,"SAMPLE_ID":"BB6020","AGE_MA":311.7,"AGE_MA_UNCERTAINTY":1.7,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.86,"NUMBER_OF_ANALYSES":26,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":"GA6509","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Geoscience Australia","AGE_INTERPRETED_FROM_SOURCE":"Magmatic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":22693,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU22693","STRAT_UNIT_NAME":"Pratt Volcanics","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Pratt Volcanics","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous volcanic rock","LITHOLOGY":"rhyolite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Basement in drillhole Karumba KAN_0003_1 is represented by grey, very crystal-rich (ca 40% crystals), densely welded, rhyolitic ignimbrite. Prior to the current study the basement around the drillhole site was interpreted to consist of gneiss and amphibolite assigned to the Proterozoic Dargalong Metamorphics on the solid geology coverage. The drillhole is located ca 9 km southwest of the nearest mapped outcrops of felsic volcanics (Pratt Volcanics). The Pratt Volcanics had not been isotopically dated prior to this study but are generally regarded as late Carboniferous (e.g., Bultitude et al., 1995).\r\nThe rhyolite contains numerous subhedral to euhedral crystals (up to ca 1 cm; most <5 mm) of glassy quartz, K-feldspar (pink), plagioclase (white), as well as much scarcer, smaller, altered hornblende (<5%) and biotite (<5%) grains and scattered, very fine-grained lithic fragments (up to ca 3 cm across), set in a very fine-grained groundmass. Quartz crystals are the most abundant and largest.\r\nA range of lithic fragments are present including black, very fine-grained carbonaceous? clasts but rhyolite makes up the majority. Many, but not all of the rhyolite clasts appear to be flattened pumice fragments, which commonly are compacted against and partly wrap around larger quartz and feldspar crystals.\r\nFeldspar crystals are invariably turbid and extensively altered. Those of hornblende have been completely replaced by mainly chlorite, whereas biotite crystals have been extensively replaced by an unidentified secondary mineral. Minor muscovite is commonly associated with biotite and appears to be mainly secondary. Other secondary minerals include calcite, chlorite, and sericite. The originally glassy groundmass has devitrified, locally forming spherulites. The rhyolite is densely welded with original glass shards and wispy pumice fragments deformed and flattened against quartz and feldspar crystals.","SAMPLING_FEATURE_NAME":"KAN_0003_1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH868394","BOREHOLE_TOP_DEPTH_M":101.05,"BOREHOLE_BASE_DEPTH_M":104.8,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-17.0077726465,"LONG_GDA94":143.924582056,"ELEV_M_AHD":144,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Kositcin, N.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75850","AGE_REF":"Kositcin, N., Bultitude, R.J., 2024. New SHRIMP U-Pb ages from the Georgetown and Cairns regions, Queensland: NE Queensland Solid Geology Project, 2023-2024. Geoscience Australia. Record, 2024/51, 118p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.26186/149794","AGE_ENTRY_DATE":"2024-09-24","AGE_LAST_UPDATED":"2026-02-18"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.16125","geometry":{"type":"Point","coordinates":[139.9235147,-21.64650146]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":16125,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11088569","IGSN":"10.60494/8c5z-pa20","SAMPLENO":11088569,"SAMPLE_ID":"TH140","AGE_MA":1530,"AGE_MA_UNCERTAINTY":19,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":0.2,"NUMBER_OF_ANALYSES":3,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"significance unknown","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: GeoLas 193nm ArF laser ablation system","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Varian 820 series","LABORATORY_NAME":"James Cook University","AGE_INTERPRETED_FROM_SOURCE":"not explicitly interpreted","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"based on weighted mean averages of grains with < 10% discordance. [This sample] contains only few near-concordant grains with a weighted mean age of 1530 ± 19 Ma (n = 3; MSWD = 0.2) for the youngest three concordant grains of hydrothermal zircon. An additional five concordant analyses for hydrothermal grains yield ages between 1572 ± 32 Ma and 1675 ± 30 Ma, and another 45 concordant analyses from metamict grains give inherited ages ranging between 1777 ± 56 Ma and 3190 + 31 Ma","AGE_SOURCE":null,"PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Tick Hill syn-D3 pegmatite","UNIT_NAME_SOURCE":"Tick Hill syn-D3 pegmatite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous intrusive rock","LITHOLOGY":"pegmatite","MODE_OF_OCCURRENCE":"dyke","SAMPLE_TYPE":"unknown","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"TH032","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH1081765","BOREHOLE_TOP_DEPTH_M":285.5,"BOREHOLE_BASE_DEPTH_M":286.1,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-21.6465014633,"LONG_GDA94":139.9235146984,"ELEV_M_AHD":341,"ACCURACY_M":99,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Le, T.X.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"76529","AGE_REF":"Le, T.X., Dirks, P.H.G.M., Sanislav, I.V., Huizenga, J.M., Cocker, H.A., Manestar, G.N., 2021, Geochronological constraints on the geological history and gold mineralization in the Tick Hill region, Mt Isa Inlier. Precambrian Research, 366.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.precamres.2021.106422.","AGE_ENTRY_DATE":"2026-06-09","AGE_LAST_UPDATED":"2026-06-09"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15946","geometry":{"type":"Point","coordinates":[140.4926,-21.662]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15946,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11086479","IGSN":"10.60494/vgmt-ys93","SAMPLENO":11086479,"SAMPLE_ID":"MDQ0252 459.65 m","AGE_MA":1521,"AGE_MA_UNCERTAINTY":6,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"model age","GEOLOGICAL_EVENT":"mineralisation","ISOTOPIC_SYSTEM":"Re/Os","ISOTOPIC_RATIO":"187Re/187Os and 187Os/188Os","MINERAL":"Molybdenite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"acid digestion: Carius tube dissolution","ANALYTICAL_COLLECTION_SYSTEM":"N-TIMS: Thermo Scientific Triton","LABORATORY_NAME":"University of Alberta","AGE_INTERPRETED_FROM_SOURCE":"mineralisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Results for Merlin molybdenite indicate and age range for mineralisation of between ~1520 and 1535, with only the youngest samples possibly overlapping in age [with] the emplacement of the Mount Dore granite (~1517 Ma). Distinct molybdenite style consisting of veins, commonly stylolitic, and disseminations.","AGE_SOURCE":null,"PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"mineralisation","LITHOLOGY":"vein","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"molybdenite veins with incipient brecciation style. This mineralized sample has potassic hydrothermal alteration, which accompanies the molybdenite, and overprints the earlier Na-(Ca) hydrothermal alteration. These mineralized veins also display weak to moderate stylolitic features.","SAMPLING_FEATURE_NAME":"MDQ0252","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH1042034","BOREHOLE_TOP_DEPTH_M":459.65,"BOREHOLE_BASE_DEPTH_M":459.65,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-21.662,"LONG_GDA94":140.4926,"ELEV_M_AHD":367,"ACCURACY_M":500,"LOCATION_METHOD":"company supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Babo, J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73691","AGE_REF":"Babo, J.A.F., 2014, The high grade Mo-Re Merlin deposit, Cloncurry district, unpublished Ph.D. thesis, James Cook University. Unpublished Ph.D. thesis, James Cook University, 169 p.","AGE_PUBLICATION_LINKS":"Not Available","AGE_ENTRY_DATE":"2026-05-08","AGE_LAST_UPDATED":"2026-06-09"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15519","geometry":{"type":"Point","coordinates":[133.26837778,-32.2095]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15519,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11083907","IGSN":"10.60494/7573-td26","SAMPLENO":11083907,"SAMPLE_ID":"RP1-7","AGE_MA":1605,"AGE_MA_UNCERTAINTY":7,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":0.83,"NUMBER_OF_ANALYSES":28,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Titanite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP RG","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"Magmatic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":24502,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU24502","STRAT_UNIT_NAME":"St Peter Suite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metamorphosed acid igneous rock","LITHOLOGY":"orthogneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"RP1-7","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS1008613","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-32.2095,"LONG_GDA94":133.2683777778,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"published report, method unknown","LOCATION_DESC":"Rocky Point ","SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Bodorkos, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73024","AGE_REF":"Domnick, U., Cook, N.J., Ciobanu, C.L., Courtney-Davies, L., Dmitrijeva, M., Verdugo-Ihl, M.R.,, Xu, J., Keyser, W., Slattery, A., Kennedy, A.K., Bluck, R.G., 2020. Micron- to nanoscale characterisation and U-Pb geochronology of zircon from granites of the Samphire Pluton, South Australia. Precambrian Research, 350, 105924, 16p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.precamres.2020.105924","AGE_ENTRY_DATE":"2025-11-18","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.13522","geometry":{"type":"Point","coordinates":[138.84543697,-34.68141101]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":13522,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1680546","IGSN":"10273/AU1680546","SAMPLENO":1680546,"SAMPLE_ID":"R695752","AGE_MA":1717,"AGE_MA_UNCERTAINTY":7,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.6,"NUMBER_OF_ANALYSES":17,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"Z4697","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":1138,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU1138","STRAT_UNIT_NAME":"Barossa Complex","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metamorphosed acid igneous rock","LITHOLOGY":"orthogneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Sample R695752 is a strongly foliated granitic gneiss forming a massive body 3-4 km thick, with a well-defined planar gneissosity. The rock is dominated by quartz and plagioclase in equal portions. Segregations of biotite define the gneissosity which wraps rounded K-feldspar augens up to 3 cm. Plagioclase and biotite are retrogressed to sericite. This W margin of the granite gneiss intrudes the surrounding metasedimentary rocks, and it has a sheared margin fabric (in contact with basement metasediments) which parallels the gneiss along its E edge. In thin section, it displays a coarse-grained granitoid texture, strongly modified by phyllonitic deformation and alteration. Texturally the rock comprises elongated lithons of relict coarse-grained granitoid, and subparallel to anastomosing bands dominated by foliated sericite and lesser biotite. Quartz forms anhedral grains with moderate shadowy strain extinction in the granitoid lithons, and represents relict primary igneous quartz. K-feldspar is restricted to the granitoid lithons, with blocky phenocrysts ranging up to ~4 mm long. Most K-feldspar displays \"tartan\" microcline twinning, but large K-feldspar phenocrysts lack such twinning and appears to represent relict primary orthoclase. Minor albite occurs in some granitoid lithons, and forms optically continuous replacements of primary anhedral plagioclase grains. Minor biotite forms (1) rare small euhedral platy inclusions (with dark chocolate brown to straw yellow pleochroism) in some large quartz grains (interpreted as primary igneous biotite), and (2) rare aggregates of small flakes in the granitoid lithons, interpreted as metamorphic biotite replacing primary ferromagnesian minerals, and (3) most commonly small flakes, pleochroic from tan brown to pale yellow, in aggregates elongated within subparallel strongly foliated sericite-rich bands that traverse the rock. Accessory minerals include opaque oxide minerals, titanite, zircon, allanite and tourmaline.","SAMPLING_FEATURE_NAME":"R695752","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS352293","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Adelaide Region","REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-34.6814110056,"LONG_GDA94":138.8454369705,"ELEV_M_AHD":225,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":"This sample is located in the northern Houghton Inlier approximately 4 km E of Williamstown in the South Para River gorge, 100 m downstream from where the river crosses Bassnet Road, very close to the Terranechron sample site of Belousova et al. 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Australian Journal of Earth Sciences, 60(8), 769-795.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099.2013.860623","AGE_ENTRY_DATE":"2025-10-24","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.3880","geometry":{"type":"Point","coordinates":[136.92490704,-32.69396604]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":3880,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU2109661","IGSN":"10273/AU2109661","SAMPLENO":2109661,"SAMPLE_ID":"R1708858","AGE_MA":1855,"AGE_MA_UNCERTAINTY":5,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.3,"NUMBER_OF_ANALYSES":43,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"GA6144","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Geoscience Australia","AGE_INTERPRETED_FROM_SOURCE":"Maximum depositional age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"Inserted from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 23 October 2019","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metasedimentary siliciclastic rock","LITHOLOGY":"gneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Within the diorite between 87.5 and 91.60 m is an interval of fine grained grey and pink laminated metasedimentary rock, which may be either a large enclave or the host rock to the diorite. The contacts between the diorite and metasedimentary rock are sharp, and the upper 50 cm of the latter is affected by hematite alteration, which is also found in the diorite and may be associated with younger felsic intrusives. The metasedimentary rock is composed of lenticular layers between less than 1 mm to 7 mm wide defined by alternating quartz and plagioclase-rich layers. Plagioclase is weakly hematite-stained, sericitised or albitised. Minor foliated biotite is altered to chlorite and leucoxene, and apatite and zircon occur as rare accessory phases. The sedimentary precursor may have been a layered quartzofeldspathic sandstone.","SAMPLING_FEATURE_NAME":"LED001","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH620949","BOREHOLE_TOP_DEPTH_M":90,"BOREHOLE_BASE_DEPTH_M":91.4,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-32.693966038,"LONG_GDA94":136.9249070439,"ELEV_M_AHD":204,"ACCURACY_M":10,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Jagodzinski, E.A.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"68159","AGE_REF":"McAvaney, S., Jagodzinski, E.A., 2012. Geochronology and geochemistry of a Kimban diorite, drill hole LED001, Lake Gilles, eastern Gawler Craton. Geological Survey of South Australia. Report Book, 2012/00010, 83p.","AGE_PUBLICATION_LINKS":"https://pid.sarig.sa.gov.au/document/d20010575","AGE_ENTRY_DATE":"2019-10-23","AGE_LAST_UPDATED":"2020-11-02"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.6689","geometry":{"type":"Point","coordinates":[120.26822,-31.5881]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":6689,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU6660986","IGSN":"10273/AU6660986","SAMPLENO":6660986,"SAMPLE_ID":"207527.1","AGE_MA":2643,"AGE_MA_UNCERTAINTY":7,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"not captured","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"U/Pb not captured","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"age of igneous 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Geology of the Yarrol Province central coastal Queensland. Queensland Geology, 13, 675pp.","AGE_PUBLICATION_LINKS":"https://geoscience.data.qld.gov.au/report/cr088844","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2022-06-20"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.7795","geometry":{"type":"Point","coordinates":[119.14008,-21.1111]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":7795,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU6661326","IGSN":"10273/AU6661326","SAMPLENO":6661326,"SAMPLE_ID":"178043.1","AGE_MA":3502,"AGE_MA_UNCERTAINTY":3,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.38,"NUMBER_OF_ANALYSES":33,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"maximum depositional age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSWA","PROJECT":null,"STRATNO":74062,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU74062","STRAT_UNIT_NAME":"Strelley Pool Formation","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Strelley Pool Chert","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"medium-coarse grained siliciclastic rock","LITHOLOGY":"sandstone","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"MARBLE BAR_178043.1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS649087","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Pilbara Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-21.1111,"LONG_GDA94":119.14008,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Nelson, DR 2005, 178043: lithic-quartz sandstone, Strelley Pool; Geochronology Record 565: Geological Survey of Western Australia, 5p.","AGE_PUBLICATION_LINKS":"http://geodownloads.dmp.wa.gov.au/downloads/Geochron/pdfs/178043.1.pdf","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2020-11-16"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15957","geometry":{"type":"Point","coordinates":[140.7829,-20.4424]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15957,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11086487","IGSN":"10.60494/xzvp-4h83","SAMPLENO":11086487,"SAMPLE_ID":"DDH EMMD033 79.5m","AGE_MA":1456,"AGE_MA_UNCERTAINTY":44,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.9,"NUMBER_OF_ANALYSES":10,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"mineralisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Monazite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: GeoLas 193nm ArF laser ablation system","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Varian 820 series","LABORATORY_NAME":"James Cook University","AGE_INTERPRETED_FROM_SOURCE":"age of E1 Group Stage 3 monazite","OTHER_AGE_INTERPRETED_FROM_SOURCE":"possible that the age may represent a mixture of both the late Cu-Au mineralising event around 1500 Ma [and] a [hydrothermal] resetting event much later (>100 Myr) than main Cu-Au mineralisation","AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"rock","LITHOLOGY":"unknown","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"The sample is composed of an assemblage of coarse, euhedral magnetite intergrown with apatite and minor quartz, which is overprinted by an assemblage of pyrite, chalcopyrite, carbonate, chlorite and monazite. The protolith is obscured by these hydrothermal assemblages, but is adjacent to less altered, sheared, massive to amygdaloidal metavolcanic rocks.","SAMPLING_FEATURE_NAME":"DDH EMMD033","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH1042041","BOREHOLE_TOP_DEPTH_M":79.5,"BOREHOLE_BASE_DEPTH_M":79.5,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-20.4424,"LONG_GDA94":140.7829,"ELEV_M_AHD":151,"ACCURACY_M":999,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Case, G.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73752","AGE_REF":"Case, G.N.D., 2016, Genesis of the E1 group of iron oxide-copper-gold deposits, Cloncurry district, North West Queensland. 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The assemblage dips gently to the east and is cut by a steeply dipping–subvertical, northerly trending foliation. 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This sample is considered to have formed as an arenaceous sediment composed mostly of quartz, accompanied by minor K-feldspar and trace clays and clastic zircon. 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Australian Journal of Earth Sciences, 63(6), 701-730.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099.2016.1233456","AGE_ENTRY_DATE":"2021-01-15","AGE_LAST_UPDATED":"2024-12-19"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.7193","geometry":{"type":"Point","coordinates":[127.20801,-26.1073]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":7193,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU6661006","IGSN":"10273/AU6661006","SAMPLENO":6661006,"SAMPLE_ID":"195031.1","AGE_MA":1076,"AGE_MA_UNCERTAINTY":8,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.5,"NUMBER_OF_ANALYSES":15,"CALCULATION_TYPE":"anchored discordia","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"238U/206Pb and 207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"age of igneous crystallization","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSWA","PROJECT":null,"STRATNO":9315,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU9315","STRAT_UNIT_NAME":"Kathleen Ignimbrite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Kathleen Ignimbrite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid volcanic rock","LITHOLOGY":"rhyolite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"TALBOT_195031.1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS648767","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Musgrave Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-26.1073,"LONG_GDA94":127.20801,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Medlin, CC, Kirkland, CL, Wingate, MTD and Smithies, RH 2014, 195031: porphyritic rhyolite, Mount Glyde; 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Geochronology Record 38: Geological Survey of Western Australia, 4p.","AGE_PUBLICATION_LINKS":"http://geodownloads.dmp.wa.gov.au/downloads/Geochron/pdfs/169040.1.pdf","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2020-11-16"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.7046","geometry":{"type":"Point","coordinates":[120.54899,-21.729]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":7046,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU6661048","IGSN":"10273/AU6661048","SAMPLENO":6661048,"SAMPLE_ID":"178005.1","AGE_MA":2755,"AGE_MA_UNCERTAINTY":7,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.06,"NUMBER_OF_ANALYSES":16,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"age of igneous crystallization","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSWA","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"porphyritic hornblende-quartz micromonzodiorite, Eastern Creek Well","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate intrusive rock","LITHOLOGY":"monzodiorite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"NULLAGINE_178005.1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS648809","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Pilbara Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-21.729,"LONG_GDA94":120.54899,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Nelson, DR 2004, 178005: porphyritic hornblende-quartz micromonzodiorite, Eastern Creek Well; 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In thin section, this sample displays an inequigranular granoblastic metamorphic texture, with indistinct foliation defined by widely spaced white mica aggregates and trails. Quartz dominates the rock, forming small to large anhedral grains ~0.1-1.0 mm in size. Larger grains display equant anhedral shapes that are reminiscent of primary clastic particles. Smaller grains form microgranular mosaics around the grain margins, and appear to represent recrystallisation mosaics. White mica occurs in two textural types: i) Some forms well-shaped larger plates ~0.4-1.0 mm long scattered throughout the rock. A weak preferred orientation defines a structure of unknown origin, either a metamorphic foliation or possibly a primary layering. ii) Small flakes of white mica are present throughout the rock. Some occur as small dense replacements of anhedral plagioclase grains. Some small anhedral relict plagioclase grains are preserved in these sites. These plagioclase grains have suffered partial to complete replacement by fine-grained white mica. Much of the fine-grained white mica also occurs as diffuse concentrations in ragged to elongated wispy patches up to several millimetres in size whose preferred orientation defines another structure, discordant to the weak alignment of the larger muscovite plates. This structure appears to be of retrogressive metamorphic origin. Biotite occurs in trace amount as small pleochroic brown to very pale yellow flakes that tend to be concentrated in local small aggregates. Opaques occur in minor amount as small blocky grains ~0.1-0.2 mm in size that are disseminated sparsely throughout the rock. Zircon occurs in significant amount for an accessory phase.","SAMPLING_FEATURE_NAME":"R697454","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS352291","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Adelaide Region","REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-32.1104333271,"LONG_GDA94":140.3031807711,"ELEV_M_AHD":-11,"ACCURACY_M":50,"LOCATION_METHOD":"unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Marjoribanks, R.W.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75054","AGE_REF":"Jagodzinski, E.A., Kositcin, N., Michael, U., Bodorkos, S., 2023, 2023 data release of U-Pb dates for the Curnamona Province in South Australia: advances in the stratigraphy of the Olary Domain. Australian Earth Sciences Convention, Perth, June 2023. Geological Society of Australia Abstracts, Poster.","AGE_PUBLICATION_LINKS":"https://doi.org/10.13140/RG.2.2.12189.90088","AGE_ENTRY_DATE":"2023-06-25","AGE_LAST_UPDATED":null}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.3686","geometry":{"type":"Point","coordinates":[100.958,-66.101]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":3686,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1456389","IGSN":"10273/AU1456389","SAMPLENO":1456389,"SAMPLE_ID":"86285628","AGE_MA":1521,"AGE_MA_UNCERTAINTY":29,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":3.5,"NUMBER_OF_ANALYSES":25,"CALCULATION_TYPE":"upper concordia intercept","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"238U/206Pb and 207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"U8026","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Unknown","AGE_INTERPRETED_FROM_SOURCE":"Age of magmatic crystallization of (meta-)igneous rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"Inserted from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 23 October 2019","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metamorphosed acid igneous rock","LITHOLOGY":"gneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"OPX-kfs-PL-QZ gneiss","SAMPLING_FEATURE_NAME":"86285628","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS187308","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"AAT","COUNTRY":"ATA","LAT_GDA94":-66.101,"LONG_GDA94":100.958,"ELEV_M_AHD":null,"ACCURACY_M":999,"LOCATION_METHOD":"method unknown","LOCATION_DESC":"Bunger Hills. Thomas Island N","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Sheraton, J.W.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":null,"AGE_PUBLICATION_LINKS":null,"AGE_ENTRY_DATE":"2019-10-23","AGE_LAST_UPDATED":"2020-11-02"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.7395","geometry":{"type":"Point","coordinates":[140.04470424,-20.70622845]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":7395,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1464266","IGSN":"10273/AU1464266","SAMPLENO":1464266,"SAMPLE_ID":"72205017A","AGE_MA":1726,"AGE_MA_UNCERTAINTY":8,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":0.94,"NUMBER_OF_ANALYSES":7,"CALCULATION_TYPE":"upper concordia intercept","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/235U and 206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"isotope dilution: two-stage column separation","ANALYTICAL_COLLECTION_SYSTEM":"TIMS: unknown model","LABORATORY_NAME":"Unknown","AGE_INTERPRETED_FROM_SOURCE":"igneous crystallisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"This is a good determination of the emplacement age of the Burstall Granite. Equiv to sa  72-241A of Page, 1983. Econ Geo, 78, 838-853.","AGE_SOURCE":"GSQ Compilation","PROJECT":null,"STRATNO":25823,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU25823","STRAT_UNIT_NAME":"Burstall Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Burstall Granite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"coarse granite","SAMPLING_FEATURE_NAME":"72205017A","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS115984","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Mount Isa Region","REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-20.7062284465,"LONG_GDA94":140.0447042406,"ELEV_M_AHD":345,"ACCURACY_M":100,"LOCATION_METHOD":"1:100 000 map","LOCATION_DESC":"Kalkadoon-Leichhardt Belt. Burstall Valley","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Page, R.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"39049","AGE_REF":"Page, R.W., 1983. Chronology of magmatism, skarn formation, and uranium mineralization, Mary Kathleen, Queensland, Australia. Economic Geology, 78(5), 838-853.","AGE_PUBLICATION_LINKS":"https://doi.org/10.2113/gsecongeo.78.5.838","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2026-02-18"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15028","geometry":{"type":"Point","coordinates":[142.8870668,-17.76177592]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15028,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU8246356","IGSN":"10.60494/fn9x-h756","SAMPLENO":8246356,"SAMPLE_ID":"BB6010","AGE_MA":289.6,"AGE_MA_UNCERTAINTY":1.5,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.37,"NUMBER_OF_ANALYSES":27,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":"GA6509","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Geoscience Australia","AGE_INTERPRETED_FROM_SOURCE":"Magmatic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":78416,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU78416","STRAT_UNIT_NAME":"Kennedy Province - Permian intrusives 78416","INFORMAL_UNIT_NAME":"Pgr/1-Kennedy Province","UNIT_NAME_SOURCE":"solid geology unit Pgr/1 (INFORMAL_UNIT_NAME updated in 2025 using Queensland Detailed Solid Geology WMS)","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous intrusive rock","LITHOLOGY":"granodiorite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Crystalline basement was intersected at 152.3 m in drillhole Karumba KASO_0043_1 located ca 91 km north-northwest of Georgetown. The basement consists of pale grey, medium-grained, uneven grained to porphyritic hornblende–biotite granodiorite, defining an ovoid area (ca 72 km2), fault-bounded to the east, of relatively low magnetic anomalies with some highly magnetic arcuate rim features on aeromagnetic images. Until the current study the granodiorite was depicted as part of an undivided suite of early Permian granitoids (Kennedy Igneous Association) on GSQ’s solid geology coverage but is now delineated as solid geology unit Pgr/1.\r\nThe granodiorite is a speckled brown and white colour in the upper 3 m or so intersected in the drillhole due to extensive alteration and hematite? (with a red streak) after pyrite? is common. It becomes fresher towards the bottom of the hole but is extensively altered throughout.\r\nWhite plagioclase phenocrysts, up to ca 1 cm long, are common in the granodiorite. Minor faint pink K-feldspar is present in the groundmass. Biotite (ca 8–10%) is the dominant mafic mineral and appears mainly unaltered in hand specimen. Sparse mafic enclaves, up to ca 3 cm across, are also present. The granodiorite is undeformed but is cut by numerous chlorite +/- pyrite-lined joints.\r\nPlagioclase is the dominant feldspar in the thin sections examined. The grains are invariably turbid, commonly almost opaque, and extensively replaced by a range of secondary minerals including sericite and calcite. K-feldspar grains appear unaltered. Biotite grains in some parts of the granodiorite are extensively–completely replaced by chlorite, whereas in other parts they are unaltered. The granodiorite also contains scattered subhedral–euhedral grains of hornblende (<5%) that have been completely replaced by mainly calcite and biotite. Accessory and secondary minerals consist mainly of zircon, sericite, chlorite, and calcite.\r\nQuartz grains commonly show undulose extinction but otherwise the granodiorite appears undeformed.","SAMPLING_FEATURE_NAME":"KASO_0043_1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH868395","BOREHOLE_TOP_DEPTH_M":163.1,"BOREHOLE_BASE_DEPTH_M":164,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-17.7617759236,"LONG_GDA94":142.8870668017,"ELEV_M_AHD":96,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Kositcin, N.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75850","AGE_REF":"Kositcin, N., Bultitude, R.J., 2024. New SHRIMP U-Pb ages from the Georgetown and Cairns regions, Queensland: NE Queensland Solid Geology Project, 2023-2024. Geoscience Australia. Record, 2024/51, 118p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.26186/149794","AGE_ENTRY_DATE":"2024-09-24","AGE_LAST_UPDATED":"2026-02-18"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.7349","geometry":{"type":"Point","coordinates":[120.55881,-33.9229]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":7349,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU6661155","IGSN":"10273/AU6661155","SAMPLENO":6661155,"SAMPLE_ID":"184128.1","AGE_MA":1195,"AGE_MA_UNCERTAINTY":17,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.4,"NUMBER_OF_ANALYSES":8,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"metamorphism","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"age of metamorphism","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"The date of 1195 +/- 17 Ma is interpreted as the best estimate of the age of zircon recrystallization and rim growth during high-grade metamorphism, which probably took place during Stage II of the Albany-Fraser Orogeny (1215-1140 Ma; Clark et al., 2000).","AGE_SOURCE":"GSWA","PROJECT":null,"STRATNO":30538,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU30538","STRAT_UNIT_NAME":"Munglinup Gneiss","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Munglinup Gneiss","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"tonalite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"RAVENSTHORPE_184128.1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS648916","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-33.9229,"LONG_GDA94":120.55881,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Bodorkos, S and Wingate, MTD, 2008, 184128: leucocratic tonalitic gneiss, Powell Point; Geochronology dataset 705, in Compilation of geochronology data: Geological Survey of Western Australia.","AGE_PUBLICATION_LINKS":"http://geodownloads.dmp.wa.gov.au/downloads/Geochron/pdfs/184128.1.pdf","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2020-11-16"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.13561","geometry":{"type":"Point","coordinates":[111.649239,-19.942201]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":13561,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU2121671","IGSN":"10273/AU2121671","SAMPLENO":2121671,"SAMPLE_ID":"Alaric-1_DZ-1","AGE_MA":140.1,"AGE_MA_UNCERTAINTY":2,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.96,"NUMBER_OF_ANALYSES":11,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":"GA6155","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Geoscience Australia","AGE_INTERPRETED_FROM_SOURCE":"Magmatic crystallisation of acicular zircon component.","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"[Result as reported by Magee et al. (2023; https:doi.org/10.5194/gchron-5-1-2023), who included (via quadratic addition) the uncertainty of 0.27% (2sigma) associated with the reference 206Pb/238U value for TEMORA2 determined via IDTIMS (which is dominated by the uncertainty in U/Pb of the tracer solution; see Black et al. 2004). Including this additional component of uncertainty facilitated direct comparison with CA-TIMS analyses from the same zircon population (Magee et al. 2023).]","AGE_SOURCE":null,"PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"carbonate sedimentary rock","LITHOLOGY":"calcilutite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"drill chips/cuttings","SAMPLE_DESC":"Contains a population of acicular zircons, presumably derived from a tuff horizon within the succession.","SAMPLING_FEATURE_NAME":"Alaric 1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH529435","BOREHOLE_TOP_DEPTH_M":2890,"BOREHOLE_BASE_DEPTH_M":2940,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-19.942201,"LONG_GDA94":111.649239,"ELEV_M_AHD":-1961,"ACCURACY_M":999,"LOCATION_METHOD":"company supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2010-11-23","SAMPLE_ORIGINATOR":"Woodside Energy Ltd","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"69040; 74357","AGE_REF":"Lewis, C.J., Sircombe, K.N., 2013, Use of U-Pb geochronology to delineate provenance of North West Shelf sediments, Australia. In: Keep, M. & Moss, S.J. (eds), The Sedimentary Basins of Western Australia IV. Proceedings of the Petroleum Exploration Society of Australia Symposium, Perth, WA, 27p.; Magee, C.W., Bodorkos, S., Lewis, C.J., Crowley, J.L., Wall, C.J., Friedman, R.M., 2023. Examination of the accuracy of SHRIMP U-Pb geochronology based on samples dated by both SHRIMP and CA-TIMS. Geochronology, 5(1), 1-19.","AGE_PUBLICATION_LINKS":"https://pesa.com.au/wabs-2019-cover-and-preface-pdf/; https://doi.org/10.5194/gchron-5-1-2023","AGE_ENTRY_DATE":"2023-01-12","AGE_LAST_UPDATED":null}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15582","geometry":{"type":"Point","coordinates":[137.6155994,-34.0788374]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15582,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11083993","IGSN":"10.60494/nn3b-qv11","SAMPLENO":11083993,"SAMPLE_ID":"R20378","AGE_MA":1753,"AGE_MA_UNCERTAINTY":8,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.14,"NUMBER_OF_ANALYSES":21,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation, extrusive","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/Original publication","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Moonta Porphyry Member, Weetulta Formation:","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":null,"LITHOLOGY":null,"MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"borehole specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"EAST MOONTA DD 2","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH913078","BOREHOLE_TOP_DEPTH_M":9.45,"BOREHOLE_BASE_DEPTH_M":106.68,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-34.0788374,"LONG_GDA94":137.6155994,"ELEV_M_AHD":43,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Primary Industries and Resources South Australia (PIRSA)","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"65376","AGE_REF":"Fanning, C.M., Reid, A.J., Teale, G.S., 2007. A geochronological framework for the Gawler Craton, South Australia. Geological Survey of South Australia Bulletin, 55, 258p.","AGE_PUBLICATION_LINKS":"https://pid.sarig.sa.gov.au/document/2018d037833","AGE_ENTRY_DATE":"2025-11-18","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.7856","geometry":{"type":"Point","coordinates":[120.20015,-21.7754]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":7856,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU6661318","IGSN":"10273/AU6661318","SAMPLENO":6661318,"SAMPLE_ID":"169194.1","AGE_MA":3003,"AGE_MA_UNCERTAINTY":9,"AGE_CONFIDENCE_LEVEL":"1 standard deviation","AGE_MSWD":null,"NUMBER_OF_ANALYSES":1,"CALCULATION_TYPE":"single analysis","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"maximum depositional age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSWA","PROJECT":null,"STRATNO":12410,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU12410","STRAT_UNIT_NAME":"Mosquito Creek Formation","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Mosquito Creek Formation","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metamorphic rock","LITHOLOGY":"metasedimentary siliciclastic rock","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"NULLAGINE_169194.1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS649079","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Pilbara Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-21.7754,"LONG_GDA94":120.20015,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Nelson, DR 2004, 169194: coarse lithic-quartz sandstone, Blue Spec mine; Geochronology Record 47: Geological Survey of Western Australia, 5p.","AGE_PUBLICATION_LINKS":"http://geodownloads.dmp.wa.gov.au/downloads/Geochron/pdfs/169194.1.pdf","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2020-11-16"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15089","geometry":{"type":"Point","coordinates":[149.32945356,-22.72506308]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15089,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU7994525","IGSN":"10.60494/ezp2-cy22","SAMPLENO":7994525,"SAMPLE_ID":"DPPA095","AGE_MA":78.91,"AGE_MA_UNCERTAINTY":0.47,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.17,"NUMBER_OF_ANALYSES":21,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":"GA6498","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Geoscience Australia","AGE_INTERPRETED_FROM_SOURCE":"Magmatic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Ti-St Lawrence-YARROL/SCAG","UNIT_NAME_SOURCE":"Unnamed unit Ti at Mount Bora (INFORMAL_UNIT_NAME updated in 2025 using Queensland Detailed Surface Geology WMS)","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate intrusive rock","LITHOLOGY":"syenite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Felsic igneous rocks that crop out as small bodies defining topographic highs in the Yatton area ca 75 km northwest of Marlborough in central Queensland have received little attention in regional-scale geological mapping projects. The most recent work, as part of the extensive South Connors-Auburn-Gogango project (Withnall et al., 2009), shows these bodies as unnamed Tertiary volcanic rocks (unit Tv) or intrusions (unit Ti); however, it is not clear whether they are indeed Tertiary, or perhaps older. Withnall et al. (2009) suggested that some units mapped as Tertiary may be as old as Permian, and some bodies farther north (e.g. at Meiklejohn Hill, Cardowan Station) which have been mapped as Permian may be Tertiary (Withnall et al., 2009). Sample 7994525/DPPA095 is the second of two samples collected from the felsic igneous bodies in the Yatton area ca 75 km northwest of Marlborough in central Queensland. The body forming Mount Bora on Stockyard Creek Station, sampled here as site DPPA095 was described as a microsyenite and mapped as an intrusive phase (unnamed unit Ti; Withnall et al., 2009). Samples of the syenite are peralkaline or near-peralkaline and relatively enriched in some HFSE (e.g. Zr = 1460 ppm). A similar dyke-like body ca 3.5 km southeast of Mount Bora is similar in mineralogy, texture and geochemistry (Purdy and Bultitude, 2022). The syenite sampled for geochronology is from the northern slopes of Mount Bora. It is fine-grained, moderately porphyritic and contains sanidine phenocrysts and glomerocrysts in a groundmass of flow-aligned feldspar laths, arfvedsonite and small and less abundant aegirine. Titanite occurs as a secondary phase and zircon was observed as inclusions in some phenocrysts.","SAMPLING_FEATURE_NAME":"DPPA095","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS866722","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-22.7250630773,"LONG_GDA94":149.3294535591,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":"Mount Bora, Stockyard Creek Station","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Geological Survey of Queensland (GSQ)","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75851","AGE_REF":"Kositcin, N., Purdy, D.J., Beattie, E., Spence, J., von Gnielinski, F.E., Simpson, B.P., Platt, S., 2024. Summary of results. Joint GSQ-GA Geochronology Project: Peralkaline Magmatic Systems and Northeast Queensland Deposits projects, 2023-2024. Geoscience Australia. Record, 2024/53, 93p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.26186/149782","AGE_ENTRY_DATE":"2024-10-30","AGE_LAST_UPDATED":"2026-02-18"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.16014","geometry":{"type":"Point","coordinates":[139.47896,-20.75463]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":16014,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11086497","IGSN":"10.60494/tbbt-m726","SAMPLENO":11086497,"SAMPLE_ID":"1758-1","AGE_MA":1376,"AGE_MA_UNCERTAINTY":32,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.3,"NUMBER_OF_ANALYSES":27,"CALCULATION_TYPE":"lower concordia intercept","GEOLOGICAL_EVENT":"deformation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"238U/206Pb and 207Pb/206Pb","MINERAL":"Monazite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: RESOlution 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7900","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"major fluid flow event coeval with uplift along the Mount Isa fault","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":5911,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU5911","STRAT_UNIT_NAME":"Eastern Creek Volcanics","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Eastern Creek Volcanics","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"unknown","LITHOLOGY":"unknown","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"This sample was selected from a fracture plane located within a highly silicified portion of the Eastern Creek Volcanics basement that underlies the deposits. The groundmass of this sample is composed predominantly of quartz with minor subrounded zircons. Medium-grained pyrite is present in this sample and occurs primarily as isolated, highly deformed individual crystals. 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The granite is well exposed as rugged tors and spheroidal boulders forming a small bean-shaped pluton ~1 km long from north to south and ~600 m wide. It consists predominantly of pink, medium to fine-grained biotite granite as described and minor aplite and intrudes the Starcross Formation of the Paleoproterozoic Kuridala Group. In thin section, the sample consists of ~25% interlocking quartz mostly 1–1.5 mm, ~25–30% perthitic K-feldspar 1–2 mm, rarely showing cross-hatch twinning, ~30–35% plagioclase as subhedral laths, usually 1–2 mm but up to 4 mm, and ~15% ragged flakes of reddish brown biotite 1–2 mm. Opaque oxides, rare green hornblende to 0.5 mm and accessory titanite to 1 mm and zircon are also present. The rock is undeformed — quartz is relatively unstrained strained and there are no zones of granulation. The Mount Cobalt Granite is probably closely related to the petrographically similar Mount Dore and Yellow Waterhole granites to the north and south respectively and the Squirrel Hills Granite, which forms a large batholith to the east. All intrude the Kuridala Group and are part of the Williams Supersuite. The Squirrel Hills Granite (1514 ± 5 Ma and 1511 ± 9 Ma), Mount Dore Granite (1516 ± 10 Ma) and the Yellow Waterhole Granite (1510 ± 8 Ma) were dated by Pollard and McNaughton (1997).","SAMPLING_FEATURE_NAME":"SSMI-042","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS625709","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Mount Isa Region","REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-21.6967592043,"LONG_GDA94":140.5293296576,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Lewis, C.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75056","AGE_REF":"Kositcin, N., Lewis, C.J., Withnall, I.W., Slade, A.P., Sargent, S., Hutton, L.J., 2023. Summary of results. Joint GSQ-GA Geochronology Project: Mount Isa region, 2017-2018. Geoscience Australia. 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Geochronological synthesis of southern Australia - Part 1 The Curnamona Province, and Part 2 The Gawler Craton. South Australia. Department of Mines and Energy. Open File Envelope, 8918, 76.; Fanning, C.M., Reid, A.J., Teale, G.S., 2007. A geochronological framework for the Gawler Craton, South Australia. 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The fresh granite has relatively infrequent, mostly up to 4 cm long (seldom dm-sized) feldspar megacrysts, but is otherwise medium-grained and equigranular. It contains variable amounts of cordierite and garnet, both often showing thin (<2 mm) biotite-reaction rims. Magmatic flow banding is defined by feldspar and biotite, commonly bent around xenoliths. At the sample location, there is no evidence of syn- or post-emplacement deformation at outcrop-scale; however, a grain shape foliation is locally preserved. Locally, infrequent weak schlieren of more felsic and more mafic compositions represent heterogeneities potentially caused by incomplete melting of the ubiquitous xenoliths, but in general the unit is relatively homogeneous. Six xenolith types have been identified: fine-grained metasandstone, fine-grained mafic amphibolite, biotite-(garnet?)-quartz-feldspar schist, biotite (para?) gneiss, equigranular medium-grained diorite and porphyroblastic cordierite(?) rock.","SAMPLING_FEATURE_NAME":"GV14SKR008","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS578756","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NT","COUNTRY":"AUS","LAT_GDA94":-12.5137843442,"LONG_GDA94":136.7920992064,"ELEV_M_AHD":6,"ACCURACY_M":999,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Kositcin, N.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"70719","AGE_REF":"Kositcin, N., Kraus, S., Whelan, J.A., 2016. Summary of results. Joint NTGS-GA SHRIMP geochronology project: Arnhem Province, July 2014-June 2015. Northern Territory Geological Survey Record, 2015-010, 25p.","AGE_PUBLICATION_LINKS":"https://geoscience.nt.gov.au/gemis/ntgsjspui/handle/1/83003","AGE_ENTRY_DATE":"2015-10-19","AGE_LAST_UPDATED":"2019-09-20"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.6576","geometry":{"type":"Point","coordinates":[116.37321,-24.7818]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":6576,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU6660920","IGSN":"10273/AU6660920","SAMPLENO":6660920,"SAMPLE_ID":"185952.1","AGE_MA":1799,"AGE_MA_UNCERTAINTY":5,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"not captured","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"U/Pb not captured","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"age of igneous crystallization","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSWA","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":null,"LITHOLOGY":null,"MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"MOUNT PHILLIPS_185952.1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS648681","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Gascoyne Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-24.7818,"LONG_GDA94":116.37321,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Geological Survey of Western Australia geochronology dataset","AGE_PUBLICATION_LINKS":"http://geodownloads.dmp.wa.gov.au/downloads/Geochron/pdfs/185952.1.pdf","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2021-01-14"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.9474","geometry":{"type":"Point","coordinates":[144.70688398,-36.69509885]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":9474,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU7371219","IGSN":"10273/AU7371219","SAMPLENO":7371219,"SAMPLE_ID":"T1","AGE_MA":382,"AGE_MA_UNCERTAINTY":3,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"plateau","GEOLOGICAL_EVENT":"mineralisation","ISOTOPIC_SYSTEM":"Ar/Ar","ISOTOPIC_RATIO":"40Ar/39Ar","MINERAL":"Sericite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"unknown: unknown","ANALYTICAL_COLLECTION_SYSTEM":"NG-MS: VG3600","LABORATORY_NAME":"La Trobe University","AGE_INTERPRETED_FROM_SOURCE":"alteration and mineralization","OTHER_AGE_INTERPRETED_FROM_SOURCE":"deformation and recrystallization","AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Tooleen","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metasomatic rock","LITHOLOGY":"vein","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"BENDIGO_T1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS652204","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Lachlan Region","REGION_NAME_SOURCE":"Bendigo","STATE":"VIC","COUNTRY":"AUS","LAT_GDA94":-36.6950988511,"LONG_GDA94":144.7068839765,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Lane, J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"60412","AGE_REF":"Foster, D.A., Gray, D.R., Kwak, T.A.P., Bucher, M., 1998. Chronology and tectonic framework of turbidite-hosted gold deposits in the Western Lachlan Fold Belt, Victoria: 40Ar/39Ar results. 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The gneiss has been assigned to the same solid geology unit (unit PLb, GSQ’s digital solid geology coverage) as the gneiss intersected in drillhole Karumba KARU_0013_1 located ca 8 km farther west. The gneiss has an average groundmass grainsize of ca 0.5 mm and consists mainly of quartz and biotite together with minor garnet as small but conspicuous porphyroblasts. Other minor and accessory minerals include sillimanite, sodic plagioclase (as scattered untwinned, mainly anhedral grains up to ca 2 mm across), muscovite (generally associated with biotite), titanite, and zircon. Sparse myrmekitic intergrowths between quartz and feldspar are also present. Biotite grains commonly show undulose extinction and curved cleavage planes.\r\nRelatively coarse, black, irregular grains tentatively identified as secondary hematite (with red streak) after pyrite? is the main secondary mineral. Other secondary minerals include chlorite (after biotite and garnet), sericite/fine muscovite (mainly after sillimanite and relatively coarse muscovite), and calcite (after plagioclase). \r\nThe gneiss is extensively deformed, and the foliation is commonly crenulated.","SAMPLING_FEATURE_NAME":"KAN_0004_1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH887354","BOREHOLE_TOP_DEPTH_M":105.7,"BOREHOLE_BASE_DEPTH_M":107,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-17.0062472944,"LONG_GDA94":143.8603931085,"ELEV_M_AHD":156,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Kositcin, N.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75850","AGE_REF":"Kositcin, N., Bultitude, R.J., 2024. New SHRIMP U-Pb ages from the Georgetown and Cairns regions, Queensland: NE Queensland Solid Geology Project, 2023-2024. Geoscience Australia. Record, 2024/51, 118p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.26186/149794","AGE_ENTRY_DATE":"2024-09-24","AGE_LAST_UPDATED":"2026-02-18"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.6591","geometry":{"type":"Point","coordinates":[122.76891,-32.9747]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":6591,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU6660907","IGSN":"10273/AU6660907","SAMPLENO":6660907,"SAMPLE_ID":"182459.1","AGE_MA":1156,"AGE_MA_UNCERTAINTY":5,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"not captured","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"U/Pb not captured","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"age of igneous crystallization","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSWA","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":null,"LITHOLOGY":null,"MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"NORSEMAN_182459.1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS648668","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Fraser Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-32.9747,"LONG_GDA94":122.76891,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Geological Survey of Western Australia geochronology dataset","AGE_PUBLICATION_LINKS":"http://geodownloads.dmp.wa.gov.au/downloads/Geochron/pdfs/182459.1.pdf","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2021-01-14"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.1704","geometry":{"type":"Point","coordinates":[131.683273,-26.319868]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":1704,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU3081601","IGSN":"10273/AU3081601","SAMPLENO":3081601,"SAMPLE_ID":"W-122a","AGE_MA":525,"AGE_MA_UNCERTAINTY":1,"AGE_CONFIDENCE_LEVEL":"1 standard deviation","AGE_MSWD":null,"NUMBER_OF_ANALYSES":1,"CALCULATION_TYPE":"total fusion","GEOLOGICAL_EVENT":"deformation","ISOTOPIC_SYSTEM":"Ar/Ar","ISOTOPIC_RATIO":"40Ar/39Ar","MINERAL":"K-feldspar","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"unknown: unknown","ANALYTICAL_COLLECTION_SYSTEM":"unknown: unknown","LABORATORY_NAME":"Unknown","AGE_INTERPRETED_FROM_SOURCE":"age of shearing","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"ANU compilation","PROJECT":"ISOTOPE","STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"unnamed granulite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metamorphosed acid igneous rock","LITHOLOGY":"granulite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"W-122a","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS641322","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Musgrave Region","REGION_NAME_SOURCE":"Mount Woodroffe area - Musgrave Block","STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-26.319868,"LONG_GDA94":131.683273,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Waltenberg, K.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"72352","AGE_REF":"Camacho, A., McDougall, I., Armstrong, R., Braun, J., 2001. 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A geochronological framework for the Gawler Craton, South Australia. 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http://www.ga.gov.au/geochron-sapub-web/), 23 October 2019","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":null,"LITHOLOGY":null,"MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"drill chips/cuttings","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"Harvey 1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH559096","BOREHOLE_TOP_DEPTH_M":450,"BOREHOLE_BASE_DEPTH_M":450,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-32.991886,"LONG_GDA94":115.774489,"ELEV_M_AHD":19,"ACCURACY_M":100,"LOCATION_METHOD":"company supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Queensland Department of Mines and Energy","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"71377","AGE_REF":"Lewis, C.J., 2017. SHRIMP U-Pb isotopic results, GSWA Harvey 1, Western Australia. Geoscience Australia. Record, 2017/20, 110p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.11636/Record.2017.020","AGE_ENTRY_DATE":"2019-10-23","AGE_LAST_UPDATED":"2020-11-02"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15081","geometry":{"type":"Point","coordinates":[150.01288499,-24.19431817]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15081,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU7994523","IGSN":"10.60494/dkg1-tf32","SAMPLENO":7994523,"SAMPLE_ID":"DPPA116","AGE_MA":90.55,"AGE_MA_UNCERTAINTY":0.63,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.96,"NUMBER_OF_ANALYSES":20,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":"GA6503","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Geoscience Australia","AGE_INTERPRETED_FROM_SOURCE":"Magmatic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":40128,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU40128","STRAT_UNIT_NAME":"Mount Cooper Trachyte","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Mount Cooper Trachyte aegirine-feldspar vein","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate intrusive rock","LITHOLOGY":"vein","MODE_OF_OCCURRENCE":"vein","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"The Mount Cooper Trachyte crops out ca 21 km east of Baralaba in central Queensland. It forms open hilly country that rises to a height of 310 m (Mount Cooper) above plains formed on the Permian Back Creek Group (Bowen Basin) and Quaternary alluvial deposits. Withnall et al. (2009) described the unit (therein named the Mount Cooper Volcanics) as comprising a base of andesite breccias and flows, overlain by trachyte and rhyolite flows and coarse breccia, and interpreted a ring dyke and dome in the western part of the unit as a vent area (Withnall et al., 2009). New fieldwork conducted by GSQ as part of the Peralkaline Magmatic Systems Project (Purdy and Bultitude, 2022) found that the unit comprises an extensive conglomerate (dominated by clasts of intermediate composition) and minor intermediate lavas, intruded by several generations of rhyolite to trachyte dykes, as well as small pods of granite and pegmatite. Purdy and Bultitude (2022) interpreted the Mount Cooper Trachyte as a relatively thin layer overlying the Back Creek Group, which is exposed as inliers well within the interior of the mapped unit. The western part of the Mount Cooper Trachyte includes large areas of pegmatite, as well as intermediate lavas and polymict conglomerates intruded by felsic dykes. At one locality, ca 1.2 km west-southwest of the Mount Cooper summit, the conglomerates are cut by a network of unusual aegirine-feldspar veins up to ca 10 cm wide, which contain zircon and are anomalously rich in HFSE. We sampled this vein material for geochronology to compare with the age of the trachyte dyke (sample 7994522/DPPA119).","SAMPLING_FEATURE_NAME":"DPPA116","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS866724","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-24.1943181721,"LONG_GDA94":150.01288499,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":"Mount Cooper","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Geological Survey of Queensland (GSQ)","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75851","AGE_REF":"Kositcin, N., Purdy, D.J., Beattie, E., Spence, J., von Gnielinski, F.E., Simpson, B.P., Platt, S., 2024. Summary of results. Joint GSQ-GA Geochronology Project: Peralkaline Magmatic Systems and Northeast Queensland Deposits projects, 2023-2024. Geoscience Australia. Record, 2024/53, 93p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.26186/149782","AGE_ENTRY_DATE":"2024-10-30","AGE_LAST_UPDATED":"2024-10-30"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.7554","geometry":{"type":"Point","coordinates":[119.83043419,-28.49226536]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":7554,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1573440","IGSN":"10273/AU1573440","SAMPLENO":1573440,"SAMPLE_ID":"169074","AGE_MA":3131,"AGE_MA_UNCERTAINTY":3,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"not captured","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"U/Pb not captured","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"maximum depositional age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSWA","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metasedimentary siliciclastic rock","LITHOLOGY":"quartzite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"quartzite","SAMPLING_FEATURE_NAME":"169074","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS127164","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Yilgarn Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-28.492265365,"LONG_GDA94":119.8304341866,"ELEV_M_AHD":461,"ACCURACY_M":50,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Nelson, D.R.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Geological Survey of Western Australia geochronology dataset","AGE_PUBLICATION_LINKS":"http://geodownloads.dmp.wa.gov.au/downloads/Geochron/pdfs/169074.1.pdf","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2021-01-14"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.7050","geometry":{"type":"Point","coordinates":[120.220492,-21.26759244]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":7050,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1576388","IGSN":"10273/AU1576388","SAMPLENO":1576388,"SAMPLE_ID":"169038","AGE_MA":3315,"AGE_MA_UNCERTAINTY":2,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.08,"NUMBER_OF_ANALYSES":21,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"age of igneous crystallization","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSWA","PROJECT":null,"STRATNO":39505,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU39505","STRAT_UNIT_NAME":"Kennell Granodiorite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Yandicoogina Granodiorite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granodiorite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"biotite-hornblende granodiorite","SAMPLING_FEATURE_NAME":"169038","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS127115","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Pilbara Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-21.2675924384,"LONG_GDA94":120.2204920023,"ELEV_M_AHD":308,"ACCURACY_M":50,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Nelson, D.R.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Nelson, DR 2002, 169038: biotite-hornblende granodiorite, Outcamp Well; Geochronology Record 153: Geological Survey of Western Australia, 4p.","AGE_PUBLICATION_LINKS":"http://geodownloads.dmp.wa.gov.au/downloads/Geochron/pdfs/169038.1.pdf","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2020-11-16"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.13841","geometry":{"type":"Point","coordinates":[139.80073702,-21.45268003]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":13841,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU7937589","IGSN":"10273/AU7937589","SAMPLENO":7937589,"SAMPLE_ID":"DPMI161","AGE_MA":1726.7,"AGE_MA_UNCERTAINTY":4.3,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.27,"NUMBER_OF_ANALYSES":28,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"GA6487","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Geoscience Australia","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":76904,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU76904","STRAT_UNIT_NAME":"Mayfield Gneiss","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Mayfield Gneiss","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Very little has been written about the Mayfield Gneiss, which forms a northerly trending zone (~8 km2) ~13 km long and up to ~2 km wide on the western margin of the Corella Formation, ~12.5 km southwest of Duchess, at the contact between the Mary Kathleen Domain and older basement rocks of the Kalkadoon-Leichhardt Domain. The Mayfield Gneiss was delineated as a discrete stratigraphic unit in the GIS data package accompanying the North-West Queensland Mineral and Energy Province Report (Geological Survey of Queensland, 2011), where it was briefly described as ‘Thinly interlayered to massive, cream to grey, fine- to medium-grained, strongly foliated, equigranular to locally porphyritic granitic, granodioritic and amphibolitic gneiss’ with numerous strongly foliated leucogranite sills and veins that intrude strongly foliated calc-silicate granofels of the Corella Formation (GIS attribute table of Geological Survey of Queensland, 2011; P.J.T. Donchak field notebook). Carter et al. (1961) and Carter & Öpik (1963) included the Mayfield Gneiss in the c. 1860 Ma Kalkadoon Granite, before Bultitude et al. (1982a, b) remapped it partly as Mount Erle Igneous Complex and partly as Bushy Park Gneiss?, interpreting both units to post-date the Corella Formation. Blake et al. (1984) and Blake (1987) included both the Mount Erle Igneous Complex and the Bushy Park Gneiss in the Wonga Batholith, inferring a post-1790 Ma age for each. Geological Survey of Queensland (2011) interpreted both the Mayfield Gneiss and the Bushy Park Gneiss (to the east) as having been emplaced into the Mary Kathleen Domain during the 1740-1730 Ma Wonga/Burstall magmatic event, but did not specify why the two are separate map-units. Two thin lenses of Bushy Park Gneiss (comprising granitic gneiss and amphibolite) are shown interleaved with Corella Formation rocks only ~1 km to the east of the Mayfield Gneiss SHRIMP sampling site (Geological Survey of Queensland, 2011). In contrast, Hutton & Withnall (2013, table 2.2) grouped the Mayfield Gneiss with the significantly older Kalkadoon Granodiorite and other basement granitoids in the Kalkadoon Batholith (Kalkadoon-Leichhardt Domain), thereby inferring a crystallisation age of ~1860 Ma. A sample was collected from the Mayfield Gneiss for U-Pb (SHRIMP) zircon dating to better constrain the age of the unit, and to compare it with the age of the Bushy Park Gneiss and the Mount Erle Igneous Complex (Bultitude et al., 1982a, b). Gneissic granodiorite from the Bushy Park Gneiss exposed ~11 km to the north (sample 6619615/BB5928) recently yielded a basement age of 1860 +/- 5 Ma (Kositcin et al., 2021), whereas the Mount Erle Igneous Complex near Duchess (sample 2808847/BB5933) yielded an age of 1735 +/- 3 Ma (Kositcin et al., 2019). The Mayfield Gneiss sample (7937589/DPMI161) is from a prominent outcrop of pale pink, fine-grained, biotite granite with a well-developed foliation, on the southern side of a station track, ~1.7 km east of the main Duchess-Dajarra road. The granite is probably part of the leucogranite sills and dykes briefly described in the GIS attribute table of Geological Survey of Queensland (2011). The granite is even grained (average grainsize ~0.5 mm) and comprises mainly anhedral-subhedral grains of plagioclase (~35%; as turbid grains), K-feldspar (~35%; microcline), and quartz (~25%). Plagioclase grains are variably sericitised. Quartz and microcline grains generally show undulose extinction. Biotite (~7%) is the main mafic mineral. The biotite grains are dark brown, and they commonly show a preferred alignment. Accessory and secondary minerals include zircon, apatite, muscovite, sericite, chlorite, scapolite, calcite, and epidote. However, the granite is not extensively altered.","SAMPLING_FEATURE_NAME":"DPMI161","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS817757","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Mount Isa Region","REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-21.4526800271,"LONG_GDA94":139.8007370187,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Kositcin, N.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75080","AGE_REF":"Kositcin, N., Bultitude, R.J., Purdy, D.J., 2023. Summary of results. Joint GSQ-GA geochronology project, Kalkadoon-Leichhardt and Mary Kathleen Domains, 2018-2020. Geoscience Australia. Record, 2023/41, 46p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.26186/148600","AGE_ENTRY_DATE":"2023-09-26","AGE_LAST_UPDATED":"2026-02-18"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.7424","geometry":{"type":"Point","coordinates":[149.43525,-22.85066111]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":7424,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU6660799","IGSN":"10273/AU6660799","SAMPLENO":6660799,"SAMPLE_ID":"RSC093","AGE_MA":348.9,"AGE_MA_UNCERTAINTY":4.8,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.3,"NUMBER_OF_ANALYSES":11,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"U/Pb not captured","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"igneous crystallisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":"NA","AGE_REMARK_FROM_SOURCE":"For 11 of 15 analyses; 2 older; 1 with Pb loss","AGE_SOURCE":"GSQ compilation, 2016","PROJECT":null,"STRATNO":41800,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU41800","STRAT_UNIT_NAME":"Clive Creek Volcanics","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Clive Creek Volcanics","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous volcanic rock","LITHOLOGY":"ignimbrite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"ST LAWRENCE_RSC093","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS648560","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Proserpine Region","REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-22.85066111,"LONG_GDA94":149.43525,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"65388","AGE_REF":"Withnall, I.W., Hutton, L.J., Bultitude, R.J., von Gnielinski, F.E., Rienks, I.P., 2009. 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Northern Territory Geological Survey Record, 2008-003, 180p.","AGE_PUBLICATION_LINKS":"https://geoscience.nt.gov.au/gemis/ntgsjspui/handle/1/82446","AGE_ENTRY_DATE":"2019-07-25","AGE_LAST_UPDATED":"2020-11-16"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.1158","geometry":{"type":"Point","coordinates":[130.66704773,-21.97817026]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":1158,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU2614782","IGSN":"10273/AU2614782","SAMPLENO":2614782,"SAMPLE_ID":"MT16MVM008","AGE_MA":1586,"AGE_MA_UNCERTAINTY":4,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.46,"NUMBER_OF_ANALYSES":21,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"GA6341","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Geoscience Australia","AGE_INTERPRETED_FROM_SOURCE":"Age of magmatic crystallization of (meta-)igneous rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"The magmatic crystallisation age of 1586 +/- 4 Ma interpreted for the Wabudali Granite also provides a maximum age (and probably approximates the true age) for tungsten and copper mineralisation hosted in more evolved pegmatite phases of the Wabudali Granite at the Singleton Bore/Wilson?s Find tungsten prospect.","AGE_SOURCE":"Updated from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 20 September 2019","PROJECT":null,"STRATNO":23115,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU23115","STRAT_UNIT_NAME":"Wabudali Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Wabudali Granite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"A sample of Wabudali Granite was collected from the walls of an abandoned tungsten working at Singleton Bore/Wilson’s Find. This location is 2.5 km east of a station track connecting Singleton Bore with Buger Creek Bore, on the southernmost extent of Chilla. At the sample locality, a fractionated evolved phase of the Wabudali Granite hosts veined tungsten mineralisation, which is interpreted to be genetically related to granite emplacement. The sampled lithology is an unaltered and undeformed coarse-grained granite comprising megacrystic K-feldspar phenocrysts with distinct biotite and muscovite as accessory minerals. Locally the granite is tourmaline-rich, suggesting an evolved chemistry. The granite is intruded by aplite dykes and tourmaline-bearing pegmatites and quartz veins associated with tungsten and minor copper mineralisation. The aplite, pegmatite and associated veining are interpreted as representing the last, most fractionated vestiges of melt from the crystallising Wabudali Granite.","SAMPLING_FEATURE_NAME":"MT16MVM008","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS601723","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Arunta Region","REGION_NAME_SOURCE":null,"STATE":"NT","COUNTRY":"AUS","LAT_GDA94":-21.9781702618,"LONG_GDA94":130.6670477302,"ELEV_M_AHD":null,"ACCURACY_M":999,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Kositcin, N.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"71350","AGE_REF":"Kositcin, N., McGloin, M.V., 2017. Summary of results. Joint NTGS-GA geochronology project: Aileron Province, July 2016-June 2017. Northern Territory Geological Survey Record, 2017-011, 16p.","AGE_PUBLICATION_LINKS":"https://geoscience.nt.gov.au/gemis/ntgsjspui/handle/1/86530","AGE_ENTRY_DATE":"2017-10-20","AGE_LAST_UPDATED":"2019-09-20"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15037","geometry":{"type":"Point","coordinates":[143.86039311,-17.00624729]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15037,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9402789","IGSN":"10.60494/2g9r-sz38","SAMPLENO":9402789,"SAMPLE_ID":"BB6017A","AGE_MA":1562,"AGE_MA_UNCERTAINTY":5,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.33,"NUMBER_OF_ANALYSES":15,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"metamorphism","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"GA6506","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Geoscience Australia","AGE_INTERPRETED_FROM_SOURCE":"Metamorphism","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"PLb-Gt","UNIT_NAME_SOURCE":"solid geology unit PLb (INFORMAL_UNIT_NAME updated in 2025 using Queensland Detailed Solid Geology WMS)","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metamorphic rock","LITHOLOGY":"gneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Basement core analysed from drillhole Karumba KAN_0004_1 consists mainly of fine-grained (sillimanite–) garnet–biotite paragneiss with well-developed compositional banding. The gneiss has been assigned to the same solid geology unit (unit PLb, GSQ’s digital solid geology coverage) as the gneiss intersected in drillhole Karumba KARU_0013_1 located ca 8 km farther west. The gneiss has an average groundmass grainsize of ca 0.5 mm and consists mainly of quartz and biotite together with minor garnet as small but conspicuous porphyroblasts. Other minor and accessory minerals include sillimanite, sodic plagioclase (as scattered untwinned, mainly anhedral grains up to ca 2 mm across), muscovite (generally associated with biotite), titanite, and zircon. Sparse myrmekitic intergrowths between quartz and feldspar are also present. Biotite grains commonly show undulose extinction and curved cleavage planes.\r\nRelatively coarse, black, irregular grains tentatively identified as secondary hematite (with red streak) after pyrite? is the main secondary mineral. Other secondary minerals include chlorite (after biotite and garnet), sericite/fine muscovite (mainly after sillimanite and relatively coarse muscovite), and calcite (after plagioclase). \r\nThe gneiss is extensively deformed, and the foliation is commonly crenulated.","SAMPLING_FEATURE_NAME":"KAN_0004_1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH887354","BOREHOLE_TOP_DEPTH_M":105.7,"BOREHOLE_BASE_DEPTH_M":107,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-17.0062472944,"LONG_GDA94":143.8603931085,"ELEV_M_AHD":156,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Kositcin, N.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75850","AGE_REF":"Kositcin, N., Bultitude, R.J., 2024. New SHRIMP U-Pb ages from the Georgetown and Cairns regions, Queensland: NE Queensland Solid Geology Project, 2023-2024. Geoscience Australia. Record, 2024/51, 118p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.26186/149794","AGE_ENTRY_DATE":"2024-09-24","AGE_LAST_UPDATED":"2026-02-18"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.9461","geometry":{"type":"Point","coordinates":[142.65981,-37.76601]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":9461,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU2168279","IGSN":"10273/AU2168279","SAMPLENO":2168279,"SAMPLE_ID":"7","AGE_MA":495,"AGE_MA_UNCERTAINTY":2,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"not reported","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Titanite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"isotope dilution: two-stage column separation","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: unknown model","LABORATORY_NAME":"University of Melbourne","AGE_INTERPRETED_FROM_SOURCE":"not recorded","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":13108,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU13108","STRAT_UNIT_NAME":"Mount Stavely Volcanic Complex","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"dacite greenstone","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous volcanic rock","LITHOLOGY":"igneous volcanic rock","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Sm-Nd data point","SAMPLING_FEATURE_NAME":"7_Nd","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS574919","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Lachlan Region","REGION_NAME_SOURCE":"Grampians-Stavely","STATE":"VIC","COUNTRY":"AUS","LAT_GDA94":-37.76601,"LONG_GDA94":142.65981,"ELEV_M_AHD":180,"ACCURACY_M":200,"LOCATION_METHOD":"other method","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Champion, D.C.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"63599","AGE_REF":"Whelan, J., Hergt, J., Woodhead, J., 2007. Granite - greenstone connection in western Victoria: an example from the Bushy Creek Igneous Complex. Australian Journal of Earth Sciences, 54(7), 975-990.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120090701488305","AGE_ENTRY_DATE":"2021-04-27","AGE_LAST_UPDATED":"2021-10-12"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.13526","geometry":{"type":"Point","coordinates":[138.84543697,-34.68141101]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":13526,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1680546","IGSN":"10273/AU1680546","SAMPLENO":1680546,"SAMPLE_ID":"R695752","AGE_MA":1609,"AGE_MA_UNCERTAINTY":5,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.7,"NUMBER_OF_ANALYSES":10,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"metamorphism","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"Z4697","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"metamorphism","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":1138,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU1138","STRAT_UNIT_NAME":"Barossa Complex","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metamorphosed acid igneous rock","LITHOLOGY":"orthogneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Sample R695752 is a strongly foliated granitic gneiss forming a massive body 3-4 km thick, with a well-defined planar gneissosity. The rock is dominated by quartz and plagioclase in equal portions. Segregations of biotite define the gneissosity which wraps rounded K-feldspar augens up to 3 cm. Plagioclase and biotite are retrogressed to sericite. This W margin of the granite gneiss intrudes the surrounding metasedimentary rocks, and it has a sheared margin fabric (in contact with basement metasediments) which parallels the gneiss along its E edge. In thin section, it displays a coarse-grained granitoid texture, strongly modified by phyllonitic deformation and alteration. Texturally the rock comprises elongated lithons of relict coarse-grained granitoid, and subparallel to anastomosing bands dominated by foliated sericite and lesser biotite. Quartz forms anhedral grains with moderate shadowy strain extinction in the granitoid lithons, and represents relict primary igneous quartz. K-feldspar is restricted to the granitoid lithons, with blocky phenocrysts ranging up to ~4 mm long. Most K-feldspar displays \"tartan\" microcline twinning, but large K-feldspar phenocrysts lack such twinning and appears to represent relict primary orthoclase. Minor albite occurs in some granitoid lithons, and forms optically continuous replacements of primary anhedral plagioclase grains. Minor biotite forms (1) rare small euhedral platy inclusions (with dark chocolate brown to straw yellow pleochroism) in some large quartz grains (interpreted as primary igneous biotite), and (2) rare aggregates of small flakes in the granitoid lithons, interpreted as metamorphic biotite replacing primary ferromagnesian minerals, and (3) most commonly small flakes, pleochroic from tan brown to pale yellow, in aggregates elongated within subparallel strongly foliated sericite-rich bands that traverse the rock. Accessory minerals include opaque oxide minerals, titanite, zircon, allanite and tourmaline.","SAMPLING_FEATURE_NAME":"R695752","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS352293","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Adelaide Region","REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-34.6814110056,"LONG_GDA94":138.8454369705,"ELEV_M_AHD":225,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":"This sample is located in the northern Houghton Inlier approximately 4 km E of Williamstown in the South Para River gorge, 100 m downstream from where the river crosses Bassnet Road, very close to the Terranechron sample site of Belousova et al. (2006).","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Marjoribanks, R.W.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73105","AGE_REF":"Jagodzinski, E.A., Szpunar, M., Meaney, K., Fraser, G., 2020. SHRIMP U-Pb dating of the Barossa Complex, South Australia: exploring tectonic links between the Gawler Craton and Curnamona Province. Geological Survey of South Australia. 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SHRIMP U-Pb zircon ages from Kutjara 1 and Mulyawara 1, northwestern South Australia. Geoscience Australia. 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187Os/188Os","MINERAL":"Molybdenite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"isotope dilution: two-stage column separation","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: ThermoFinnigan Neptune MC-ICPMS","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"mineralisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous rock","LITHOLOGY":"vein quartz","MODE_OF_OCCURRENCE":"vein","SAMPLE_TYPE":"core","SAMPLE_DESC":"Schofield (ed) 2018: \"Quartz vein hosting molybdenite, within unnamed porphyry\"","SAMPLING_FEATURE_NAME":"SMD003","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH598617","BOREHOLE_TOP_DEPTH_M":288.5,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":"Grampians-Stavely Zone","STATE":"VIC","COUNTRY":"AUS","LAT_GDA94":-37.6096427813,"LONG_GDA94":142.6039447184,"ELEV_M_AHD":263,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Lewis, C.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"71593","AGE_REF":"Schofield, A., 2018. Regional geology and mineral systems of the Stavely Arc, western Victoria. Geoscience Australia. Record, 2018/02, 220p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.11636/Record.2018.002","AGE_ENTRY_DATE":"2021-03-25","AGE_LAST_UPDATED":"2021-10-12"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.7754","geometry":{"type":"Point","coordinates":[116.5782,-22.8009]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":7754,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU6661316","IGSN":"10273/AU6661316","SAMPLENO":6661316,"SAMPLE_ID":"169084.1","AGE_MA":2446,"AGE_MA_UNCERTAINTY":8,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.91,"NUMBER_OF_ANALYSES":16,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"maximum depositional age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSWA","PROJECT":null,"STRATNO":25778,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU25778","STRAT_UNIT_NAME":"Beasley River Quartzite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Beasley River Quartzite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"medium-coarse grained siliciclastic rock","LITHOLOGY":"sandstone","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"WYLOO_169084.1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS649077","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Ashburton Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-22.8009,"LONG_GDA94":116.5782,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Nelson, DR 2004, 169084: ferrigenous sandstone, Miringee Well; Geochronology Record 43: Geological Survey of Western Australia, 5p.","AGE_PUBLICATION_LINKS":"http://geodownloads.dmp.wa.gov.au/downloads/Geochron/pdfs/169084.1.pdf","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2020-11-16"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.13801","geometry":{"type":"Point","coordinates":[142.31415181,-10.60622864]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":13801,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU2678818","IGSN":"10273/AU2678818","SAMPLENO":2678818,"SAMPLE_ID":"QFG8798A","AGE_MA":309.9,"AGE_MA_UNCERTAINTY":1.5,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.92,"NUMBER_OF_ANALYSES":29,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":"GA6380","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Geoscience Australia","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"unnamed rhyolite","UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid igneous rock","LITHOLOGY":"rhyolite","MODE_OF_OCCURRENCE":"dyke","SAMPLE_TYPE":"core","SAMPLE_DESC":"This sample was collected at the Alice Queen exploration camp on Horn Island, Torres Strait, in June 2016 from exploration drillhole 16NGD010 (40.0-43.7 m), drilled by Alice Queen Limited in 2016 on behalf of its subsidiary company, Kauraru Gold Pty Ltd (Kauraru Gold Pty Ltd, 2016). It was drilled into rocks north of the Pioneer Reef on the western margin of the Horn Island open cut gold mine. The rhyolite dyke sampled is recognised as one of the major post-mineralisation dykes within the Horn Island mine area (von Gnielinski, 1996), intrudes all phases of the Badu and Horn Island intrusive rocks, and cuts the gold-sulphide-quartz veins. The sampled rhyolite is a cream to light brown porphyritic rock with phenocrysts of quartz (3-5%, 1-4 mm, clear to translucent, angular to sub angular grain-shape), weakly, illite-sericitised plagioclase (~10-15%, 1-3 mm, light pink), sericite-carbonate-altered K-feldspar (~10%, 1-4 mm, rarely up to 6 mm, light orange, angular euhedral laths), and heavily chloritised biotite (1-2%, 1-2 mm, greenish-black). The alteration is a weak to moderate phyllic-style alteration which notably lacks associated sulphides.","SAMPLING_FEATURE_NAME":"16NGD010","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH625738","BOREHOLE_TOP_DEPTH_M":40,"BOREHOLE_BASE_DEPTH_M":43.7,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-10.6062286431,"LONG_GDA94":142.3141518149,"ELEV_M_AHD":23,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Geological Survey of Queensland (GSQ)","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75068","AGE_REF":"Cross, A.J., von Gnielinski, F.E., Lisitsin, V., Dhnaram, C., 2023. Summary of results. Joint GSQ-GA Geochronology Project: Horn Island, Torres Strait, 2016-2017. Geoscience Australia. Record, 2023/37, 29pp.","AGE_PUBLICATION_LINKS":"https://doi.org/10.26186/147699","AGE_ENTRY_DATE":"2023-08-15","AGE_LAST_UPDATED":null}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.7823","geometry":{"type":"Point","coordinates":[119.39551,-20.3438]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":7823,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU6661313","IGSN":"10273/AU6661313","SAMPLENO":6661313,"SAMPLE_ID":"169026.1","AGE_MA":3458,"AGE_MA_UNCERTAINTY":9,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.61,"NUMBER_OF_ANALYSES":5,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"maximum depositional age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSWA","PROJECT":null,"STRATNO":19508,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU19508","STRAT_UNIT_NAME":"Warrawoona Group","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Warrawoona Group","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous volcanic rock","LITHOLOGY":"volcaniclastic sandstone","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"PORT HEDLAND_BEDOUT ISLAND_169026.1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS649074","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Pilbara Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-20.3438,"LONG_GDA94":119.39551,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Nelson, DR 2004, 169026: volcaniclastic metasandstone, Lawson Well; Geochronology Record 61: Geological Survey of Western Australia, 5p.","AGE_PUBLICATION_LINKS":"http://geodownloads.dmp.wa.gov.au/downloads/Geochron/pdfs/169026.1.pdf","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2020-11-16"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.16053","geometry":{"type":"Point","coordinates":[145.39627852,-17.37848185]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":16053,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11088652","IGSN":"10.60494/br3m-t366","SAMPLENO":11088652,"SAMPLE_ID":"HBT15-063","AGE_MA":347,"AGE_MA_UNCERTAINTY":3.4,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"not reported","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"U/Pb not reported","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: GeoLas 193nm ArF laser ablation system","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Varian 820 series","LABORATORY_NAME":"James Cook University","AGE_INTERPRETED_FROM_SOURCE":"Magmatic origin","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"unknown","SAMPLE_DESC":"Granite","SAMPLING_FEATURE_NAME":"HERBERTON HILL","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS1083042","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-17.3784818517,"LONG_GDA94":145.3962785244,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":"Derived from Herberton Hill Group mineral deposit location","SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Cheng, Y.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Cheng, Y., Chang, Z., Clarke, G., Creaser, R.A., Hall, C.M., Liu, K., Johnson, R., in preparation, Episodic Sn, W, and W-Mo mineralisation in northeast Queensland, Australia. Australian Journal of Earth Sciences. Some details confirmed by Yanbo Cheng (pers comms, 26 May 2026)","AGE_PUBLICATION_LINKS":null,"AGE_ENTRY_DATE":"2026-06-09","AGE_LAST_UPDATED":"2026-06-09"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.4296","geometry":{"type":"Point","coordinates":[140.3884385,-21.63003547]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":4296,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU2614043","IGSN":"10273/AU2614043","SAMPLENO":2614043,"SAMPLE_ID":"SSMI-068","AGE_MA":1758,"AGE_MA_UNCERTAINTY":47,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.97,"NUMBER_OF_ANALYSES":3,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"GA6339","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Geoscience Australia","AGE_INTERPRETED_FROM_SOURCE":"Age of magmatic crystallization of (meta-)igneous rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"Inserted from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 23 October 2019","PROJECT":null,"STRATNO":7245,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU7245","STRAT_UNIT_NAME":"Gin Creek Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Gin Creek Granite (tentatively assigned)","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"leucocratic granite","SAMPLING_FEATURE_NAME":"SSMI-068","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS601702","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Mount Isa Region","REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-21.6300354676,"LONG_GDA94":140.3884384981,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Lewis, C.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"72889","AGE_REF":"Lewis, C.J., Withnall, I.W., Hutton, L.J., Bultitude, R.J., Slade, A.P., Sargent, S., 2020. Summary of results. Joint GSQ-GA geochronology project: Mount Isa region, 2016-2017. Queensland Geological Record, 2020/01, 71p.","AGE_PUBLICATION_LINKS":"https://geoscience.data.qld.gov.au/report/cr118186","AGE_ENTRY_DATE":"2019-10-23","AGE_LAST_UPDATED":"2026-02-18"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.13734","geometry":{"type":"Point","coordinates":[139.69884976,-29.98335686]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":13734,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU2127343","IGSN":"10273/AU2127343","SAMPLENO":2127343,"SAMPLE_ID":"R1851562","AGE_MA":1582,"AGE_MA_UNCERTAINTY":5,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1,"NUMBER_OF_ANALYSES":19,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"GA6182","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Geoscience Australia","AGE_INTERPRETED_FROM_SOURCE":"Magmatic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"saccharoidal granite M14","UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metamorphosed acid igneous rock","LITHOLOGY":"gneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"M14 of Sheard (2009) Saccharoidal granite, Parabarana area. The sample is a weathered and altered quartz-syenite gneiss with K-feldpar augen, lenses of altered biotite, primary and secondary quartz, sparse zircon, secondary muscovite and irregular voids. In hand specimen the rock displays a saccharoidal texture and seems to represent red, hematite-stained quartzofeldspathic gneiss.  The stained offcut shows abundant K-spar, quartz as lenses and laminations and rare plagioclase. Larger K-feldspar grains in the thin section occur as augen and aggregates to 12mm long, with abundant fine-grained K-feldspar, mostly less than 2mm long, partly showing microcline twining, in the host rock.  Quartz is disseminated and in irregular lenses, mostly less that 1m in grainsize and mostly anhedral.  However, zoned and prismatic crystals occur, locally with very fine-grained quartz, close to voids and in veinlets with elongate small voids.  A small patch of plagioclase can be seen on the stained offcut but is not evident in the thin section.  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Contains rare metasedimentary xenoliths; crosscuts and intrudes metasedimentary gneisses.","SAMPLING_FEATURE_NAME":"R379725","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS923506","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-34.721912,"LONG_GDA94":139.110411,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Geological Survey of South Australia","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Burtt, A.C., Fanning, C.M., unpublished.","AGE_PUBLICATION_LINKS":null,"AGE_ENTRY_DATE":"2024-07-12","AGE_LAST_UPDATED":"2024-09-27"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14865","geometry":{"type":"Point","coordinates":[138.93955735,-34.71815126]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14865,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9678116","IGSN":"10.60494/w8v6-5c92","SAMPLENO":9678116,"SAMPLE_ID":"R387622","AGE_MA":812,"AGE_MA_UNCERTAINTY":6,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":1.2,"NUMBER_OF_ANALYSES":31,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"Magmatic crystallisation of the granitic precursor to the gneiss.","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":12599,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU12599","STRAT_UNIT_NAME":"Mount Crawford Granite Gneiss","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Mount Crawford Granite Gneiss","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metamorphosed acid igneous rock","LITHOLOGY":"felsic gneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Preiss et al. (2008): The Mount Crawford Granite Gneiss is a coarse-grained plagioclase-K-feldspar-quartz-muscovite-biotite-apatite gneiss containing a complex zircon population with euhedral and angular crystals, some with overgrowths. The granitic protolith has been metamorphosed at amphibolite facies, and displays a strong muscovite and biotite foliation dipping 68 degrees towards 066. Mills (1973) also recorded a SE-plunging lineation nearby. The zircons are equant to elongate subhedral grains, mostly 100-200 um in length. Under transmitted light the grains are cracked, many have prominent metamict areas and there are prominent opaque inclusions, with only subordinate areas of clear zircon. In some grains there is a thin rim of mottled zircon that appears to have overgrown a zoned igneous precursor. The CL images show that despite the cracks, inclusions and metamict areas, the grains comprise mostly a simple zoned igneous internal structure with variable bright and dark CL areas. The dark CL areas have little zoning; some appear as mottled areas under transmitted light, and in places such areas replace or overgrow the bright CL zoned igneous component as noted above.","SAMPLING_FEATURE_NAME":"R387622","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS923507","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Stuart Shelf","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-34.7181512634,"LONG_GDA94":138.9395573482,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Preiss, W.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"64647","AGE_REF":"Preiss, W.V., Fanning, C.M., Szpunar, M., Burtt, A.C., 2008. Age and tectonic significance of the Mount Crawford Granite Gneiss and a related intrusive in the Oakbank Inlier, Mount Lofty Ranges. MESA Journal, 49, 38-49.","AGE_PUBLICATION_LINKS":"https://pid.sarig.sa.gov.au/document/2018d040317","AGE_ENTRY_DATE":"2024-07-12","AGE_LAST_UPDATED":"2024-09-27"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14774","geometry":{"type":"Point","coordinates":[138.990354,-34.546792]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14774,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9678117","IGSN":"10.60494/6h37-cd90","SAMPLENO":9678117,"SAMPLE_ID":"R387623","AGE_MA":512.9,"AGE_MA_UNCERTAINTY":5.2,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.6,"NUMBER_OF_ANALYSES":15,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"Magmatic crystallisation age.","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Foden et al. (2006, Table 3) quoted this date as 513.4 +/- 4.0 Ma.","AGE_SOURCE":"Unpublished GSSA compilation","PROJECT":null,"STRATNO":17803,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU17803","STRAT_UNIT_NAME":"Tanunda Creek Gneiss","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Tanunda Creek Gneiss","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metamorphosed acid igneous rock","LITHOLOGY":"felsic gneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"SARIG: Medium-grained, grey, strongly foliated, porphyritic, plagioclase-quartz-biotite-Kfeldspar-hornblende-titanite-opaque oxide-apatite-zircon-allanite meta-porphyritic granitic gneiss. Metaluminous bulk composition of possible I-type origin. Rare euhedral relict primary igneous zircons. Includes finer-grained schist of possible microgranite origin i.e. two phases of intrusion.","SAMPLING_FEATURE_NAME":"R387623","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS923508","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-34.546792,"LONG_GDA94":138.990354,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Geological Survey of South Australia","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Burtt, A.C., Fanning, C.M., unpublished.","AGE_PUBLICATION_LINKS":null,"AGE_ENTRY_DATE":"2024-07-12","AGE_LAST_UPDATED":"2024-09-27"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15232","geometry":{"type":"Point","coordinates":[134.0766141,-29.4493927]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15232,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034287","IGSN":"10.60494/g9jr-wn88","SAMPLENO":11034287,"SAMPLE_ID":"650666","AGE_MA":2528,"AGE_MA_UNCERTAINTY":24,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":1.5,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"upper concordia intercept","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"238U/206Pb and 207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"AR-24","ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7700","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"maximum depositional age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"This rock has multiple age populations which suggests that is possibly metasedimentary in nature. It is possible that the youngest of the age populations within the rock at 2528 +/- 24 Ma defines a possible maximum depositional age for this rock.","AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":28826,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU28826","STRAT_UNIT_NAME":"Mulgathing Complex","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"quartzfeldspathic gneiss, Mulgathing Complex","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"foliated metamorphic rock","LITHOLOGY":"gneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Reid 2013: Sample 650666 is from the gneissic basement of the Wallira 1 drillhole, and was sampled in order to determine if it was part of the Mulgathing Complex. The sample is a feldspar-quartz-biotite gneiss.The hand specimen is a dark grey, fine grained foliated rock composed of quartz, felspar and biotite. A surface oblique to the foliation has green ?biotite grown on it and is possibly slickensided.","SAMPLING_FEATURE_NAME":"Wallira 1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH16582","BOREHOLE_TOP_DEPTH_M":217.83,"BOREHOLE_BASE_DEPTH_M":218.24,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-29.4493927,"LONG_GDA94":134.0766141,"ELEV_M_AHD":152,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2004-08-09","SAMPLE_ORIGINATOR":"Payne, J.L.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"76124","AGE_REF":"Reid, A.J., 2013. Reconnaissance LA-ICPMS zircon U-Pb geochronology from samples from the central-northern Gawler Craton. Geological Survey of South Australia. Report Book, 2013/00021, 20p.","AGE_PUBLICATION_LINKS":"https://pid.sarig.sa.gov.au/document/d20010642","AGE_ENTRY_DATE":"2025-10-29","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15134","geometry":{"type":"Point","coordinates":[140.34743444,-30.60521461]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15134,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034288","IGSN":"10.60494/9y76-t693","SAMPLENO":11034288,"SAMPLE_ID":"2049213","AGE_MA":1586.4,"AGE_MA_UNCERTAINTY":0.8,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.6,"NUMBER_OF_ANALYSES":6,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"isotope dilution: chemical abrasion and isotope dilution","ANALYTICAL_COLLECTION_SYSTEM":"TIMS: GV Isoprobe-T","LABORATORY_NAME":"Boise State University","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":75865,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU75865","STRAT_UNIT_NAME":"Finlay Dam Rhyolite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid volcanic rock","LITHOLOGY":"rhyodacite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"borehole specimen","SAMPLE_DESC":"Jagodzinski et al 2023: 2049213 is a pink, porphyritic, crystal-rich (52 modal %) rhyodacite containing orthoclase (24%) > plagioclase (19%) > quartz (7%) > ferromagnesians (2%) > Fe-Ti oxide > apatite and zircon, in fine-grained groundmass. The rock was modified by circulation of moderately low-temperature hydrothermal fluid, producing an albite + chlorite + sericite + hematite, with plagioclase replaced by albite + sericite +/- hematite, ferromagnesians replaced by chlorite +/- quartz, and K-feldspar phenocrysts slightly modified by minor albite exsolution. In the groundmass, hematite clouding stained the K-feldspar grains and small chlorite aggregates formed sparsely between the felsic grains. The rock was modified by circulation of moderately low-temperature hydrothermal fluid, producing an albite + chlorite + sericite + hematite, with plagioclase replaced by albite + sericite ± hematite, ferromagnesians replaced by chlorite +/- quartz, and K-feldspar phenocrysts slightly modified by minor albite exsolution. In the groundmass, hematite clouding stained the K-feldspar grains and small chlorite aggregates formed sparsely between the felsic grains.","SAMPLING_FEATURE_NAME":"BRD 013","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH513398","BOREHOLE_TOP_DEPTH_M":466,"BOREHOLE_BASE_DEPTH_M":484,"GEOLOGICAL_PROVINCE":"Curnamona Province","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-30.6052146055,"LONG_GDA94":140.3474344421,"ELEV_M_AHD":34,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2014-01-22","SAMPLE_ORIGINATOR":"Reid, A.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75868","AGE_REF":"Jagodzinski, E.A., Reid, A.J., Crowley, J.L., Wade, C.E., 2023. Precise zircon U-Pb dating of the Mesoproterozoic Gawler large igneous province, South Australia. Results in Geochemistry, 10, article 100020, 16p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.ringeo.2022.100020","AGE_ENTRY_DATE":"2025-10-24","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15146","geometry":{"type":"Point","coordinates":[140.41879,-30.71595]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15146,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034289","IGSN":"10.60494/geya-v260","SAMPLENO":11034289,"SAMPLE_ID":"2049215","AGE_MA":1587.3,"AGE_MA_UNCERTAINTY":0.5,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.6,"NUMBER_OF_ANALYSES":8,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"isotope dilution: chemical abrasion and isotope dilution","ANALYTICAL_COLLECTION_SYSTEM":"TIMS: GV Isoprobe-T","LABORATORY_NAME":"Boise State University","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":75865,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU75865","STRAT_UNIT_NAME":"Finlay Dam Rhyolite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid volcanic rock","LITHOLOGY":"rhyodacite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"borehole specimen","SAMPLE_DESC":"Jagodzinski et al 2023: 2049215 is a crystal-rich (55 modal %) porphyritic rhyodacite composed of abundant magmatically resorbed phenocrysts of K-feldspar (25%) > quartz (20%) > plagioclase (10%) >> ferromagnesians >> zircon and tourmaline, in fine-grained groundmass (K-feldspar > quartz >> plagioclase > biotite >> fluorite). Ferromagnesian phenocrysts occur as blocky crystals which have been completely replaced by mats of dark pleochroic green chlorite; the precursor phase may have been pyroxene, but none is preserved for identification. Large anhedral K-feldspar and ragged flakes of biotite in the groundmass poikilitically enclose smaller quartz grains. Fluorite and tourmaline are moulded on the feldspar and quartz grains. Post-emplacement alteration generated new albite + minor sericite + chlorite + hematite + fluorite + tourmaline, with plagioclase phenocrysts replaced by albite + sericite, ferromagnesian phenocrysts replaced by chlorite, groundmass K-feldspar clouded by hematite, groundmass biotite partly replaced by chlorite, and minor chlorite and fluorite formed pervasively through the groundmass. ","SAMPLING_FEATURE_NAME":"CU 1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH574512","BOREHOLE_TOP_DEPTH_M":435.55,"BOREHOLE_BASE_DEPTH_M":439,"GEOLOGICAL_PROVINCE":"Curnamona Province","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-30.71595,"LONG_GDA94":140.41879,"ELEV_M_AHD":36,"ACCURACY_M":200,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2014-01-22","SAMPLE_ORIGINATOR":"Reid, A.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75868","AGE_REF":"Jagodzinski, E.A., Reid, A.J., Crowley, J.L., Wade, C.E., 2023. Precise zircon U-Pb dating of the Mesoproterozoic Gawler large igneous province, South Australia. Results in Geochemistry, 10, article 100020, 16p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.ringeo.2022.100020","AGE_ENTRY_DATE":"2025-10-24","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15133","geometry":{"type":"Point","coordinates":[137.87051376,-34.53934494]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15133,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034297","IGSN":"10.60494/kqdg-ad13","SAMPLENO":11034297,"SAMPLE_ID":"R1831631","AGE_MA":1601,"AGE_MA_UNCERTAINTY":16,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.3,"NUMBER_OF_ANALYSES":9,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"hydrothermal alteration","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Titanite","MOUNT_ID":"#523","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP IIe","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"fluid flow event","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"The data show a range of discordance; up to ~30%. This range of discordance is mirrored in the range of the 207Pb/206Pb ages, which vary from a minimum of ~1541 Ma to a maximum of ~1716 Ma.","AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metasomatic rock","LITHOLOGY":"skarn","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Reid & Jagodzinski 2011: Sample R1831631 is a skarn-type rock comprising pyroxene-garnet-chlorite-hematite-quartz-K-feldspar-titanite altered rock, presumably having a metavolcanic or volcaniclastic protolith. Similar to sample R1831630, but more strongly chloritised and fractured, which may be reflected in the degree of disturbance of the titanite data.","SAMPLING_FEATURE_NAME":"HDD-016","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH938945","BOREHOLE_TOP_DEPTH_M":523,"BOREHOLE_BASE_DEPTH_M":523.1,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-34.5393449363,"LONG_GDA94":137.8705137559,"ELEV_M_AHD":0,"ACCURACY_M":10,"LOCATION_METHOD":"published report, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Reid, A.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"76117","AGE_REF":"Gregory, C., Reid, A., Say, P., Teale, G., 2011. Project PGC01-06: U-Pb geochronology of hydrothermal allanite and titanite and magmatic zircon from the Hillside Cu-Au Deposit, Yorke Peninsula. IN: Reid, A.J. and Jagodzinski, E.A. (Eds) 2011. PACE Geochronology: Results of collaborative geochronology projects 2009–10 South Australia. Department of Primary Industries and Resources South Australia. Mineral Exploration Data Package, RB 2011/00003, 95-124.","AGE_PUBLICATION_LINKS":"https://pid.sarig.sa.gov.au/document/d20010247","AGE_ENTRY_DATE":"2025-10-24","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15157","geometry":{"type":"Point","coordinates":[137.87051376,-34.53934494]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15157,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034298","IGSN":"10.60494/6evp-vd92","SAMPLENO":11034298,"SAMPLE_ID":"R1831630","AGE_MA":1586,"AGE_MA_UNCERTAINTY":11,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.9,"NUMBER_OF_ANALYSES":12,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"hydrothermal alteration","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Titanite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP IIe","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"fluid flow event","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"All analyses (n=15) are from a single large titanite grain.","AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metasomatic rock","LITHOLOGY":"skarn","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Reid & Jagodzinski 2011: Sample R1831630 is a strongly altered, pyroxene-garnet-chlorite-hematite-quartz-K-feldspar skarn-type rock. The large elongate pink coloured zones appear to be altered volcanic feldspar, suggesting the protolith was volcanic in origin. The groundmass is dominated by fine to medium-grained pyroxene (diopside) intergrown with irregular (likely Ca-rich) garnet. Titanite appears as large (>0.2 mm) euhedral crystals that in places are intergrown with hematite/magnetite grains. Since the early magnetite and later overprinting hematite phase is intimately associated with the chalcopyrite and other Cu-bearing sulphides the age of the titanite is likely to indicate the minimum age of the alteration and therefore, the introduction of Cu-Au mineralisation itself. The main difference between this sample from 371 m and sample R1831631 from 523 m [in the same drillhole], is the degree of chloritisation apparent, with the latter being more strongly chloritised and with many more through-going fractures within the sample.","SAMPLING_FEATURE_NAME":"HDD-016","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH938945","BOREHOLE_TOP_DEPTH_M":371,"BOREHOLE_BASE_DEPTH_M":371.1,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-34.5393449363,"LONG_GDA94":137.8705137559,"ELEV_M_AHD":0,"ACCURACY_M":10,"LOCATION_METHOD":"published report, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Reid, A.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"76117","AGE_REF":"Gregory, C., Reid, A., Say, P., Teale, G., 2011. 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Lithos, 430-431, 106860, 18p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.lithos.2022.106860","AGE_ENTRY_DATE":"2025-10-24","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15270","geometry":{"type":"Point","coordinates":[132.21627508,-31.78435108]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15270,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034260","IGSN":"10.60494/aw3a-bj93","SAMPLENO":11034260,"SAMPLE_ID":"2115492","AGE_MA":1581,"AGE_MA_UNCERTAINTY":7,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.5,"NUMBER_OF_ANALYSES":28,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"metamorphism","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Monazite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"University of Tasmania","AGE_INTERPRETED_FROM_SOURCE":"metamorphic age phase 1","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"The data form a unimodal age population","AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":28826,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU28826","STRAT_UNIT_NAME":"Mulgathing Complex","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"garnet, biotite-bearing quartzo-feldspathic gneiss, Nundroo Block of the Fowler Domain","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"foliated metamorphic rock","LITHOLOGY":"gneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"quarter core","SAMPLE_DESC":"Reid et al 2019: Sample 2115492 is a garnet, biotite-bearing quartzo-feldspathic gneiss from drill hole Nundroo 3 DDH. The sample contains garnet, biotite, plagioclase, K-feldspar and quartz. Trace pyrite, ilmenite, monazite, apatite and zircon are also observed. A strong foliation is defined by biotite and elongate quartz-feldspar domains. Garnet porphyroblasts are typically subidioblastic (<2mm) and inclusion-poor and biotite is observed to partly replace garnet at some grain margins. Pyrite and ilmenite are commonly intergrown with biotite. Monazite dating was undertaken on this sample in order to determine the timing of metamorphism; however, no phase equilibria modelling was performed as the peak metamorphic assemblage is stable over a wide range of P-T conditions.","SAMPLING_FEATURE_NAME":"Nundroo 3 DDH","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH595301","BOREHOLE_TOP_DEPTH_M":72.15,"BOREHOLE_BASE_DEPTH_M":75.4,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-31.7843510823,"LONG_GDA94":132.2162750776,"ELEV_M_AHD":20,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2015-02-11","SAMPLE_ORIGINATOR":"Reid, A.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73649","AGE_REF":"Reid, A.J., Halpin, J.A., Dutch, R.A., 2019. Timing and style of high-temperature metamorphism across the Western Gawler Craton during the Paleo- to Mesoproterozoic. Australian Journal of Earth Sciences, 66(8), 1085-1111.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099.2019.1602565","AGE_ENTRY_DATE":"2025-10-29","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15265","geometry":{"type":"Point","coordinates":[132.56952,-29.30901]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15265,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034261","IGSN":"10.60494/j02m-v011","SAMPLENO":11034261,"SAMPLE_ID":"R2131386","AGE_MA":1385,"AGE_MA_UNCERTAINTY":19,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.02,"NUMBER_OF_ANALYSES":27,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"cooling","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Apatite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"cooling through 550-350* C","OTHER_AGE_INTERPRETED_FROM_SOURCE":"Concordia intercept: 1384 +/- 25 Ma (MSWD 1.2)","AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":28826,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU28826","STRAT_UNIT_NAME":"Mulgathing Complex","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"paragneiss, drillhole OBD 01","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"foliated metamorphic rock","LITHOLOGY":"paragneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"GSSA drillhole database: Qtz/F-spar/chlor gneiss with hematite + calcite veins.","SAMPLING_FEATURE_NAME":"OBD 01","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH621000","BOREHOLE_TOP_DEPTH_M":139.35,"BOREHOLE_BASE_DEPTH_M":139.8,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-29.30901,"LONG_GDA94":132.56952,"ELEV_M_AHD":235,"ACCURACY_M":200,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2015-05-18","SAMPLE_ORIGINATOR":"Hall, J.W.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73434","AGE_REF":"Hall, J.W., Glorie, S., Reid, A.J., Boone, S.C., Collins, A.S., Gleadow, A., 2018. An apatite U-Pb thermal history map for the northern Gawler Craton, South Australia. Geoscience Frontiers, 9(5), 1293-1308.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.gsf.2017.12.010","AGE_ENTRY_DATE":"2025-10-29","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15177","geometry":{"type":"Point","coordinates":[132.8058533,-29.017528]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15177,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034265","IGSN":"10.60494/sbjr-n647","SAMPLENO":11034265,"SAMPLE_ID":"R2131380","AGE_MA":1276,"AGE_MA_UNCERTAINTY":31,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.5,"NUMBER_OF_ANALYSES":13,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"cooling","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Apatite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"cooling through 550-350* C","OTHER_AGE_INTERPRETED_FROM_SOURCE":"Concordia intercept: 1282 +/- 76 Ma (MSWD 1.9)","AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":84359,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU84359","STRAT_UNIT_NAME":"Karkaro Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"granite, drillhole OBD 8","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"GSSA drillhole database: Granite, biotite-bearing, equigranular to alkali feldspar porphyritic, unmetamorphosed.","SAMPLING_FEATURE_NAME":"OBD 08","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH895147","BOREHOLE_TOP_DEPTH_M":183.1,"BOREHOLE_BASE_DEPTH_M":183.9,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-29.017528,"LONG_GDA94":132.8058533,"ELEV_M_AHD":221,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2015-05-18","SAMPLE_ORIGINATOR":"Hall, J.W.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73434","AGE_REF":"Hall, J.W., Glorie, S., Reid, A.J., Boone, S.C., Collins, A.S., Gleadow, A., 2018. An apatite U-Pb thermal history map for the northern Gawler Craton, South Australia. 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Magmatism and metamorphism at ca. 1.45 Ga in the northern Gawler Craton: The Australian record of rifting within Nuna (Columbia). Geoscience Frontiers, 10(1), 175-194.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.gsf.2018.07.006","AGE_ENTRY_DATE":"2025-10-29","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15220","geometry":{"type":"Point","coordinates":[132.2554634,-29.6007933]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15220,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034269","IGSN":"10.60494/zt6f-js78","SAMPLENO":11034269,"SAMPLE_ID":"R2131385","AGE_MA":1289,"AGE_MA_UNCERTAINTY":32,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.3,"NUMBER_OF_ANALYSES":15,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"cooling","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Apatite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"cooling through 550-350* C","OTHER_AGE_INTERPRETED_FROM_SOURCE":"Concordia intercept: 1284 +/- 93 Ma (MSWD 3.2)","AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":28826,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU28826","STRAT_UNIT_NAME":"Mulgathing Complex","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"paragneiss, drillhole OBD 12, Yerda Shear Zone","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"foliated metamorphic rock","LITHOLOGY":"paragneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"GSSA drillhole database: Qtz-F-spar-phlogopite(garnet) gneiss. ","SAMPLING_FEATURE_NAME":"OBD 12","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH880269","BOREHOLE_TOP_DEPTH_M":470.2,"BOREHOLE_BASE_DEPTH_M":470.8,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-29.6007933,"LONG_GDA94":132.2554634,"ELEV_M_AHD":237,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2015-05-18","SAMPLE_ORIGINATOR":"Hall, J.W.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73434","AGE_REF":"Hall, J.W., Glorie, S., Reid, A.J., Boone, S.C., Collins, A.S., Gleadow, A., 2018. An apatite U-Pb thermal history map for the northern Gawler Craton, South Australia. Geoscience Frontiers, 9(5), 1293-1308.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.gsf.2017.12.010","AGE_ENTRY_DATE":"2025-10-29","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15231","geometry":{"type":"Point","coordinates":[133.66043112,-27.3482029]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15231,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034243","IGSN":"10.60494/xfzs-1t71","SAMPLENO":11034243,"SAMPLE_ID":"R1707903","AGE_MA":1131,"AGE_MA_UNCERTAINTY":27,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.77,"NUMBER_OF_ANALYSES":5,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"AR-13","ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"maximum depositional age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"These grains are most likely derived from the Musgrave Province, where voluminous I-type magmatism of the Pitjantjatjara Supersuite occurred between ca 1190 and 1120 Ma (Edgoose et al. 2004).","AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"sandstone, undifferentiated Proterozoic","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"medium-coarse grained siliciclastic rock","LITHOLOGY":"quartz sandstone","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Jagodzinski et al 2013: The sample represents unmetamorphosed well-bedded fine- to coarse-grained sandstone with optically continuous overgrowths. It is composed of quartz sandstone with bedding laminations from 2mm to 10mm in apparent thickness. Different layers have subrounded single crystal quartz grains and rare polycrystalline grains with limonite/earthy hematite-rimmed detrital cores having maximum grainsizes varying from 0.25mm to 1mm (fine to coarse-grained sandstone). These cores are cemented by optically continuous overgrowths. Sparse heavy minerals include tourmaline and opaque oxide (altered to earthy hematite) as well as subrounded elongate zircons to 0.2mm long. ","SAMPLING_FEATURE_NAME":"GOMA DH3","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH534726","BOREHOLE_TOP_DEPTH_M":155.08,"BOREHOLE_BASE_DEPTH_M":155.91,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-27.3482029043,"LONG_GDA94":133.6604311192,"ELEV_M_AHD":323,"ACCURACY_M":10,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2010-01-14","SAMPLE_ORIGINATOR":"Dutch, R.A.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"69203; 76115","AGE_REF":"Jagodzinski, E., Reid, A., 2010. New zircon and monazite geochronology from recent GOMA Drilling. IN: Korsch, R.J., Kositcin, N., Duan, J., Neumann, N.L., Costelloe, R. (eds). Presentations from the 2010 GOMA Seismic and MT Workshop. Geoscience Australia (GA), Part 10, 26.; Jagodzinski, E.A., Reid, A.J., Dutch, R., 2013. 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Location data from Supplementary Material of Foden et al. (2020), where it is listed as 1014.","SAMPLING_FEATURE_NAME":"A1014","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS923487","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-34.8576813111,"LONG_GDA94":139.14995602,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Foden, J.D.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75785","AGE_REF":"Turner, S., Ireland, T., Foden, J., Belousova, E., Worner, G., Keeman, J., 2022. A comparison of granite genesis in the Adelaide Fold Belt and Glenelg River Complex using U-Pb, Hf and O isotopes in zircon. 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K-feldspar contains fine grained inclusions of hematite, sillimanite and biotite (typically between 50 and 200 um) aligned in an early foliation that is overprinted by a later foliation defined by coarser grains of sillimanite and biotite (up to 1 mm) in the matrix.","SAMPLING_FEATURE_NAME":"RDD004","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH938954","BOREHOLE_TOP_DEPTH_M":316.6,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-34.647,"LONG_GDA94":137.8165,"ELEV_M_AHD":0,"ACCURACY_M":10,"LOCATION_METHOD":"published report, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Bockmann, M.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73644","AGE_REF":"Bockmann, M.J., Hand, M., Morrissey, L.J., Payne, J.L., Hasterok, D., Teale, G., Conor, C., 2022. Punctuated geochronology within a sustained high-temperature thermal regime in the southeastern Gawler Craton. 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Plagioclase (20%) >> K-feldspar (2%) = ferromagnesian crystals (1%) >> accessory Fe-Ti oxide (possibly magnetite), apatite and zircon in a fine-grained groundmass (66%) of poikilitic quartz grains enclosing tiny anhedral K-feldspar crystals. Circulation of a small volume of hydrothermal fluid at moderately low temperature produced an alteration assemblage of sericite + chlorite + hematite + opaques, and thin fractures sealed by chlorite + opaques, with sericite replacing plagioclase and ferromagnesians replaced by chlorite + leucoxene/rutile +/- hematite.","SAMPLING_FEATURE_NAME":"RED 2","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH938955","BOREHOLE_TOP_DEPTH_M":363.3,"BOREHOLE_BASE_DEPTH_M":369,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-30.5755456482,"LONG_GDA94":137.367646428,"ELEV_M_AHD":0,"ACCURACY_M":50,"LOCATION_METHOD":"published report, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jagodzinski, E.A.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75868","AGE_REF":"Jagodzinski, E.A., Reid, A.J., Crowley, J.L., Wade, C.E., 2023. Precise zircon U-Pb dating of the Mesoproterozoic Gawler large igneous province, South Australia. Results in Geochemistry, 10, article 100020, 16p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.ringeo.2022.100020","AGE_ENTRY_DATE":"2025-10-24","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14673","geometry":{"type":"Point","coordinates":[146.31777904,-30.34499169]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14673,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677797","IGSN":"10.60494/nsbe-d247","SAMPLENO":9677797,"SAMPLE_ID":"Doradilla G17","AGE_MA":419,"AGE_MA_UNCERTAINTY":6,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.13,"NUMBER_OF_ANALYSES":3,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"Macquarie University","AGE_INTERPRETED_FROM_SOURCE":"maximum depositional age of the sandstone","OTHER_AGE_INTERPRETED_FROM_SOURCE":"506 +/- 14 Ma (4 grains 95% confidence, MSWD 1.8, probability 0.14) and 599 +/- 6.1 Ma (6 grains, 95% confidence, MSWD 0.57, probability 0.72)- significance unknown","AGE_REMARK_FROM_SOURCE":"The youngest grouping of 3 grains at 419 +/- 6 Ma represents the maximum depositional age of the sandstone but not necessarily the adjacent calcsilicates.","AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Doradilla sandstone","UNIT_NAME_SOURCE":"Doradilla sandstone","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"medium-coarse grained siliciclastic rock","LITHOLOGY":"sandstone","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Glen et al 2013: In the Doradilla area the DMK line of skarns and calcsilicate rocks, flanked by serpentinites to the south, extends northeast for  13 km (Plimer 1984). 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","SAMPLING_FEATURE_NAME":"Doradilla G17","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS922800","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Thomson Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-30.3449916939,"LONG_GDA94":146.3177790385,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":"Shallow drainage gully about 100 m east of the Doradilla Copper Mine head frame at GR 434430 6642790 (Mt Oxley 1:100 000 sheet 8137)","SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Glen, R.A.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"68823; 69002","AGE_REF":"Glen, R.A., Korsch, R.J., Hegarty, R., Saeed, A., Djomani, Y.P., Costelloe, R.D., Belousova, E.A., 2013. Geodynamic significance of the boundary between the Thomson Orogen and the Lachlan Orogen, northwestern New South Wales and implications for Tasmanide tectonics. Australian Journal of Earth Sciences, 60(3), 371-412.; Glen, R.A., Saeed, A., Hegarty, R., Percival, I.G., Bodorkos, S., Griffin, W.L., 2010. Preliminary zircon data and tectonic framework for the Thomson Orogen, northwestern NSW. 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Y-intercept (initial 207Pb/206Pb) ~ 0.92 (visual estimate from Tera-Wasserburg plot).","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Delamerian granite","UNIT_NAME_SOURCE":"Delamerian granite KP004","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate intrusive rock","LITHOLOGY":"quartz diorite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"borehole specimen","SAMPLE_DESC":"Morgan (2019): Pale-coloured rock with dark tabular biotite and amphibole. The sample is dominated by plagioclase (visual estimation approximately 70%) with minor irregular quartz and irregular non-magnetic opaque mineral (pyrrhotite + chalcopyrite). Titanite and zircon are present as sub 60 micron and 30 micron grains homogeneously distributed throughout the sample.","SAMPLING_FEATURE_NAME":"KP","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH923482","BOREHOLE_TOP_DEPTH_M":154.1,"BOREHOLE_BASE_DEPTH_M":154.22,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-34.7209113227,"LONG_GDA94":139.2173483248,"ELEV_M_AHD":263,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Foden, J.D.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75786","AGE_REF":"Morgan, B., 2019, Crustal evolution and exploration potential of Delamerian south-eastern South Australia. B.Sc. Honours thesis, University of Adelaide, 111p.","AGE_PUBLICATION_LINKS":"https://hdl.handle.net/2440/137023","AGE_ENTRY_DATE":"2024-07-26","AGE_LAST_UPDATED":"2024-12-09"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14965","geometry":{"type":"Point","coordinates":[139.21734832,-34.72091132]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14965,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9678081","IGSN":"10.60494/zzw8-9436","SAMPLENO":9678081,"SAMPLE_ID":"KP008","AGE_MA":478.4,"AGE_MA_UNCERTAINTY":6.4,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":3.7,"NUMBER_OF_ANALYSES":48,"CALCULATION_TYPE":"lower concordia intercept","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"238U/206Pb and 207Pb/206Pb","MINERAL":"Titanite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: RESOlution 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7900","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"Groundmass titanite constraining magmatic crystallisation. 53 analyses in total; 3 rejected due to inclusions, 2 rejected due to insufficient signal. Y-intercept (initial 207Pb/206Pb) ~ 0.92 (visual estimate from Tera-Wasserburg plot).","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Delamerian granite","UNIT_NAME_SOURCE":"Delamerian granite KP008","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate intrusive rock","LITHOLOGY":"quartz diorite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"borehole specimen","SAMPLE_DESC":"Morgan (2019): This rock is dominated by plagioclase (visual estimation approximately 60%) which is less sericite-altered than in sample KP004. KP008 also contains muscovite and quartz with minor amphibole, biotite and titanite visible in thin section. Minor pyrrhotite + chalcopyrite infill veining. MLA imagery idenified a single monazite grain, multiple zircons, and large titanite grains which reach 2 mm.","SAMPLING_FEATURE_NAME":"KP","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH923482","BOREHOLE_TOP_DEPTH_M":224.4,"BOREHOLE_BASE_DEPTH_M":224.55,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-34.7209113227,"LONG_GDA94":139.2173483248,"ELEV_M_AHD":263,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Foden, J.D.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75786","AGE_REF":"Morgan, B., 2019, Crustal evolution and exploration potential of Delamerian south-eastern South Australia. B.Sc. Honours thesis, University of Adelaide, 111p.","AGE_PUBLICATION_LINKS":"https://hdl.handle.net/2440/137023","AGE_ENTRY_DATE":"2024-07-26","AGE_LAST_UPDATED":"2024-12-09"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14855","geometry":{"type":"Point","coordinates":[139.21734832,-34.72091132]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14855,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9678082","IGSN":"10.60494/9g79-2v63","SAMPLENO":9678082,"SAMPLE_ID":"KP001","AGE_MA":473,"AGE_MA_UNCERTAINTY":18,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":25,"NUMBER_OF_ANALYSES":17,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Monazite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: RESOlution 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7900","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"The data are widely dispersed, and may represent magmatic or metamorphic growth, or some combination of the two, so caution is advised in interpretation. It is also possible that this sample represents post-Delamerian magmatism, as compositional data suggest differences between this rock and other syn-Delamerian magmatic rocks.","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Delamerian granite","UNIT_NAME_SOURCE":"Delamerian granite KP001","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"borehole specimen","SAMPLE_DESC":"Morgan (2019): Crystalline grain-supported structure with abundant unaltered, irregular-shaped quartz grains. Biotite and muscovite (both sericite-altered) are present, with titanite as euhedral crystals and irregular rounded grains.","SAMPLING_FEATURE_NAME":"KP","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH923482","BOREHOLE_TOP_DEPTH_M":87.65,"BOREHOLE_BASE_DEPTH_M":87.76,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-34.7209113227,"LONG_GDA94":139.2173483248,"ELEV_M_AHD":263,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Foden, J.D.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75786","AGE_REF":"Morgan, B., 2019, Crustal evolution and exploration potential of Delamerian south-eastern South Australia. B.Sc. Honours thesis, University of Adelaide, 111p.","AGE_PUBLICATION_LINKS":"https://hdl.handle.net/2440/137023","AGE_ENTRY_DATE":"2024-07-12","AGE_LAST_UPDATED":"2024-12-09"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14889","geometry":{"type":"Point","coordinates":[139.76791251,-35.89488691]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14889,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9678098","IGSN":"10.60494/9d7z-5d90","SAMPLENO":9678098,"SAMPLE_ID":"CB20WH01","AGE_MA":477.9,"AGE_MA_UNCERTAINTY":2.5,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"model age","GEOLOGICAL_EVENT":"mineralisation","ISOTOPIC_SYSTEM":"Re/Os","ISOTOPIC_RATIO":"187Re/187Os and 187Os/188Os","MINERAL":"Molybdenite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"isotope dilution: solvent extraction (Os and Re) and anion chromatography (Re)","ANALYTICAL_COLLECTION_SYSTEM":"N-TIMS: Thermo Scientific Triton","LABORATORY_NAME":"Durham Geochemistry Centre, Durham University","AGE_INTERPRETED_FROM_SOURCE":"mineralisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Colebatch granite","UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Hong et al. (2023): Equigranular granite at Colebatch prospect, cut by coarse-grained molybdenite vein (0.5-1 cm wide). Other_ID is the Geological Survey of South Australia sample number, searchable in SARIG.","SAMPLING_FEATURE_NAME":"CB20WH01","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS923489","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-35.8948869149,"LONG_GDA94":139.7679125138,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":"Colebatch prospect","SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Geological Survey of South Australia","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75783","AGE_REF":"Hong, W., Fabris, A., Wise, T., Collins, A.S., Gilbert, S., Selby, D., Curtis, S., Reid, A.J., 2023. Metallogenic setting and temporal evolution of porphyry Cu-Mo mineralization and alteration in the Delamerian Orogen, South Australia: Insights from zircon U-Pb, molybdenite Re-Os, and in situ white mica Rb-Sr geochronology. Economic Geology, 118(6), 1291-1318.","AGE_PUBLICATION_LINKS":"https://doi.org/10.5382/econgeo.5012","AGE_ENTRY_DATE":"2024-07-12","AGE_LAST_UPDATED":"2024-09-27"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14849","geometry":{"type":"Point","coordinates":[141.43430864,-37.4379381]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14849,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9678099","IGSN":"10.60494/60sk-yh34","SAMPLENO":9678099,"SAMPLE_ID":"GC3 G603","AGE_MA":501,"AGE_MA_UNCERTAINTY":2,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":1.2,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"Magmatic crystallisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Samples of Ireland et al. (2002) reanalysed with newer standards. Turner et al. (2022) quoted an age of 501 +/- 2 Ma (MSWD = 1.2), but it is not clear how the age was obtained from the 25 analyses collected. The absence of a concordia ellipse on their Fig. 9 suggests this is a weighted mean 206Pb/238U date.","AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":29549,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU29549","STRAT_UNIT_NAME":"Wando Tonalite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Wando I-type Tonalite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"tonalite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Ireland et al. (2002), Turner et al. (2022): Sampled at Boundary Creek, Wando Vale area. Strongly foliated biotite-hornblende tonalite with fabric correlated to S2 of adjacent schist. Medium-grained with foliation defined by biotite and lesser hornblende and epidote, and by flattened quartz grains and moderately aligned plagioclase. Accessory, magnetite, titanite and allanite. Microgranitoid enclaves are common, containing biotite and hornblende, and displaying the gneissic foliation. This tonalite truncates both bedding and S1, it was emplaced between D1 and D2. Metamorphism peaked at D2 in this area (Gray et al., 2002).","SAMPLING_FEATURE_NAME":"GC3 G603","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS923490","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"VIC","COUNTRY":"AUS","LAT_GDA94":-37.4379381035,"LONG_GDA94":141.4343086417,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":"Boundary Creek, Wando Vale area.","SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Gibson, G.M.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75785","AGE_REF":"Turner, S., Ireland, T., Foden, J., Belousova, E., Worner, G., Keeman, J., 2022. A comparison of granite genesis in the Adelaide Fold Belt and Glenelg River Complex using U-Pb, Hf and O isotopes in zircon. Journal of Petrology, 63(11), egac102.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1093/petrology/egac102","AGE_ENTRY_DATE":"2024-07-12","AGE_LAST_UPDATED":"2024-09-27"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15191","geometry":{"type":"Point","coordinates":[135.11767479,-29.30349391]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15191,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034232","IGSN":"10.60494/zyxz-c180","SAMPLENO":11034232,"SAMPLE_ID":"R2013956","AGE_MA":1466,"AGE_MA_UNCERTAINTY":5,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":0.85,"NUMBER_OF_ANALYSES":10,"CALCULATION_TYPE":"lower concordia intercept","GEOLOGICAL_EVENT":"cooling","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Apatite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7700","LABORATORY_NAME":"University of Melbourne","AGE_INTERPRETED_FROM_SOURCE":"cooling age of apatite","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"This age is the timing of cooling of the apatite mineral through its closure temperature, rather than an age of crystallisation.","AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":26613,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU26613","STRAT_UNIT_NAME":"Hiltaba Suite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"magnetite-apatite-amphibole skarn, Hiltaba Suite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metasomatic rock","LITHOLOGY":"skarn","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Jagodzinski & reid 2015: Sample 2013956 is composed of coarse grained magnetite intergrown with orthopyroxene, apatite and quartz with zones rich in red coloured apatite, pyrite and minor chalcopyrite. Minor biotite is also found within this zone. This sample was taken in an attempt to constrain the timing of mineralisation via dating apatite.","SAMPLING_FEATURE_NAME":"CHDCU02","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH571016","BOREHOLE_TOP_DEPTH_M":283.35,"BOREHOLE_BASE_DEPTH_M":283.55,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-29.3034939121,"LONG_GDA94":135.1176747926,"ELEV_M_AHD":142,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2013-05-27","SAMPLE_ORIGINATOR":"Reid, A.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"71359","AGE_REF":"Reid, A., Jagodzinski, E.A., Hill, P., Maas, R., Jourdan, F., 2017. Project PGC03-12: Geochronology of the Cairn Hill deposit. IN Jagodzinski, E.A. and Reid, A.J. (eds) PACE Geochronology: Results of collaborative geochronology projects 2013-15. Geological Survey of South Australia. Report Book, 2015/00003, 168-194.","AGE_PUBLICATION_LINKS":"https://pid.sarig.sa.gov.au/document/d20011024","AGE_ENTRY_DATE":"2025-10-29","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14659","geometry":{"type":"Point","coordinates":[148.821623,-33.328738]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14659,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677798","IGSN":"10.60494/eaw1-1p26","SAMPLENO":9677798,"SAMPLE_ID":"CARGO1","AGE_MA":463.4,"AGE_MA_UNCERTAINTY":3.4,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.39,"NUMBER_OF_ANALYSES":38,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"Macquarie University","AGE_INTERPRETED_FROM_SOURCE":"mean magmatic age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Age is weighted mean of grains > 455 Ma and < 501 Ma","AGE_SOURCE":"MinView/Original publications","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Cargo Volcanics","UNIT_NAME_SOURCE":"Cargo Volcanics","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous volcanic rock","LITHOLOGY":"volcaniclastic rock","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Glen et al 2011: Cargo Volcanics show granitoid sources","SAMPLING_FEATURE_NAME":"CARGO1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS922801","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-33.328738,"LONG_GDA94":148.821623,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":"Molong 1:100,000 map sheet 8631 GDA 1671196 6309918. Paling Yards Creek","SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Saeed, A.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"67106; 75256","AGE_REF":"Glen, R.A., Saeed, A., Quinn, C.D., Griffin, W.L., 2011. U-Pb and Hf isotope data from zircons in the Macquarie Arc, Lachlan Orogen: Implications for arc evolution and Ordovician palaeogeography along part of the east Gondwana margin. Gondwana Research, 19(3), 670-685.; Glen, R.A., Fitzsimons, I.C.W., Griffin, W.L., Saeed, A., 2017. East Antarctic sources of extensive Lower-Middle Ordovician turbidites in the Lachlan Orogen, southern Tasmanides, eastern Australia. Australian Journal of Earth Sciences, 64(2), 143-224.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.gr.2010.11.011; https://doi.org/10.1080/08120099.2017.1273256","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14677","geometry":{"type":"Point","coordinates":[148.9119511,-32.80502869]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14677,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677799","IGSN":"10.60494/pxy8-tv74","SAMPLENO":9677799,"SAMPLE_ID":"mit","AGE_MA":494,"AGE_MA_UNCERTAINTY":null,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"probability frequency maximum","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"Macquarie University","AGE_INTERPRETED_FROM_SOURCE":"youngest population - peak at 494 Ma","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"The 490-625 Ma population can be subdivided into two subgroups: a younger one from ~490 to ~540 Ma (peak at 494 Ma) and an older one from 550 to 625 Ma (peaks at 560 and 598 Ma).","AGE_SOURCE":"MinView/Original publications","PROJECT":null,"STRATNO":33382,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU33382","STRAT_UNIT_NAME":"Mitchell Formation","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Mitchell Formation","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous volcanic rock","LITHOLOGY":"volcaniclastic sandstone","MODE_OF_OCCURRENCE":"bed","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Glen et al 2011 paraphrased: \"Part of a graded volcaniclastic sandstone bed dominated by grains of andesite, feldspar and altered ferromagnesian minerals. Zircons from the Mitchell Formation vary in size from 50 um to 200 um, in shape from euhedral to rounded, and in colour from orange to light yellow or pink, to milky to clear white.\"","SAMPLING_FEATURE_NAME":"mit","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS922802","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.80502869,"LONG_GDA94":148.9119511,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":"Wellington 1:100,000 map sheet 8632 GDA 54H 678899 6368525","SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Saeed, A.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"67106; 75256","AGE_REF":"Glen, R.A., Saeed, A., Quinn, C.D., Griffin, W.L., 2011. U-Pb and Hf isotope data from zircons in the Macquarie Arc, Lachlan Orogen: Implications for arc evolution and Ordovician palaeogeography along part of the east Gondwana margin. Gondwana Research, 19(3), 670-685.; Glen, R.A., Fitzsimons, I.C.W., Griffin, W.L., Saeed, A., 2017. East Antarctic sources of extensive Lower-Middle Ordovician turbidites in the Lachlan Orogen, southern Tasmanides, eastern Australia. Australian Journal of Earth Sciences, 64(2), 143-224.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.gr.2010.11.011; https://doi.org/10.1080/08120099.2017.1273256","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14864","geometry":{"type":"Point","coordinates":[139.4598792,-33.1994265]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14864,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9678062","IGSN":"10.60494/zh5b-kv53","SAMPLENO":9678062,"SAMPLE_ID":"BD20WH040","AGE_MA":488.8,"AGE_MA_UNCERTAINTY":2,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.14,"NUMBER_OF_ANALYSES":13,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: RESOlution 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7900","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"magmatic emplacement","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"13/30 analyses used","AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"Bendigo","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"borehole specimen","SAMPLE_DESC":"Hong et al. 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Other_ID is the Geological Survey of South Australia sample number, searchable in SARIG.","SAMPLING_FEATURE_NAME":"BD 5","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH920058","BOREHOLE_TOP_DEPTH_M":112.15,"BOREHOLE_BASE_DEPTH_M":112.45,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-33.1870785,"LONG_GDA94":139.4656802,"ELEV_M_AHD":228,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Geological Survey of South Australia","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75783","AGE_REF":"Hong, W., Fabris, A., Wise, T., Collins, A.S., Gilbert, S., Selby, D., Curtis, S., Reid, A.J., 2023. 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(2023): White mica from reddish biotite granite with intense white mica-pyrite-quartz alteration. Other_ID is the Geological Survey of South Australia sample number, searchable in SARIG.","SAMPLING_FEATURE_NAME":"BD 5","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH920058","BOREHOLE_TOP_DEPTH_M":112.15,"BOREHOLE_BASE_DEPTH_M":112.45,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-33.1870785,"LONG_GDA94":139.4656802,"ELEV_M_AHD":228,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Geological Survey of South Australia","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75783","AGE_REF":"Hong, W., Fabris, A., Wise, T., Collins, A.S., Gilbert, S., Selby, D., Curtis, S., Reid, A.J., 2023. 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(2020) does not specify a location for this sample.","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"University of Adelaide","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73610","AGE_REF":"Foden, J., Elburg, M.A., Dougherty-Page, J., Burtt, A., 2006. The timing and duration of the Delamerian Orogeny: Correlation with the Ross Orogen and implications for Gondwana assembly. 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Thus, the maximum depositional age is likely between c. 2520-2500 Ma.","AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":24842,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU24842","STRAT_UNIT_NAME":"Christie Gneiss","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Christie Gneiss","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"foliated metamorphic rock","LITHOLOGY":"gneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Brown et al 2022: Sample 3813679 is a weakly foliated metapelitic gneiss comprising quartz, cordierite, biotite, Kfeldspar, garnet, muscovite, and minor sillimanite. The sample also contains trace sulphide, rutile, and monazite. Parallel to the foliation are potentially leucosomic mm-scale veins dominated by quartz, K-feldspar, cordierite, and sericite. Leucosomic quartz is finegrained and anhedral. In the matrix, quartz is typically preserved as subhedral porphyroblasts or myrmekite. Plagioclase is rare in the sample. Medium-grained garnet is typically blocky and fragmented, and pervasively replaced by fine-grained symplectic intergrowths of altered biotite and quartz. Comparatively coarse-grained anhedral biotite wraps medium- to coarse-grained garnet, cordierite, and quartz porphyroblasts. Subhedral cordierite porphyroblasts show polysynthetic twinning and can be slightly altered to sericite, not unlike K-feldspar. Sillimanite is rare in the sample and forms medium-grained tabular to elongated porphyroblasts, which are overprinted by fine-grained muscovite. Sillimanite is localised in quartzitic domains, particularly where myrmekitic quartz occurs. Sulphide is often associated with biotite and sometimes present as randomly distributed thin vein structures. Mineral proportions: quartz (~30 vol%), cordierite (~15 vol%), biotite (~15 vol%), K-feldspar (~15 vol%), garnet (~10 vol%), plagioclase (~5 vol%), muscovite (~5 vol%), sillimanite (~3 vol%), minor phases (<2 vol%).","SAMPLING_FEATURE_NAME":"AFM MUL 14","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH880905","BOREHOLE_TOP_DEPTH_M":111.76,"BOREHOLE_BASE_DEPTH_M":113,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-30.1701523,"LONG_GDA94":133.7249462,"ELEV_M_AHD":207,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2021-08-02","SAMPLE_ORIGINATOR":"Reid, A.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"74363","AGE_REF":"Brown, D., Pawley, M., Williams, M., Reid, A., Jagodzinski, E., 2022. Zircon LA-ICP-MS geochronological and geochemical results from the central-western Gawler Craton. Geological Survey of South Australia. Report Book, 2022/00008, 139p.","AGE_PUBLICATION_LINKS":"https://pid.sarig.sa.gov.au/document/2022d112405","AGE_ENTRY_DATE":"2025-10-29","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15278","geometry":{"type":"Point","coordinates":[133.7249462,-30.1701523]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15278,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034220","IGSN":"10.60494/k1we-1r46","SAMPLENO":11034220,"SAMPLE_ID":"3813679","AGE_MA":2449,"AGE_MA_UNCERTAINTY":8,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":1,"NUMBER_OF_ANALYSES":16,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"metamorphism","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"GS21101-18, mount 1","ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: RESOlution 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 8900 series","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"metamorphic population","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":24842,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU24842","STRAT_UNIT_NAME":"Christie Gneiss","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Christie Gneiss","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"foliated metamorphic rock","LITHOLOGY":"gneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Brown et al 2022: Sample 3813679 is a weakly foliated metapelitic gneiss comprising quartz, cordierite, biotite, Kfeldspar, garnet, muscovite, and minor sillimanite. The sample also contains trace sulphide, rutile, and monazite. Parallel to the foliation are potentially leucosomic mm-scale veins dominated by quartz, K-feldspar, cordierite, and sericite. Leucosomic quartz is finegrained and anhedral. In the matrix, quartz is typically preserved as subhedral porphyroblasts or myrmekite. Plagioclase is rare in the sample. Medium-grained garnet is typically blocky and fragmented, and pervasively replaced by fine-grained symplectic intergrowths of altered biotite and quartz. Comparatively coarse-grained anhedral biotite wraps medium- to coarse-grained garnet, cordierite, and quartz porphyroblasts. Subhedral cordierite porphyroblasts show polysynthetic twinning and can be slightly altered to sericite, not unlike K-feldspar. Sillimanite is rare in the sample and forms medium-grained tabular to elongated porphyroblasts, which are overprinted by fine-grained muscovite. Sillimanite is localised in quartzitic domains, particularly where myrmekitic quartz occurs. Sulphide is often associated with biotite and sometimes present as randomly distributed thin vein structures. Mineral proportions: quartz (~30 vol%), cordierite (~15 vol%), biotite (~15 vol%), K-feldspar (~15 vol%), garnet (~10 vol%), plagioclase (~5 vol%), muscovite (~5 vol%), sillimanite (~3 vol%), minor phases (<2 vol%).","SAMPLING_FEATURE_NAME":"AFM MUL 14","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH880905","BOREHOLE_TOP_DEPTH_M":111.76,"BOREHOLE_BASE_DEPTH_M":113,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-30.1701523,"LONG_GDA94":133.7249462,"ELEV_M_AHD":207,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2021-08-02","SAMPLE_ORIGINATOR":"Reid, A.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"74363","AGE_REF":"Brown, D., Pawley, M., Williams, M., Reid, A., Jagodzinski, E., 2022. Zircon LA-ICP-MS geochronological and geochemical results from the central-western Gawler Craton. Geological Survey of South Australia. Report Book, 2022/00008, 139p.","AGE_PUBLICATION_LINKS":"https://pid.sarig.sa.gov.au/document/2022d112405","AGE_ENTRY_DATE":"2025-10-29","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15165","geometry":{"type":"Point","coordinates":[134.451888,-31.1019223]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15165,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034233","IGSN":"10.60494/kmfe-pw78","SAMPLENO":11034233,"SAMPLE_ID":"3762243","AGE_MA":1607,"AGE_MA_UNCERTAINTY":16,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":1.6,"NUMBER_OF_ANALYSES":45,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"GS21101-14, mount 2","ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: RESOlution 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 8900 series","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":24502,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU24502","STRAT_UNIT_NAME":"St Peter Suite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"St Peter Suite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granodiorite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Brown et al 2022: Sample 3762243 is a medium- to coarse-grained granodiorite with a mineral assemblage dominated by plagioclase and biotite. Quartz and K-feldspar are present in comparatively minor abundance. Quartz and K-feldspar are present in comparatively minor abundance. Chlorite, titanite, muscovite, hematite, and goethite are rare in the sample. The sample preserves a massive texture with equigranular and hypidiomorphic phenocrysts. Coarse-grained plagioclase phenocrysts preserve albite twinning and are typically subhedral with slight rounding at the grain margins. Minor sericitic alteration is apparent within a large proportion of the plagioclase phenocrysts. Medium-grained biotite is subhedral and localised interstitially around plagioclase, quartz, and K-feldspar phenocrysts. Texturally altered biotite is rare, as is the occurrence of fine-grained chlorite after biotite. Minor fine-grained anhedral titanite and hematite are associated with biotite and appear to be texturally late. K-feldspar is not twinned and phenocrysts are texturally similar to plagioclase phenocrysts, although lower in abundance. Sericitic alteration is also relatively common. Fine- to medium-grained subhedral quartz phenocrysts are distributed interstitially among the comparatively coarse-grained plagioclase and K-feldspar phenocrysts. Mineral proportions: plagioclase (~55 vol%), biotite (~20 vol%), K-feldspar (~10 vol%), quartz (~10 vol%), minor phases (~5 vol%). ","SAMPLING_FEATURE_NAME":"CHL 19","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH880644","BOREHOLE_TOP_DEPTH_M":48.05,"BOREHOLE_BASE_DEPTH_M":49.2,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-31.1019223,"LONG_GDA94":134.451888,"ELEV_M_AHD":123,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2021-05-10","SAMPLE_ORIGINATOR":"Reid, A.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"74363","AGE_REF":"Brown, D., Pawley, M., Williams, M., Reid, A., Jagodzinski, E., 2022. Zircon LA-ICP-MS geochronological and geochemical results from the central-western Gawler Craton. Geological Survey of South Australia. Report Book, 2022/00008, 139p.","AGE_PUBLICATION_LINKS":"https://pid.sarig.sa.gov.au/document/2022d112405","AGE_ENTRY_DATE":"2025-10-29","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15285","geometry":{"type":"Point","coordinates":[131.8546914,-31.3527713]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15285,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034234","IGSN":"10.60494/b0by-y002","SAMPLENO":11034234,"SAMPLE_ID":"R2017952","AGE_MA":1533,"AGE_MA_UNCERTAINTY":41,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.03,"NUMBER_OF_ANALYSES":33,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"cooling","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Apatite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"cooling through 550-350* C","OTHER_AGE_INTERPRETED_FROM_SOURCE":"Concordia intercept: 1526 +/- 80 Ma (MSWD 1.3)","AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":35382,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU35382","STRAT_UNIT_NAME":"Tunkillia Suite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"gabbro, Fowler Domain","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"basic intrusive rock","LITHOLOGY":"gabbro","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"GSSA drillhole database: Metagabbro, minor mt, py, qtz, ap; weakly foliated. K-feldspar, biotite, feldspar, hornblende, quartz sericite. Sericitised plagioclase showing tartan twinning. Mosaic quartz, hornblende and feldspar. Pleochroic biotite. Trace opaques.","SAMPLING_FEATURE_NAME":"COL 43D","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH889318","BOREHOLE_TOP_DEPTH_M":53.6,"BOREHOLE_BASE_DEPTH_M":54,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-31.3527713,"LONG_GDA94":131.8546914,"ELEV_M_AHD":65,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2013-09-24","SAMPLE_ORIGINATOR":"Reid, A.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73434","AGE_REF":"Hall, J.W., Glorie, S., Reid, A.J., Boone, S.C., Collins, A.S., Gleadow, A., 2018. An apatite U-Pb thermal history map for the northern Gawler Craton, South Australia. Geoscience Frontiers, 9(5), 1293-1308.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.gsf.2017.12.010","AGE_ENTRY_DATE":"2025-10-29","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15634","geometry":{"type":"Point","coordinates":[131.8546914,-31.3527713]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15634,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034234","IGSN":"10.60494/b0by-y002","SAMPLENO":11034234,"SAMPLE_ID":"R2017952","AGE_MA":1739,"AGE_MA_UNCERTAINTY":6,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":0.84,"NUMBER_OF_ANALYSES":21,"CALCULATION_TYPE":"upper concordia intercept","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"AR-43","ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":"weighted mean igneous cryst. Age = 1747 +/- 10 Ma (MSWD = 0.33, n = 21).","AGE_REMARK_FROM_SOURCE":"This upper intercept age is the preferred age for phase 1 zircon growth (cores) and therefore the magmatic emplacement of the diorite. The corresponding lower intercept = -243 +/- 160 Ma (MSWD = 0.84, probability of fit = 0.65).","AGE_SOURCE":"GSSA/Original publication","PROJECT":null,"STRATNO":35382,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU35382","STRAT_UNIT_NAME":"Tunkillia Suite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Tunkillia Suite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"basic intrusive rock","LITHOLOGY":"gabbro","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"GSSA drillhole database: Metagabbro, minor mt, py, qtz, ap; weakly foliated. K-feldspar, biotite, feldspar, hornblende, quartz sericite. Sericitised plagioclase showing tartan twinning. Mosaic quartz, hornblende and feldspar. Pleochroic biotite. Trace opaques.","SAMPLING_FEATURE_NAME":"COL 43D","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH889318","BOREHOLE_TOP_DEPTH_M":53.6,"BOREHOLE_BASE_DEPTH_M":54,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-31.3527713,"LONG_GDA94":131.8546914,"ELEV_M_AHD":65,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2013-09-24","SAMPLE_ORIGINATOR":"Reid, A.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"71318","AGE_REF":"Reid, A., 2015. Zircon U-Pb geochronology from selected Paleoproterozoic igneous rocks of the Gawler Craton by laser ablation-inductively coupled plasma mass spectrometry. Geological Survey of South Australia. Report Book, 2015/00025, 62p.","AGE_PUBLICATION_LINKS":"https://pid.sarig.sa.gov.au/document/d20011044","AGE_ENTRY_DATE":"2025-11-18","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14794","geometry":{"type":"Point","coordinates":[136.994218,-36.0191]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14794,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9678105","IGSN":"10.60494/b88f-rc47","SAMPLENO":9678105,"SAMPLE_ID":"R156379","AGE_MA":503,"AGE_MA_UNCERTAINTY":6,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"Magmatic crystallisation age.","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Listed as both 503 +/- 6 Ma and 505 +/- 7 Ma in unpublished GSSA databases. Foden et al. (2002) and Foden et al. (2006, Table 3) both quoted this date as 503 +/- 4 Ma.","AGE_SOURCE":"Unpublished GSSA compilation","PROJECT":null,"STRATNO":29851,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU29851","STRAT_UNIT_NAME":"Stun Sail Boom Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Stun Sail Boom Granite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"SARIG (apparently referring to a single rock, and two versions of the same U-Pb age?): Granite, deformed, medium-grained, porphyritic, quartz-plagioclase-biotite, opalescent blue quartz phenocrysts and large feldspar megacrysts. Syn-tectonic. Age: 505 +/- 7 Ma (U-Pb). Medium-grained, recrystallised, plagioclase-quartz-K-feldspar-biotite-muscovite-chlorite-sericite-epidote-titanite-zircon-monazite-apatite-opaques granite gneiss to granite. ?Upper greenschist facies metamorphism. Age 503 +/- 6 Ma (U-Pb). Foden et al. (2002): At Vivonne Bay and Stun Sail Boom River, the Kanmantoo Group is intruded by a K-feldspar megacrystic biotite granite (represented by R156379) of transitional I- to S-type composition. This granite has limited on-land exposure and crops out at a series of headlands between Vivonne Bay and Remarkable Rocks 30 km to the W. At the Vivonne Bay–Stun Sail Boom River localities, the host Kanmantoo Group rocks are metamorphosed to upper amphibolite facies and are partially melted to produce a locally mobilised diatexitic biotite granodiorite. This granodiorite is fairly biotite rich and is host to numerous enclaves of unmelted Kanmantoo Group metasedimentary rocks. These enclaves are clearly of lithologies that were less favourable for melt production at the prevailing temperatures and comprise both quartz-rich lithologies and also very biotite-rich melanosome fragments. These latter are the same composition as some in situ melanosome layers bordering the biotite granodiorite and are composed of biotite, plagioclase (An34-12), minor quartz and abundant accessory apatite, zircon and monazite. The locally produced biotite granodiorite melt was obviously contemporaneous with the megacrystic granite intrusion, as there are good examples of mingling of fingers of the porphyritic granite with the grey biotite granodiorite. The biotite granodiorite has a moderately developed foliation, which defines dips of 30-50 degrees to the N. Development of the migmatite complex and emplacement of the megacrystic granite (503 +/- 4 Ma, referable to sample R156379) are regarded as syn-Delamerian orogenic events. In addition to the megacrystic granite and the biotite granodiorite, these outcrops also expose bodies of highly leucocratic granite. These biotite-free rocks are composed of quartz, K-rich microcline and muscovite and contain numerous patches of almandine-rich garnet granite. These garnet leucogranites locally mingle with the biotite granodiorite and are taken to represent extracted and fractionated near minimum-temperature melts. The occurrence of muscovite as a solidus phase in these liquids constrains their pressure to be above 3 kbar (e.g. Dymoke & Sandiford 1992). [NOTE: Foden et al. (2002) attributed a U-Pb SHRIMP zircon date of 504 +/- 8 Ma for the garnet-bearing leucogranite to Fanning (1990), but Fanning (1990) presented no such data, nor is there any listing of a correlatable sample or result in published or unpublished GSSA databases.]","SAMPLING_FEATURE_NAME":"R156379","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS923496","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-36.0191,"LONG_GDA94":136.994218,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":"Stun Sail Boom River.","SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Geological Survey of South Australia","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Burtt, A.C., Fanning, C.M., unpublished.","AGE_PUBLICATION_LINKS":null,"AGE_ENTRY_DATE":"2024-07-12","AGE_LAST_UPDATED":"2024-09-27"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15222","geometry":{"type":"Point","coordinates":[131.4652864,-29.6151034]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15222,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034251","IGSN":"10.60494/py4x-2t79","SAMPLENO":11034251,"SAMPLE_ID":"2115319","AGE_MA":1726,"AGE_MA_UNCERTAINTY":8,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.55,"NUMBER_OF_ANALYSES":27,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"metamorphism","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Monazite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"University of Tasmania","AGE_INTERPRETED_FROM_SOURCE":"metamorphic age phase 1","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":34325,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU34325","STRAT_UNIT_NAME":"Moondrah Gneiss","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Moondrah Gneiss","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metamorphic rock","LITHOLOGY":"metamorphic rock","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Reid et al 2019: This sample is a garnet, (former) cordierite, sillimanite metapelite from drill hole Lake Maurice East 1 in the Nawa Domain. All basement rock intercepted at the base of the Lake Maurice East 1 hole is altered, however, the peak metamorphic mineralogy and texture can be ascertained in sample 2115319. The primary mineral assemblage comprises garnet, former cordierite (now sericitised), sillimanite (partly sericitised), biotite, perthitic K-feldspar (partly sericitised), plagioclase (partly sericitised), quartz, magnetite and minor hemo-ilmenite. Accessory phases include monazite and zircon. A strong foliation is defined by sillimanite + garnet-magnetite +/- biotite-rich layers and quartz ribbons. At the thin-section scale, in high-strain zones, asymmetric tails on cordierite and feldspar grains define a shear fabric. Xenoblastic garnet porphyroblasts typically occur as aggregates (<15mm across), rich in both coarse and fine magnetite inclusions and minor biotite and quartz. Sericitised cordierite is characterised by pleochroic halos formed around zircon and monazite inclusions. Fine-grained biotite and quartz symplectites occur, in part replacing garnet at grain margins but also in the matrix. Monazite geochronology and phase equilibria modelling were conducted on this sample. ","SAMPLING_FEATURE_NAME":"Lake Maurice East 1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH12835","BOREHOLE_TOP_DEPTH_M":738.5,"BOREHOLE_BASE_DEPTH_M":739,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-29.6151034,"LONG_GDA94":131.4652864,"ELEV_M_AHD":218,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2015-02-11","SAMPLE_ORIGINATOR":"Reid, A.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73649","AGE_REF":"Reid, A.J., Halpin, J.A., Dutch, R.A., 2019. Timing and style of high-temperature metamorphism across the Western Gawler Craton during the Paleo- to Mesoproterozoic. Australian Journal of Earth Sciences, 66(8), 1085-1111.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099.2019.1602565","AGE_ENTRY_DATE":"2025-10-29","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15096","geometry":{"type":"Point","coordinates":[148.94666226,-20.99568838]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15096,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU7994520","IGSN":"10.60494/vbw6-5219","SAMPLENO":7994520,"SAMPLE_ID":"JSCA006","AGE_MA":33.86,"AGE_MA_UNCERTAINTY":0.29,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.82,"NUMBER_OF_ANALYSES":21,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":"GA6498","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Geoscience Australia","AGE_INTERPRETED_FROM_SOURCE":"Magmatic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":9059,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU9059","STRAT_UNIT_NAME":"Jukes Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Jukes Granite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"syenogranite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"The Mount Jukes Intrusive Complex is a bimodal suite of Cenozoic intrusions that crop out ca 30 km northwest of Mackay in central Queensland. Along with the broadly coeval Cape Hillsborough Beds which crop out ca 15 km to the northeast, these are the earliest exposed products of the Cosgrove Hotspot Track (Davies et al., 2015). It is unclear whether the intrusive complex represents: 1) unerupted components of the Cape Hillsborough Central Volcano which is also represented by the Cape Hillsborough Beds to the northeast, 2) a second contemporaneous central volcano, or 3) deeper levels of the main Central Volcano with rocks at Cape Hillsborough representing satellite vent products (e.g. Cohen, 2007). The Jukes Granite is a prominent component of the complex and forms a circular, 1.5 km wide, steeply sided dome rising to a height of 544 m above sea level with numerous sheeted (exfoliation) joints. The coeval Neilson Leucogabbro forms an outer circle to the Jukes Granite but outcrops poorly. The Jukes Granite is primarily composed of a cream-coloured, medium grained, biotite-syenogranite (Spence, 2023). Weathering across the granite is enhanced by extensive jointing and the high-rainfall climate, with the base of the dome being the most strongly weathered. The Jukes Granite has previously yielded a K-Ar date of 32.5 +/- 0.4 Ma (biotite and K-feldspar; McDougall and Slessar, 1972) and a 40Ar/39Ar date of 33.6 +/- 0.5 Ma (Davies et al., 2015). Located 3 km south-south-west of the Jukes Granite, the broadly coeval Blackwood Quartz Syenite yielded a U-Pb zircon date of 34.34 +/- 0.70 Ma (Siegel et al., 2020). Combined, these dates suggest a Paleogene age (35-32 Ma, spanning the latest Eocene to earliest Oligocene) for the Jukes Granite. The sample selected was intended to provide the first U-Pb SHRIMP zircon age for the Jukes Granite. The Jukes Granite is surrounded by dense rainforest, and the sample was collected from the western side at the base of the main body. The sample is a biotite-syenogranite composed of alkali feldspar (65%), quartz (30%), biotite (5%) with accessory (<1%) monazite and zircon. The sample shows a phaneritic and equigranular texture with the local development of granophyric textures. The sample is moderately weathered and is partly intruded by quartz stockworks.","SAMPLING_FEATURE_NAME":"JSCA006","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS866727","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-20.9956883811,"LONG_GDA94":148.9466622596,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Geological Survey of Queensland (GSQ)","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75851","AGE_REF":"Kositcin, N., Purdy, D.J., Beattie, E., Spence, J., von Gnielinski, F.E., Simpson, B.P., Platt, S., 2024. Summary of results. Joint GSQ-GA Geochronology Project: Peralkaline Magmatic Systems and Northeast Queensland Deposits projects, 2023-2024. Geoscience Australia. Record, 2024/53, 93p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.26186/149782","AGE_ENTRY_DATE":"2024-10-30","AGE_LAST_UPDATED":"2024-10-30"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.6848","geometry":{"type":"Point","coordinates":[116.453467,-25.438413]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":6848,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1578975","IGSN":"10273/AU1578975","SAMPLENO":1578975,"SAMPLE_ID":"142929","AGE_MA":1945,"AGE_MA_UNCERTAINTY":14,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"not captured","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"U/Pb not captured","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"age of igneous crystallization","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSWA","PROJECT":null,"STRATNO":32581,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU32581","STRAT_UNIT_NAME":"Nardoo Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"trondhjemite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"biotite trondhjemite dyke","SAMPLING_FEATURE_NAME":"142929","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS130582","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Yilgarn Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-25.438413,"LONG_GDA94":116.453467,"ELEV_M_AHD":382,"ACCURACY_M":50,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":"Nardoo Bore","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Nelson, D.R.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Geological Survey of Western Australia geochronology dataset","AGE_PUBLICATION_LINKS":"http://geodownloads.dmp.wa.gov.au/downloads/Geochron/pdfs/142929.1.pdf","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2021-01-14"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15645","geometry":{"type":"Point","coordinates":[137.69269769,-33.97166224]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15645,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11083815","IGSN":"10.60494/82rw-9x90","SAMPLENO":11083815,"SAMPLE_ID":"R142488","AGE_MA":1748,"AGE_MA_UNCERTAINTY":15,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.5,"NUMBER_OF_ANALYSES":22,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"Z1568, Z2064","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation, extrusive","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"DATA REPROCESSED: Conner (1995) originally reported SHRIMP age of 1749 +/- 9 Ma (sampleID 6430RS/351) however, this age data has been recalculated for Fanning et al. (2007) publication, which supersedes this previous age.","AGE_SOURCE":"GSSA/Original publication","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Moonta Porphyry Member, Weetulta Formation:","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":null,"LITHOLOGY":null,"MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"Devon Mine DD1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH648308","BOREHOLE_TOP_DEPTH_M":89.7,"BOREHOLE_BASE_DEPTH_M":90.37,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-33.9716622387,"LONG_GDA94":137.6926976945,"ELEV_M_AHD":41,"ACCURACY_M":0,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Geological Survey of South Australia","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"65376; 74366","AGE_REF":"Conor, C.H.H., 1995. Moonta-Wallaroo region - South Australian Exploration Initiative. Prospectivity re-assessment and GIS data package (compiled 1994-1995). South Australia. Department of Mines and Energy. Open File Envelope, 8886, 551p.; Fanning, C.M., Reid, A.J., Teale, G.S., 2007. A geochronological framework for the Gawler Craton, South Australia. Geological Survey of South Australia Bulletin, 55, 258p.","AGE_PUBLICATION_LINKS":"https://pid.sarig.sa.gov.au/document/2018d037833; https://pid.sarig.sa.gov.au/document/mesac14099","AGE_ENTRY_DATE":"2025-11-18","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14820","geometry":{"type":"Point","coordinates":[139.4656802,-33.1870785]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14820,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9678067","IGSN":"10.60494/z5xb-zn43","SAMPLENO":9678067,"SAMPLE_ID":"BD21WH031","AGE_MA":478.3,"AGE_MA_UNCERTAINTY":18.1,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.66,"NUMBER_OF_ANALYSES":32,"CALCULATION_TYPE":"isochron","GEOLOGICAL_EVENT":"mineralisation","ISOTOPIC_SYSTEM":"Rb/Sr","ISOTOPIC_RATIO":"87Rb/86Sr and 87Sr/86Sr","MINERAL":"White mica","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: RESOlution 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 8900 series","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"mineralisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"initial 87Sr/86Sr ratio = 0.57 +/- 0.21","AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granodiorite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"borehole specimen","SAMPLE_DESC":"Hong et al. (2023): Strongly altered granodiorite characterised by massive greenish mica, quartz and pyrite. Other_ID is the Geological Survey of South Australia sample number, searchable in SARIG.","SAMPLING_FEATURE_NAME":"BD 5","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH920058","BOREHOLE_TOP_DEPTH_M":142.3,"BOREHOLE_BASE_DEPTH_M":142.5,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-33.1870785,"LONG_GDA94":139.4656802,"ELEV_M_AHD":228,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Geological Survey of South Australia","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75783","AGE_REF":"Hong, W., Fabris, A., Wise, T., Collins, A.S., Gilbert, S., Selby, D., Curtis, S., Reid, A.J., 2023. Metallogenic setting and temporal evolution of porphyry Cu-Mo mineralization and alteration in the Delamerian Orogen, South Australia: Insights from zircon U-Pb, molybdenite Re-Os, and in situ white mica Rb-Sr geochronology. Economic Geology, 118(6), 1291-1318.","AGE_PUBLICATION_LINKS":"https://doi.org/10.5382/econgeo.5012","AGE_ENTRY_DATE":"2024-07-12","AGE_LAST_UPDATED":"2024-09-27"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15148","geometry":{"type":"Point","coordinates":[137.70157395,-34.6407928]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15148,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034290","IGSN":"10.60494/g84v-nh33","SAMPLENO":11034290,"SAMPLE_ID":"R786133","AGE_MA":1579,"AGE_MA_UNCERTAINTY":8,"AGE_CONFIDENCE_LEVEL":"2 standard error","AGE_MSWD":0.2,"NUMBER_OF_ANALYSES":21,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"crystallisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":39162,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU39162","STRAT_UNIT_NAME":"Curramulka Gabbronorite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"basic intrusive rock","LITHOLOGY":"gabbronorite","MODE_OF_OCCURRENCE":"pluton","SAMPLE_TYPE":"core","SAMPLE_DESC":"Sample is a gabbronorite from the Curramulka Gabbronorite of Yorke Peninsula (Zang, 2002; Zang, 2006). The gabbronorite consists of plagioclase, pyroxene, hornblende, biotite plus minor quartz. Zircons from this sample are clear, irregularly shaped and show some evidence for magmatic zonation (Reid et al 2006).","SAMPLING_FEATURE_NAME":"CURRAMULKA MCD 1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH938943","BOREHOLE_TOP_DEPTH_M":315.4,"BOREHOLE_BASE_DEPTH_M":315.8,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-34.6407927997,"LONG_GDA94":137.7015739484,"ELEV_M_AHD":0,"ACCURACY_M":10,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2005-08-12","SAMPLE_ORIGINATOR":"Reid, A.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"62963","AGE_REF":"Reid, A.J., Payne, J.L., Wade, B.P., 2006. A new geochronological capability for South Australia: U-Pb zircon dating via LA-ICPMS. MESA Journal, 42, 27-31.","AGE_PUBLICATION_LINKS":"https://pid.sarig.sa.gov.au/document/mesac21639","AGE_ENTRY_DATE":"2025-10-24","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15132","geometry":{"type":"Point","coordinates":[136.5051089,-28.7287443]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15132,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034291","IGSN":null,"SAMPLENO":11034291,"SAMPLE_ID":"R2509353","AGE_MA":1515,"AGE_MA_UNCERTAINTY":7,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.56,"NUMBER_OF_ANALYSES":9,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"hydrothermal alteration","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Titanite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7900","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"alteration","OTHER_AGE_INTERPRETED_FROM_SOURCE":"207Pb/206Pb weighted mean age 1528 +/- 13 Ma. MSWD = 2.18 n = 9.","AGE_REMARK_FROM_SOURCE":"206Pb/238U age is considered more reliable.","AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":14973,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU14973","STRAT_UNIT_NAME":"Peake Metamorphics","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"foliated metamorphic rock","LITHOLOGY":"gneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Bockmann et al 2023: Ep-act-pl altered gneiss. Sample R2509353 is a calc-silicate metasomatite taken from drillhole DC09D01 at 518 m depth. This sample was taken approximately 2.5 m downhole from Sample R2509352 to investigate the age and composition of titanite in the country rock at a greater distance from the ilmenite-rich vein. This sample has a similar alteration assemblage to the host rock of R2509352, containing epidote, actinolite, K-feldspar, calcite, titanite, clinopyroxene, ilmenite and pyrite. Epidote, actinolite and K-feldspar are the dominant alteration minerals in the sample, forming grains typically at 0.5-1 mm that are intergrown. Clinopyroxene is less abundant and is seen being pseudomorphed by actinolite. Titanite grains are largely of 50-300 um and are commonly associated with calcite. Minor pyrite is disseminated throughout the sample, forming irregular shaped grains at 50-300 um.","SAMPLING_FEATURE_NAME":"DC09D01","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH934759","BOREHOLE_TOP_DEPTH_M":517.9,"BOREHOLE_BASE_DEPTH_M":518.1,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-28.7287443,"LONG_GDA94":136.5051089,"ELEV_M_AHD":68,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2009-05-01","SAMPLE_ORIGINATOR":"Bockmann, M.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"76114","AGE_REF":"Bockmann, M.J., Payne, J.L., Hand, M., Morrissey, L.J., Belperio, A.P., 2023, Linking the Gawler Craton and Mount Isa Province through hydrothermal systems in the Peake and Denison Domain, northeastern Gawler Craton. Geoscience Frontiers, 14/5.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.gsf.2023.101596","AGE_ENTRY_DATE":"2025-10-24","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15125","geometry":{"type":"Point","coordinates":[136.5051089,-28.7287443]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15125,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034292","IGSN":null,"SAMPLENO":11034292,"SAMPLE_ID":"R2509352","AGE_MA":1519,"AGE_MA_UNCERTAINTY":8,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.97,"NUMBER_OF_ANALYSES":8,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"hydrothermal alteration","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Titanite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7900","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"alteration","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Titanite analyses from the altered host rock.","AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":14973,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU14973","STRAT_UNIT_NAME":"Peake Metamorphics","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metasomatic rock","LITHOLOGY":"vein","MODE_OF_OCCURRENCE":"vein","SAMPLE_TYPE":"core","SAMPLE_DESC":"Bockmann et al 2023: Ilm-cpx-cal-ep-ttn vein. Sample R2509352 is a calc-silicate metasomatite taken from drillhole DC09D01 at 515.4 m depth. The sample is a strongly altered host rock crosscut by a ~3 cm-wide vein dominated by ilmenite. The host rock contains clinopyroxene, actinolite, epidote, plagioclase, hornblende, quartz and titanite, and the crosscutting vein comprises ilmenite, clinopyroxene, actinolite, epidote, calcite and titanite. Ilmenite and clinopyroxene are the most dominant minerals within the vein, forming grains up to 1.5 cm that are associated with calcite, actinolite and euhedral titanite grains that are up to 3 mm. Epidote (up to 500 um) commonly forms on the edges of ilmenite and titanite within the vein. Epidote is most abundant at the contact between the host rock and the crosscutting vein. There are also variations in the abundance of clinopyroxene, amphibole and plagioclase throughout the host rock. Actinolite is the dominant amphibole in the host rock, but hornblende is present in some domains. Actinolite inclusions occur within clinopyroxene, but actinolite and hornblende are also observed pseudomorphing clinopyroxene, suggesting multiple generations of amphibole are present. The variations in mineralogy in the host rock appear to be spatially controlled but do not seem to correspond to distance from the vein and therefore may reflect protolithic variation. Titanite is also disseminated throughout the host rock, forming smaller and more anhedral grains that are generally at 100-300 um.","SAMPLING_FEATURE_NAME":"DC09D01","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH934759","BOREHOLE_TOP_DEPTH_M":515.4,"BOREHOLE_BASE_DEPTH_M":515.5,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-28.7287443,"LONG_GDA94":136.5051089,"ELEV_M_AHD":68,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2018-06-13","SAMPLE_ORIGINATOR":"Bockmann, M.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"76114","AGE_REF":"Bockmann, M.J., Payne, J.L., Hand, M., Morrissey, L.J., Belperio, A.P., 2023, Linking the Gawler Craton and Mount Isa Province through hydrothermal systems in the Peake and Denison Domain, northeastern Gawler Craton. Geoscience Frontiers, 14/5.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.gsf.2023.101596","AGE_ENTRY_DATE":"2025-10-24","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15641","geometry":{"type":"Point","coordinates":[133.875389,-31.85578]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15641,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11083977","IGSN":"10.60494/3xm4-j723","SAMPLENO":11083977,"SAMPLE_ID":"R389873","AGE_MA":1615,"AGE_MA_UNCERTAINTY":8,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":2.1,"NUMBER_OF_ANALYSES":19,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation, intrusive","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"DATA REPROCESSED. Ferris (2001) originally reported an age of 1608 +/- 5.5 Ma (SampleId R389873), however this age data has been recalculated for Fanning et al (2007) publication, which supersedes this previous age.","AGE_SOURCE":"GSSA/Original publication","PROJECT":null,"STRATNO":24502,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU24502","STRAT_UNIT_NAME":"St Peter Suite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"granodiorite, St Peter Suite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granodiorite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"R389873","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS1008682","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-31.85578,"LONG_GDA94":133.875389,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":"Ceduna","SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Bodorkos, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"65376","AGE_REF":"Fanning, C.M., Reid, A.J., Teale, G.S., 2007. A geochronological framework for the Gawler Craton, South Australia. Geological Survey of South Australia Bulletin, 55, 258p.","AGE_PUBLICATION_LINKS":"https://pid.sarig.sa.gov.au/document/2018d037833","AGE_ENTRY_DATE":"2025-11-18","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15149","geometry":{"type":"Point","coordinates":[137.87113292,-34.53929431]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15149,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034300","IGSN":"10.60494/21rs-r660","SAMPLENO":11034300,"SAMPLE_ID":"R1831633","AGE_MA":1584,"AGE_MA_UNCERTAINTY":7,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.1,"NUMBER_OF_ANALYSES":24,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"hydrothermal alteration","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Allanite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP IIe","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"fluid flow event","OTHER_AGE_INTERPRETED_FROM_SOURCE":"1580 +/- 9 Ma (MSWD 0.95, n = 33) = inverse isochron age - uncorrected.","AGE_REMARK_FROM_SOURCE":"This date of 1584 +/- 7 Ma is considered the best estimate for the timing of allanite crystallisation in this sample.","AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metasomatic rock","LITHOLOGY":"skarn","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Reid & Jagodzinski 2011: The sample consists of quartz, pyrite, chalcopyrite, hematite (after magnetite) and allanite, with minor titanite, apatite and carbonate. Allanite is abundant and forms idiomorphic to subhedral crystals up to 2 mm in length. It is commonly intergrown with hematite and chalcopyrite, and chalcopyrite also occurs as an inclusion phase in allanite. Sample R1831633 shows evidence of late veining and fracturing accompanied by chloritisation, and many allanite grains contain chlorite-filled fractures. The Allanite sampled at 394 m from drillhole HDD026, intersects a zone of high grade mineralisation (21 m @ 3.35% Cu and 0.72g/t Au), within the Hillside Prospect.","SAMPLING_FEATURE_NAME":"HDD-026","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH938946","BOREHOLE_TOP_DEPTH_M":394,"BOREHOLE_BASE_DEPTH_M":394.1,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-34.5392943124,"LONG_GDA94":137.8711329209,"ELEV_M_AHD":0,"ACCURACY_M":10,"LOCATION_METHOD":"published report, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Reid, A.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"76117","AGE_REF":"Gregory, C., Reid, A., Say, P., Teale, G., 2011. Project PGC01-06: U-Pb geochronology of hydrothermal allanite and titanite and magmatic zircon from the Hillside Cu-Au Deposit, Yorke Peninsula. IN: Reid, A.J. and Jagodzinski, E.A. (Eds) 2011. PACE Geochronology: Results of collaborative geochronology projects 2009–10 South Australia. Department of Primary Industries and Resources South Australia. Mineral Exploration Data Package, RB 2011/00003, 95-124.","AGE_PUBLICATION_LINKS":"https://pid.sarig.sa.gov.au/document/d20010247","AGE_ENTRY_DATE":"2025-10-24","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15159","geometry":{"type":"Point","coordinates":[137.87113292,-34.53929431]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15159,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034301","IGSN":"10.60494/npyk-ta15","SAMPLENO":11034301,"SAMPLE_ID":"R1831632","AGE_MA":1750,"AGE_MA_UNCERTAINTY":16,"AGE_CONFIDENCE_LEVEL":"1 standard deviation","AGE_MSWD":null,"NUMBER_OF_ANALYSES":1,"CALCULATION_TYPE":"single analysis","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"AR-12","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP IIe","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"maximum depositional age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"The ~1750 Ma zircon is geologically reasonable since this is approximately the timing of deposition of the Wallaroo Group, inferred to be largely the host rock metavolcanic and metasedimentary sequence across much of southern Yorke Peninsula.","AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":23126,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU23126","STRAT_UNIT_NAME":"Wallaroo Group","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous volcanic rock","LITHOLOGY":"igneous volcanic rock","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Reid & Jagodzinski 2011: Sample R1831632 is a fine grained and pervasively hematite altered metasedimentary rock. Zircons from this sample have a range of morphologies.","SAMPLING_FEATURE_NAME":"HDD-026","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH938946","BOREHOLE_TOP_DEPTH_M":689.5,"BOREHOLE_BASE_DEPTH_M":690.8,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-34.5392943124,"LONG_GDA94":137.8711329209,"ELEV_M_AHD":0,"ACCURACY_M":10,"LOCATION_METHOD":"published report, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Reid, A.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"76117","AGE_REF":"Gregory, C., Reid, A., Say, P., Teale, G., 2011. Project PGC01-06: U-Pb geochronology of hydrothermal allanite and titanite and magmatic zircon from the Hillside Cu-Au Deposit, Yorke Peninsula. IN: Reid, A.J. and Jagodzinski, E.A. (Eds) 2011. PACE Geochronology: Results of collaborative geochronology projects 2009–10 South Australia. Department of Primary Industries and Resources South Australia. Mineral Exploration Data Package, RB 2011/00003, 95-124.","AGE_PUBLICATION_LINKS":"https://pid.sarig.sa.gov.au/document/d20010247","AGE_ENTRY_DATE":"2025-10-24","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15121","geometry":{"type":"Point","coordinates":[137.87558695,-34.53197819]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15121,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034302","IGSN":"10.60494/mhtc-3345","SAMPLENO":11034302,"SAMPLE_ID":"R1831634","AGE_MA":1588,"AGE_MA_UNCERTAINTY":10,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.08,"NUMBER_OF_ANALYSES":22,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"AR-14","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP IIe","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation, intrusive","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":26941,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU26941","STRAT_UNIT_NAME":"Tickera Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Reid & Jagodzinski 2011: Sample R1831634 is a an altered medium-grained quartz-K-feldspar-plagioclase granitoid. Narrow hematite +/- sericite +/- chlorite +/- carbonate +/- quartz fractures are common throughout the granite intrusions and the granite is pervasively hematised. ","SAMPLING_FEATURE_NAME":"HDD-105","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH938947","BOREHOLE_TOP_DEPTH_M":272,"BOREHOLE_BASE_DEPTH_M":272.4,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-34.5319781905,"LONG_GDA94":137.8755869467,"ELEV_M_AHD":0,"ACCURACY_M":10,"LOCATION_METHOD":"published report, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Reid, A.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"76117","AGE_REF":"Gregory, C., Reid, A., Say, P., Teale, G., 2011. Project PGC01-06: U-Pb geochronology of hydrothermal allanite and titanite and magmatic zircon from the Hillside Cu-Au Deposit, Yorke Peninsula. IN: Reid, A.J. and Jagodzinski, E.A. (Eds) 2011. PACE Geochronology: Results of collaborative geochronology projects 2009–10 South Australia. Department of Primary Industries and Resources South Australia. Mineral Exploration Data Package, RB 2011/00003, 95-124.","AGE_PUBLICATION_LINKS":"https://pid.sarig.sa.gov.au/document/d20010247","AGE_ENTRY_DATE":"2025-10-24","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15127","geometry":{"type":"Point","coordinates":[137.81729,-33.69165]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15127,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034303","IGSN":"10.60494/cswg-ez16","SAMPLENO":11034303,"SAMPLE_ID":"2665668","AGE_MA":1556,"AGE_MA_UNCERTAINTY":25,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.75,"NUMBER_OF_ANALYSES":11,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: GeoLas 193nm ArF laser ablation system","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: MC-ICPMS","LABORATORY_NAME":"China Metallurgical Geology Bureau","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":26613,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU26613","STRAT_UNIT_NAME":"Hiltaba Suite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Reid et al 2020: Sample 2665668 is representative of the granite in this drillhole and is a medium- to coarse grained, red-coloured, biotite-bearing granite. This sample of coarse-grained granite comprises K-feldspar, quartz and plagioclase with randomly oriented biotite flakes. The K-feldspar is perthitic microcline and variably altered. Plagioclase is variably sericite- and hematite-altered. Quartz shows weak undulose extinction and is intergrown with the anhedral feldspars. The biotite is green coloured and is weakly altered to chlorite along the margins of the grains. Accessory minerals include opaques, including magnetite, along with zircon, monazite and possible allanite. Approximate mineral abundance is quartz 35%; K-feldspar 40%; plagioclase 20%; biotite 4%; oxides 1%. Drillhole KD 10 was drilled by Phelps Dodge as part of a program in the area known as the Katinka project (Drummond et al., 2000). This exploration program targeted Roxby Downs style and Ernest Henry style copper-gold mineralisation in an area of intensely magnetic, concealed metasedimentary and intrusive igneous basement terrain in the northern Yorke Peninsula.","SAMPLING_FEATURE_NAME":"KD 10","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH938948","BOREHOLE_TOP_DEPTH_M":187.8,"BOREHOLE_BASE_DEPTH_M":189,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-33.69165,"LONG_GDA94":137.81729,"ELEV_M_AHD":0,"ACCURACY_M":10,"LOCATION_METHOD":"published report, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2018-10-02","SAMPLE_ORIGINATOR":"Reid, A.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73092","AGE_REF":"Reid, A., Zhao, Y., Wang, T., Zhao, X., 2020. Reconnaissance zircon U-Pb geochronology of the southeastern Olympic Cu-Au Province, South Australia. Geological Survey of South Australia. Report Book, 2020/00015, 69p.","AGE_PUBLICATION_LINKS":"https://pid.sarig.sa.gov.au/document/2020d032465","AGE_ENTRY_DATE":"2025-10-24","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15243","geometry":{"type":"Point","coordinates":[137.258188,-31.245536]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15243,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034252","IGSN":"10.60494/x0ck-hb57","SAMPLENO":11034252,"SAMPLE_ID":"1831656","AGE_MA":1844,"AGE_MA_UNCERTAINTY":22,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.27,"NUMBER_OF_ANALYSES":4,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"AR15","ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Low zircon yield, only four grains were analysed from this sample. All data are within +/-10% of concordia.","AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":5603,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU5603","STRAT_UNIT_NAME":"Donington Suite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Donington Suite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Reid & Fabris 2012: This sample is an altered granite representative of the altered granite within drill hole MGD 46. Sample 1831656 is a medium-grained granite, comprising quartz, plagioclase, K-feldspar, biotite and muscovite. The quartz shows abundant undulose extinction and in places shows subgrain development, consistent with the sample having undergone some degree of strain. The feldspars are extensively replaced by microcrystalline intergrowth of sericite plus hematite. The sample shows a distinctive pattern in alteration of the feldspars. Plagioclase is more pervasively retrogressed to fine sericite plus hematite, while relict primary igneous twinning is more readily observed within the K-feldspar (microcline). Muscovite is the dominant mica phase within the sample, occurring as elongate laths up to 4mm in length within the granoblastic texture. Biotite is less common, present as smaller laths of dark brown coloured igneous crystals. Dissecting the rock are hematite plus chlorite filled fractures. Hematite plus chlorite also infiltrate along grain boundaries forming a network of alteration within the rock. Within some of the fractures are small laths of muscovite (sericite). Pleochronic brown, anhedral biotite is also present, associated with the chlorite+hematite alteration. In places small apatite crystals are also observed and are associated with the chlorite-rich alteration. ","SAMPLING_FEATURE_NAME":"MGD 46","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH520335","BOREHOLE_TOP_DEPTH_M":705.1,"BOREHOLE_BASE_DEPTH_M":706,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-31.245536,"LONG_GDA94":137.258188,"ELEV_M_AHD":94,"ACCURACY_M":25,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2011-03-15","SAMPLE_ORIGINATOR":"Reid, A.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"69033","AGE_REF":"Reid, A., Fabris, A., 2012. Age of host rocks at the Chianti Cu-Au Prospect, eastern Gawler Craton from zircon U-Pb geochronology. Geological Survey of South Australia. Report Book, 2012/00014, 30p.","AGE_PUBLICATION_LINKS":"https://pid.sarig.sa.gov.au/document/d20010579","AGE_ENTRY_DATE":"2025-10-29","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15203","geometry":{"type":"Point","coordinates":[137.252148,-31.251144]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15203,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034253","IGSN":"10.60494/gefc-ew96","SAMPLENO":11034253,"SAMPLE_ID":"R1831646","AGE_MA":1857,"AGE_MA_UNCERTAINTY":19,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.92,"NUMBER_OF_ANALYSES":5,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":5603,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU5603","STRAT_UNIT_NAME":"Donington Suite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Donington Suite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"syenogranite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"GSSA rock database: Altered biotite-muscovite syenogranite. Sparse brown biotite and colourless muscovite surrounded by predominantly large clean quartz grains, microcline (weak twins are shown by clay alteration) and minor plagioclase with partial replacement by brown clay/sericite.","SAMPLING_FEATURE_NAME":"MGD45","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH520334","BOREHOLE_TOP_DEPTH_M":667.05,"BOREHOLE_BASE_DEPTH_M":667.3,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-31.251144,"LONG_GDA94":137.252148,"ELEV_M_AHD":92,"ACCURACY_M":25,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2011-03-15","SAMPLE_ORIGINATOR":"Reid, A.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"74364","AGE_REF":"Hall, J.W., Glorie, S., Reid, A.J., Collins, A.S., Jourdan, F., Danisik, M., Evans, N., 2018. Thermal history of the northern Olympic Domain, Gawler Craton; correlations between thermochronometric data and mineralising systems. Gondwana Research, 56, 90-104.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.gr.2018.01.001","AGE_ENTRY_DATE":"2025-10-29","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15123","geometry":{"type":"Point","coordinates":[137.8368,-34.5915]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15123,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034314","IGSN":"10.60494/pqbs-hr88","SAMPLENO":11034314,"SAMPLE_ID":"T13DD","AGE_MA":1425,"AGE_MA_UNCERTAINTY":18,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.81,"NUMBER_OF_ANALYSES":54,"CALCULATION_TYPE":"lower concordia intercept","GEOLOGICAL_EVENT":"cooling","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"238U/206Pb and 207Pb/206Pb","MINERAL":"Apatite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7900","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"cooling age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Upper intercepts (initial 207Pb/206Pb) are constrained from cogenetic K-feldspar.","AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"foliated metamorphic rock","LITHOLOGY":"gneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"borehole specimen","SAMPLE_DESC":"Bockmann et al 2022: Qz-kfs-crd-bt-sil-pl-hem gneiss. 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Grains of quartz, K-feldspar, cordierite and plagioclase are typically between 100 and 300 um, whereas biotite, hematite, and patches of sillimanite are typically between 1 and 3 mm.","SAMPLING_FEATURE_NAME":"T13DD","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH938956","BOREHOLE_TOP_DEPTH_M":80.4,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-34.5915,"LONG_GDA94":137.8368,"ELEV_M_AHD":0,"ACCURACY_M":10,"LOCATION_METHOD":"published report, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Bockmann, M.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73644","AGE_REF":"Bockmann, M.J., Hand, M., Morrissey, L.J., Payne, J.L., Hasterok, D., Teale, G., Conor, C., 2022. 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Grains of quartz, K-feldspar, cordierite and plagioclase are typically between 100 and 300 um, whereas biotite, hematite, and patches of sillimanite are typically between 1 and 3 mm.","SAMPLING_FEATURE_NAME":"T13DD","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH938956","BOREHOLE_TOP_DEPTH_M":80.4,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-34.5915,"LONG_GDA94":137.8368,"ELEV_M_AHD":0,"ACCURACY_M":10,"LOCATION_METHOD":"published report, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Bockmann, M.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73644","AGE_REF":"Bockmann, M.J., Hand, M., Morrissey, L.J., Payne, J.L., Hasterok, D., Teale, G., Conor, C., 2022. 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Towards an understanding of the age and origin of mesothermal gold mineralisation in the Etheridge Goldfield, Georgetown region, north Queensland. 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Original comment: 'The analysed cores are older than their host rock having crystallised between about 2917 and 3110Ma. The pegmatite itself crystallised at 1196+_8 Ma (during granulite facies metamorphism).' source=ozchron-2011-08","AGE_SOURCE":"Updated from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 20 September 2019","PROJECT":null,"STRATNO":30537,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU30537","STRAT_UNIT_NAME":"Dalyup Gneiss","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"pegmatite","MODE_OF_OCCURRENCE":"vein","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"quartz-plagioclase-orthopyroxene-hornblende vein -[informal_name: undifferentiated pegmatite]-, vein","SAMPLING_FEATURE_NAME":"87010001","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS135127","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Albany-Fraser Orogen","GEOLOGICAL_REGION_NAME":"Bremer Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-34.4987818387,"LONG_GDA94":118.9015203971,"ELEV_M_AHD":50,"ACCURACY_M":100,"LOCATION_METHOD":"1:100 000 map","LOCATION_DESC":"Central Domain Albany Mobile Belt. 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Zircon U-Pb geochronology from selected Paleoproterozoic igneous rocks of the Gawler Craton by laser ablation-inductively coupled plasma mass spectrometry. Geological Survey of South Australia. 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Economic Geology, 118(6), 1291-1318.","AGE_PUBLICATION_LINKS":"https://doi.org/10.5382/econgeo.5012","AGE_ENTRY_DATE":"2024-07-12","AGE_LAST_UPDATED":"2024-09-27"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14708","geometry":{"type":"Point","coordinates":[144.2430254,-36.763974]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14708,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677785","IGSN":"10.60494/r8cx-sb17","SAMPLENO":9677785,"SAMPLE_ID":"BEN 2","AGE_MA":487.2,"AGE_MA_UNCERTAINTY":4.4,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.21,"NUMBER_OF_ANALYSES":5,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"Macquarie University","AGE_INTERPRETED_FROM_SOURCE":"mean of the five youngest grains","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"five youngest grains","AGE_SOURCE":"MinView/Original publication","PROJECT":null,"STRATNO":36202,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU36202","STRAT_UNIT_NAME":"Castlemaine Group","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Ben2 Castlemaine Group","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"medium-coarse grained siliciclastic rock","LITHOLOGY":"sandstone","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Glen et al 2017 paraphrased: \"Ben 2 is a sandstone adjacent to laminated shales with Bendigonian graptolites\"","SAMPLING_FEATURE_NAME":"BEN 2","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS922790","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"VIC","COUNTRY":"AUS","LAT_GDA94":-36.763974,"LONG_GDA94":144.2430254,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":"From a cutting on the Bendigo-Castlemaine rail line","SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Saeed, A.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75256","AGE_REF":"Glen, R.A., Fitzsimons, I.C.W., Griffin, W.L., Saeed, A., 2017. 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Australian Journal of Earth Sciences, 64(2), 143-224.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099.2017.1273256","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14653","geometry":{"type":"Point","coordinates":[144.614973,-37.27681]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14653,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677786","IGSN":"10.60494/fb6k-8m94","SAMPLENO":9677786,"SAMPLE_ID":"COB 1","AGE_MA":493.1,"AGE_MA_UNCERTAINTY":5.5,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.75,"NUMBER_OF_ANALYSES":4,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"Macquarie University","AGE_INTERPRETED_FROM_SOURCE":"mean age from four out of five older grains between ca 480-500 Ma","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"59 zircons range in age from ca 500 to 3200 Ma. The dominant population is between ca 480 and 620 Ma.","AGE_SOURCE":"MinView/Original publication","PROJECT":null,"STRATNO":36202,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU36202","STRAT_UNIT_NAME":"Castlemaine Group","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"COB 1, Castlemaine Group","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"medium-coarse grained siliciclastic rock","LITHOLOGY":"sandstone","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Glen et al 2017 paraphrased: \"Cob 1 is a sandstone adjacent to laminated shales with Darriwilian-Gisbornian graptolites\"","SAMPLING_FEATURE_NAME":"COB 1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS922791","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"VIC","COUNTRY":"AUS","LAT_GDA94":-37.27681,"LONG_GDA94":144.614973,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Saeed, A.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75256","AGE_REF":"Glen, R.A., Fitzsimons, I.C.W., Griffin, W.L., Saeed, A., 2017. East Antarctic sources of extensive Lower-Middle Ordovician turbidites in the Lachlan Orogen, southern Tasmanides, eastern Australia. Australian Journal of Earth Sciences, 64(2), 143-224.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099.2017.1273256","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14657","geometry":{"type":"Point","coordinates":[145.995348,-31.51506]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14657,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677787","IGSN":"10.60494/eakj-8p91","SAMPLENO":9677787,"SAMPLE_ID":"OGGYC1","AGE_MA":462,"AGE_MA_UNCERTAINTY":null,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":null,"NUMBER_OF_ANALYSES":2,"CALCULATION_TYPE":"probability frequency maximum","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"Macquarie University","AGE_INTERPRETED_FROM_SOURCE":"maximum depositional age of the sandstone","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"The late Panafrican population contains the following groups: (i) two grains at 462 and 466 Ma, producing the peak at 462 Ma, and which provide the best estimate of the maximum depositional age of the sandstone, overlapping with the paleontological age of 461-463 Ma; (ii) five grains at 480-500 Ma that contain the age peak at 488 Ma and corresponding mean age of 491 +/-  5 Ma [significance?]; and (iii) a large spread of 22 grains from ca 520 to 620 Ma, which contain the age peaks of 524 and 577 Ma, both of which represent small plateaus within this spread.","AGE_SOURCE":"MinView/Original publication","PROJECT":null,"STRATNO":27158,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU27158","STRAT_UNIT_NAME":"Girilambone Group","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Girilambone Group","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"medium-coarse grained siliciclastic rock","LITHOLOGY":"sandstone","MODE_OF_OCCURRENCE":"bed","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Glen et al 2017 paraphrased: \"Oggyc1 is a sandstone interbedded with Darriwilian4 cherts from outcrop just west of Yanda Creek beside the Nyngan-Cobar rail line east of Cobar\"","SAMPLING_FEATURE_NAME":"OGGYC1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS922792","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-31.51506,"LONG_GDA94":145.995348,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Saeed, A.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75256","AGE_REF":"Glen, R.A., Fitzsimons, I.C.W., Griffin, W.L., Saeed, A., 2017. East Antarctic sources of extensive Lower-Middle Ordovician turbidites in the Lachlan Orogen, southern Tasmanides, eastern Australia. Australian Journal of Earth Sciences, 64(2), 143-224.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099.2017.1273256","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14695","geometry":{"type":"Point","coordinates":[146.02512158,-31.41579114]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14695,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677788","IGSN":"10.60494/e79e-5c86","SAMPLENO":9677788,"SAMPLE_ID":"Te2","AGE_MA":475,"AGE_MA_UNCERTAINTY":null,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":null,"NUMBER_OF_ANALYSES":2,"CALCULATION_TYPE":"probability frequency maximum","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"Macquarie University","AGE_INTERPRETED_FROM_SOURCE":"maximum age of deposition","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication","PROJECT":null,"STRATNO":73364,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU73364","STRAT_UNIT_NAME":"Narrama Formation","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Narrama Sandstone - Girilambone Group","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"medium-coarse grained siliciclastic rock","LITHOLOGY":"sandstone","MODE_OF_OCCURRENCE":"bed","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Glen et al 2017: Sample Te2 comes from the massive part of a cleaved sandstone bed that lies adjacent to a chert containing the Lancefieldian-Chewtonian (ca 475-485 Ma) conodonts (Percival, 2012) at 407337E, 6523907N. ","SAMPLING_FEATURE_NAME":"Te2","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS922793","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-31.4157911408,"LONG_GDA94":146.0251215773,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"published report, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Trigg, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75256","AGE_REF":"Glen, R.A., Fitzsimons, I.C.W., Griffin, W.L., Saeed, A., 2017. East Antarctic sources of extensive Lower-Middle Ordovician turbidites in the Lachlan Orogen, southern Tasmanides, eastern Australia. Australian Journal of Earth Sciences, 64(2), 143-224.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099.2017.1273256","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14666","geometry":{"type":"Point","coordinates":[147.091293,-33.466763]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14666,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677789","IGSN":"10.60494/vay4-x887","SAMPLENO":9677789,"SAMPLE_ID":"OWW3","AGE_MA":486,"AGE_MA_UNCERTAINTY":4,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":null,"NUMBER_OF_ANALYSES":1,"CALCULATION_TYPE":"single analysis","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"Macquarie University","AGE_INTERPRETED_FROM_SOURCE":"maximum depositional age (sedimentary)","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Age taken from MinView. Zircons lie between ca 460 and 3200 Ma, with a near-continuous spread of ages from ca 460 to 1070 Ma, and many fewer zircons >1100 Ma.","AGE_SOURCE":"MinView/Original publication","PROJECT":null,"STRATNO":98,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU98","STRAT_UNIT_NAME":"Adaminaby Group","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Adaminaby Group","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"medium-coarse grained siliciclastic rock","LITHOLOGY":"sandstone","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Glen et al 2017: Oww3 was taken from a sandstone bed in a roadside quarry on the Condobolin 1:100 000 geological sheet (Scott & Sherwin, 2000), where it is associated with Darriwilian4 cherts (Percival et al. 2011).","SAMPLING_FEATURE_NAME":"OWW3","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS922794","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-33.466763,"LONG_GDA94":147.091293,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Saeed, A.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75256","AGE_REF":"Glen, R.A., Fitzsimons, I.C.W., Griffin, W.L., Saeed, A., 2017. East Antarctic sources of extensive Lower-Middle Ordovician turbidites in the Lachlan Orogen, southern Tasmanides, eastern Australia. Australian Journal of Earth Sciences, 64(2), 143-224.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099.2017.1273256","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15144","geometry":{"type":"Point","coordinates":[137.8368,-34.5915]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15144,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034314","IGSN":"10.60494/pqbs-hr88","SAMPLENO":11034314,"SAMPLE_ID":"T13DD","AGE_MA":1568,"AGE_MA_UNCERTAINTY":14,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":13,"CALCULATION_TYPE":"mixture-modelled component","GEOLOGICAL_EVENT":"metamorphism","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Monazite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7900","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"metamorphic age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"The monazite KDE plot indicates the age population is asymmetric, suggesting two age populations are present: ~1568 Ma and ~1513 Ma.","AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"foliated metamorphic rock","LITHOLOGY":"gneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"borehole specimen","SAMPLE_DESC":"Bockmann et al 2022: Qz-kfs-crd-bt-sil-pl-hem gneiss. This metapelitic gneiss contains quartz, K-feldspar, cordierite, biotite, sillimanite (fibrolite), plagioclase and hematite. This sample has gneissic layering defined by domains of quartz, K-feldspar and plagioclase that alternate with sillimanite, hematite, cordierite and biotite. A strong foliation is defined by biotite, sillimanite and hematite. Grains of quartz, K-feldspar, cordierite and plagioclase are typically between 100 and 300 um, whereas biotite, hematite, and patches of sillimanite are typically between 1 and 3 mm.","SAMPLING_FEATURE_NAME":"T13DD","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH938956","BOREHOLE_TOP_DEPTH_M":80.4,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-34.5915,"LONG_GDA94":137.8368,"ELEV_M_AHD":0,"ACCURACY_M":10,"LOCATION_METHOD":"published report, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Bockmann, M.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73644","AGE_REF":"Bockmann, M.J., Hand, M., Morrissey, L.J., Payne, J.L., Hasterok, D., Teale, G., Conor, C., 2022. Punctuated geochronology within a sustained high-temperature thermal regime in the southeastern Gawler Craton. Lithos, 430-431, 106860, 18p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.lithos.2022.106860","AGE_ENTRY_DATE":"2025-10-24","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15141","geometry":{"type":"Point","coordinates":[136.8856916,-33.5964754]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15141,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034315","IGSN":"10.60494/07w1-4453","SAMPLENO":11034315,"SAMPLE_ID":"R1779865","AGE_MA":1723,"AGE_MA_UNCERTAINTY":13,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.12,"NUMBER_OF_ANALYSES":8,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation, intrusive","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":"intrusion","SAMPLE_TYPE":"core","SAMPLE_DESC":"Jagodzinski et al 2011: This sample is a pink coloured, weakly foliated, quartz-feldspar-biotite granite. This granite intrudes the iron formation in drillhole BUDD023 and has a sharp upper contact that is discordant to the main compositional variation within the iron formation (inferred to represent an S0//S1 foliation). The lower contact of this particular zone of granite is a zone of white, milky quartz. The granite is interpreted to be syn-tectonic.","SAMPLING_FEATURE_NAME":"BUDD023","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH995371","BOREHOLE_TOP_DEPTH_M":119.8,"BOREHOLE_BASE_DEPTH_M":121,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-33.5964754,"LONG_GDA94":136.8856916,"ELEV_M_AHD":0,"ACCURACY_M":200,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Reid, A.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"68132","AGE_REF":"Jagodzinski, E.A., Reid, A., Farrell, F., 2011. Project PGC01-04: Geochronology of the Bungalow Prospect. IN Reid, A. and Jagodzinski, L. (eds) PACE Geochronology: Results of collaborative geochronology projects. Geological Survey of South Australia. Report Book, 2011/00003, 42-62.","AGE_PUBLICATION_LINKS":"https://pid.sarig.sa.gov.au/document/d20010247","AGE_ENTRY_DATE":"2025-10-24","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14706","geometry":{"type":"Point","coordinates":[148.916503,-32.782329]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14706,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677800","IGSN":"10.60494/ywdq-kb34","SAMPLENO":9677800,"SAMPLE_ID":"WAH1","AGE_MA":464.6,"AGE_MA_UNCERTAINTY":3.2,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"Macquarie University","AGE_INTERPRETED_FROM_SOURCE":"mean magmatic age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Stratigraphic constraints indicate the maximum age range for this sample of Fairbridge Volcanics lies between ~468 and 455 Ma, with the zircon data providing a weighted mean of 464.6 +/- 3.2 Ma.","AGE_SOURCE":"MinView/Original publications","PROJECT":null,"STRATNO":25904,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU25904","STRAT_UNIT_NAME":"Fairbridge Volcanics","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Fairbridge Volcanics","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous volcanic rock","LITHOLOGY":"volcaniclastic sandstone","MODE_OF_OCCURRENCE":"bed","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Glen et al 2011 paraphrased: \"Sample is from < 1 m below the lowest recorded allochthonous limestone containing a Darriwilian 3 fauna (~465 Ma) (Zhen et al., 2004). Bedded volcaniclastic fine-grained sandstone containing grains of plagioclase and pyroxene, and fragments of lavas and volcaniclastic rocks in a fine-grained matrix.\"","SAMPLING_FEATURE_NAME":"WAH1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS922803","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-32.782329,"LONG_GDA94":148.916503,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":"Wellington 1:100,000 map sheet 8632 54H 0679179 6371999","SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Saeed, A.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"67106; 75256","AGE_REF":"Glen, R.A., Saeed, A., Quinn, C.D., Griffin, W.L., 2011. U-Pb and Hf isotope data from zircons in the Macquarie Arc, Lachlan Orogen: Implications for arc evolution and Ordovician palaeogeography along part of the east Gondwana margin. Gondwana Research, 19(3), 670-685.; Glen, R.A., Fitzsimons, I.C.W., Griffin, W.L., Saeed, A., 2017. East Antarctic sources of extensive Lower-Middle Ordovician turbidites in the Lachlan Orogen, southern Tasmanides, eastern Australia. Australian Journal of Earth Sciences, 64(2), 143-224.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.gr.2010.11.011; https://doi.org/10.1080/08120099.2017.1273256","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14689","geometry":{"type":"Point","coordinates":[149.7470323,-33.71337487]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14689,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677801","IGSN":"10.60494/e56s-vj25","SAMPLENO":9677801,"SAMPLE_ID":"OR3","AGE_MA":453.9,"AGE_MA_UNCERTAINTY":2.7,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":null,"NUMBER_OF_ANALYSES":14,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"Macquarie University","AGE_INTERPRETED_FROM_SOURCE":"magmatic age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Sample OR3 indicates a single magmatic age for the Phase 4 Rockley Volcanics of 454.3 +/- 2.9 Ma","AGE_SOURCE":"MinView/Original publications","PROJECT":null,"STRATNO":16213,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU16213","STRAT_UNIT_NAME":"Rockley Volcanics","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Rockley Volcanics","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous volcanic rock","LITHOLOGY":"volcaniclastic sandstone","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Glen et al 2011: Mafic volcaniclastic sandstone","SAMPLING_FEATURE_NAME":"OR3","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS922804","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-33.71337487,"LONG_GDA94":149.7470323,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":"Oberon 1:100,000 map sheet 8830 GDA 55H 754570 6266222","SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Saeed, A.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"67106; 75256","AGE_REF":"Glen, R.A., Saeed, A., Quinn, C.D., Griffin, W.L., 2011. 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Disseminated coarse leucoxenised opaques and disseminated euhedral apatite, minor zircons, rare metamict possible monazite.","SAMPLING_FEATURE_NAME":"PBD 30","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH17900","BOREHOLE_TOP_DEPTH_M":119.4,"BOREHOLE_BASE_DEPTH_M":120.4,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-33.7120836,"LONG_GDA94":137.8000618,"ELEV_M_AHD":23,"ACCURACY_M":1000,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2018-10-02","SAMPLE_ORIGINATOR":"Reid, A.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73092","AGE_REF":"Reid, A., Zhao, Y., Wang, T., Zhao, X., 2020. Reconnaissance zircon U-Pb geochronology of the southeastern Olympic Cu-Au Province, South Australia. Geological Survey of South Australia. Report Book, 2020/00015, 69p.","AGE_PUBLICATION_LINKS":"https://pid.sarig.sa.gov.au/document/2020d032465","AGE_ENTRY_DATE":"2025-10-29","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15236","geometry":{"type":"Point","coordinates":[134.4047221,-30.7606413]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15236,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034278","IGSN":"10.60494/aa20-0377","SAMPLENO":11034278,"SAMPLE_ID":"3826694","AGE_MA":1618,"AGE_MA_UNCERTAINTY":12,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":1.4,"NUMBER_OF_ANALYSES":19,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"GS21101-22, mount 1","ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: RESOlution 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 8900 series","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":24502,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU24502","STRAT_UNIT_NAME":"St Peter Suite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"St Peter Suite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granodiorite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Brown et al 2022: Sample 3826694 is a medium-grained plagioclase-quartz-biotite-augite granodiorite with an equigranular texture. 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Mineral proportions: plagioclase (~50 vol%), quartz (~25 vol%), biotite (~10 vol%), augite (~5 vol%), K-feldspar (~5 vol%), minor phases (5 vol%).","SAMPLING_FEATURE_NAME":"PWP 71","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH880780","BOREHOLE_TOP_DEPTH_M":48.7,"BOREHOLE_BASE_DEPTH_M":49.01,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-30.7606413,"LONG_GDA94":134.4047221,"ELEV_M_AHD":124,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2021-08-30","SAMPLE_ORIGINATOR":"Reid, A.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"74363","AGE_REF":"Brown, D., Pawley, M., Williams, M., Reid, A., Jagodzinski, E., 2022. Zircon LA-ICP-MS geochronological and geochemical results from the central-western Gawler Craton. 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Report Book, 2022/00008, 139p.","AGE_PUBLICATION_LINKS":"https://pid.sarig.sa.gov.au/document/2022d112405","AGE_ENTRY_DATE":"2025-10-29","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15244","geometry":{"type":"Point","coordinates":[137.3293657,-32.4671333]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15244,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034279","IGSN":"10.60494/yy1p-f026","SAMPLENO":11034279,"SAMPLE_ID":"2116683","AGE_MA":1590.1,"AGE_MA_UNCERTAINTY":0.6,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.7,"NUMBER_OF_ANALYSES":6,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"isotope dilution: chemical abrasion and isotope dilution","ANALYTICAL_COLLECTION_SYSTEM":"TIMS: GV Isoprobe-T","LABORATORY_NAME":"Boise State University","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":7059,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU7059","STRAT_UNIT_NAME":"Gawler Range Volcanics","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Map unit M15, lower Gawler Range Volcanics","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid volcanic rock","LITHOLOGY":"rhyolite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Jagodzinski et al 2023: 2116683 is from a quartz-feldspar-phyric rhyolite at the top of the stratigraphic unit. The rhyolite is composed of moderately abundant, randomly oriented phenocrysts (plagioclase (20%) > quartz (10%) > K-feldspar (5%) >> ferromagnesians likely pyroxene (2%) >> magnetite (1%) >> biotite, apatite, zircon) in a devitrified groundmass of K-feldspar and quartz. ","SAMPLING_FEATURE_NAME":"RC 1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH895267","BOREHOLE_TOP_DEPTH_M":118.14,"BOREHOLE_BASE_DEPTH_M":119.1,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-32.4671333,"LONG_GDA94":137.3293657,"ELEV_M_AHD":120,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2015-03-10","SAMPLE_ORIGINATOR":"Jagodzinski, E.A.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75868","AGE_REF":"Jagodzinski, E.A., Reid, A.J., Crowley, J.L., Wade, C.E., 2023. Precise zircon U-Pb dating of the Mesoproterozoic Gawler large igneous province, South Australia. Results in Geochemistry, 10, article 100020, 16p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.ringeo.2022.100020","AGE_ENTRY_DATE":"2025-10-29","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.4258","geometry":{"type":"Point","coordinates":[141.24859695,-31.73353004]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":4258,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU2676607","IGSN":"10273/AU2676607","SAMPLENO":2676607,"SAMPLE_ID":"NSWSJAF0175.01A","AGE_MA":1790,"AGE_MA_UNCERTAINTY":6,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.37,"NUMBER_OF_ANALYSES":40,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"GA6360","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Geoscience Australia","AGE_INTERPRETED_FROM_SOURCE":"Maximum depositional age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"Inserted from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 23 October 2019","PROJECT":null,"STRATNO":17531,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU17531","STRAT_UNIT_NAME":"Sundown Group","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metasedimentary siliciclastic rock","LITHOLOGY":"psammite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"This sample of Sundown Group was collected from Dense Camp Creek, approximately 17 km north of the township of Silverton. 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The sample preserves evidence for at least three deformations: 1) bedding parallel S1 defined by biotite and sillimanite, 2) isoclinal folding and development of a composite S1/S2 defined by sillimanite and biotite, and 3) upright to inclined folding (F3) and spaced cleavage development.","SAMPLING_FEATURE_NAME":"NSWSJAF0175","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS620620","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Broken Hill Region","REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-31.7335300444,"LONG_GDA94":141.24859695,"ELEV_M_AHD":null,"ACCURACY_M":10,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2017-08-08","SAMPLE_ORIGINATOR":"Waltenberg, K.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"71968","AGE_REF":"Kositcin, N., Fitzherbert, J.A., Main, P.T., Waltenberg, K., 2018. 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Record, 2018/50, 63p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.11636/Record.2018.050","AGE_ENTRY_DATE":"2019-10-23","AGE_LAST_UPDATED":"2020-11-02"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14853","geometry":{"type":"Point","coordinates":[140.04956602,-32.80303898]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14853,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9678084","IGSN":"10.60494/mn53-vk79","SAMPLENO":9678084,"SAMPLE_ID":"NT21WH041","AGE_MA":459.6,"AGE_MA_UNCERTAINTY":15.9,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.86,"NUMBER_OF_ANALYSES":45,"CALCULATION_TYPE":"isochron","GEOLOGICAL_EVENT":"mineralisation","ISOTOPIC_SYSTEM":"Rb/Sr","ISOTOPIC_RATIO":"87Rb/86Sr and 87Sr/86Sr","MINERAL":"White mica","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: RESOlution 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 8900 series","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"mineralisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"initial 87Sr/86Sr ratio = 0.684 +/- 0.027","AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metasomatic rock","LITHOLOGY":"vein","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"borehole specimen","SAMPLE_DESC":"Hong et al. (2023): Massive white mica and quartz alteration associated with K-feldspar-chalcopyrite veins that cut a plagioclase-phyric diorite. 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(2023): Aplite-clast breccia dominantly cemented by quartz and white mica. Other_ID is the Geological Survey of South Australia sample number, searchable in SARIG.","SAMPLING_FEATURE_NAME":"NTDD002","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH868295","BOREHOLE_TOP_DEPTH_M":134.65,"BOREHOLE_BASE_DEPTH_M":134.85,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-32.8017795,"LONG_GDA94":140.0470342,"ELEV_M_AHD":280,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Geological Survey of South Australia","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75783","AGE_REF":"Hong, W., Fabris, A., Wise, T., Collins, A.S., Gilbert, S., Selby, D., Curtis, S., Reid, A.J., 2023. 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Economic Geology, 118(6), 1291-1318.","AGE_PUBLICATION_LINKS":"https://doi.org/10.5382/econgeo.5012","AGE_ENTRY_DATE":"2024-07-12","AGE_LAST_UPDATED":"2024-09-27"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14762","geometry":{"type":"Point","coordinates":[140.0470342,-32.8017795]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14762,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9678086","IGSN":"10.60494/mmyf-mg87","SAMPLENO":9678086,"SAMPLE_ID":"NT21WH026","AGE_MA":449.7,"AGE_MA_UNCERTAINTY":5.3,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.88,"NUMBER_OF_ANALYSES":44,"CALCULATION_TYPE":"isochron","GEOLOGICAL_EVENT":"hydrothermal alteration","ISOTOPIC_SYSTEM":"Rb/Sr","ISOTOPIC_RATIO":"87Rb/86Sr and 87Sr/86Sr","MINERAL":"White mica","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: RESOlution 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 8900 series","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"Hydrothermal alteration or thermal disturbance","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"initial 87Sr/86Sr ratio = 0.7027 +/- 0.0060","AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metasomatic rock","LITHOLOGY":"vein quartz","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"borehole specimen","SAMPLE_DESC":"Hong et al. (2023): Biotite-phyric dyke overprinted by moderate to intense white mica-quartz-magnetite-pyrite alteration. Other_ID is the Geological Survey of South Australia sample number, searchable in SARIG.","SAMPLING_FEATURE_NAME":"NTDD002","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH868295","BOREHOLE_TOP_DEPTH_M":259.3,"BOREHOLE_BASE_DEPTH_M":259.7,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-32.8017795,"LONG_GDA94":140.0470342,"ELEV_M_AHD":280,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Geological Survey of South Australia","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75783","AGE_REF":"Hong, W., Fabris, A., Wise, T., Collins, A.S., Gilbert, S., Selby, D., Curtis, S., Reid, A.J., 2023. Metallogenic setting and temporal evolution of porphyry Cu-Mo mineralization and alteration in the Delamerian Orogen, South Australia: Insights from zircon U-Pb, molybdenite Re-Os, and in situ white mica Rb-Sr geochronology. Economic Geology, 118(6), 1291-1318.","AGE_PUBLICATION_LINKS":"https://doi.org/10.5382/econgeo.5012","AGE_ENTRY_DATE":"2024-07-12","AGE_LAST_UPDATED":"2024-09-27"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14786","geometry":{"type":"Point","coordinates":[140.0470342,-32.8017795]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14786,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9678087","IGSN":"10.60494/as76-8w08","SAMPLENO":9678087,"SAMPLE_ID":"NT21WH027","AGE_MA":476.4,"AGE_MA_UNCERTAINTY":2.5,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.95,"NUMBER_OF_ANALYSES":14,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: RESOlution 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7900","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"magmatic emplacement","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"14/30 analyses used","AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granodiorite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"borehole specimen","SAMPLE_DESC":"Hong et al. (2023): Grey granodiorite with equigranular texture. Other_ID is the Geological Survey of South Australia sample number, searchable in SARIG.","SAMPLING_FEATURE_NAME":"NTDD002","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH868295","BOREHOLE_TOP_DEPTH_M":283,"BOREHOLE_BASE_DEPTH_M":284,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":"Netley Hill","STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-32.8017795,"LONG_GDA94":140.0470342,"ELEV_M_AHD":280,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Geological Survey of South Australia","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75783","AGE_REF":"Hong, W., Fabris, A., Wise, T., Collins, A.S., Gilbert, S., Selby, D., Curtis, S., Reid, A.J., 2023. Metallogenic setting and temporal evolution of porphyry Cu-Mo mineralization and alteration in the Delamerian Orogen, South Australia: Insights from zircon U-Pb, molybdenite Re-Os, and in situ white mica Rb-Sr geochronology. Economic Geology, 118(6), 1291-1318.","AGE_PUBLICATION_LINKS":"https://doi.org/10.5382/econgeo.5012","AGE_ENTRY_DATE":"2024-07-12","AGE_LAST_UPDATED":"2024-12-09"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15246","geometry":{"type":"Point","coordinates":[137.0497797,-30.7314834]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15246,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034221","IGSN":"10.60494/c37e-1458","SAMPLENO":11034221,"SAMPLE_ID":"R2117350","AGE_MA":1633,"AGE_MA_UNCERTAINTY":48,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":2,"NUMBER_OF_ANALYSES":18,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"cooling","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Apatite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"post magmatic cooling","OTHER_AGE_INTERPRETED_FROM_SOURCE":"Concordia line: 1644 +/- 87 Ma (MSWD 1.04)","AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":5603,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU5603","STRAT_UNIT_NAME":"Donington Suite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Donington Suite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"GSSA rock database: Drill core from 664.4-707.7 m: Granite to granodiorite gneiss, megacrystic; hypersthene granodiorite to charnockite; quartz gabbronorite; dykes of hornblende and alkali-feldspar granite and metadolerite. I-type.","SAMPLING_FEATURE_NAME":"AS10D04","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH885846","BOREHOLE_TOP_DEPTH_M":668,"BOREHOLE_BASE_DEPTH_M":669,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-30.7314834,"LONG_GDA94":137.0497797,"ELEV_M_AHD":100,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2015-03-23","SAMPLE_ORIGINATOR":"Hall, J.W.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"74364","AGE_REF":"Hall, J.W., Glorie, S., Reid, A.J., Collins, A.S., Jourdan, F., Danisik, M., Evans, N., 2018. Thermal history of the northern Olympic Domain, Gawler Craton; correlations between thermochronometric data and mineralising systems. Gondwana Research, 56, 90-104.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.gr.2018.01.001","AGE_ENTRY_DATE":"2025-10-29","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14868","geometry":{"type":"Point","coordinates":[141.43430864,-37.4379381]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14868,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9678099","IGSN":"10.60494/60sk-yh34","SAMPLENO":9678099,"SAMPLE_ID":"GC3 G603","AGE_MA":493,"AGE_MA_UNCERTAINTY":8,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":0.98,"NUMBER_OF_ANALYSES":11,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"Magmatic crystallisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Fifteen analyses had MSWD = 2.3, so four older analyses (520-507 Ma) excluded as possible inheritance.","AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":29549,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU29549","STRAT_UNIT_NAME":"Wando Tonalite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Wando Tonalite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"tonalite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Ireland et al. (2002), Turner et al. (2022): Sampled at Boundary Creek, Wando Vale area. Strongly foliated biotite-hornblende tonalite with fabric correlated to S2 of adjacent schist. Medium-grained with foliation defined by biotite and lesser hornblende and epidote, and by flattened quartz grains and moderately aligned plagioclase. Accessory, magnetite, titanite and allanite. Microgranitoid enclaves are common, containing biotite and hornblende, and displaying the gneissic foliation. This tonalite truncates both bedding and S1, it was emplaced between D1 and D2. Metamorphism peaked at D2 in this area (Gray et al., 2002).","SAMPLING_FEATURE_NAME":"GC3 G603","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS923490","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"VIC","COUNTRY":"AUS","LAT_GDA94":-37.4379381035,"LONG_GDA94":141.4343086417,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":"Boundary Creek, Wando Vale area.","SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Gibson, G.M.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"50065","AGE_REF":"Ireland, T.R., Morand, V.J., Gibson, G.M., 2002. Results of some recent SHRIMP U-Pb zircon dating of rocks from the Glenelg Zone of western Victoria. Geological Survey of Victoria Technical Record, 2002/2, 23p.","AGE_PUBLICATION_LINKS":"http://earthresources.efirst.com.au/product.asp?pID=754&cID=37&c=75443","AGE_ENTRY_DATE":"2024-07-12","AGE_LAST_UPDATED":"2024-09-27"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14845","geometry":{"type":"Point","coordinates":[141.50686948,-37.50326844]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14845,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9678100","IGSN":"10.60494/e51v-ez58","SAMPLENO":9678100,"SAMPLE_ID":"GC4 G604","AGE_MA":491,"AGE_MA_UNCERTAINTY":8,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":0.75,"NUMBER_OF_ANALYSES":11,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"Magmatic crystallisation age. Rock is undeformed (post-D2), so age provides younger limit to Delamerian deformation in this area.","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Fifteen analyses yielded MSWD = 3.1; three pre-520 Ma analyses plus one at ~564 Ma with high common Pb were excluded.","AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":37251,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU37251","STRAT_UNIT_NAME":"Loftus Creek Granodiorite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Loftus Creek Granodiorite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granodiorite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Ireland et al. (2002), Turner et al. (2022): Sampled near the W boundary of the Loftus Creek Granodiorite, in a gully E of Corea Creek, in the Wando Vale area. Medium- to coarse-grained unfoliated biotite granodiorite containing quartz, plagioclase, alkali feldspar, dark brown biotite, hornblende, and accessory magnetite and titanite. Mafic microgranitoid enclaves nearby. Late-stage, undeformed (post-compressional) pluton, which should be post-D2 and therefore slightly younger than the Wando Tonalite to the W.","SAMPLING_FEATURE_NAME":"GC4 G604","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS923491","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"VIC","COUNTRY":"AUS","LAT_GDA94":-37.5032684393,"LONG_GDA94":141.506869482,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":"Gully east of Corea Creek, Wando Vale area. Sample is from near the western boundary of the pluton.","SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Gibson, G.M.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"50065","AGE_REF":"Ireland, T.R., Morand, V.J., Gibson, G.M., 2002. Results of some recent SHRIMP U-Pb zircon dating of rocks from the Glenelg Zone of western Victoria. Geological Survey of Victoria Technical Record, 2002/2, 23p.","AGE_PUBLICATION_LINKS":"http://earthresources.efirst.com.au/product.asp?pID=754&cID=37&c=75443","AGE_ENTRY_DATE":"2024-07-12","AGE_LAST_UPDATED":"2024-09-27"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14884","geometry":{"type":"Point","coordinates":[141.50686948,-37.50326844]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14884,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9678100","IGSN":"10.60494/e51v-ez58","SAMPLENO":9678100,"SAMPLE_ID":"GC4 G604","AGE_MA":486,"AGE_MA_UNCERTAINTY":3,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":2.1,"NUMBER_OF_ANALYSES":22,"CALCULATION_TYPE":"concordia (Ludwig)","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/235U and 206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"Magmatic crystallisation age.","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Samples of Ireland et al. (2002) reanalysed with newer standards.","AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":37251,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU37251","STRAT_UNIT_NAME":"Loftus Creek Granodiorite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Loftus Creek I-type Granodiorite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granodiorite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Ireland et al. (2002), Turner et al. (2022): Sampled near the W boundary of the Loftus Creek Granodiorite, in a gully E of Corea Creek, in the Wando Vale area. Medium- to coarse-grained unfoliated biotite granodiorite containing quartz, plagioclase, alkali feldspar, dark brown biotite, hornblende, and accessory magnetite and titanite. Mafic microgranitoid enclaves nearby. Late-stage, undeformed (post-compressional) pluton, which should be post-D2 and therefore slightly younger than the Wando Tonalite to the W.","SAMPLING_FEATURE_NAME":"GC4 G604","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS923491","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"VIC","COUNTRY":"AUS","LAT_GDA94":-37.5032684393,"LONG_GDA94":141.506869482,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":"Gully east of Corea Creek, Wando Vale area. Sample is from near the western boundary of the pluton.","SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Gibson, G.M.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75785","AGE_REF":"Turner, S., Ireland, T., Foden, J., Belousova, E., Worner, G., Keeman, J., 2022. A comparison of granite genesis in the Adelaide Fold Belt and Glenelg River Complex using U-Pb, Hf and O isotopes in zircon. Journal of Petrology, 63(11), egac102.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1093/petrology/egac102","AGE_ENTRY_DATE":"2024-07-12","AGE_LAST_UPDATED":"2024-09-27"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14811","geometry":{"type":"Point","coordinates":[141.86781859,-37.29115198]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14811,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9678101","IGSN":"10.60494/21p7-pb38","SAMPLENO":9678101,"SAMPLE_ID":"GC5","AGE_MA":536.2,"AGE_MA_UNCERTAINTY":17.5,"AGE_CONFIDENCE_LEVEL":"1 standard deviation","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"single analysis","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"Not explicitly interpreted by Ireland et al. (2002): Youngest single pre-500 Ma analysis with common 206Pb < 1%, interpreted as a maximum age for deposition of the sedimentary protolith to this sillimanite-bearing paragneiss.","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":7400,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU7400","STRAT_UNIT_NAME":"Glenelg River Metamorphic Complex","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"quartzofeldspathic gneiss","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metasedimentary siliciclastic rock","LITHOLOGY":"paragneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Ireland et al. (2002): Grey, homogeneous medium-grained quartzofeldspathic gneiss with a fabric, and minor inclusions of darker material in it. It is a sillimanite-zone metasedimentary gneiss, derived from a quartz-feldspar greywacke. This rock is intruded by pegmatite sheets with little or no foliation.","SAMPLING_FEATURE_NAME":"GC5","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS923492","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"VIC","COUNTRY":"AUS","LAT_GDA94":-37.2911519848,"LONG_GDA94":141.8678185882,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":"Yarramyljup Creek, 800 m N of Yarramyljup Road bridge.","SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Gibson, G.M.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"50065","AGE_REF":"Ireland, T.R., Morand, V.J., Gibson, G.M., 2002. Results of some recent SHRIMP U-Pb zircon dating of rocks from the Glenelg Zone of western Victoria. Geological Survey of Victoria Technical Record, 2002/2, 23p.","AGE_PUBLICATION_LINKS":"http://earthresources.efirst.com.au/product.asp?pID=754&cID=37&c=75443","AGE_ENTRY_DATE":"2024-07-12","AGE_LAST_UPDATED":"2024-09-27"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14686","geometry":{"type":"Point","coordinates":[142.78241,-30.225]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14686,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677802","IGSN":"10.60494/j2j5-2n77","SAMPLENO":9677802,"SAMPLE_ID":"YAN-070","AGE_MA":555,"AGE_MA_UNCERTAINTY":14,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":null,"NUMBER_OF_ANALYSES":1,"CALCULATION_TYPE":"single analysis","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7700","LABORATORY_NAME":"University of Newcastle, Australia","AGE_INTERPRETED_FROM_SOURCE":"maximum depositional age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"35 analyses lie between ca 1300 and 550 Ma. A single grain provides this MDA for YAN-070.","AGE_SOURCE":"MinView/Original publication","PROJECT":null,"STRATNO":73418,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU73418","STRAT_UNIT_NAME":"Yancannia Formation","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Yancannia Formation","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metamorphic rock","LITHOLOGY":"metasedimentary rock","MODE_OF_OCCURRENCE":"bed","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Wong et al 2018 paraphrased: \"The Yancannia Formation consists of well-sorted, cleaved metamudstone with lesser amounts of metasiltstone and minor occurrences of metasandstone. Based on the fine-grained turbiditic sediments and the occurrence of slaty detritus, the interpreted depositional environment is an outer continental shelf setting, with a distal sediment source from the Delamerian Orogen. YAN-070 is a well-sorted, bright-yellow quartz-rich metasandstone. Zircon grains are typically euhedral, with elongate prisms and pyramidal terminations. Rare subhedral and anhedral grains also exist. Lengths are 50-200 um, with aspect ratios between 2:1 and 3:1. Zircon grains are commonly a translucent light yellow-brown, but some are purple. Small opaque inclusions are common. Cathodoluminescence imagery shows oscillatory zonation is common.\"","SAMPLING_FEATURE_NAME":"YAN-070","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS922805","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Thomson Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-30.225,"LONG_GDA94":142.78241,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Wong, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73177","AGE_REF":"Wong, S.C.T., Collins, W.J., Hack, A.C., Huang, H.-Q., 2018. Provenance and structure of the Yancannia Formation, southern Thomson Orogen: implications for the tectono-stratigraphic evolution of the Cambro-Ordovician western Tasmanides. Australian Journal of Earth Sciences, 65(7-8), 1097-1121.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099.2018.1464062","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14843","geometry":{"type":"Point","coordinates":[138.92562662,-33.67769767]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14843,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9678106","IGSN":"10.60494/tyvk-dq75","SAMPLENO":9678106,"SAMPLE_ID":"R1662960","AGE_MA":794,"AGE_MA_UNCERTAINTY":4,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.1,"NUMBER_OF_ANALYSES":54,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"Magmatic crystallisation age, derived by combining datasets from subsamples R1662960A and R1662960B (for which no point of difference was specified).","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Sample R1662960A yielded 40 analyses, 4 of which were affected by Pb loss, mean age of 792 +/- 6 Ma from the remaining 36 (MSWD = 1.2). Sample R1662960B yielded 23 analyses, 5 of which were affected by Pb loss, mean age of 797 +/- 5 Ma from the remaining 18 (MSWD = 0.75). The combined population of 54 magmatic analyses has an mean age of 794 +/- 4 Ma (MSWD = 1.1).","AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"unnamed felsic intrusive porphyry at Burra","UNIT_NAME_SOURCE":"unnamed felsic porphyry intruding the Kooringa Member of the Skillogalee Dolomite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"porphyry","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Preiss et al. (2009): Mineralisation at Burra resulted from hydrothermal alteration associated with intrusion of a felsic porphyry and associated volcanism (Drexel & McCallum 1986; Preiss & Drexel 1993). The unnamed porphyry was known from the early mining phase as a number of lenses in the original open cut, which were progressively exposed during the latest phase of mining. Until recently, the age of mineralisation has been considered to postdate folding of the host sedimentary rocks because of the cross-cutting nature of the alteration zone in steeply dipping rocks. The very near-surface environment implied by the agglomerate suggested alteration around a volcanic neck, and hence significant exhumation of the thick sedimentary pile of the Adelaide Geosyncline after the Delamerian Orogeny. A mid to late Palaeozoic age of mineralisation was therefore inferred. It was only when porphyry samples collected during the most recent mining were dated as being of Neoproterozoic age that the true timing of the primary mineralisation became evident (Drexel 2008). Two samples of the unnamed intrusive felsic porphyry, R1662960A and B, both yielded abundant zircons [NB: Preiss et al. (2009) did not report any point of difference between the two dated samples (which are co-located and co-labelled), so they are here treated as a single sample, R1662960]. Zircon grains from both samples are euhedral to subhedral, tabular to needle shaped and transparent, many with small inclusions of ?apatite and, more rarely, opaque species, possibly sulfide. Under CL the grains show oscillatory zonation typical of igneous zircons, which is consistent with the euhedral unmodified crystal habit of many of the grains. Zircons in both samples are interpreted as a single population of igneous crystals formed during crystallisation of the porphyry.","SAMPLING_FEATURE_NAME":"R1662960","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS923497","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Stuart Shelf","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-33.6776976705,"LONG_GDA94":138.9256266248,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Preiss, W.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"66522","AGE_REF":"Preiss, W.V., Drexel, J.F., Reid, A.J., 2009. Definition and age of the Kooringa Member of the Skillogalee Dolomite: host for Neoproterozoic (c. 790 Ma) porphyry-related copper mineralisation at Burra. MESA Journal, 55, 19-33.","AGE_PUBLICATION_LINKS":"https://pid.sarig.sa.gov.au/document/2018d040356","AGE_ENTRY_DATE":"2024-07-12","AGE_LAST_UPDATED":"2024-09-27"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.4259","geometry":{"type":"Point","coordinates":[141.24859695,-31.73353004]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":4259,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU2676607","IGSN":"10273/AU2676607","SAMPLENO":2676607,"SAMPLE_ID":"NSWSJAF0175.01A","AGE_MA":1556,"AGE_MA_UNCERTAINTY":33,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.4,"NUMBER_OF_ANALYSES":9,"CALCULATION_TYPE":"upper concordia intercept","GEOLOGICAL_EVENT":"metamorphism","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/235U and 206Pb/238U","MINERAL":"Zircon","MOUNT_ID":"GA6360","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Geoscience Australia","AGE_INTERPRETED_FROM_SOURCE":"Age of metamorphism","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"Inserted from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 23 October 2019","PROJECT":null,"STRATNO":17531,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU17531","STRAT_UNIT_NAME":"Sundown Group","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metasedimentary siliciclastic rock","LITHOLOGY":"psammite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"This sample of Sundown Group was collected from Dense Camp Creek, approximately 17 km north of the township of Silverton. The sample is a sillimanite-rich psammitic horizon with a pervasive S2 foliation that appears to record earlier deformation fabrics than the overlying Paragon Group east of the sample location. The lithology shows evidence of extensive partial melting, with peritectic garnet-bearing leucosomes developed, and some muscovite-rich retrogression associated with a nearby shear zone (200 m away). The sample preserves evidence for at least three deformations: 1) bedding parallel S1 defined by biotite and sillimanite, 2) isoclinal folding and development of a composite S1/S2 defined by sillimanite and biotite, and 3) upright to inclined folding (F3) and spaced cleavage development.","SAMPLING_FEATURE_NAME":"NSWSJAF0175","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS620620","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Broken Hill Region","REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-31.7335300444,"LONG_GDA94":141.24859695,"ELEV_M_AHD":null,"ACCURACY_M":10,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2017-08-08","SAMPLE_ORIGINATOR":"Waltenberg, K.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"71968","AGE_REF":"Kositcin, N., Fitzherbert, J.A., Main, P.T., Waltenberg, K., 2018. New SHRIMP U-Pb zircon provenance and in situ monazite metamorphic ages from the Mount Robe Sub-block, Broken Hill, New South Wales: July 2015-June 2017. Geoscience Australia. Record, 2018/50, 63p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.11636/Record.2018.050","AGE_ENTRY_DATE":"2019-10-23","AGE_LAST_UPDATED":"2020-11-02"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.1658","geometry":{"type":"Point","coordinates":[130.55862655,-14.14312023]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":1658,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1929994","IGSN":"10273/AU1929994","SAMPLENO":1929994,"SAMPLE_ID":"2005089504","AGE_MA":1862,"AGE_MA_UNCERTAINTY":2,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.3,"NUMBER_OF_ANALYSES":51,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"Z4814","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP RG","LABORATORY_NAME":null,"AGE_INTERPRETED_FROM_SOURCE":"maximum depositional age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"NTGS STRIKE and Original Reference","PROJECT":null,"STRATNO":3134,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU3134","STRAT_UNIT_NAME":"Burrell Creek Formation","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Burrell Creek Formation","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"medium-coarse grained siliciclastic rock","LITHOLOGY":"conglomerate","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Matrix-supported cobble conglomerate Sample of the former Noltenius Formation.","SAMPLING_FEATURE_NAME":"2005089504","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS435427","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Litchfield Region","REGION_NAME_SOURCE":null,"STATE":"NT","COUNTRY":"AUS","LAT_GDA94":-14.1431202317,"LONG_GDA94":130.5586265482,"ELEV_M_AHD":-44,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":"Chilling Creek","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Worden, K.E.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"64956","AGE_REF":"Worden, K.E., Carson, C.J., Close, D.F., Donnellan, N., Scrimgeour, I.R., 2008. Summary of results. Joint NTGS-GA geochronology: Tanami Region, Arunta Region, Pine Creek Orogen and Halls Creek Orogen correlatives, January 2005-March 2007. Northern Territory Geological Survey Record, 2008-003, 180p.","AGE_PUBLICATION_LINKS":"https://geoscience.nt.gov.au/gemis/ntgsjspui/handle/1/82446","AGE_ENTRY_DATE":"2019-07-25","AGE_LAST_UPDATED":"2020-11-02"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.9483","geometry":{"type":"Point","coordinates":[141.40612051,-36.94522481]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":9483,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU7533501","IGSN":"10273/AU7533501","SAMPLENO":7533501,"SAMPLE_ID":"4695","AGE_MA":589,"AGE_MA_UNCERTAINTY":14,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"metamorphism","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP I","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"not recorded","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"Original publication","PROJECT":"Isotopic Atlas of Australia (EFTF)","STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"biotite gneiss","UNIT_NAME_SOURCE":"biotite gneiss","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"high grade metamorphic rock","LITHOLOGY":"migmatite","MODE_OF_OCCURRENCE":"intrusion","SAMPLE_TYPE":"core","SAMPLE_DESC":"Pegmatoidal segregation dominated by anhedral quartz and K spar","SAMPLING_FEATURE_NAME":"VIMP12","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH654485","BOREHOLE_TOP_DEPTH_M":107.6,"BOREHOLE_BASE_DEPTH_M":128.6,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":"Glenelg","STATE":"VIC","COUNTRY":"AUS","LAT_GDA94":-36.9452248133,"LONG_GDA94":141.406120514,"ELEV_M_AHD":165,"ACCURACY_M":10,"LOCATION_METHOD":"1:250 000 map","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Waltenberg, K.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73118","AGE_REF":"Maher, S., Moore, D.H., Crawford, A.J., Twyford, R., Fanning, C.M., 1997. Victorian Initiative for Minerals and Petroleum: Test drilling of the southern margin of the Murray Basin. VIMP Report, 52, 275p.","AGE_PUBLICATION_LINKS":"https://gsv.vic.gov.au/searchAssistant/document.php?q=parent_id:28600","AGE_ENTRY_DATE":"2021-04-27","AGE_LAST_UPDATED":"2021-10-12"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.7337","geometry":{"type":"Point","coordinates":[124.98043,-30.2739]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":7337,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU6661160","IGSN":"10273/AU6661160","SAMPLENO":6661160,"SAMPLE_ID":"182473.1","AGE_MA":1193,"AGE_MA_UNCERTAINTY":5,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.1,"NUMBER_OF_ANALYSES":14,"CALCULATION_TYPE":"concordia (Ludwig)","GEOLOGICAL_EVENT":"metamorphism","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"age of metamorphism","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSWA","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"migmatitic gneiss, Big Red prospect, Nornalup Zone","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"high grade metamorphic rock","LITHOLOGY":"gneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"SEEMORE_182473.1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS648921","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Eucla Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-30.2739,"LONG_GDA94":124.98043,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Kirkland, CL, Wingate, MTD and Spaggiari, CV 2012, 182473: migmatitic gneiss, Big Red prospect; Geochronology Record 1050: Geological Survey of Western Australia, 6p.","AGE_PUBLICATION_LINKS":"http://geodownloads.dmp.wa.gov.au/downloads/Geochron/pdfs/182473.1.pdf","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2020-11-16"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.12725","geometry":{"type":"Point","coordinates":[145.56071798,-42.05978359]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":12725,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1471984","IGSN":"10273/AU1471984","SAMPLENO":1471984,"SAMPLE_ID":"R7162TR","AGE_MA":420.5,"AGE_MA_UNCERTAINTY":6,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"apparent age","GEOLOGICAL_EVENT":"deformation","ISOTOPIC_SYSTEM":"K/Ar","ISOTOPIC_RATIO":"40K/40Ar","MINERAL":"Whole rock","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"K-Ar split analysis: K: AAS or AES and Ar: isotope-dilution mass spectrometry","ANALYTICAL_COLLECTION_SYSTEM":"K-Ar split analysis: K: AAS or AES and Ar: isotope-dilution mass spectrometry","LABORATORY_NAME":"Geological and Nuclear Sciences (GNS) Science, New Zealand","AGE_INTERPRETED_FROM_SOURCE":"not reported","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"K40 abundance = 0.01167%","AGE_SOURCE":"MRT/Original Publication","PROJECT":null,"STRATNO":18756,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU18756","STRAT_UNIT_NAME":"Tyndall Group","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Slate, Tyndall Group, Mt Lyell Co. Mill","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metasedimentary rock","LITHOLOGY":"slate","MODE_OF_OCCURRENCE":"bed","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"slate","SAMPLING_FEATURE_NAME":"R7162TR","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS136514","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Dundas Element","GEOLOGICAL_REGION_NAME":"Dundas Region","REGION_NAME_SOURCE":null,"STATE":"TAS","COUNTRY":"AUS","LAT_GDA94":-42.0597835943,"LONG_GDA94":145.5607179827,"ELEV_M_AHD":220,"ACCURACY_M":100,"LOCATION_METHOD":"1:100 000 map","LOCATION_DESC":"Mt. Lyell Co. Mill","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Adams, C.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"39892","AGE_REF":"Adams, C.J., Black, L.P., Corbett, K.D., Green, G.R., 1985. Reconnaissance isotopic studies bearing on the tectonothermal history of Early Palaeozoic and Late Proterozoic sequences in Western Tasmania. Australian Journal of Earth Sciences, 32(1), 7-36.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120098508729309","AGE_ENTRY_DATE":"2022-03-23","AGE_LAST_UPDATED":"2022-11-18"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.12726","geometry":{"type":"Point","coordinates":[145.56667346,-41.90224655]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":12726,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1471985","IGSN":"10273/AU1471985","SAMPLENO":1471985,"SAMPLE_ID":"R7477TR","AGE_MA":455.9,"AGE_MA_UNCERTAINTY":6,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"apparent age","GEOLOGICAL_EVENT":"deformation","ISOTOPIC_SYSTEM":"K/Ar","ISOTOPIC_RATIO":"40K/40Ar","MINERAL":"Whole rock","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"K-Ar split analysis: K: AAS or AES and Ar: isotope-dilution mass spectrometry","ANALYTICAL_COLLECTION_SYSTEM":"K-Ar split analysis: K: AAS or AES and Ar: isotope-dilution mass spectrometry","LABORATORY_NAME":"Geological and Nuclear Sciences (GNS) Science, New Zealand","AGE_INTERPRETED_FROM_SOURCE":"not reported","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"K40 abundance = 0.01167%","AGE_SOURCE":"MRT/Original Publication","PROJECT":null,"STRATNO":28865,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU28865","STRAT_UNIT_NAME":"Newton Creek Sandstone Member","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Slate, Newton Creek Sandstone, Newton Creek","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metasedimentary rock","LITHOLOGY":"slate","MODE_OF_OCCURRENCE":"bed","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"slate","SAMPLING_FEATURE_NAME":"R7477TR","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS136515","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Dundas Element","GEOLOGICAL_REGION_NAME":"Dundas Region","REGION_NAME_SOURCE":null,"STATE":"TAS","COUNTRY":"AUS","LAT_GDA94":-41.9022465529,"LONG_GDA94":145.5666734646,"ELEV_M_AHD":525,"ACCURACY_M":100,"LOCATION_METHOD":"1:100 000 map","LOCATION_DESC":"Newton Creek","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Adams, C.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"39892","AGE_REF":"Adams, C.J., Black, L.P., Corbett, K.D., Green, G.R., 1985. Reconnaissance isotopic studies bearing on the tectonothermal history of Early Palaeozoic and Late Proterozoic sequences in Western Tasmania. Australian Journal of Earth Sciences, 32(1), 7-36.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120098508729309","AGE_ENTRY_DATE":"2022-03-23","AGE_LAST_UPDATED":"2022-11-18"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15284","geometry":{"type":"Point","coordinates":[137.10882486,-31.03651392]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15284,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034222","IGSN":"10.60494/af91-j521","SAMPLENO":11034222,"SAMPLE_ID":"R2131356","AGE_MA":1811,"AGE_MA_UNCERTAINTY":26,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.2,"NUMBER_OF_ANALYSES":40,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"cooling","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Apatite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"post magmatic cooling","OTHER_AGE_INTERPRETED_FROM_SOURCE":"Concordia line: 1812 +/- 60 Ma (MSWD 1.5)","AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":5603,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU5603","STRAT_UNIT_NAME":"Donington Suite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Donington Suite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"basic intrusive rock","LITHOLOGY":"gabbro","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"GSSA rock database: Sample is a granite to granodiorite gneiss, megacrystic; hypersthene granodiorite to charnockite; quartz gabbronorite; dykes of hornblende and alkali-feldspar granite and metadolerite. I-type.","SAMPLING_FEATURE_NAME":"ASD 1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH620256","BOREHOLE_TOP_DEPTH_M":961.45,"BOREHOLE_BASE_DEPTH_M":962.4,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-31.0365139169,"LONG_GDA94":137.1088248567,"ELEV_M_AHD":137,"ACCURACY_M":200,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2015-05-15","SAMPLE_ORIGINATOR":"Hall, J.W.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"74364","AGE_REF":"Hall, J.W., Glorie, S., Reid, A.J., Collins, A.S., Jourdan, F., Danisik, M., Evans, N., 2018. Thermal history of the northern Olympic Domain, Gawler Craton; correlations between thermochronometric data and mineralising systems. Gondwana Research, 56, 90-104.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.gr.2018.01.001","AGE_ENTRY_DATE":"2025-10-29","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15253","geometry":{"type":"Point","coordinates":[132.7398113,-30.5870293]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15253,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034224","IGSN":"10.60494/qzmc-zb73","SAMPLENO":11034224,"SAMPLE_ID":"3813601","AGE_MA":1707,"AGE_MA_UNCERTAINTY":18,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":1.3,"NUMBER_OF_ANALYSES":10,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"GS21101-15, mount 1","ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: RESOlution 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 8900 series","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":"Inheritance: 2440 +/- 21 Ma (MSWD = 2.0, n = 8)","AGE_REMARK_FROM_SOURCE":"It is likely that this sample was derived from the partial melting of a c. 2440 Ma source.","AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":79271,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU79271","STRAT_UNIT_NAME":"Pinbong Suite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Peter Pan Supersuite (Pinbong Suite)","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Brown et al 2022: Sample 3813601 is a medium- to coarse-grained weakly foliated granite with a hypidiomorphic texture.  The foliation is defined by the weak alignment of quartz, plagioclase, Kfeldspar, biotite, and muscovite. Texturally late chlorite after biotite also occurs in very minor abundance. Medium- to coarse-grained plagioclase and K-feldspar phenocrysts are subhedral, slightly rounded, and show minor sericitic alteration. Plagioclase shows albitic twinning and hosts inclusions of quartz and biotite. Comparatively fine-grained quartz is near equant and texturally interstitial between plagioclase and K-feldspar phenocrysts. Weakly foliated fine-grained biotite is subhedral to anhedral and often occurs with muscovite of the same textural character. There are also occurrences of comparatively coarse- grained muscovite porphyroblasts with subhedral to anhedral grain shapes, consistent with partial breakdown. Very fine-grained epidote/clinozoisite and sulphide are present as trace minerals, associated with biotite. Epidote is pale yellow to straw brown and appears to replace biotite. Mineral proportions: quartz (~35 vol%), plagioclase (~25 vol%), K-feldspar (~20 vol%), biotite (~10 vol%), muscovite (~5 vol%), minor phases (~5 vol%). ","SAMPLING_FEATURE_NAME":"BARTON 1 DDH 1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH882301","BOREHOLE_TOP_DEPTH_M":10.77,"BOREHOLE_BASE_DEPTH_M":11.77,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-30.5870293,"LONG_GDA94":132.7398113,"ELEV_M_AHD":160,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2021-08-02","SAMPLE_ORIGINATOR":"Reid, A.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"74363","AGE_REF":"Brown, D., Pawley, M., Williams, M., Reid, A., Jagodzinski, E., 2022. Zircon LA-ICP-MS geochronological and geochemical results from the central-western Gawler Craton. Geological Survey of South Australia. Report Book, 2022/00008, 139p.","AGE_PUBLICATION_LINKS":"https://pid.sarig.sa.gov.au/document/2022d112405","AGE_ENTRY_DATE":"2025-10-29","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15156","geometry":{"type":"Point","coordinates":[136.5051089,-28.7287443]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15156,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034292","IGSN":null,"SAMPLENO":11034292,"SAMPLE_ID":"R2509352","AGE_MA":1494,"AGE_MA_UNCERTAINTY":6,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.49,"NUMBER_OF_ANALYSES":13,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"hydrothermal alteration","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Titanite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7900","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"alteration","OTHER_AGE_INTERPRETED_FROM_SOURCE":"207Pb/206Pb weighted mean age 1503 +/- 12 Ma. MSWD = 2.05 n = 13","AGE_REMARK_FROM_SOURCE":"Titanite analyses from a cross-cutting ilmenite-rich vein in this sample. 206Pb/238U age is preferred.","AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":14973,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU14973","STRAT_UNIT_NAME":"Peake Metamorphics","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metasomatic rock","LITHOLOGY":"vein","MODE_OF_OCCURRENCE":"vein","SAMPLE_TYPE":"core","SAMPLE_DESC":"Bockmann et al 2023: Ilm-cpx-cal-ep-ttn vein. Sample R2509352 is a calc-silicate metasomatite taken from drillhole DC09D01 at 515.4 m depth. The sample is a strongly altered host rock crosscut by a ~3 cm-wide vein dominated by ilmenite. The host rock contains clinopyroxene, actinolite, epidote, plagioclase, hornblende, quartz and titanite, and the crosscutting vein comprises ilmenite, clinopyroxene, actinolite, epidote, calcite and titanite. Ilmenite and clinopyroxene are the most dominant minerals within the vein, forming grains up to 1.5 cm that are associated with calcite, actinolite and euhedral titanite grains that are up to 3 mm. Epidote (up to 500 um) commonly forms on the edges of ilmenite and titanite within the vein. Epidote is most abundant at the contact between the host rock and the crosscutting vein. There are also variations in the abundance of clinopyroxene, amphibole and plagioclase throughout the host rock. Actinolite is the dominant amphibole in the host rock, but hornblende is present in some domains. Actinolite inclusions occur within clinopyroxene, but actinolite and hornblende are also observed pseudomorphing clinopyroxene, suggesting multiple generations of amphibole are present. The variations in mineralogy in the host rock appear to be spatially controlled but do not seem to correspond to distance from the vein and therefore may reflect protolithic variation. Titanite is also disseminated throughout the host rock, forming smaller and more anhedral grains that are generally at 100-300 um.","SAMPLING_FEATURE_NAME":"DC09D01","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH934759","BOREHOLE_TOP_DEPTH_M":515.4,"BOREHOLE_BASE_DEPTH_M":515.5,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-28.7287443,"LONG_GDA94":136.5051089,"ELEV_M_AHD":68,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2018-06-13","SAMPLE_ORIGINATOR":"Bockmann, M.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"76114","AGE_REF":"Bockmann, M.J., Payne, J.L., Hand, M., Morrissey, L.J., Belperio, A.P., 2023, Linking the Gawler Craton and Mount Isa Province through hydrothermal systems in the Peake and Denison Domain, northeastern Gawler Craton. Geoscience Frontiers, 14/5.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.gsf.2023.101596","AGE_ENTRY_DATE":"2025-10-24","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15656","geometry":{"type":"Point","coordinates":[131.8546914,-31.3527713]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15656,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034234","IGSN":"10.60494/b0by-y002","SAMPLENO":11034234,"SAMPLE_ID":"R2017952","AGE_MA":1718,"AGE_MA_UNCERTAINTY":15,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":0.03,"NUMBER_OF_ANALYSES":3,"CALCULATION_TYPE":"upper concordia intercept","GEOLOGICAL_EVENT":"metamorphism","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"AR-43","ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"metamorphic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":"weighted mean metamorphic age = 1728 +/- 25 Ma (MSWD = 0.24, n = 3).","AGE_REMARK_FROM_SOURCE":"This upper intercept age is the preferred age for zircon phase 2 (grey rims); the early metamorphic modification of this sample. The corresponding lower intercept = -1290 +/- 3000 Ma.","AGE_SOURCE":"GSSA/Original publication","PROJECT":null,"STRATNO":35382,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU35382","STRAT_UNIT_NAME":"Tunkillia Suite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Tunkillia Suite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"basic intrusive rock","LITHOLOGY":"gabbro","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"GSSA drillhole database: Metagabbro, minor mt, py, qtz, ap; weakly foliated. K-feldspar, biotite, feldspar, hornblende, quartz sericite. Sericitised plagioclase showing tartan twinning. Mosaic quartz, hornblende and feldspar. Pleochroic biotite. Trace opaques.","SAMPLING_FEATURE_NAME":"COL 43D","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH889318","BOREHOLE_TOP_DEPTH_M":53.6,"BOREHOLE_BASE_DEPTH_M":54,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-31.3527713,"LONG_GDA94":131.8546914,"ELEV_M_AHD":65,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2013-09-24","SAMPLE_ORIGINATOR":"Reid, A.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"71318","AGE_REF":"Reid, A., 2015. Zircon U-Pb geochronology from selected Paleoproterozoic igneous rocks of the Gawler Craton by laser ablation-inductively coupled plasma mass spectrometry. Geological Survey of South Australia. Report Book, 2015/00025, 62p.","AGE_PUBLICATION_LINKS":"https://pid.sarig.sa.gov.au/document/d20011044","AGE_ENTRY_DATE":"2025-11-18","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15240","geometry":{"type":"Point","coordinates":[137.7026824,-34.6273184]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15240,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034235","IGSN":"10.60494/rsjj-yc73","SAMPLENO":11034235,"SAMPLE_ID":"2049214","AGE_MA":1580.2,"AGE_MA_UNCERTAINTY":0.4,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.1,"NUMBER_OF_ANALYSES":6,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"isotope dilution: chemical abrasion and isotope dilution","ANALYTICAL_COLLECTION_SYSTEM":"TIMS: GV Isoprobe-T","LABORATORY_NAME":"Boise State University","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":39162,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU39162","STRAT_UNIT_NAME":"Curramulka Gabbronorite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Curramulka Gabbronorite, Hiltaba Suite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"basic intrusive rock","LITHOLOGY":"gabbronorite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Jagodzinski et al 2021: The sample is a gabbronorite composed of plagioclase, clinopyroxene and orthopyroxene + quartz + orthoclase, apatite and opaque oxides. ","SAMPLING_FEATURE_NAME":"CUR D 2","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH892354","BOREHOLE_TOP_DEPTH_M":55,"BOREHOLE_BASE_DEPTH_M":58.2,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-34.6273184,"LONG_GDA94":137.7026824,"ELEV_M_AHD":134,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Crowley, J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73651","AGE_REF":"Jagodzinski, E.A., Crowley, J.L., Reid, A.J., Wade, C.E., Bockmann, M.J., 2021. High-precision CA-TIMS dating of the Hiltaba Suite, Gawler Craton. Geological Survey of South Australia. Report Book, 2021/00002, 57p.","AGE_PUBLICATION_LINKS":"https://pid.sarig.sa.gov.au/document/d21034143","AGE_ENTRY_DATE":"2025-10-29","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15241","geometry":{"type":"Point","coordinates":[137.7609954,-34.6133014]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15241,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034236","IGSN":"10.60494/bnye-yj84","SAMPLENO":11034236,"SAMPLE_ID":"2665664","AGE_MA":1737,"AGE_MA_UNCERTAINTY":28,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.34,"NUMBER_OF_ANALYSES":14,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: GeoLas 193nm ArF laser ablation system","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: MC-ICPMS","LABORATORY_NAME":"China Metallurgical Geology Bureau","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Further work on the alteration mineralogy of this rock such as via dating of apatite would be useful to determine the timing of alteration.","AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":39174,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU39174","STRAT_UNIT_NAME":"Moonta Porphyry Member","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Moonta Porphyry Member","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granodiorite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Reid et al 2020: Sample 2665664 is from an interval of medium- to fine-grained granodiorite. The thin section is dominated by dynamically recrystallised feldspar and quartz with chlorite-altered biotite aggregates and opaque species. The quartz-feldspar matrix forms a broad preferred mineral orientation suggesting recrystallisation during deformation. Plagioclase is the dominant feldspar and extensively sericite altered. Lesser K-feldspar is present. Red colouration of the feldspars suggests microcrystalline hematite alteration. There are medium-grained opaque species comprising an estimated 5% of the rock volume and occurring interstitially to the quartz-feldspar matrix. In reflected light these are mostly magnetite grains that are partly or nearly completely oxidised to hematite. The magnetite appears to be an alteration mineral rather than a primary magmatic mineral due to the occurrence of inclusions of quartz in some of the magnetite grains and instances of irregular magnetite apparently wrapping quartz. Drillhole CUR D 5 was drilled on a gravity anomaly aiming to intersect iron oxide-copper-gold mineralisation (Roche et al., 1986). The drillhole intersected a biotite-amphibole-bearing meta-igneous rock of broadly diorite to granodiorite composition. The more felsic portion of the drillhole includes foliated biotite-bearing quartz-plagioclase granodiorite.","SAMPLING_FEATURE_NAME":"CUR D 5","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH892355","BOREHOLE_TOP_DEPTH_M":78.5,"BOREHOLE_BASE_DEPTH_M":78.9,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-34.6133014,"LONG_GDA94":137.7609954,"ELEV_M_AHD":136,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2018-10-03","SAMPLE_ORIGINATOR":"Reid, A.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73092","AGE_REF":"Reid, A., Zhao, Y., Wang, T., Zhao, X., 2020. Reconnaissance zircon U-Pb geochronology of the southeastern Olympic Cu-Au Province, South Australia. Geological Survey of South Australia. Report Book, 2020/00015, 69p.","AGE_PUBLICATION_LINKS":"https://pid.sarig.sa.gov.au/document/2020d032465","AGE_ENTRY_DATE":"2025-10-29","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15208","geometry":{"type":"Point","coordinates":[134.62043316,-29.21313691]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15208,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034239","IGSN":"10.60494/bmh0-x266","SAMPLENO":11034239,"SAMPLE_ID":"R2131367","AGE_MA":1413,"AGE_MA_UNCERTAINTY":17,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.03,"NUMBER_OF_ANALYSES":38,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"cooling","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Apatite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"cooling through 550-350* C","OTHER_AGE_INTERPRETED_FROM_SOURCE":"Concordia intercept: 1402 +/- 33 Ma (MSWD 1.4)","AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":28826,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU28826","STRAT_UNIT_NAME":"Mulgathing Complex","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"gabbro, drillhole DD87LR 3","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"basic intrusive rock","LITHOLOGY":"gabbro","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"GSSA drillhole database: Gabbro, amphibolite/granulite facies, pegmatite.","SAMPLING_FEATURE_NAME":"DD87LR 3","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH536028","BOREHOLE_TOP_DEPTH_M":92.98,"BOREHOLE_BASE_DEPTH_M":94.8,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-29.2131369086,"LONG_GDA94":134.6204331566,"ELEV_M_AHD":183,"ACCURACY_M":20,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2015-05-18","SAMPLE_ORIGINATOR":"Hall, J.W.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73434","AGE_REF":"Hall, J.W., Glorie, S., Reid, A.J., Boone, S.C., Collins, A.S., Gleadow, A., 2018. An apatite U-Pb thermal history map for the northern Gawler Craton, South Australia. Geoscience Frontiers, 9(5), 1293-1308.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.gsf.2017.12.010","AGE_ENTRY_DATE":"2025-10-29","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14844","geometry":{"type":"Point","coordinates":[138.92353546,-33.67495741]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14844,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9678107","IGSN":"10.60494/vtg9-7c42","SAMPLENO":9678107,"SAMPLE_ID":"R1675131","AGE_MA":787,"AGE_MA_UNCERTAINTY":6,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.5,"NUMBER_OF_ANALYSES":29,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"Maximum depositional age for volcaniclastic siltstone of the lower Kooringa Member.","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"A total of 53 analyses, with the remainder showing a range of ages from c. 1575 Ma to c. 2483 Ma, with minor age clusters at c. 1720, 1820, 2200 and 2400 Ma.","AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":77228,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU77228","STRAT_UNIT_NAME":"Kooringa Member","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Kooringa Member of the Skillogallee Dolomite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"fine grained siliciclastic rock","LITHOLOGY":"siltstone","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Preiss et al. (2009): Sample R1675131, a dark grey, thinly bedded siltstone containing volcanic feldspar phenocrysts, was taken from unit 2 of Drexel (2008), near the base of the Kooringa Member. Zircons are of two types. The first are a distinct population of tabular, colourless, doubly terminating and generally euhedral grains, typically containing acicular inclusions or voids and opaque to colourless, oval inclusions. Some grains have cavities or tubes consistent with rapid crystallisation in a volcanic environment. The second population is more variable, and ranges from round to subround and dark brown to clear grains. Some of these grains show surface pitting, indicative of surface transport.","SAMPLING_FEATURE_NAME":"R1675131","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS923498","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Stuart Shelf","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-33.6749574088,"LONG_GDA94":138.9235354585,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":"Burra Mine haul road, Unit 2 of Drexel (2008)","SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Preiss, W.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"66522","AGE_REF":"Preiss, W.V., Drexel, J.F., Reid, A.J., 2009. Definition and age of the Kooringa Member of the Skillogalee Dolomite: host for Neoproterozoic (c. 790 Ma) porphyry-related copper mineralisation at Burra. MESA Journal, 55, 19-33.","AGE_PUBLICATION_LINKS":"https://pid.sarig.sa.gov.au/document/2018d040356","AGE_ENTRY_DATE":"2024-07-12","AGE_LAST_UPDATED":"2024-09-27"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14754","geometry":{"type":"Point","coordinates":[138.92325613,-33.67521893]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14754,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9678108","IGSN":"10.60494/phk6-8q14","SAMPLENO":9678108,"SAMPLE_ID":"R1675132","AGE_MA":838,"AGE_MA_UNCERTAINTY":13,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":null,"NUMBER_OF_ANALYSES":1,"CALCULATION_TYPE":"single analysis","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"Maximum depositional age for volcaniclastic siltstone of the lower Kooringa Member.","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"The remaining 49 analyses plot on or near concordia, and give ages that range from c. 3050 to c. 900 Ma.","AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":77228,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU77228","STRAT_UNIT_NAME":"Kooringa Member","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Kooringa Member of the Skillogallee Dolomite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"fine grained siliciclastic rock","LITHOLOGY":"siltstone","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Preiss et al. (2009): Sample R1675132, a siltstone from the lower Kooringa Member, contains a zircon population dominated by angular to subangular grains, a number of which show surface pitting indicative of abrasion during sedimentary transport. The CL images reveal a range of oscillatory zoned magmatic grains to more irregularly zoned, possibly metamorphic, grains, as well as a number of grains with distinct core-rim structuring.","SAMPLING_FEATURE_NAME":"R1675132","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS923499","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Stuart Shelf","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-33.6752189252,"LONG_GDA94":138.9232561266,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Preiss, W.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"66522","AGE_REF":"Preiss, W.V., Drexel, J.F., Reid, A.J., 2009. Definition and age of the Kooringa Member of the Skillogalee Dolomite: host for Neoproterozoic (c. 790 Ma) porphyry-related copper mineralisation at Burra. 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Sparse brown biotite and colourless muscovite surrounded by predominantly large clean quartz grains, microcline (weak twins are shown by clay alteration) and minor plagioclase with partial replacement by brown clay/sericite.","SAMPLING_FEATURE_NAME":"MGD45","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH520334","BOREHOLE_TOP_DEPTH_M":667.05,"BOREHOLE_BASE_DEPTH_M":667.3,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-31.251144,"LONG_GDA94":137.252148,"ELEV_M_AHD":92,"ACCURACY_M":25,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2011-03-15","SAMPLE_ORIGINATOR":"Reid, A.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"69033","AGE_REF":"Reid, A., Fabris, A., 2012. 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Large quartz and brown sericite-replaced plagioclase grains with green chlorite, minor opaques and slight earthy red hematite staining.","SAMPLING_FEATURE_NAME":"MGD45","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH520334","BOREHOLE_TOP_DEPTH_M":738.1,"BOREHOLE_BASE_DEPTH_M":738.8,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-31.251144,"LONG_GDA94":137.252148,"ELEV_M_AHD":92,"ACCURACY_M":25,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2011-03-15","SAMPLE_ORIGINATOR":"Reid, A.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"69033","AGE_REF":"Reid, A., Fabris, A., 2012. Age of host rocks at the Chianti Cu-Au Prospect, eastern Gawler Craton from zircon U-Pb geochronology. Geological Survey of South Australia. 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Original comment: 'This is the emplacement age of the (now markedly deformed) Porongurups granite. The granite post-dates the oblique thrusting of the Central Domain over the Northern Domain.' source=ozchron-2011-08","AGE_SOURCE":"Updated from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 20 September 2019","PROJECT":null,"STRATNO":33041,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU33041","STRAT_UNIT_NAME":"Porongurup Suite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Porongurup Suite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metamorphosed acid igneous rock","LITHOLOGY":"gneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"augen bearing orthogneiss, x-cut by AFP8","SAMPLING_FEATURE_NAME":"87010009","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS135135","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Albany-Fraser Orogen","GEOLOGICAL_REGION_NAME":"Bremer Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-34.68212844,"LONG_GDA94":117.9681944947,"ELEV_M_AHD":258,"ACCURACY_M":100,"LOCATION_METHOD":"1:100 000 map","LOCATION_DESC":"Central Domain Albany Mobile Belt. Serena Park,Porongurup Hills 50km N of Albany","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Black, L.P.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":null,"AGE_PUBLICATION_LINKS":null,"AGE_ENTRY_DATE":"2011-08-25","AGE_LAST_UPDATED":"2020-11-02"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.12447","geometry":{"type":"Point","coordinates":[145.543397,-42.02444087]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":12447,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1471990","IGSN":"10273/AU1471990","SAMPLENO":1471990,"SAMPLE_ID":"BMR9/78","AGE_MA":470.112882,"AGE_MA_UNCERTAINTY":8,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"apparent age","GEOLOGICAL_EVENT":"cooling","ISOTOPIC_SYSTEM":"K/Ar","ISOTOPIC_RATIO":"40K/40Ar","MINERAL":"Hornblende","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"K-Ar split analysis: K: AAS or AES and Ar: isotope-dilution mass spectrometry","ANALYTICAL_COLLECTION_SYSTEM":"K-Ar split analysis: K: AAS or AES and Ar: isotope-dilution mass spectrometry","LABORATORY_NAME":"Australian Mineral Development Laboratories, South Australia","AGE_INTERPRETED_FROM_SOURCE":"affected by hydrothermal alteration","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Adjusted for constant of Steiger & Jager (1977). 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Reconnaissance isotopic studies bearing on the tectonothermal history of Early Palaeozoic and Late Proterozoic sequences in Western Tasmania. 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Chronology and tectonic framework of turbidite-hosted gold deposits in the Western Lachlan Fold Belt, Victoria: 40Ar/39Ar results. Ore Geology Reviews, 13, 229-250.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/S0169-1368(97)00020-6","AGE_ENTRY_DATE":"2021-04-27","AGE_LAST_UPDATED":"2021-10-12"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15997","geometry":{"type":"Point","coordinates":[140.04861,-20.77586]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15997,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11086502","IGSN":"10.60494/g9hh-nk03","SAMPLENO":11086502,"SAMPLE_ID":"250-7","AGE_MA":1523,"AGE_MA_UNCERTAINTY":16,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":1.2,"NUMBER_OF_ANALYSES":200,"CALCULATION_TYPE":"lower concordia intercept","GEOLOGICAL_EVENT":"mineralisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"238U/206Pb and 207Pb/206Pb","MINERAL":"Apatite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: RESOlution 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7900","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"age of apatite from the largely unmineralised core of the deposit","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"mineralisation","LITHOLOGY":"unknown","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"apatite associated with the quartz +/- apatite +/- microcline assemblage that makes up the core of the deposit in the deep (> 450 m depth) south-east portion of the deposit","SAMPLING_FEATURE_NAME":"MCUG250","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH1042008","BOREHOLE_TOP_DEPTH_M":0,"BOREHOLE_BASE_DEPTH_M":0,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-20.77586,"LONG_GDA94":140.04861,"ELEV_M_AHD":20,"ACCURACY_M":999,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Cave, B.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75889","AGE_REF":"Cave, B., Healy, M., Overall, D., Lilly, R., 2024. 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Journal of Geochemical Exploration, 256, 107350, 20p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.gexplo.2023.107350","AGE_ENTRY_DATE":"2026-05-08","AGE_LAST_UPDATED":"2026-06-09"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15684","geometry":{"type":"Point","coordinates":[133.85113765,-31.31117124]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15684,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1574204","IGSN":"10273/AU1574204","SAMPLENO":1574204,"SAMPLE_ID":"R444813","AGE_MA":1613,"AGE_MA_UNCERTAINTY":4,"AGE_CONFIDENCE_LEVEL":"1 standard error","AGE_MSWD":1.3,"NUMBER_OF_ANALYSES":19,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Unknown","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation, intrusive","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/Original publication","PROJECT":null,"STRATNO":24502,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU24502","STRAT_UNIT_NAME":"St Peter Suite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granodiorite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"deformed granite] Sample is a deformed granodiorite (Ferris, 2001 - UTas thesis; RB2001/00004)","SAMPLING_FEATURE_NAME":"R444813","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS131731","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Gawler Region","REGION_NAME_SOURCE":null,"STATE":"ZOCA","COUNTRY":"AUS","LAT_GDA94":-31.311171236,"LONG_GDA94":133.8511376492,"ELEV_M_AHD":93,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-05-02","SAMPLE_ORIGINATOR":"Ferris, G.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"63079; 76141","AGE_REF":"Ferris, G.M., 2001, CHILDARA bedrock drilling program. 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Unpublished Masters of Exploration Geology thesis, University of Tasmania, Hobart.","AGE_PUBLICATION_LINKS":"https://eprints.utas.edu.au/19759/; https://pid.sarig.sa.gov.au/document/2019d078524","AGE_ENTRY_DATE":"2025-11-18","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15145","geometry":{"type":"Point","coordinates":[140.53519706,-31.7233029]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15145,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034304","IGSN":"10.60494/tny2-2883","SAMPLENO":11034304,"SAMPLE_ID":"1830932","AGE_MA":1596,"AGE_MA_UNCERTAINTY":19,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":0.2,"NUMBER_OF_ANALYSES":5,"CALCULATION_TYPE":"concordia (Ludwig)","GEOLOGICAL_EVENT":"hydrothermal alteration","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"238U/206Pb and 207Pb/206Pb","MINERAL":"Monazite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP IIe","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"hydrothermal alteration age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"This age is derived from n = 5/7 analyses on a single large monazite grain","AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":20135,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU20135","STRAT_UNIT_NAME":"Willyama Supergroup","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metasedimentary rock","LITHOLOGY":"metasedimentary rock","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"altered metasiltstone","SAMPLING_FEATURE_NAME":"KND 1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH938949","BOREHOLE_TOP_DEPTH_M":265.64,"BOREHOLE_BASE_DEPTH_M":265.65,"GEOLOGICAL_PROVINCE":"Curnamona Province","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-31.7233029043,"LONG_GDA94":140.5351970647,"ELEV_M_AHD":0,"ACCURACY_M":10,"LOCATION_METHOD":"published report, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Reid, A.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"70308","AGE_REF":"Reid, A.J., Gregory, C., 2012, Project PGC01-10: U-Pb SHRIMP geochronology of hydrothermal allanite, monazite and titanite from the Kalkaroo Cu-Au deposit, Curnamona Province, South Australia. IN Reid, A. and Jagodzinski, L. (eds) PACE Geochronology: Results of collaborative geochronology projects 2011-12. 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IN Reid, A. and Jagodzinski, L. (eds) PACE Geochronology: Results of collaborative geochronology projects 2011-12. South Australian Department of Primary Industry and Resources, Report Book, 2012/00012.","AGE_PUBLICATION_LINKS":"https://pid.sarig.sa.gov.au/document/d20010577","AGE_ENTRY_DATE":"2025-10-24","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15158","geometry":{"type":"Point","coordinates":[132.06510848,-31.62834323]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15158,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034307","IGSN":"10.60494/qsm0-6b63","SAMPLENO":11034307,"SAMPLE_ID":"2115491","AGE_MA":1579.4,"AGE_MA_UNCERTAINTY":1.6,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.6,"NUMBER_OF_ANALYSES":3,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"isotope dilution: chemical abrasion and isotope dilution","ANALYTICAL_COLLECTION_SYSTEM":"TIMS: GV Isoprobe-T","LABORATORY_NAME":"Boise State University","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":26613,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU26613","STRAT_UNIT_NAME":"Hiltaba Suite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Jagodzinski et al 2021: Sample 2115491 is a foliated granite. The sample has medium- to coarse-grained biotite intergrown with quartz and feldspar. While much of the rock shows a typical granitic granoblastic texture, there are numerous zones that have narrow bands of dynamically recrystallised quartz and feldspar. These deformation zones appear to truncate the biotite-defined mineral alignment within the rock and some crystals of K-feldspar appear to also be partly recrystallised, with the microcline twining showing kinking.","SAMPLING_FEATURE_NAME":"NRD 13","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH938952","BOREHOLE_TOP_DEPTH_M":94.5,"BOREHOLE_BASE_DEPTH_M":94.7,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-31.6283432308,"LONG_GDA94":132.0651084847,"ELEV_M_AHD":0,"ACCURACY_M":10,"LOCATION_METHOD":"published report, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Crowley, J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73651","AGE_REF":"Jagodzinski, E.A., Crowley, J.L., Reid, A.J., Wade, C.E., Bockmann, M.J., 2021. High-precision CA-TIMS dating of the Hiltaba Suite, Gawler Craton. 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Report Book, 2021/00002, 57p.","AGE_PUBLICATION_LINKS":"https://pid.sarig.sa.gov.au/document/d21034143","AGE_ENTRY_DATE":"2025-10-24","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15152","geometry":{"type":"Point","coordinates":[137.8165,-34.647]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15152,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034308","IGSN":"10.60494/98x8-4670","SAMPLENO":11034308,"SAMPLE_ID":"RDD003c","AGE_MA":1549,"AGE_MA_UNCERTAINTY":9,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":22,"CALCULATION_TYPE":"mixture-modelled component","GEOLOGICAL_EVENT":"metamorphism","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Monazite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7900","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"metamorphic age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"The monazite KDE plot indicates the age population is bimodal, suggesting two age populations are present.","AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"foliated metamorphic rock","LITHOLOGY":"gneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"borehole specimen","SAMPLE_DESC":"Bockmann et al 2022: Qz-kfs-pl-bt gneiss. 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Euhedral biotite defines a well-developed foliation.","SAMPLING_FEATURE_NAME":"RDD003","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH938953","BOREHOLE_TOP_DEPTH_M":408.6,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-34.647,"LONG_GDA94":137.8165,"ELEV_M_AHD":0,"ACCURACY_M":10,"LOCATION_METHOD":"published report, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Bockmann, M.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73644","AGE_REF":"Bockmann, M.J., Hand, M., Morrissey, L.J., Payne, J.L., Hasterok, D., Teale, G., Conor, C., 2022. Punctuated geochronology within a sustained high-temperature thermal regime in the southeastern Gawler Craton. Lithos, 430-431, 106860, 18p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.lithos.2022.106860","AGE_ENTRY_DATE":"2025-10-24","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15286","geometry":{"type":"Point","coordinates":[137.252148,-31.251144]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15286,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034254","IGSN":"10.60494/cq1c-sw38","SAMPLENO":11034254,"SAMPLE_ID":"R1831650","AGE_MA":1878,"AGE_MA_UNCERTAINTY":21,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.8,"NUMBER_OF_ANALYSES":47,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"cooling","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Apatite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"post magmatic cooling","OTHER_AGE_INTERPRETED_FROM_SOURCE":"Concordia line: 1892 +/- 41 Ma (MSWD 2.2)","AGE_REMARK_FROM_SOURCE":"Samples 1831646 and 1831650 have been combined to produce weighted mean 206Pb/238U age of 1878 +/- 21Ma (MSWD=1.8) from 47 grains.","AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":5603,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU5603","STRAT_UNIT_NAME":"Donington Suite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Donington Suite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"monzogranite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"GSSA rock database: Altered coarse-grained monzogranite. Large quartz and brown sericite-replaced plagioclase grains with green chlorite, minor opaques and slight earthy red hematite staining.","SAMPLING_FEATURE_NAME":"MGD45","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH520334","BOREHOLE_TOP_DEPTH_M":738.1,"BOREHOLE_BASE_DEPTH_M":738.8,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-31.251144,"LONG_GDA94":137.252148,"ELEV_M_AHD":92,"ACCURACY_M":25,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2011-03-15","SAMPLE_ORIGINATOR":"Reid, A.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"74364","AGE_REF":"Hall, J.W., Glorie, S., Reid, A.J., Collins, A.S., Jourdan, F., Danisik, M., Evans, N., 2018. Thermal history of the northern Olympic Domain, Gawler Craton; correlations between thermochronometric data and mineralising systems. Gondwana Research, 56, 90-104.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.gr.2018.01.001","AGE_ENTRY_DATE":"2025-10-29","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15282","geometry":{"type":"Point","coordinates":[137.25156829,-31.26767404]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15282,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034255","IGSN":"10.60494/va2t-tf31","SAMPLENO":11034255,"SAMPLE_ID":"1842343","AGE_MA":1858,"AGE_MA_UNCERTAINTY":22,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.02,"NUMBER_OF_ANALYSES":8,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"1842343","ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":5603,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU5603","STRAT_UNIT_NAME":"Donington Suite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Donington Suite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"tonalite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Reid & Fabris 2012: This sample is an altered granite that is apparently intruded by both altered dolerite and dacite within drill hole [MGD44]. The sample was taken in order to determine if this granite is intrusive into the sediment or whether it may be potentially a large boulder, associated with the conglomerate towards the base of the drill hole. This sample is a tonalite being rich in plagioclase (45%), with subordinate quartz (25%) and altered biotite (25%), and minor opaque species, possibly magnetite (<1%). The sample also contains accessory zircon and apatite and along with alteration-related rutile and chlorite (<2%). Both plagioclase and biotite are extensively altered. The plagioclase is coarse grained and almost entirely replaced by fine sericite. Where the lamellar twinning is preserved, the composition indicated by the extinction angle of the twins is approximately An40. A number of the plagioclase crystals have sericite clots formed at ~25° to the orientation of the twins, suggesting the sericite is replacing former inclusions of K-feldspar, present as microperthite in the precursor plagioclase. The quartz is medium-grained. The triple junctions between quartz grains and the only minor undulose extinction present in some grains suggests the rock has undergone very little strain. Biotite occurs interstitially to the leucocratic phases in the rock and has a very light green plieochroism and is extensively altered with dark brown and light green patches, possibly related to clays, chlorite and or sericite. Needles of rutile intergrown with the biotite are common.","SAMPLING_FEATURE_NAME":"MGD44","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH569026","BOREHOLE_TOP_DEPTH_M":511.3,"BOREHOLE_BASE_DEPTH_M":511.7,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-31.2676740381,"LONG_GDA94":137.2515682878,"ELEV_M_AHD":99,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2011-08-03","SAMPLE_ORIGINATOR":"Reid, A.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"69033","AGE_REF":"Reid, A., Fabris, A., 2012. Age of host rocks at the Chianti Cu-Au Prospect, eastern Gawler Craton from zircon U-Pb geochronology. Geological Survey of South Australia. Report Book, 2012/00014, 30p.","AGE_PUBLICATION_LINKS":"https://pid.sarig.sa.gov.au/document/d20010579","AGE_ENTRY_DATE":"2025-10-29","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15124","geometry":{"type":"Point","coordinates":[131.96474776,-31.27286756]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15124,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034316","IGSN":"10.60494/bqxe-8705","SAMPLENO":11034316,"SAMPLE_ID":"2115322","AGE_MA":1690,"AGE_MA_UNCERTAINTY":5,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.7,"NUMBER_OF_ANALYSES":13,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"metamorphism","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Monazite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"University of Tasmania","AGE_INTERPRETED_FROM_SOURCE":"metamorphic age phase 2","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Archaean-Palaeoproterozoic rocks","UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"foliated metamorphic rock","LITHOLOGY":"gneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Reid et al 2019: Sample 2115322 is a metapelite from drillhole COL 20 D in the Colona Block of the Fowler Domain. The sample contains garnet, biotite, sillimanite, muscovite, quartz, plagioclase, with minor K-feldspar, magnetite and ilmenite. A foliation is defined by biotite +/- sillimanite and flattened plagioclase-quartz-rich lenses. Zircon, monazite and apatite occur as accessory minerals. Muscovite occurs within the foliation with biotite, and also at a high angle to the main foliation where it partly overgrows biotite. Minor biotite replaces fractured garnet. Garnet porphyroblasts are subidioblastic to idioblastic (<1.5 mm). Large plagioclase grains in plagioclase-quartz-rich lenses commonly contain fine sillimanite and biotite inclusions that are aligned at a high angle to the external foliation. Monazite geochronology and phase equilibria modelling were conducted on this sample.","SAMPLING_FEATURE_NAME":"COL 20D","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH938942","BOREHOLE_TOP_DEPTH_M":47.7,"BOREHOLE_BASE_DEPTH_M":47.85,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-31.2728675649,"LONG_GDA94":131.9647477619,"ELEV_M_AHD":0,"ACCURACY_M":10,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2015-02-11","SAMPLE_ORIGINATOR":"Reid, A.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73649","AGE_REF":"Reid, A.J., Halpin, J.A., Dutch, R.A., 2019. Timing and style of high-temperature metamorphism across the Western Gawler Craton during the Paleo- to Mesoproterozoic. Australian Journal of Earth Sciences, 66(8), 1085-1111.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099.2019.1602565","AGE_ENTRY_DATE":"2025-10-24","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14814","geometry":{"type":"Point","coordinates":[138.99731262,-34.54735954]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14814,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9678118","IGSN":"10.60494/8qbr-jp76","SAMPLENO":9678118,"SAMPLE_ID":"TA","AGE_MA":507,"AGE_MA_UNCERTAINTY":2,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":0.14,"NUMBER_OF_ANALYSES":6,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: Photon Machines 193 nm excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7700","LABORATORY_NAME":"Macquarie University","AGE_INTERPRETED_FROM_SOURCE":"Magmatic crystallisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":17803,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU17803","STRAT_UNIT_NAME":"Tanunda Creek Gneiss","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Tanunda Creek I-type Gneiss","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Strongly foliated granite. Sample not formally identified by Turner et al. (2022), but isotopic data referenced in Foden et al. (2002, J Geol Soc London 159, 557-575), where tabular data refers to Tanunda Creek Gneiss sample 88-TC1. Location data for that sample was extracted from Supplementary Material for Foden et al. (2020) and has been used here.","SAMPLING_FEATURE_NAME":"TA","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS923509","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-34.5473595366,"LONG_GDA94":138.9973126235,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Foden, J.D.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75785","AGE_REF":"Turner, S., Ireland, T., Foden, J., Belousova, E., Worner, G., Keeman, J., 2022. A comparison of granite genesis in the Adelaide Fold Belt and Glenelg River Complex using U-Pb, Hf and O isotopes in zircon. Journal of Petrology, 63(11), egac102.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1093/petrology/egac102","AGE_ENTRY_DATE":"2024-07-12","AGE_LAST_UPDATED":"2024-09-27"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14871","geometry":{"type":"Point","coordinates":[138.99731262,-34.54735954]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14871,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9678118","IGSN":"10.60494/8qbr-jp76","SAMPLENO":9678118,"SAMPLE_ID":"TA","AGE_MA":492,"AGE_MA_UNCERTAINTY":2,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":1.34,"NUMBER_OF_ANALYSES":5,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"metamorphism","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: Photon Machines Analyte198 femto-second laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7700","LABORATORY_NAME":"Macquarie University","AGE_INTERPRETED_FROM_SOURCE":"Metamorphism","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":17803,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU17803","STRAT_UNIT_NAME":"Tanunda Creek Gneiss","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Tanunda Creek I-type Gneiss","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Strongly foliated granite. Sample not formally identified by Turner et al. (2022), but isotopic data referenced in Foden et al. (2002, J Geol Soc London 159, 557-575), where tabular data refers to Tanunda Creek Gneiss sample 88-TC1. Location data for that sample was extracted from Supplementary Material for Foden et al. (2020) and has been used here.","SAMPLING_FEATURE_NAME":"TA","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS923509","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-34.5473595366,"LONG_GDA94":138.9973126235,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Foden, J.D.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75785","AGE_REF":"Turner, S., Ireland, T., Foden, J., Belousova, E., Worner, G., Keeman, J., 2022. A comparison of granite genesis in the Adelaide Fold Belt and Glenelg River Complex using U-Pb, Hf and O isotopes in zircon. Journal of Petrology, 63(11), egac102.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1093/petrology/egac102","AGE_ENTRY_DATE":"2024-07-12","AGE_LAST_UPDATED":"2024-09-27"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14833","geometry":{"type":"Point","coordinates":[139.21154366,-35.10814634]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14833,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9678119","IGSN":"10.60494/3eyq-bn34","SAMPLENO":9678119,"SAMPLE_ID":"MB1","AGE_MA":490,"AGE_MA_UNCERTAINTY":2,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":1.7,"NUMBER_OF_ANALYSES":11,"CALCULATION_TYPE":"concordia (Ludwig)","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: Photon Machines 193 nm excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7700","LABORATORY_NAME":"Macquarie University","AGE_INTERPRETED_FROM_SOURCE":"granite intrusion","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":13536,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU13536","STRAT_UNIT_NAME":"Murray Bridge Granite","INFORMAL_UNIT_NAME":"Murray Bridge A-type granite","UNIT_NAME_SOURCE":"Murray Bridge A-type Granite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Location data difficult to trace from Turner et al. (2022). Assumed to be co-located with sample MB1-2 reported by Foden et al. (2006, The Journal of Geology 114, 189-210).","SAMPLING_FEATURE_NAME":"MB1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS912543","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":"Murray Region","REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-35.1081463424,"LONG_GDA94":139.2115436584,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":"Co-ordinates provided in the paper are wrong, and have been replaced with those from the Foden et al. (2020) supplementary data (\"bcm2 M2\").","SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Foden, J.D.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75785","AGE_REF":"Turner, S., Ireland, T., Foden, J., Belousova, E., Worner, G., Keeman, J., 2022. A comparison of granite genesis in the Adelaide Fold Belt and Glenelg River Complex using U-Pb, Hf and O isotopes in zircon. Journal of Petrology, 63(11), egac102.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1093/petrology/egac102","AGE_ENTRY_DATE":"2024-07-12","AGE_LAST_UPDATED":"2024-09-27"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14913","geometry":{"type":"Point","coordinates":[141.43318501,-37.43911401]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14913,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9678135","IGSN":"10.60494/2ytm-8y77","SAMPLENO":9678135,"SAMPLE_ID":"GC10","AGE_MA":517.3,"AGE_MA_UNCERTAINTY":13.5,"AGE_CONFIDENCE_LEVEL":"1 standard deviation","AGE_MSWD":null,"NUMBER_OF_ANALYSES":1,"CALCULATION_TYPE":"single analysis","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"Not explicitly interpreted by Ireland et al. (2002): Youngest pre-500 Ma single analysis with common 206Pb < 1% and magmatic Th/U, interpreted as a maximum age for deposition of the sedimentary protolith to the psammitic schist.","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":7400,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU7400","STRAT_UNIT_NAME":"Glenelg River Metamorphic Complex","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Psammitic schist hosting Wando Tonalite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metasedimentary siliciclastic rock","LITHOLOGY":"schist","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Ireland et al. (2002): Sampled at Boundary Creek, Wando Vale area, 15 m from the contact with the Wando Tonalite. This sample is a garnet-zone psammitic schist. A similar schist from about 40 m away has mainly quartz, muscovite, red-brown biotite, plagioclase, microcline, with minor opaques, tourmaline, zircon and rutile. Micas are aligned to form a schistosity, while quartz and feldspar form a granoblastic texture. The rock is a metamorphosed\r\nquartz wacke, metamorphosed and deformed by the Delamerian Orogeny.","SAMPLING_FEATURE_NAME":"GC10","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS923557","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":"Lachlan Region","REGION_NAME_SOURCE":null,"STATE":"VIC","COUNTRY":"AUS","LAT_GDA94":-37.4391140089,"LONG_GDA94":141.4331850132,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":"Boundary Creek, Wando Vale area. Sample is 15 m from contact with Wando Tonalite.","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Gibson, G.M.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"50065","AGE_REF":"Ireland, T.R., Morand, V.J., Gibson, G.M., 2002. Results of some recent SHRIMP U-Pb zircon dating of rocks from the Glenelg Zone of western Victoria. 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The Willigam Sandstone Member is therefore older than Bendigonian3.","SAMPLING_FEATURE_NAME":"BUN 4_Mum1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS922795","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-34.825013,"LONG_GDA94":149.840782,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Saeed, A.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75256","AGE_REF":"Glen, R.A., Fitzsimons, I.C.W., Griffin, W.L., Saeed, A., 2017. East Antarctic sources of extensive Lower-Middle Ordovician turbidites in the Lachlan Orogen, southern Tasmanides, eastern Australia. Australian Journal of Earth Sciences, 64(2), 143-224.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099.2017.1273256","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14687","geometry":{"type":"Point","coordinates":[149.872209,-34.829458]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14687,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677792","IGSN":"10.60494/2erb-es87","SAMPLENO":9677792,"SAMPLE_ID":"BUN 8","AGE_MA":506,"AGE_MA_UNCERTAINTY":null,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":null,"NUMBER_OF_ANALYSES":2,"CALCULATION_TYPE":"probability frequency maximum","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"Macquarie University","AGE_INTERPRETED_FROM_SOURCE":"2 youngest grains","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"MinView/Original publication","PROJECT":null,"STRATNO":98,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU98","STRAT_UNIT_NAME":"Adaminaby Group","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Adaminaby Group (below Mummel Chert Member)","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"medium-coarse grained siliciclastic rock","LITHOLOGY":"sandstone","MODE_OF_OCCURRENCE":"bed","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Glen et al 2017: \"BUN8 sandstone bed in the short limb of a small fold below an outcrop of the Mummel Chert Member\"","SAMPLING_FEATURE_NAME":"BUN 8_9","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS922796","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-34.829458,"LONG_GDA94":149.872209,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Saeed, A.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75256","AGE_REF":"Glen, R.A., Fitzsimons, I.C.W., Griffin, W.L., Saeed, A., 2017. East Antarctic sources of extensive Lower-Middle Ordovician turbidites in the Lachlan Orogen, southern Tasmanides, eastern Australia. Australian Journal of Earth Sciences, 64(2), 143-224.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099.2017.1273256","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14712","geometry":{"type":"Point","coordinates":[149.872209,-34.829458]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14712,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677793","IGSN":"10.60494/h6g0-pv24","SAMPLENO":9677793,"SAMPLE_ID":"BUN 9","AGE_MA":525,"AGE_MA_UNCERTAINTY":null,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":null,"NUMBER_OF_ANALYSES":3,"CALCULATION_TYPE":"probability frequency maximum","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"Macquarie University","AGE_INTERPRETED_FROM_SOURCE":"spread of 3 youngest grains","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"A spread of 3 grains from ca 520 to 540 Ma, producing the peak age of 525 Ma.","AGE_SOURCE":"MinView/Original publication","PROJECT":null,"STRATNO":98,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU98","STRAT_UNIT_NAME":"Adaminaby Group","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Adaminaby Group (above Mummel Chert Member)","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"medium-coarse grained siliciclastic rock","LITHOLOGY":"sandstone","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Glen et al 2017: BUN9 sampled a sandstone bed above the Mummel Chert Member","SAMPLING_FEATURE_NAME":"BUN 8_9","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS922796","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-34.829458,"LONG_GDA94":149.872209,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Saeed, A.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75256","AGE_REF":"Glen, R.A., Fitzsimons, I.C.W., Griffin, W.L., Saeed, A., 2017. East Antarctic sources of extensive Lower-Middle Ordovician turbidites in the Lachlan Orogen, southern Tasmanides, eastern Australia. Australian Journal of Earth Sciences, 64(2), 143-224.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099.2017.1273256","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15138","geometry":{"type":"Point","coordinates":[131.96474776,-31.27286756]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15138,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034316","IGSN":"10.60494/bqxe-8705","SAMPLENO":11034316,"SAMPLE_ID":"2115322","AGE_MA":1713,"AGE_MA_UNCERTAINTY":4,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.6,"NUMBER_OF_ANALYSES":19,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"metamorphism","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Monazite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"University of Tasmania","AGE_INTERPRETED_FROM_SOURCE":"metamorphic age phase 1","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Archaean-Palaeoproterozoic rocks","UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"foliated metamorphic rock","LITHOLOGY":"gneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Reid et al 2019: Sample 2115322 is a metapelite from drillhole COL 20 D in the Colona Block of the Fowler Domain. The sample contains garnet, biotite, sillimanite, muscovite, quartz, plagioclase, with minor K-feldspar, magnetite and ilmenite. A foliation is defined by biotite +/- sillimanite and flattened plagioclase-quartz-rich lenses. Zircon, monazite and apatite occur as accessory minerals. Muscovite occurs within the foliation with biotite, and also at a high angle to the main foliation where it partly overgrows biotite. Minor biotite replaces fractured garnet. Garnet porphyroblasts are subidioblastic to idioblastic (<1.5 mm). Large plagioclase grains in plagioclase-quartz-rich lenses commonly contain fine sillimanite and biotite inclusions that are aligned at a high angle to the external foliation. Monazite geochronology and phase equilibria modelling were conducted on this sample.","SAMPLING_FEATURE_NAME":"COL 20D","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH938942","BOREHOLE_TOP_DEPTH_M":47.7,"BOREHOLE_BASE_DEPTH_M":47.85,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-31.2728675649,"LONG_GDA94":131.9647477619,"ELEV_M_AHD":0,"ACCURACY_M":10,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2015-02-11","SAMPLE_ORIGINATOR":"Reid, A.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73649","AGE_REF":"Reid, A.J., Halpin, J.A., Dutch, R.A., 2019. Timing and style of high-temperature metamorphism across the Western Gawler Craton during the Paleo- to Mesoproterozoic. Australian Journal of Earth Sciences, 66(8), 1085-1111.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099.2019.1602565","AGE_ENTRY_DATE":"2025-10-24","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.7058","geometry":{"type":"Point","coordinates":[115.68296,-23.5319]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":7058,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU6661135","IGSN":"10273/AU6661135","SAMPLENO":6661135,"SAMPLE_ID":"207259.1","AGE_MA":1513,"AGE_MA_UNCERTAINTY":4,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.1,"NUMBER_OF_ANALYSES":33,"CALCULATION_TYPE":"not reported","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"age of igneous crystallization","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Together with the date of 1500 +/- 3 Ma for a dolerite sill located about 218 km to the southeast (GSWA sample 143445; Wingate et al., 2012), and with geochemical information, this result is evidence that the Edmund Group is intruded by dolerite sills significantly older than the c. 1465 Ma Narimbunna Dolerite.","AGE_SOURCE":"GSWA","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"dolerite sill, Maranoo Well","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"basic intrusive rock","LITHOLOGY":"dolerite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"EDMUND_207259.1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS648896","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Gascoyne Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-23.5319,"LONG_GDA94":115.68296,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Wingate, MTD, Kirkland, CL, Blay, O and Johnson, SP 2013, 207259: dolerite sill, Maranoo Well; Geochronology Record 1123: Geological Survey of Western Australia, 4p.","AGE_PUBLICATION_LINKS":"http://geodownloads.dmp.wa.gov.au/downloads/Geochron/pdfs/207259.1.pdf","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2020-11-16"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15982","geometry":{"type":"Point","coordinates":[143.450319,-18.575578]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15982,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11086376","IGSN":"10.60494/xta2-cn66","SAMPLENO":11086376,"SAMPLE_ID":"GLENROWAN.1","AGE_MA":444.6,"AGE_MA_UNCERTAINTY":10.2,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"not reported","GEOLOGICAL_EVENT":"mineralisation","ISOTOPIC_SYSTEM":"K/Ar","ISOTOPIC_RATIO":"40K/40Ar","MINERAL":"Sericite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"unknown: unknown","ANALYTICAL_COLLECTION_SYSTEM":"unknown: unknown","LABORATORY_NAME":"Unknown","AGE_INTERPRETED_FROM_SOURCE":"Not explicitly stated. Age interpretation is inferred to be mineralisation.","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"unknown","LITHOLOGY":"vein","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"unknown","SAMPLE_DESC":"qtz-sf veins in silky sericite-qtz altered metasediment ","SAMPLING_FEATURE_NAME":"GLENROWAN","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS1041948","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-18.575578,"LONG_GDA94":143.450319,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Morrison, G.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"74075","AGE_REF":"Morrison, G., Mustard, H., Cody, A., Lisitsin, V., Veracruz, J., Beams, S., 2019, Metallogenic study of the Georgetown, Forsayth and Gilberton regions, north Queensland. Unpublished Terrasearch Pty Ltd Report 114062.","AGE_PUBLICATION_LINKS":"https://geoscience.data.qld.gov.au/data/report/cr114062","AGE_ENTRY_DATE":"2026-05-08","AGE_LAST_UPDATED":"2026-06-09"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.16159","geometry":{"type":"Point","coordinates":[144.87731996,-16.33045415]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":16159,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11088633","IGSN":"10.60494/ppkn-qc64","SAMPLENO":11088633,"SAMPLE_ID":"WS15-017","AGE_MA":277,"AGE_MA_UNCERTAINTY":4.8,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.6,"NUMBER_OF_ANALYSES":5,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: GeoLas 193nm ArF laser ablation system","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Varian 820 series","LABORATORY_NAME":"James Cook University","AGE_INTERPRETED_FROM_SOURCE":"not explicitly stated","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Camp dyke","UNIT_NAME_SOURCE":"Camp dyke","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":"dyke","SAMPLE_TYPE":"unknown","SAMPLE_DESC":"Dyke cuts-across all fabrics and is undeformed","SAMPLING_FEATURE_NAME":"WS15-017","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS1083080","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-16.3304541471,"LONG_GDA94":144.8773199601,"ELEV_M_AHD":null,"ACCURACY_M":99,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Poblete Alvarado, J.A.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"76534","AGE_REF":"Poblete, J.A., 2019, Geological characteristics and origin of the Watershed W deposit, North Queensland. PhD Thesis. James Cook University, North Queensland.","AGE_PUBLICATION_LINKS":"https://doi.org/10.25903/5dcb2e4c158d7","AGE_ENTRY_DATE":"2026-06-09","AGE_LAST_UPDATED":"2026-06-09"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14711","geometry":{"type":"Point","coordinates":[142.80133,-30.2068]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14711,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677803","IGSN":"10.60494/31yf-e951","SAMPLENO":9677803,"SAMPLE_ID":"YAN-081","AGE_MA":527,"AGE_MA_UNCERTAINTY":18,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":null,"NUMBER_OF_ANALYSES":1,"CALCULATION_TYPE":"single analysis","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7700","LABORATORY_NAME":"University of Newcastle, Australia","AGE_INTERPRETED_FROM_SOURCE":"maximum depositional age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"33 analyses show a dominant group lies between ca 660-500 Ma. A single grain provides this MDA for YAN-081.","AGE_SOURCE":"MinView/Original publication","PROJECT":null,"STRATNO":73418,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU73418","STRAT_UNIT_NAME":"Yancannia Formation","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Yancannia Formation","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metamorphic rock","LITHOLOGY":"metasedimentary rock","MODE_OF_OCCURRENCE":"bed","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Wong et al 2018 paraphrased \"The Yancannia Formation consists of well-sorted, cleaved metamudstone with lesser amounts of metasiltstone and minor occurrences of metasandstone. Based on the fine-grained turbiditic sediments and the occurrence of slaty detritus, the interpreted depositional environment is an outer continental shelf setting, with a distal sediment source from the Delamerian Orogen. YAN-081 is a foliated, blue-grey, moderately sorted, quartz-mica rich metasandstone. 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Metallogenic setting and temporal evolution of porphyry Cu-Mo mineralization and alteration in the Delamerian Orogen, South Australia: Insights from zircon U-Pb, molybdenite Re-Os, and in situ white mica Rb-Sr geochronology. Economic Geology, 118(6), 1291-1318.","AGE_PUBLICATION_LINKS":"https://doi.org/10.5382/econgeo.5012","AGE_ENTRY_DATE":"2024-07-12","AGE_LAST_UPDATED":"2024-09-27"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15198","geometry":{"type":"Point","coordinates":[132.766283,-30.595862]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15198,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034225","IGSN":"10.60494/37h0-aq73","SAMPLENO":11034225,"SAMPLE_ID":"3813608","AGE_MA":1693,"AGE_MA_UNCERTAINTY":13,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":0.8,"NUMBER_OF_ANALYSES":30,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"GS21101-17, mount 4","ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: RESOlution 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 8900 series","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":"Inheritance: 2430 +/- 27 Ma (MSWD = 1.7, n = 10)","AGE_REMARK_FROM_SOURCE":"This sample was derived from a probable felsic source of the c. 2555-2410 Ma Mulgathing Complex.","AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":79271,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU79271","STRAT_UNIT_NAME":"Pinbong Suite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Peter Pan Supersuite (Pinbong Suite)","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"foliated metamorphic rock","LITHOLOGY":"gneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Brown et al 2022: Sample 3813608 is a porphyritic, medium- to coarse-grained granitic gneiss. Coarse-grained sub-rounded porphyroblasts of perthitic K-feldspar and rarer plagioclase sit within a weak to moderate fabric comprising fine- to medium-grained quartz, biotite, and muscovite. Inclusions of quartz, biotite, and muscovite occur within plagioclase and K-feldspar porphyroblasts. Plagioclase sometimes preserves myrmekitic textures. Foliated quartz is fine- to medium-grained and typically equigranular, although grains are sometimes elongated parallel with the foliation. Biotite is typically subhedral to anhedral and commonly shows fuzzy textures consistent with alteration. The fabric also contains minor fine-grained epidote/clinozoisite which tends to preserve poor grain shapes. The sample contains trace fine-grained sulphide associated with biotite. Mineral proportions: K-feldspar (~35 vol%), quartz (~30 vol%), plagioclase (~15 vol%), biotite (~10 vol%), muscovite (~5 vol%), minor phases (~5 vol%).","SAMPLING_FEATURE_NAME":"Barton 2 DDH 5","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH866076","BOREHOLE_TOP_DEPTH_M":22,"BOREHOLE_BASE_DEPTH_M":23.3,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-30.595862,"LONG_GDA94":132.766283,"ELEV_M_AHD":192,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2021-08-02","SAMPLE_ORIGINATOR":"Reid, A.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"74363","AGE_REF":"Brown, D., Pawley, M., Williams, M., Reid, A., Jagodzinski, E., 2022. Zircon LA-ICP-MS geochronological and geochemical results from the central-western Gawler Craton. Geological Survey of South Australia. Report Book, 2022/00008, 139p.","AGE_PUBLICATION_LINKS":"https://pid.sarig.sa.gov.au/document/2022d112405","AGE_ENTRY_DATE":"2025-10-29","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15273","geometry":{"type":"Point","coordinates":[136.364641,-28.5218696]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15273,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034226","IGSN":"10.60494/vvj0-r576","SAMPLENO":11034226,"SAMPLE_ID":"R2509354","AGE_MA":1469,"AGE_MA_UNCERTAINTY":11,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.12,"NUMBER_OF_ANALYSES":10,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"hydrothermal alteration","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Titanite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7900","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"alteration","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":14973,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU14973","STRAT_UNIT_NAME":"Peake Metamorphics","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"altered pegmatite @ 187.3 m","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous intrusive rock","LITHOLOGY":"pegmatite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Bockmann et al 2023: Ttn-ep-chl altered pegmatite. Sample R2509354 is an altered anorthosite pegmatite taken from drillhole BHP CO LTD - BH/WLE 2 at 187.3 m depth. The pegmatite host is dominated by coarse grained plagioclase (up to 1 cm) and is absent of quartz or other feldspars, suggesting the rock is of mafic composition. The pegmatite is altered by epidote, plagioclase, titanite, calcite, chlorite and anatase. Titanite grains vary in size from 0.1 mm to 1 cm and show variable degrees of alteration to anatase and exsolution of ilmenite along cleavage planes. Epidote generally occurs as small grains (<50 um) that form in clusters, or are intergrown with fine-grained plagioclase, chlorite and calcite. These minerals are overprinted by a set of < 50 um wide veinlets calcite or quartz.","SAMPLING_FEATURE_NAME":"BHP CO LTD  - BH/WLE 2","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH894473","BOREHOLE_TOP_DEPTH_M":187.3,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-28.5218696,"LONG_GDA94":136.364641,"ELEV_M_AHD":53,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2018-06-14","SAMPLE_ORIGINATOR":"Bockmann, M.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"76114","AGE_REF":"Bockmann, M.J., Payne, J.L., Hand, M., Morrissey, L.J., Belperio, A.P., 2023, Linking the Gawler Craton and Mount Isa Province through hydrothermal systems in the Peake and Denison Domain, northeastern Gawler Craton. Geoscience Frontiers, 14/5.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.gsf.2023.101596","AGE_ENTRY_DATE":"2025-10-29","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14912","geometry":{"type":"Point","coordinates":[141.86781859,-37.29115198]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14912,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9678101","IGSN":"10.60494/21p7-pb38","SAMPLENO":9678101,"SAMPLE_ID":"GC5","AGE_MA":501.4,"AGE_MA_UNCERTAINTY":12,"AGE_CONFIDENCE_LEVEL":"1 standard deviation","AGE_MSWD":null,"NUMBER_OF_ANALYSES":1,"CALCULATION_TYPE":"single analysis","GEOLOGICAL_EVENT":"metamorphism","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"Not explicitly interpreted by Ireland et al. (2002): Single analysis with atypically Th/U (~1.7) and low common 206Pb (<1%), possibly recording Delamerian metamorphism. Most other analyses in this prominent cluster around 500 Ma probably represent detrital zircons that have undergone isotopic disturbance during Delamerian-aged metamorphism.","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":7400,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU7400","STRAT_UNIT_NAME":"Glenelg River Metamorphic Complex","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Quartzofeldspathic gneiss","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metasedimentary siliciclastic rock","LITHOLOGY":"paragneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Ireland et al. (2002): Grey, homogeneous medium-grained quartzofeldspathic gneiss with a fabric, and minor inclusions of darker material in it. It is a sillimanite-zone metasedimentary gneiss, derived from a quartz-feldspar greywacke. This rock is intruded by pegmatite sheets with little or no foliation.","SAMPLING_FEATURE_NAME":"GC5","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS923492","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"VIC","COUNTRY":"AUS","LAT_GDA94":-37.2911519848,"LONG_GDA94":141.8678185882,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":"Yarramyljup Creek, 800 m N of Yarramyljup Road bridge.","SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Gibson, G.M.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"50065","AGE_REF":"Ireland, T.R., Morand, V.J., Gibson, G.M., 2002. Results of some recent SHRIMP U-Pb zircon dating of rocks from the Glenelg Zone of western Victoria. Geological Survey of Victoria Technical Record, 2002/2, 23p.","AGE_PUBLICATION_LINKS":"http://earthresources.efirst.com.au/product.asp?pID=754&cID=37&c=75443","AGE_ENTRY_DATE":"2024-07-15","AGE_LAST_UPDATED":"2024-09-27"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14791","geometry":{"type":"Point","coordinates":[141.43607641,-37.4503705]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14791,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9678102","IGSN":"10.60494/1bx0-9v42","SAMPLENO":9678102,"SAMPLE_ID":"GC8 G608","AGE_MA":484.9,"AGE_MA_UNCERTAINTY":3.4,"AGE_CONFIDENCE_LEVEL":"1 standard deviation","AGE_MSWD":null,"NUMBER_OF_ANALYSES":8,"CALCULATION_TYPE":"mixture-modelled component","GEOLOGICAL_EVENT":"metamorphism","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"Possible metamorphic crystallisation age, interpreted by Ireland et al. (2002). There is no chemical difference between these analyses and the co-interpreted 514.3 +/- 3.3 Ma (1sigma) magmatic zircon population.","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Two-component mixture modelling by Ireland et al. (2002) of 17 analyses spanning 520-470 Ma. This younger population = 47% of the total (~8 analyses).","AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":7400,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU7400","STRAT_UNIT_NAME":"Glenelg River Metamorphic Complex","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"metamorphic quartz porphyry","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metamorphosed acid igneous rock","LITHOLOGY":"rhyolite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Ireland et al. (2002), Turner et al. (2022): Metamorphosed quartz porphyry, sampled on the Wando River, upstream from its junction with Boundary Creek in the Wando Vale area. This rock is a quartzofeldspathic schist from the garnet zone, originally thought to be an aplite dyke. It is one of a series of quartz porphyry (rhyolite) sills and dykes that continue into low grade rocks where the original porphyritic textures are evident (Wells, 1956). They are tentatively correlated with the Truro Volcanics (Ireland et al., 2002). A sample collected by Wells (1956) from the same dyke contains the S2 schistosity and cuts bedding. It is largely composed of quartz, feldspar and muscovite, with minor biotite, with the foliation defined by aligned muscovite and biotite. Quartz and feldspar phenocrysts are still evident, and large grey-brown apatite grains may be original igneous accessories. Rare poikilitic garnet porphyroblasts have grown during metamorphism.","SAMPLING_FEATURE_NAME":"GC8 G608","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS923493","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"VIC","COUNTRY":"AUS","LAT_GDA94":-37.4503704953,"LONG_GDA94":141.4360764054,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":"Wando River, upstream from junction with Boundary Creek, Wando Vale area.","SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Gibson, G.M.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"50065","AGE_REF":"Ireland, T.R., Morand, V.J., Gibson, G.M., 2002. Results of some recent SHRIMP U-Pb zircon dating of rocks from the Glenelg Zone of western Victoria. Geological Survey of Victoria Technical Record, 2002/2, 23p.","AGE_PUBLICATION_LINKS":"http://earthresources.efirst.com.au/product.asp?pID=754&cID=37&c=75443","AGE_ENTRY_DATE":"2024-07-12","AGE_LAST_UPDATED":"2024-09-27"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14810","geometry":{"type":"Point","coordinates":[141.43607641,-37.4503705]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14810,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9678102","IGSN":"10.60494/1bx0-9v42","SAMPLENO":9678102,"SAMPLE_ID":"GC8 G608","AGE_MA":514.1,"AGE_MA_UNCERTAINTY":3.3,"AGE_CONFIDENCE_LEVEL":"1 standard deviation","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"mixture-modelled component","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"Magmatic crystallisation age, interpreted by Ireland et al. (2002). There is no chemical difference between these analyses and the co-interpreted 484.9 +/- 3.4 Ma (1sigma) metamorphic zircon population.","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Two-component mixture modelling by Ireland et al. (2002) of 17 analyses spanning 520-470 Ma. This older population = 53% of the total (~9 analyses)","AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":7400,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU7400","STRAT_UNIT_NAME":"Glenelg River Metamorphic Complex","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"metamorphosed quartz porphyry, Glenelg River Metamorphic Complex","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metamorphosed acid igneous rock","LITHOLOGY":"rhyolite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Ireland et al. (2002), Turner et al. (2022): Metamorphosed quartz porphyry, sampled on the Wando River, upstream from its junction with Boundary Creek in the Wando Vale area. This rock is a quartzofeldspathic schist from the garnet zone, originally thought to be an aplite dyke. It is one of a series of quartz porphyry (rhyolite) sills and dykes that continue into low grade rocks where the original porphyritic textures are evident (Wells, 1956). They are tentatively correlated with the Truro Volcanics (Ireland et al., 2002). A sample collected by Wells (1956) from the same dyke contains the S2 schistosity and cuts bedding. It is largely composed of quartz, feldspar and muscovite, with minor biotite, with the foliation defined by aligned muscovite and biotite. Quartz and feldspar phenocrysts are still evident, and large grey-brown apatite grains may be original igneous accessories. Rare poikilitic garnet porphyroblasts have grown during metamorphism.","SAMPLING_FEATURE_NAME":"GC8 G608","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS923493","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"VIC","COUNTRY":"AUS","LAT_GDA94":-37.4503704953,"LONG_GDA94":141.4360764054,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":"Wando River, upstream from junction with Boundary Creek, Wando Vale area.","SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Gibson, G.M.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"50065","AGE_REF":"Ireland, T.R., Morand, V.J., Gibson, G.M., 2002. Results of some recent SHRIMP U-Pb zircon dating of rocks from the Glenelg Zone of western Victoria. Geological Survey of Victoria Technical Record, 2002/2, 23p.","AGE_PUBLICATION_LINKS":"http://earthresources.efirst.com.au/product.asp?pID=754&cID=37&c=75443","AGE_ENTRY_DATE":"2024-07-12","AGE_LAST_UPDATED":"2024-12-09"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14694","geometry":{"type":"Point","coordinates":[142.047381,-30.721959]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14694,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677804","IGSN":"10.60494/p67s-5p75","SAMPLENO":9677804,"SAMPLE_ID":"7336PJG0142.01A","AGE_MA":652,"AGE_MA_UNCERTAINTY":null,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":null,"NUMBER_OF_ANALYSES":1,"CALCULATION_TYPE":"single analysis","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"U/Pb not captured","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"Macquarie University","AGE_INTERPRETED_FROM_SOURCE":"maximum depositional age (sedimentary)","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Provenance dating on a Nundora Formation sandstone using U-Pb zircon analysis suggests a maximum age of approximately 652 Ma, based on the youngest zircon analysed (out of 60 zircons). Mainly 1100-1200 Ma.","AGE_SOURCE":"MinView/Original publication","PROJECT":null,"STRATNO":37338,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU37338","STRAT_UNIT_NAME":"Nundora Formation","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Nundora Formation","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"medium-coarse grained siliciclastic rock","LITHOLOGY":"sandstone","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Silty and muddy sandstone","SAMPLING_FEATURE_NAME":"7336PJG0142.01A","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS922807","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-30.721959,"LONG_GDA94":142.047381,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Saeed, A.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"66623","AGE_REF":"Greenfield, J.E., Gilmore, P.J., Mills, K.J., 2010. Explanatory notes for the Koonenberry Belt geological maps. Geological Survey of New South Wales, Bulletin, 35, 498pp.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/report/R00049567","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14693","geometry":{"type":"Point","coordinates":[142.713125,-31.270909]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14693,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677805","IGSN":"10.60494/s9qf-s960","SAMPLENO":9677805,"SAMPLE_ID":"PJG0059","AGE_MA":398.9,"AGE_MA_UNCERTAINTY":3.8,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":1.8,"NUMBER_OF_ANALYSES":4,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation split-stream (LASS): COMPex 102 193 nm excimer UV laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: RESOlution-LR","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"emplacement age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"Blue Tank Well","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"basic volcanic rock","LITHOLOGY":"basalt","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Sample supplied by GSNSW. Perry paraphrased: Dark-grey, mostly fine-grained rock with a porphyritic texture. Coarser white grains (3 mm) stand out from the fine-grained blue-grey groundmass. Surface is weathered in some places. Very strongly altered and difficult to determine mafic mineral phases. Relics of clinopyroxene phenocrysts throughout the slide, quite fine-grained (commonly 0.5 mm). Chlorite and epidote replace much of the groundmass, and interstitial quartz (mostly >0.5 mm) is common.","SAMPLING_FEATURE_NAME":"PJG0059","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS922808","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-31.270909,"LONG_GDA94":142.713125,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"unpublished report, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75278","AGE_REF":"Perry, V.E., 2021, Geochemistry of the Loch Lilly-Kars volcanics and correlation along the Tasman Line, Eastern Australia. [Honours thesis, unpublished]. University of Newcastle, NSW.","AGE_PUBLICATION_LINKS":"Not Recorded","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14702","geometry":{"type":"Point","coordinates":[142.67831,-30.871638]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14702,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677806","IGSN":"10.60494/k8q2-ka05","SAMPLENO":9677806,"SAMPLE_ID":"PJG0080","AGE_MA":509.1,"AGE_MA_UNCERTAINTY":1.17,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":0.97,"NUMBER_OF_ANALYSES":25,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation split-stream (LASS): COMPex 102 193 nm excimer UV laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: RESOlution-LR","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"emplacement age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"gabbroic dolerite east of Koonenberry Fault","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"basic intrusive rock","LITHOLOGY":"dolerite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Sample supplied by GSNSW. Perry paraphrased: Rock consists of mostly even sized, fine-medium grains (0.5 - 1 mm) with some slightly larger phenocrysts up to approximately 3 mm. Grains do not appear oriented. Phenocrysts are usually clear with a lustrous appearance and are tabular shaped, likely plagioclase. Finer grains consist of black, shiny grains and grey, dull grains. Leucocratic pod of dark pink-grey appearance, consisting of shiny grains throughout as well as dull creamy-white grains. Felsic material is aplite like. Plagioclase phenocrysts are quite altered and occasionally exhibit zoning, ranging from coarse laths (up to 3 mm) to finer grained interlocking grains. Clinopyroxene phenocrysts are commonly altered to green hornblende and vary in grainsize from 0.5 to 1.5 mm. Quartz shows undulose extinction and form optically continuous grains surrounding plagioclase. The leucocratic pod is composed of mostly quartz and myrmekite with fine clusters of chlorite and calcite as well as coarser grains from the host rock included along the boundary. Fine zircons are present within this pod as well as apatite.","SAMPLING_FEATURE_NAME":"PJG0080","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS922809","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-30.871638,"LONG_GDA94":142.67831,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"unpublished report, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75278","AGE_REF":"Perry, V.E., 2021, Geochemistry of the Loch Lilly-Kars volcanics and correlation along the Tasman Line, Eastern Australia. [Honours thesis, unpublished]. University of Newcastle, NSW.","AGE_PUBLICATION_LINKS":"Not Recorded","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-12-09"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14776","geometry":{"type":"Point","coordinates":[140.084223,-36.399481]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14776,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9678109","IGSN":"10.60494/d9k0-ec48","SAMPLENO":9678109,"SAMPLE_ID":"R172005","AGE_MA":493,"AGE_MA_UNCERTAINTY":7,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"Magmatic crystallisation age.","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Cited in Table 3 of Foden et al. (2006).","AGE_SOURCE":"Unpublished GSSA compilation","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Rhyodacite lava, Windsong","UNIT_NAME_SOURCE":"Rhyodacite lava, Windsong","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid volcanic rock","LITHOLOGY":"rhyodacite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"SARIG: Felsic volcanic rock. Foden et al. (2006): Rhyodacite lava, Windsong.","SAMPLING_FEATURE_NAME":"R172005","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS923500","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-36.399481,"LONG_GDA94":140.084223,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Geological Survey of South Australia","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Burtt, A.C., Fanning, C.M., unpublished.","AGE_PUBLICATION_LINKS":null,"AGE_ENTRY_DATE":"2024-07-12","AGE_LAST_UPDATED":"2024-09-27"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14777","geometry":{"type":"Point","coordinates":[140.318694,-36.197312]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14777,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9678110","IGSN":"10.60494/372j-1578","SAMPLENO":9678110,"SAMPLE_ID":"R172009","AGE_MA":464,"AGE_MA_UNCERTAINTY":7,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"Magmatic crystallisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Cited by Hough & Robertson (2007). GSSA Report-Book RB2007/00012: Mount Monster deposit near Keith - potential resumption of quarrying.","AGE_SOURCE":"Unpublished GSSA compilation","PROJECT":null,"STRATNO":25288,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU25288","STRAT_UNIT_NAME":"Mount Monster Porphyry","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Mount Monster Porphyry","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid volcanic rock","LITHOLOGY":"rhyolite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"SARIG: Rhyolite, porphyritic, quartz and tabular feldspar phenocrysts; orange-brown or grey-green groundmass with feldspar phenocrysts; Flow banded, may be welded ash flow in part. A-type, post-tectonic.","SAMPLING_FEATURE_NAME":"R172009","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS923501","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-36.197312,"LONG_GDA94":140.318694,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Geological Survey of South Australia","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Burtt, A.C., Fanning, C.M., unpublished.","AGE_PUBLICATION_LINKS":null,"AGE_ENTRY_DATE":"2024-07-12","AGE_LAST_UPDATED":"2024-09-27"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14835","geometry":{"type":"Point","coordinates":[139.4514902,-33.2023955]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14835,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9678068","IGSN":"10.60494/hwvj-vb75","SAMPLENO":9678068,"SAMPLE_ID":"BD21WH033","AGE_MA":469.4,"AGE_MA_UNCERTAINTY":2.4,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"model age","GEOLOGICAL_EVENT":"mineralisation","ISOTOPIC_SYSTEM":"Re/Os","ISOTOPIC_RATIO":"187Re/187Os and 187Os/188Os","MINERAL":"Molybdenite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"isotope dilution: solvent extraction (Os and Re) and anion chromatography (Re)","ANALYTICAL_COLLECTION_SYSTEM":"N-TIMS: Thermo Scientific Triton","LABORATORY_NAME":"Durham Geochemistry Centre, Durham University","AGE_INTERPRETED_FROM_SOURCE":"mineralisation or remobilisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metasomatic rock","LITHOLOGY":"vein carbonate","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"borehole specimen","SAMPLE_DESC":"Hong et al. (2023): Molybdenite-pyrite-quartz-carbonate vein (0.5-1 cm wide) cutting dark siltstone. Other_ID is the Geological Survey of South Australia sample number, searchable in SARIG.","SAMPLING_FEATURE_NAME":"BD 6","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH920057","BOREHOLE_TOP_DEPTH_M":83.35,"BOREHOLE_BASE_DEPTH_M":83.5,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-33.2023955,"LONG_GDA94":139.4514902,"ELEV_M_AHD":225,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Geological Survey of South Australia","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75783","AGE_REF":"Hong, W., Fabris, A., Wise, T., Collins, A.S., Gilbert, S., Selby, D., Curtis, S., Reid, A.J., 2023. 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(2023): Thin (1-2 mm) muscovite-pyrite vein cutting moderate K-feldspar-epidote alteration within biotite granite. Other_ID is the Geological Survey of South Australia sample number, searchable in SARIG.","SAMPLING_FEATURE_NAME":"BD 7","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH920107","BOREHOLE_TOP_DEPTH_M":155.95,"BOREHOLE_BASE_DEPTH_M":156.15,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-33.1940235,"LONG_GDA94":139.4599502,"ELEV_M_AHD":227,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Geological Survey of South Australia","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75783","AGE_REF":"Hong, W., Fabris, A., Wise, T., Collins, A.S., Gilbert, S., Selby, D., Curtis, S., Reid, A.J., 2023. 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(2023): Diorite porphyry. Other_ID is the Geological Survey of South Australia sample number, searchable in SARIG.","SAMPLING_FEATURE_NAME":"BD 7","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH920107","BOREHOLE_TOP_DEPTH_M":176.7,"BOREHOLE_BASE_DEPTH_M":177.8,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-33.1940235,"LONG_GDA94":139.4599502,"ELEV_M_AHD":227,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Geological Survey of South Australia","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75783","AGE_REF":"Hong, W., Fabris, A., Wise, T., Collins, A.S., Gilbert, S., Selby, D., Curtis, S., Reid, A.J., 2023. 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(2023): Thick (2-3 cm) white mica-quartz-pyrite-chalcopyrite-molybdenite vein cutting albite-altered granodiorite. Other_ID is the Geological Survey of South Australia sample number, searchable in SARIG.","SAMPLING_FEATURE_NAME":"BD 7","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH920107","BOREHOLE_TOP_DEPTH_M":201.8,"BOREHOLE_BASE_DEPTH_M":202.4,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-33.1940235,"LONG_GDA94":139.4599502,"ELEV_M_AHD":227,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Geological Survey of South Australia","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75783","AGE_REF":"Hong, W., Fabris, A., Wise, T., Collins, A.S., Gilbert, S., Selby, D., Curtis, S., Reid, A.J., 2023. 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(2002): Single analysis at c. 500 Ma, with common 206Pb < 1% and Th/U < 0.1, possible representing low-Th/U zircon (grown in the presence of monazite) during Delamerian-aged metamorphism.","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":7400,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU7400","STRAT_UNIT_NAME":"Glenelg River Metamorphic Complex","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Psammitic schist hosting Wando Tonalite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metasedimentary siliciclastic rock","LITHOLOGY":"schist","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Ireland et al. (2002): Sampled at Boundary Creek, Wando Vale area, 15 m from the contact with the Wando Tonalite. This sample is a garnet-zone psammitic schist. A similar schist from about 40 m away has mainly quartz, muscovite, red-brown biotite, plagioclase, microcline, with minor opaques, tourmaline, zircon and rutile. Micas are aligned to form a schistosity, while quartz and feldspar form a granoblastic texture. The rock is a metamorphosed\r\nquartz wacke, metamorphosed and deformed by the Delamerian Orogeny.","SAMPLING_FEATURE_NAME":"GC10","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS923557","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":"Lachlan Region","REGION_NAME_SOURCE":null,"STATE":"VIC","COUNTRY":"AUS","LAT_GDA94":-37.4391140089,"LONG_GDA94":141.4331850132,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":"Boundary Creek, Wando Vale area. Sample is 15 m from contact with Wando Tonalite.","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Gibson, G.M.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"50065","AGE_REF":"Ireland, T.R., Morand, V.J., Gibson, G.M., 2002. Results of some recent SHRIMP U-Pb zircon dating of rocks from the Glenelg Zone of western Victoria. Geological Survey of Victoria Technical Record, 2002/2, 23p.","AGE_PUBLICATION_LINKS":"http://earthresources.efirst.com.au/product.asp?pID=754&cID=37&c=75443","AGE_ENTRY_DATE":"2024-07-15","AGE_LAST_UPDATED":"2024-09-27"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15188","geometry":{"type":"Point","coordinates":[136.79706986,-30.47013419]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15188,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034227","IGSN":"10.60494/e49m-6175","SAMPLENO":11034227,"SAMPLE_ID":"R2111462","AGE_MA":1559,"AGE_MA_UNCERTAINTY":20,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.53,"NUMBER_OF_ANALYSES":24,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"cooling","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Apatite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"post magmatic cooling after Hiltaba Suite emplacement","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":26613,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU26613","STRAT_UNIT_NAME":"Hiltaba Suite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Hiltaba Suite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"syenogranite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"GSSA rock database: The sample comprises very corase grained K-feldspar and quartz with lesser plagioclase. Minor biotite is present. Feldspar species are intensely sericite altered and red in colour indicating pervasive hematite alteration. Biotite is altered to chlorite and opaque species. Quartz shows minor undulose extinction, indicative of minor strain. The granite is variably fractured.","SAMPLING_FEATURE_NAME":"Blanche 1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH551593","BOREHOLE_TOP_DEPTH_M":1005.6,"BOREHOLE_BASE_DEPTH_M":1006,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-30.470134194,"LONG_GDA94":136.7970698638,"ELEV_M_AHD":96,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2015-01-19","SAMPLE_ORIGINATOR":"Reid, A.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"74364","AGE_REF":"Hall, J.W., Glorie, S., Reid, A.J., Collins, A.S., Jourdan, F., Danisik, M., Evans, N., 2018. Thermal history of the northern Olympic Domain, Gawler Craton; correlations between thermochronometric data and mineralising systems. Gondwana Research, 56, 90-104.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.gr.2018.01.001","AGE_ENTRY_DATE":"2025-10-29","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15135","geometry":{"type":"Point","coordinates":[137.8472797,-34.492946]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15135,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034295","IGSN":"10.60494/f7b4-p224","SAMPLENO":11034295,"SAMPLE_ID":"EQDD-008A","AGE_MA":1509,"AGE_MA_UNCERTAINTY":6.5,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.29,"NUMBER_OF_ANALYSES":30,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"metamorphism","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Monazite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7900","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"metamorphic age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Note stats taken from Appendix D in the source paper due to some conflicting information in main body of text.","AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"foliated metamorphic rock","LITHOLOGY":"gneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Bockmann et al 2022: Qz-kfs-bt-sil-pl-ms-hem gneiss. This metapelitic gneiss contains quartz, K-feldspar, biotite, sillimanite, plagioclase, muscovite and hematite. This sample has gneissic layering defined by quartz, K-feldspar and plagioclase that alternate with domains dominated by biotite, muscovite, sillimanite and hematite. Quartz, K-feldspar, plagioclase, biotite and muscovite grains are commonly 0.5-1 mm, patches of sillimanite are up to 2 mm wide, and grains of hematite are between 100 and 500 um.","SAMPLING_FEATURE_NAME":"EQDD-008A ","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH938944","BOREHOLE_TOP_DEPTH_M":395.6,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-34.492946,"LONG_GDA94":137.8472797,"ELEV_M_AHD":0,"ACCURACY_M":10,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2011-11-11","SAMPLE_ORIGINATOR":"Bockmann, M.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73644","AGE_REF":"Bockmann, M.J., Hand, M., Morrissey, L.J., Payne, J.L., Hasterok, D., Teale, G., Conor, C., 2022. Punctuated geochronology within a sustained high-temperature thermal regime in the southeastern Gawler Craton. Lithos, 430-431, 106860, 18p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.lithos.2022.106860","AGE_ENTRY_DATE":"2025-10-24","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15142","geometry":{"type":"Point","coordinates":[137.8472797,-34.492946]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15142,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034295","IGSN":"10.60494/f7b4-p224","SAMPLENO":11034295,"SAMPLE_ID":"EQDD-008A","AGE_MA":1459,"AGE_MA_UNCERTAINTY":20,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.42,"NUMBER_OF_ANALYSES":49,"CALCULATION_TYPE":"lower concordia intercept","GEOLOGICAL_EVENT":"cooling","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"238U/206Pb and 207Pb/206Pb","MINERAL":"Apatite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7900","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"cooling age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Upper intercepts (initial 207Pb/206Pb) are constrained from cogenetic K-feldspar.","AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"foliated metamorphic rock","LITHOLOGY":"gneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Bockmann et al 2022: Qz-kfs-bt-sil-pl-ms-hem gneiss. This metapelitic gneiss contains quartz, K-feldspar, biotite, sillimanite, plagioclase, muscovite and hematite. This sample has gneissic layering defined by quartz, K-feldspar and plagioclase that alternate with domains dominated by biotite, muscovite, sillimanite and hematite. Quartz, K-feldspar, plagioclase, biotite and muscovite grains are commonly 0.5-1 mm, patches of sillimanite are up to 2 mm wide, and grains of hematite are between 100 and 500 um.","SAMPLING_FEATURE_NAME":"EQDD-008A ","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH938944","BOREHOLE_TOP_DEPTH_M":395.6,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-34.492946,"LONG_GDA94":137.8472797,"ELEV_M_AHD":0,"ACCURACY_M":10,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2011-11-11","SAMPLE_ORIGINATOR":"Bockmann, M.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73644","AGE_REF":"Bockmann, M.J., Hand, M., Morrissey, L.J., Payne, J.L., Hasterok, D., Teale, G., Conor, C., 2022. Punctuated geochronology within a sustained high-temperature thermal regime in the southeastern Gawler Craton. Lithos, 430-431, 106860, 18p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.lithos.2022.106860","AGE_ENTRY_DATE":"2025-10-24","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15128","geometry":{"type":"Point","coordinates":[133.7325682,-27.1151213]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15128,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034296","IGSN":null,"SAMPLENO":11034296,"SAMPLE_ID":"R1707899","AGE_MA":1743,"AGE_MA_UNCERTAINTY":10,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.54,"NUMBER_OF_ANALYSES":16,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"AR-13","ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"maximum depositional age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"This is in good agreement with the age of metamorphism interpreted from the few zircon rim analyses [from this same sample], which gave an approximate timing of metamorphism at ca 1730 Ma.","AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Palaeoproterozoic unit 40","UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"foliated metamorphic rock","LITHOLOGY":"schist","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Jagodzinski et al 2013: Sample R1707099 is an altered quartz-plagioclase-muscovite-biotite-sillimanite-hematite schist. Sericite and minor chlorite commonly replaces plagioclase and sillimanite, suggesting a low temperature alteration event has affected these rocks.","SAMPLING_FEATURE_NAME":"GOMA DH2","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH934789","BOREHOLE_TOP_DEPTH_M":75.4,"BOREHOLE_BASE_DEPTH_M":75.8,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-27.1151213,"LONG_GDA94":133.7325682,"ELEV_M_AHD":346,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2010-01-14","SAMPLE_ORIGINATOR":"Dutch, R.A.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"69203; 76115","AGE_REF":"Jagodzinski, E., Reid, A., 2010. New zircon and monazite geochronology from recent GOMA Drilling. IN: Korsch, R.J., Kositcin, N., Duan, J., Neumann, N.L., Costelloe, R. (eds). Presentations from the 2010 GOMA Seismic and MT Workshop. Geoscience Australia (GA), Part 10, 26.; Jagodzinski, E.A., Reid, A.J., Dutch, R., 2013. Zircon and monazite geochronology via SHRIMP and LA-ICPMS for the northern Gawler Craton, from 2009 GOMA drilling. Geological Survey of South Australia. Report Book, 2013/00013, 73p.","AGE_PUBLICATION_LINKS":"https://pid.geoscience.gov.au/dataset/ga/71344; https://pid.sarig.sa.gov.au/document/d20010634","AGE_ENTRY_DATE":"2025-10-24","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15254","geometry":{"type":"Point","coordinates":[133.62358348,-30.41116846]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15254,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034240","IGSN":"10.60494/6wqd-aa07","SAMPLENO":11034240,"SAMPLE_ID":"3825284","AGE_MA":2475,"AGE_MA_UNCERTAINTY":25,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":1.15,"NUMBER_OF_ANALYSES":4,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"GS21101-21, mount 4","ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: RESOlution 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 8900 series","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":84260,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU84260","STRAT_UNIT_NAME":"Skye Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Aurora Tank Suite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Brown et al 2022: Sample 3825284 is a coarse-grained porphyritic K-feldspar-quartz-plagioclase-muscovite granite. In thin-section, the sample has a very slight foliation primarily defined by fine- to medium-grained muscovite. Coarse-grained K-feldspar phenocrysts are euhedral, elongate, and show moderate sericitic alteration. There are also minor occurrences of perthite, microcline and myrmekitic intergrowths after K-feldspar. Coarse-grained plagioclase phenocrysts preserving albite twinning are similarly euhedral and elongate, although they are rarer in the sample. Fine- to medium-grained quartz preserves anhedral grain shapes and is texturally interstitial, often associated with muscovite. Muscovite is sometimes replaced by fine-grained biotite and very rare chlorite. Very rare and extremely fine-grained sulphide is sometimes associated with biotite. Mineral proportions: K-feldspar (~40 vol%), quartz (~35 vol%), plagioclase (~10 vol%), muscovite (~10 vol%), minor phases (~5 vol%). ","SAMPLING_FEATURE_NAME":"DMDD-002","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH547737","BOREHOLE_TOP_DEPTH_M":150.62,"BOREHOLE_BASE_DEPTH_M":151.48,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-30.4111684591,"LONG_GDA94":133.623583482,"ELEV_M_AHD":136,"ACCURACY_M":10,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2021-08-16","SAMPLE_ORIGINATOR":"Reid, A.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"74363","AGE_REF":"Brown, D., Pawley, M., Williams, M., Reid, A., Jagodzinski, E., 2022. Zircon LA-ICP-MS geochronological and geochemical results from the central-western Gawler Craton. Geological Survey of South Australia. Report Book, 2022/00008, 139p.","AGE_PUBLICATION_LINKS":"https://pid.sarig.sa.gov.au/document/2022d112405","AGE_ENTRY_DATE":"2025-10-29","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15202","geometry":{"type":"Point","coordinates":[137.4898696,-31.5663054]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15202,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034241","IGSN":"10.60494/sjva-9y69","SAMPLENO":11034241,"SAMPLE_ID":"1709141","AGE_MA":1848,"AGE_MA_UNCERTAINTY":16,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.53,"NUMBER_OF_ANALYSES":7,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"magmatic zircon crystallisation and emplacement of the granodiorite","OTHER_AGE_INTERPRETED_FROM_SOURCE":"1853 +/- 9 Ma = upper intercept (n = 10)","AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":5603,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU5603","STRAT_UNIT_NAME":"Donington Suite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"granodiorite, probably Donington Suite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granodiorite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Reid et al 2011: Sample 1709141 is of medium-grained biotite granodiorite, and comprises quartz, plagioclase, Kfeldspar, biotite and accessory magnetite, ilmenite, apatite and zircon.","SAMPLING_FEATURE_NAME":"GHDD1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH897279","BOREHOLE_TOP_DEPTH_M":967.7,"BOREHOLE_BASE_DEPTH_M":968.7,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-31.5663054,"LONG_GDA94":137.4898696,"ELEV_M_AHD":93,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Reid, A.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"66916","AGE_REF":"Reid, A.J., Swain, G., Mason, D., Maas, R., 2011. Nature and timing of Cu-Au-Zn-Pb mineralisation at Punt Hill, eastern Gawler Craton. MESA Journal, 60, 7-17.","AGE_PUBLICATION_LINKS":"https://pid.sarig.sa.gov.au/document/2018d040362","AGE_ENTRY_DATE":"2025-10-29","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15207","geometry":{"type":"Point","coordinates":[135.1210912,-30.0035158]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15207,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034245","IGSN":"10.60494/088j-r210","SAMPLENO":11034245,"SAMPLE_ID":"1676317","AGE_MA":1706,"AGE_MA_UNCERTAINTY":38,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"ideogram","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"AR-10","ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7700","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"maximum depositional age","OTHER_AGE_INTERPRETED_FROM_SOURCE":"Weighted mean 207/206 ages: 1720 +/- 21 Ma (MSWD = 0.99, n = 5); 1709 +/- 26 Ma (MSWD = 0.77, n = 3)","AGE_REMARK_FROM_SOURCE":"This poorly defined age, derived from the Unmix age function of Isoplot is considered to be a conservative estimate for the maximum depositional age for this sample.","AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":23710,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU23710","STRAT_UNIT_NAME":"Labyrinth Formation","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"conglomerate, DDH HK DD 4, Hawks Nest Deposit. Possibly Labyrinth Formation","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"medium-coarse grained siliciclastic rock","LITHOLOGY":"conglomerate","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Reid 2013: The Hawks Nest deposit is part of an intense north-northeast linear magnetic anomaly interpreted as an upthrown fault block of interpreted Palaeoproterozoic metasediments, including BIF horizons equated with the Wilgena Hill Jaspilite (Morris et al. 1998). Drilling suggested an inferred resource of 600 Mt to 130 m depth (Morris et al. 1998). Overlying the BIF in several drill holes is a zone conglomerate, best intersected in drill hole HK DD 4. This sample is a pebbly conglomerate composed of coarse lithic fragments and clasts of altered, felsic volcanic, quartzose sandstone. Other clasts and many coarse grains (and matrix) of extremely fine, compact chloritic material +/- silica +/- carbonate +/- magnetite.","SAMPLING_FEATURE_NAME":"HK DD 4","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH894801","BOREHOLE_TOP_DEPTH_M":41.9,"BOREHOLE_BASE_DEPTH_M":42.9,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-30.0035158,"LONG_GDA94":135.1210912,"ELEV_M_AHD":171,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2009-02-03","SAMPLE_ORIGINATOR":"Reid, A.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"76124","AGE_REF":"Reid, A.J., 2013. Reconnaissance LA-ICPMS zircon U-Pb geochronology from samples from the central-northern Gawler Craton. Geological Survey of South Australia. Report Book, 2013/00021, 20p.","AGE_PUBLICATION_LINKS":"https://pid.sarig.sa.gov.au/document/d20010642","AGE_ENTRY_DATE":"2025-10-29","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15153","geometry":{"type":"Point","coordinates":[137.8165,-34.647]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15153,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034308","IGSN":"10.60494/98x8-4670","SAMPLENO":11034308,"SAMPLE_ID":"RDD003c","AGE_MA":1512,"AGE_MA_UNCERTAINTY":8.9,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":22,"CALCULATION_TYPE":"mixture-modelled component","GEOLOGICAL_EVENT":"metamorphism","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Monazite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7900","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"metamorphic age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"The monazite KDE plot indicates the age population is bimodal, suggesting two age populations are present.","AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"foliated metamorphic rock","LITHOLOGY":"gneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"borehole specimen","SAMPLE_DESC":"Bockmann et al 2022: Qz-kfs-pl-bt gneiss. This metapsammitic gneiss contains quartz, K-feldspar, plagioclase, biotite and hematite. Grains are largely between 400 and 600 um, but fine grains (<50 um) of quartz, K-feldspar and plagioclase occur at the edges of coarse-grained minerals, often with mymerkitic intergrowths of quartz and plagioclase. Euhedral biotite defines a well-developed foliation.","SAMPLING_FEATURE_NAME":"RDD003","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH938953","BOREHOLE_TOP_DEPTH_M":408.6,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-34.647,"LONG_GDA94":137.8165,"ELEV_M_AHD":0,"ACCURACY_M":10,"LOCATION_METHOD":"published report, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Bockmann, M.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73644","AGE_REF":"Bockmann, M.J., Hand, M., Morrissey, L.J., Payne, J.L., Hasterok, D., Teale, G., Conor, C., 2022. Punctuated geochronology within a sustained high-temperature thermal regime in the southeastern Gawler Craton. Lithos, 430-431, 106860, 18p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.lithos.2022.106860","AGE_ENTRY_DATE":"2025-10-24","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14773","geometry":{"type":"Point","coordinates":[139.5053341,-34.7089145]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14773,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9678111","IGSN":"10.60494/6a0r-bk94","SAMPLENO":9678111,"SAMPLE_ID":"R1969226","AGE_MA":517.41,"AGE_MA_UNCERTAINTY":0.21,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1,"NUMBER_OF_ANALYSES":7,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"isotope dilution: chemical abrasion and isotope dilution","ANALYTICAL_COLLECTION_SYSTEM":"TIMS: GV Isoprobe-T","LABORATORY_NAME":"Boise State University","AGE_INTERPRETED_FROM_SOURCE":"Eruption/magmatic crystallisation age.","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Quoted uncertainty includes that of the EARTHTIME U/Pb tracer.","AGE_SOURCE":"Unpublished GSSA compilation","PROJECT":null,"STRATNO":33661,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU33661","STRAT_UNIT_NAME":"Marne River Volcanics","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Marne River Volcanics","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid volcanic rock","LITHOLOGY":"tuff","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Curtis et al. (2022): Felsic tuff, Marne River Volcanics.","SAMPLING_FEATURE_NAME":"R1969226","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS923502","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Stansbury Basin","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-34.7089145,"LONG_GDA94":139.5053341,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Geological Survey of South Australia","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75784","AGE_REF":"Curtis, S., Payne, J., Crowley, J., Jagodzinski, L., Preiss, W., Pawley, M., Wise, T., Morrissey, L., McGee, L., 2022, Back-arc extension and inversion during the Delamerian Orogeny. IN: Folkes C.B. (compiler) Uncover Curnamona 2022: Symposium Presentations. 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Previous Rb-Sr age of  479 +/- 15 Ma (initial 87Sr/86Sr = 0.7086).","SAMPLING_FEATURE_NAME":"R2078856","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS923503","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-34.8471205,"LONG_GDA94":139.1473962,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Geological Survey of South Australia","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75784","AGE_REF":"Curtis, S., Payne, J., Crowley, J., Jagodzinski, L., Preiss, W., Pawley, M., Wise, T., Morrissey, L., McGee, L., 2022, Back-arc extension and inversion during the Delamerian Orogeny. IN: Folkes C.B. 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(compiler) Uncover Curnamona 2022: Symposium Presentations. 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Thermal history of the northern Olympic Domain, Gawler Craton; correlations between thermochronometric data and mineralising systems. Gondwana Research, 56, 90-104.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.gr.2018.01.001","AGE_ENTRY_DATE":"2025-10-29","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15210","geometry":{"type":"Point","coordinates":[132.2554634,-29.6007933]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15210,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034271","IGSN":"10.60494/w7ka-rk95","SAMPLENO":11034271,"SAMPLE_ID":"2115313","AGE_MA":1542,"AGE_MA_UNCERTAINTY":8,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.63,"NUMBER_OF_ANALYSES":4,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"metamorphism","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Monazite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"University of Tasmania","AGE_INTERPRETED_FROM_SOURCE":"metamorphic age phase 2","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":28826,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU28826","STRAT_UNIT_NAME":"Mulgathing Complex","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"quartzo-feldspathic gneiss, Nawa Domain","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"foliated metamorphic rock","LITHOLOGY":"felsic gneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Reid et al 2019: This sample is a quartzo-feldspathic gneiss that contains a coarse-grained mineral assemblage of garnet, biotite, K-feldspar, plagioclase, quartz, ilmenite and minor sulfides (pyrite, chalcopyrite); accessory phases include monazite and zircon. 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Monazite geochronology and phase equilibria modelling were conducted on this sample.","SAMPLING_FEATURE_NAME":"OBD 12","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH880269","BOREHOLE_TOP_DEPTH_M":466,"BOREHOLE_BASE_DEPTH_M":466.14,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-29.6007933,"LONG_GDA94":132.2554634,"ELEV_M_AHD":237,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2015-02-11","SAMPLE_ORIGINATOR":"Reid, A.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73649","AGE_REF":"Reid, A.J., Halpin, J.A., Dutch, R.A., 2019. Timing and style of high-temperature metamorphism across the Western Gawler Craton during the Paleo- to Mesoproterozoic. 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A moderate foliation is defined by biotite and elongate K-feldspar-rich lenses. Large subidioblastic garnet porphyroblasts (<3mm across) commonly contain biotite, ilmenite and sulfide inclusions and are typically surrounded by coarse biotite. Minor plagioclase and quartz occur in the matrix; plagioclase partly occurs as coronal rims on garnet and biotite. Embayed garnet is partly replaced by biotite and rare chlorite partly replaces biotite. In thin-section, a ~1 cm-wide domain containing additional minor spinel and sillimanite surrounded by plagioclase coronae represents an Al-rich lens. Garnet grains in this domain are smaller (<200 micron). Monazite geochronology and phase equilibria modelling were conducted on this sample.","SAMPLING_FEATURE_NAME":"OBD 12","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH880269","BOREHOLE_TOP_DEPTH_M":466,"BOREHOLE_BASE_DEPTH_M":466.14,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-29.6007933,"LONG_GDA94":132.2554634,"ELEV_M_AHD":237,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2015-02-11","SAMPLE_ORIGINATOR":"Reid, A.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73649","AGE_REF":"Reid, A.J., Halpin, J.A., Dutch, R.A., 2019. Timing and style of high-temperature metamorphism across the Western Gawler Craton during the Paleo- to Mesoproterozoic. Australian Journal of Earth Sciences, 66(8), 1085-1111.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099.2019.1602565","AGE_ENTRY_DATE":"2025-10-29","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15272","geometry":{"type":"Point","coordinates":[131.7597391,-30.58573949]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15272,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034273","IGSN":"10.60494/pdtd-qk36","SAMPLENO":11034273,"SAMPLE_ID":"660856","AGE_MA":1688,"AGE_MA_UNCERTAINTY":8.6,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.41,"NUMBER_OF_ANALYSES":20,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"metamorphism","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Monazite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"monazite growth during high-grade metamorphism","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Age is interpreted as the high-grade metamorphic event of the craton-wide Kimban Orogeny in the interval 1730-1690 Ma.","AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":34325,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU34325","STRAT_UNIT_NAME":"Moondrah Gneiss","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Ooldea 2: southwestern Nawa Domain","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metasedimentary siliciclastic rock","LITHOLOGY":"pelite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Payne et al 2008: This sample is a quartz-magnetite-plagioclase-feldspar-sillimanite-(sapphirine-cordierite) metapelite. The Ooldea 2 drillhole penetrates magnetite-bearing metasedimentary rocks, including aluminous pelitic granulites, to a depth of 169 m. Teasdale (1997) details a petrographical study of the Ooldea 2 granulites: Quartz-bearing granulites in Ooldea 2 contain three stages of mineral assemblage development. The first stage is defined by preserved coarse-grained intergrowths of prismatic sillimanite and magnetite, hypersthene, garnet coronas on magnetite and garnet-magnetite symplectites. This coarse-grained assemblage is overprinted by a fine-grained, high-strain fabric associated with the development of: (i) hypersthene, sillimanite and quartz intergrowths interpreted to have replaced primary cordierite; and (ii) hypersthene, sapphirine, K-feldspar, plagioclase and quartz intergrowths interpreted to have replaced after osumilite. The final stage of mineral growth includes the development of retrograde biotite and cordierite after anhydrous phases (sapphirine and hypersthene). ","SAMPLING_FEATURE_NAME":"Ooldea 2","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH444032","BOREHOLE_TOP_DEPTH_M":143,"BOREHOLE_BASE_DEPTH_M":143.3,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-30.5857394925,"LONG_GDA94":131.759739103,"ELEV_M_AHD":106,"ACCURACY_M":20,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2004-11-01","SAMPLE_ORIGINATOR":"Payne, J.L.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"64576","AGE_REF":"Payne, J.L., Hand, M., Barovich, K.M., Wade, B.P., 2008. Temporal constraints on the timing of high-grade metamorphism in the northern Gawler Craton: implications for assembly of the Australian Proterozoic. Australian Journal of Earth Sciences, 55(5), 623-640.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120090801982595","AGE_ENTRY_DATE":"2025-10-29","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.4213","geometry":{"type":"Point","coordinates":[119.728995,-16.34654333]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":4213,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU2635901","IGSN":"10273/AU2635901","SAMPLENO":2635901,"SAMPLE_ID":"Hannover South 1, 4850-4900","AGE_MA":222.5,"AGE_MA_UNCERTAINTY":3.1,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.34,"NUMBER_OF_ANALYSES":9,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":"GA6358","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Geoscience Australia","AGE_INTERPRETED_FROM_SOURCE":"Maximum depositional age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"Inserted from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 23 October 2019","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":null,"LITHOLOGY":null,"MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"drill chips/cuttings","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"Hannover South 1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH578073","BOREHOLE_TOP_DEPTH_M":4850,"BOREHOLE_BASE_DEPTH_M":4900,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-16.34654333,"LONG_GDA94":119.728995,"ELEV_M_AHD":-820,"ACCURACY_M":100,"LOCATION_METHOD":"company supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Lewis, C.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":null,"AGE_PUBLICATION_LINKS":null,"AGE_ENTRY_DATE":"2019-10-23","AGE_LAST_UPDATED":"2020-11-02"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15130","geometry":{"type":"Point","coordinates":[133.7325682,-27.1151213]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15130,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034296","IGSN":null,"SAMPLENO":11034296,"SAMPLE_ID":"R1707899","AGE_MA":1735,"AGE_MA_UNCERTAINTY":8,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.01,"NUMBER_OF_ANALYSES":24,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"metamorphism","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Monazite","MOUNT_ID":"AR-13","ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"metamorphic event","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Palaeoproterozoic unit 40","UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"foliated metamorphic rock","LITHOLOGY":"schist","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Jagodzinski et al 2013: Sample R1707099 is an altered quartz-plagioclase-muscovite-biotite-sillimanite-hematite schist. Sericite and minor chlorite commonly replaces plagioclase and sillimanite, suggesting a low temperature alteration event has affected these rocks.","SAMPLING_FEATURE_NAME":"GOMA DH2","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH934789","BOREHOLE_TOP_DEPTH_M":75.4,"BOREHOLE_BASE_DEPTH_M":75.8,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-27.1151213,"LONG_GDA94":133.7325682,"ELEV_M_AHD":346,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2010-01-14","SAMPLE_ORIGINATOR":"Dutch, R.A.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"69203; 76115","AGE_REF":"Jagodzinski, E., Reid, A., 2010. New zircon and monazite geochronology from recent GOMA Drilling. IN: Korsch, R.J., Kositcin, N., Duan, J., Neumann, N.L., Costelloe, R. (eds). Presentations from the 2010 GOMA Seismic and MT Workshop. Geoscience Australia (GA), Part 10, 26.; Jagodzinski, E.A., Reid, A.J., Dutch, R., 2013. Zircon and monazite geochronology via SHRIMP and LA-ICPMS for the northern Gawler Craton, from 2009 GOMA drilling. Geological Survey of South Australia. Report Book, 2013/00013, 73p.","AGE_PUBLICATION_LINKS":"https://pid.geoscience.gov.au/dataset/ga/71344; https://pid.sarig.sa.gov.au/document/d20010634","AGE_ENTRY_DATE":"2025-10-24","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.6984","geometry":{"type":"Point","coordinates":[120.085759,-21.193642]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":6984,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1579041","IGSN":"10273/AU1579041","SAMPLENO":1579041,"SAMPLE_ID":"142983","AGE_MA":3241,"AGE_MA_UNCERTAINTY":3,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.91,"NUMBER_OF_ANALYSES":15,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"age of igneous crystallization","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSWA","PROJECT":null,"STRATNO":39507,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU39507","STRAT_UNIT_NAME":"Bishop Creek Monzogranite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Bishop Creek Monzogranite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"monzogranite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"foliated biotite monzogranite","SAMPLING_FEATURE_NAME":"142983","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS130631","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Pilbara Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-21.193642,"LONG_GDA94":120.085759,"ELEV_M_AHD":239,"ACCURACY_M":50,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":"Christmas Well","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Nelson, D.R.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Nelson, DR 2000, 142983: foliated biotite monzogranite, Christmas Well; Geochronology Record 286: Geological Survey of Western Australia, 4p.","AGE_PUBLICATION_LINKS":"http://geodownloads.dmp.wa.gov.au/downloads/Geochron/pdfs/142983.1.pdf","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2020-11-16"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.3654","geometry":{"type":"Point","coordinates":[78.37780171,-68.4219605]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":3654,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1478901","IGSN":"10273/AU1478901","SAMPLENO":1478901,"SAMPLE_ID":"91286551","AGE_MA":1241,"AGE_MA_UNCERTAINTY":5,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.12,"NUMBER_OF_ANALYSES":13,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"U8223","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Unknown","AGE_INTERPRETED_FROM_SOURCE":"Age of magmatic crystallization of (meta-)igneous rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Data migrated from OZCHRON1. Original comment: All but two of the zircons(17.1,35.1 both slightly older) crystallized at 1241+_5 Ma (derived from 207Pb/206Pb ages), which is also inferred to be the crystallization age of the host dyke.","AGE_SOURCE":"Inserted from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 23 October 2019","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"felsic rock","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"felsic vein in Fe tholeiite (late segregation?)","SAMPLING_FEATURE_NAME":"91286551","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS148293","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"AAT","COUNTRY":"ATA","LAT_GDA94":-68.4219605014,"LONG_GDA94":78.3778017112,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"1:50 000 map","LOCATION_DESC":"Vestfold Hills. Bandits Island","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Lanyon, R.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":null,"AGE_PUBLICATION_LINKS":null,"AGE_ENTRY_DATE":"2019-10-23","AGE_LAST_UPDATED":"2021-06-08"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.13523","geometry":{"type":"Point","coordinates":[138.83474594,-34.6716109]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":13523,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1680547","IGSN":"10273/AU1680547","SAMPLENO":1680547,"SAMPLE_ID":"R695753","AGE_MA":1707,"AGE_MA_UNCERTAINTY":6,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.29,"NUMBER_OF_ANALYSES":2,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"Z4697","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"maximum depositional age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":1138,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU1138","STRAT_UNIT_NAME":"Barossa Complex","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metasedimentary siliciclastic rock","LITHOLOGY":"quartzite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"This sample was collected from the South Para River gorge in the northernHoughton Inlier, approximately 5 km E of Williamstown. The rock is a quartz dominated, K-feldspar bearing psammite. Minor biotite is also present defining a weak foliation. This sample comes from a 1 m thick, laterally extensive psammite layer from the steeply dipping psammopelite unit which dominates the northern Houghton Inlier. The average grain size is 1-2 mm, however some coarser grained patches are enriched in K-feldspar, which occurs as crystals up to 1 cm in size, suggesting that this rock has undergone partial melting. Some surfaces within this layer show slickenlines indicating some minor faulting present, however the psammite layer is not visibly offset. The surrounding psammopelites are composed of very fine-grained biotite and retrograde sericite, as well as quartzofeldspathic material which is concentrated into fine (~5 mm) bands. This segregation defines the gneissosity in these rocks which occurs at a low angle to the sedimentary structures in most areas. The gneissosity is obliterated by an overprinting cleavage in many areas. The psammopelite unit grades into a sillimanite bearing metapelite in the central and eastern Houghton Inlier. This sample is considered to have formed as a relatively well-sorted and compositionally mature quartz sandstone. It contained a minor proportion of clastic K-feldspar and a small amount of detrital argillaceous materials. Following burial and diagenesis, regional metamorphism with accompanying ductile deformation modified the rock. Quartz and K-feldspar grains suffered elongation and partial recrystallisation, and argillaceous components recrystallised to form fine-grained small aggregates of foliated biotite and sericite. The presence of biotite in the assemblage suggests that P-T conditions reached the middle greenschist facies.","SAMPLING_FEATURE_NAME":"R695753","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS352294","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Adelaide Region","REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-34.6716109,"LONG_GDA94":138.8347459437,"ELEV_M_AHD":173,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":"Sample R695753 was collected from the South Para River gorge in the norther Houghton Inlier, about 5 km E of Williamstown and 1 km downstream from sample R695754.","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Marjoribanks, R.W.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73105","AGE_REF":"Jagodzinski, E.A., Szpunar, M., Meaney, K., Fraser, G., 2020. SHRIMP U-Pb dating of the Barossa Complex, South Australia: exploring tectonic links between the Gawler Craton and Curnamona Province. Geological Survey of South Australia. Report Book, 2020/00017, 111p.","AGE_PUBLICATION_LINKS":"https://pid.sarig.sa.gov.au/document/2020d032924","AGE_ENTRY_DATE":"2022-11-27","AGE_LAST_UPDATED":null}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15136","geometry":{"type":"Point","coordinates":[137.8165,-34.647]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15136,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034309","IGSN":"10.60494/659n-1v55","SAMPLENO":11034309,"SAMPLE_ID":"RDD003b","AGE_MA":1549,"AGE_MA_UNCERTAINTY":3.8,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.05,"NUMBER_OF_ANALYSES":52,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"metamorphism","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Monazite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7900","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"metamorphic age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"foliated metamorphic rock","LITHOLOGY":"gneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"borehole specimen","SAMPLE_DESC":"Bockmann et al 2022: Qz-crd-sil-Kfs-bt-pl-hem gneiss. This metapelitic gneiss contains quartz, cordierite, sillimanite (fibrolite), K-feldspar, biotite, plagioclase, magnetite and chlorite. The sample preserves cm-scale gneissic layering with biotite and hematite-rich layers and quartz-K-feldspar-cordierite-sillimanite rich layers. Quartz, K-feldspar, cordierite and plagioclase largely form grains between 200 and 500 um. Magnetite forms grains up to 1 mm, but more commonly occurs as 50-200 um grains disseminated throughout the rock. The foliation is defined by sillimanite patches (up to 3 mm wide) and biotite (up to 1 cm); however, biotite grains commonly form oblique to the foliation and are in some instances associated with trace chlorite present in the sample. ","SAMPLING_FEATURE_NAME":"RDD003","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH938953","BOREHOLE_TOP_DEPTH_M":267.3,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-34.647,"LONG_GDA94":137.8165,"ELEV_M_AHD":0,"ACCURACY_M":10,"LOCATION_METHOD":"published report, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Bockmann, M.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73644","AGE_REF":"Bockmann, M.J., Hand, M., Morrissey, L.J., Payne, J.L., Hasterok, D., Teale, G., Conor, C., 2022. Punctuated geochronology within a sustained high-temperature thermal regime in the southeastern Gawler Craton. Lithos, 430-431, 106860, 18p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.lithos.2022.106860","AGE_ENTRY_DATE":"2025-10-24","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15139","geometry":{"type":"Point","coordinates":[137.8165,-34.647]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15139,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034310","IGSN":"10.60494/mcet-8k86","SAMPLENO":11034310,"SAMPLE_ID":"RDD003a","AGE_MA":1531,"AGE_MA_UNCERTAINTY":6.1,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.66,"NUMBER_OF_ANALYSES":65,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"metamorphism","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Titanite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7900","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"metamorphic age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Note stats taken from Appendix D in the source paper due to some conflicting information in main body of text.","AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"foliated metamorphic rock","LITHOLOGY":"gneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"borehole specimen","SAMPLE_DESC":"Bockmann et al 2022: Qz-kfs-pl-hbl-ttn-mag-hem-bt gneiss. This metamorphosed calc-silicate rock contains quartz, K-feldspar, plagioclase, hornblende, titanite, scapolite, magnetite, hematite, and biotite. Hornblende (<2 mm) and magnetite (400-600 μm) define the foliation. The matrix is dominated by quartz, K-feldspar, plagioclase, and scapolite (heavily altered to sericite) that form grains typically between 400 and 600 um.","SAMPLING_FEATURE_NAME":"RDD003","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH938953","BOREHOLE_TOP_DEPTH_M":163.3,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-34.647,"LONG_GDA94":137.8165,"ELEV_M_AHD":0,"ACCURACY_M":10,"LOCATION_METHOD":"published report, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Bockmann, M.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73644","AGE_REF":"Bockmann, M.J., Hand, M., Morrissey, L.J., Payne, J.L., Hasterok, D., Teale, G., Conor, C., 2022. Punctuated geochronology within a sustained high-temperature thermal regime in the southeastern Gawler Craton. Lithos, 430-431, 106860, 18p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.lithos.2022.106860","AGE_ENTRY_DATE":"2025-10-24","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15129","geometry":{"type":"Point","coordinates":[137.8165,-34.647]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15129,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034311","IGSN":"10.60494/fnka-5e52","SAMPLENO":11034311,"SAMPLE_ID":"RDD004a","AGE_MA":1557,"AGE_MA_UNCERTAINTY":8.3,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.58,"NUMBER_OF_ANALYSES":14,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"metamorphism","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Monazite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7900","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"metamorphic age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"foliated metamorphic rock","LITHOLOGY":"gneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"borehole specimen","SAMPLE_DESC":"Bockmann et al 2022: Qz-kfs-crd-sil-bt-pl-hem-ms gneiss. This sample is a metapelitic gneiss collected for geochronology and mineral equilibria modelling. It contains quartz, K-feldspar, cordierite, sillimanite, biotite, plagioclase, and hematite. The sample preserves cm-scale gneissic layering with sillimanite-biotite-hematite-rich and quartzcordierite-K-feldspar-rich layers. The foliation is defined by sillimanite and biotite (0.2-1 mm), with minor muscovite (up to 300 um). ","SAMPLING_FEATURE_NAME":"RDD004","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH938954","BOREHOLE_TOP_DEPTH_M":307.4,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-34.647,"LONG_GDA94":137.8165,"ELEV_M_AHD":0,"ACCURACY_M":10,"LOCATION_METHOD":"published report, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2015-05-15","SAMPLE_ORIGINATOR":"Bockmann, M.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73644","AGE_REF":"Bockmann, M.J., Hand, M., Morrissey, L.J., Payne, J.L., Hasterok, D., Teale, G., Conor, C., 2022. Punctuated geochronology within a sustained high-temperature thermal regime in the southeastern Gawler Craton. Lithos, 430-431, 106860, 18p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.lithos.2022.106860","AGE_ENTRY_DATE":"2025-10-24","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14709","geometry":{"type":"Point","coordinates":[142.357039,-31.860221]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14709,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677794","IGSN":"10.60494/ndjb-3m93","SAMPLENO":9677794,"SAMPLE_ID":"06/1E/1","AGE_MA":513.7,"AGE_MA_UNCERTAINTY":5.1,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.72,"NUMBER_OF_ANALYSES":4,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"Macquarie University","AGE_INTERPRETED_FROM_SOURCE":"mean of 4 out of 5 youngest grains","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"60 zircons lie along concordia with one exception. Ages between ca 400 and 3000 Ma, with a dominant late Panafrican age group between ca 490 and 600 Ma (age peaks of 561 > 591, 515 Ma) and a secondary Grenvillian population between ca 1050 and 1260 Ma (age peaks of 1180   1088 Ma). A lone zircon grain dated at 438 Ma is inferred to represent metamorphic zircon growth.","AGE_SOURCE":"MinView/Original publication","PROJECT":null,"STRATNO":75944,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU75944","STRAT_UNIT_NAME":"Scropes Range Formation","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Scropes Range Formation","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metasedimentary siliciclastic rock","LITHOLOGY":"quartzite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Glen et al 2017: The sample was extracted from the quartzite Scropes Range Formation, near the lower part of the formation. Conodont data suggest a Lancefieldian age in a unit that ranges in age from uppermost Cambrian (Payntonian-Datsonian) to upper Lower Ordovician (Castlemainian) (Percival et al., 2011).","SAMPLING_FEATURE_NAME":"06/1E/1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS922797","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-31.860221,"LONG_GDA94":142.357039,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Saeed, A.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75256; 66623","AGE_REF":"Glen, R.A., Fitzsimons, I.C.W., Griffin, W.L., Saeed, A., 2017. East Antarctic sources of extensive Lower-Middle Ordovician turbidites in the Lachlan Orogen, southern Tasmanides, eastern Australia. Australian Journal of Earth Sciences, 64(2), 143-224.; Greenfield, J.E., Gilmore, P.J., Mills, K.J., 2010. Explanatory notes for the Koonenberry Belt geological maps. Geological Survey of New South Wales, Bulletin, 35, 498pp.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099.2017.1273256; https://search.geoscience.nsw.gov.au/report/R00049567","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15166","geometry":{"type":"Point","coordinates":[133.067584,-29.6361395]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15166,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034257","IGSN":"10.60494/df4t-bt14","SAMPLENO":11034257,"SAMPLE_ID":"3825244","AGE_MA":2463,"AGE_MA_UNCERTAINTY":24,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":0.13,"NUMBER_OF_ANALYSES":7,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"GS21101-19, mount 2","ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: RESOlution 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 8900 series","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":84260,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU84260","STRAT_UNIT_NAME":"Skye Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"undetermined, possibly Aurora Tank Suite or Mobella Tonalite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Brown et al 2022: Sample 3825244 is a massive megacrystic K-feldspar-quartz granite with minor biotite, plagioclase, chlorite, muscovite, magnetite, and epidote (Fig. 52A). K-feldspar almost invariably shows microcline twinning. Antiperthite is relatively common in the sample, with plagioclase phenocrysts preserving lamellae of microcline. Coarse-grained quartz forms interlocking crystals with microcline and is sometimes myrmekitic. Feldspars are moderately to strongly altered to fine-grained sericite. Fine-grained sericitic intergrowths with muscovite form an association with subhedral fine- to medium-grained magnetite and very fine-grained epidote. Fine- to medium-grained biotite shows internal radiation damage and is sometimes replaced by fine-grained chlorite. Mineral proportions: K-feldspar (~45 vol%), quartz (~45 vol%), biotite (~5 vol%), minor phases (~5 vol%). ","SAMPLING_FEATURE_NAME":"NNL IL1 DDH 2","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH895146","BOREHOLE_TOP_DEPTH_M":135.33,"BOREHOLE_BASE_DEPTH_M":136.16,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-29.6361395,"LONG_GDA94":133.067584,"ELEV_M_AHD":160,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2021-08-16","SAMPLE_ORIGINATOR":"Reid, A.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"74363","AGE_REF":"Brown, D., Pawley, M., Williams, M., Reid, A., Jagodzinski, E., 2022. Zircon LA-ICP-MS geochronological and geochemical results from the central-western Gawler Craton. Geological Survey of South Australia. Report Book, 2022/00008, 139p.","AGE_PUBLICATION_LINKS":"https://pid.sarig.sa.gov.au/document/2022d112405","AGE_ENTRY_DATE":"2025-10-29","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15223","geometry":{"type":"Point","coordinates":[132.23727673,-31.8058464]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15223,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034258","IGSN":"10.60494/3240-8207","SAMPLENO":11034258,"SAMPLE_ID":"2115516","AGE_MA":1590,"AGE_MA_UNCERTAINTY":13,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.4,"NUMBER_OF_ANALYSES":17,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"metamorphism","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Monazite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"University of Tasmania","AGE_INTERPRETED_FROM_SOURCE":"metamorphic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":"older population at 1661 +/- 21 Ma (MSWD = 1.3, n = 11)","AGE_REMARK_FROM_SOURCE":"There is a near-continuum of 207Pb/206Pb ages across the range ca 1670-1550 Ma. The older population at ca 1650 Ma could be interpreted as possible peak metamorphism or inheritance.","AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":28826,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU28826","STRAT_UNIT_NAME":"Mulgathing Complex","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"quartzo-feldspathic gneiss, Nundroo Block, Fowler Domain","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"foliated metamorphic rock","LITHOLOGY":"felsic gneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Reid et al 2019: This sample is a quartzo-feldspathic gneiss that contains garnet, sillimanite, biotite, K-feldspar, plagioclase, quartz, hemo-ilmenite with Ti-oxide exsolution lamellae, magnetite, and accessory monazite and zircon. A pervasive foliation is defined by alternating garnet + biotite + sillimanite + opaque-rich and quartzo-feldspathic domains. Garnet porphyroblasts (<2 mm) are typically subidioblastic and inclusion-poor, partly replaced by biotite at some grain boundaries. Monazite dating and phase equilibria modelling was undertaken on this sample, which provides a constraint on the metamorphic evolution of the Nundroo Block. ","SAMPLING_FEATURE_NAME":"Nundroo 2 DDH","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH595299","BOREHOLE_TOP_DEPTH_M":366.1,"BOREHOLE_BASE_DEPTH_M":366.25,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-31.805846402,"LONG_GDA94":132.2372767335,"ELEV_M_AHD":24,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2015-02-11","SAMPLE_ORIGINATOR":"Reid, A.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73649","AGE_REF":"Reid, A.J., Halpin, J.A., Dutch, R.A., 2019. Timing and style of high-temperature metamorphism across the Western Gawler Craton during the Paleo- to Mesoproterozoic. Australian Journal of Earth Sciences, 66(8), 1085-1111.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099.2019.1602565","AGE_ENTRY_DATE":"2025-10-29","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15180","geometry":{"type":"Point","coordinates":[132.23727673,-31.8058464]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15180,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034259","IGSN":"10.60494/kge0-5g55","SAMPLENO":11034259,"SAMPLE_ID":"2115512","AGE_MA":1593,"AGE_MA_UNCERTAINTY":7,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.12,"NUMBER_OF_ANALYSES":36,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"metamorphism","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Monazite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"University of Tasmania","AGE_INTERPRETED_FROM_SOURCE":"metamorphic age phase 1","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":28826,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU28826","STRAT_UNIT_NAME":"Mulgathing Complex","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"garnet-biotite-bearing quartzo-feldspathic gneiss, Nundroo Block, Fowler Domain","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"foliated metamorphic rock","LITHOLOGY":"felsic gneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Reid et al 2019: This sample is a garnet-biotite-bearing quartzo-feldspathic gneiss that is comprised of garnet, biotite, plagioclase, K-feldspar, quartz, hemo-ilmenite and magnetite, with accessory pyrite, monazite, zircon and apatite. A pervasive foliation is defined by alternating garnet-biotite-rich and quartzo-feldspathic layers, with aligned biotite grains in the former and quartz ribbons in the latter. In altered zones, minor calcite is present. Garnet porphyroblasts are typically subidioblastic (<1mm) and inclusion-poor. Biotite is observed to partly replace garnet at some grain margins. Monazite dating was undertaken on this sample in order to determine the timing of metamorphism; however, like sample 2115492, the peak metamorphic assemblage is not very sensitive to P-T conditions, so no detailed phase equilibria modelling was performed. ","SAMPLING_FEATURE_NAME":"Nundroo 2 DDH","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH595299","BOREHOLE_TOP_DEPTH_M":312,"BOREHOLE_BASE_DEPTH_M":312.3,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-31.805846402,"LONG_GDA94":132.2372767335,"ELEV_M_AHD":24,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2015-02-11","SAMPLE_ORIGINATOR":"Reid, A.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73649","AGE_REF":"Reid, A.J., Halpin, J.A., Dutch, R.A., 2019. Timing and style of high-temperature metamorphism across the Western Gawler Craton during the Paleo- to Mesoproterozoic. 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And McNaughton, N. 1997 U-Pb Geochronology and Sm/Nd isotope characteristics of Proterozoic intrusive rocks in the Cloncurry District, Mt Isa Inlier, Australia. 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A more conservative estimate of the maximum depositional age can be based on the weighted mean 207-corrected date of 923 +/- 12 Ma (MSWD = 0.73) for the four youngest analyses in Group S.","AGE_SOURCE":"GSWA","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"sandstone, Mu Hills","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"medium-coarse grained siliciclastic rock","LITHOLOGY":"sandstone","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"MACDONALD_199420.1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS649041","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Amadeus Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-23.8496,"LONG_GDA94":128.88359,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Wingate, MTD, Kirkland, CL and Haines, PW 2014, 199420: sandstone, Mu Hills; Geochronology Record 1193: Geological Survey of Western Australia, 5p.","AGE_PUBLICATION_LINKS":"http://geodownloads.dmp.wa.gov.au/downloads/Geochron/pdfs/199420.1.pdf","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2020-11-16"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.6537","geometry":{"type":"Point","coordinates":[122.31467,-27.6516]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":6537,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU6660857","IGSN":"10273/AU6660857","SAMPLENO":6660857,"SAMPLE_ID":"153317.1","AGE_MA":2714,"AGE_MA_UNCERTAINTY":5,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"not captured","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"U/Pb not captured","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"age of igneous crystallization","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSWA","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":null,"LITHOLOGY":null,"MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"DUKETON_153317.1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS648618","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Yilgarn Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-27.6516,"LONG_GDA94":122.31467,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Geological Survey of Western Australia geochronology dataset","AGE_PUBLICATION_LINKS":"http://geodownloads.dmp.wa.gov.au/downloads/Geochron/pdfs/153317.1.pdf","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2021-01-14"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14885","geometry":{"type":"Point","coordinates":[140.3692879,-36.0648156]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14885,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9678093","IGSN":"10.60494/yh7k-bd57","SAMPLENO":9678093,"SAMPLE_ID":"2721788","AGE_MA":484.5,"AGE_MA_UNCERTAINTY":3.1,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1,"NUMBER_OF_ANALYSES":13,"CALCULATION_TYPE":"concordia (Ludwig)","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/235U and 206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: RESOlution 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7900","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"Magmatic crystallisation age. MSWD appears to relate to concordance, rather than data-point equivalence.","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Represents syn-Delamerian magmatism.","AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Delamerian granite","UNIT_NAME_SOURCE":"Delamerian granite, PADD 28","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"borehole specimen","SAMPLE_DESC":"Morgan (2019): Sample 2721788 comprises a 2-3 cm vein (biotite-absent) within a granitic host containing 10% biotite. Both are otherwise compositionally composed of quartz, plagioclase (both altered and non-altered), and chlorite alteration groundmass. Pyrrhotite grains (up to 600 um in diameter) are present in both the vein and the host, and are commonly surrounded with chlorite alteration halos.","SAMPLING_FEATURE_NAME":"PADD 28","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH868293","BOREHOLE_TOP_DEPTH_M":155.65,"BOREHOLE_BASE_DEPTH_M":155.9,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-36.0648156,"LONG_GDA94":140.3692879,"ELEV_M_AHD":64,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Foden, J.D.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75786","AGE_REF":"Morgan, B., 2019, Crustal evolution and exploration potential of Delamerian south-eastern South Australia. B.Sc. Honours thesis, University of Adelaide, 111p.","AGE_PUBLICATION_LINKS":"https://hdl.handle.net/2440/137023","AGE_ENTRY_DATE":"2024-07-12","AGE_LAST_UPDATED":"2024-12-09"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14672","geometry":{"type":"Point","coordinates":[142.376594,-31.86315]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14672,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677795","IGSN":"10.60494/fmjf-tq73","SAMPLENO":9677795,"SAMPLE_ID":"061B2-1 (Bilpa Conglomerate)","AGE_MA":501,"AGE_MA_UNCERTAINTY":8,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":50,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"Macquarie University","AGE_INTERPRETED_FROM_SOURCE":"maximum depositional age (sedimentary)","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Age taken from MinView","AGE_SOURCE":"MinView/Original publication","PROJECT":null,"STRATNO":41598,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU41598","STRAT_UNIT_NAME":"Bilpa Conglomerate","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Bilpa Conglomerate","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":"clast","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Sample 061B2-1 is a granite clast in Bilpa Conglomerate Member. Glen et al 2017 paraphrased: \"The Bilpa Conglomerate Member is very poorly sorted and polymictic, with rounded to angular, pebble- to boulder-size clasts in sandstone with a carbonate-rich cement. Pahl and Skikorska (2004) recorded a basal monomictic conglomerate with sedimentary clasts. Greenfield and Percival (2010, p. 139) noted a basal unit rich in clasts of “mafic volcanic,…phyllite, metasandstone, vein quartz, gabbro, and felsic tuff probably derived from locally underlying” Cambrian units, a middle, polymictic unit with significant abundant mafic volcanic clasts, and an upper polymictic unit with clasts of “quartz-veined rhyolite, plagioclase-phyric andesite, garnet-bearing felsic granitoid, gabbro, metasandstone, limestone and metapelite pebbles and sub-angular boulders.” Fossils in rare clasts of mudstone suggest a uppermost Cambrian age, around 494.5-496 Ma.\"","SAMPLING_FEATURE_NAME":"061B2-1 (Bilpa Conglomerate)","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS922798","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-31.86315,"LONG_GDA94":142.376594,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Saeed, A.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75256; 66623","AGE_REF":"Glen, R.A., Fitzsimons, I.C.W., Griffin, W.L., Saeed, A., 2017. East Antarctic sources of extensive Lower-Middle Ordovician turbidites in the Lachlan Orogen, southern Tasmanides, eastern Australia. Australian Journal of Earth Sciences, 64(2), 143-224.; Greenfield, J.E., Gilmore, P.J., Mills, K.J., 2010. Explanatory notes for the Koonenberry Belt geological maps. Geological Survey of New South Wales, Bulletin, 35, 498pp.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099.2017.1273256; https://search.geoscience.nsw.gov.au/report/R00049567","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14654","geometry":{"type":"Point","coordinates":[145.93992624,-30.43793188]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14654,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9677796","IGSN":"10.60494/8mqt-wt64","SAMPLENO":9677796,"SAMPLE_ID":"Kinchela G38","AGE_MA":504,"AGE_MA_UNCERTAINTY":4,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":2.1,"NUMBER_OF_ANALYSES":20,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"Macquarie University","AGE_INTERPRETED_FROM_SOURCE":"maximum depositional age of the sandstone","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"The quoted age of 504 +/- 4 Ma (95% confidence, MSWD = 2.1), approximating the maximum depositional age of the sandstone, is in fact derived from the youngest 20 analyses (see Figure 13f of Glen et al., 2013), not the youngest 5 as claimed in the Glen et al. (2013) text. Sample mislabelled \"Kinchela 938\" by Glen et al. (2013).","AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"Sandstone from tree roots","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"medium-coarse grained siliciclastic rock","LITHOLOGY":"sandstone","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Glen et al 2013: Sample of cleaved sandstone is from the roots of an upturned tree near the entrance of the driveway to Kinchela homestead","SAMPLING_FEATURE_NAME":"Kinchela G38","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS922799","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Thomson Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-30.4379318787,"LONG_GDA94":145.9399262395,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":"Collected from the roots of an upturned tree, near the entrance of the driveway to Kinchela homestead on the Bourke 1:100 000 sheet 8037","SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"68823; 69002","AGE_REF":"Glen, R.A., Korsch, R.J., Hegarty, R., Saeed, A., Djomani, Y.P., Costelloe, R.D., Belousova, E.A., 2013. Geodynamic significance of the boundary between the Thomson Orogen and the Lachlan Orogen, northwestern New South Wales and implications for Tasmanide tectonics. Australian Journal of Earth Sciences, 60(3), 371-412.; Glen, R.A., Saeed, A., Hegarty, R., Percival, I.G., Bodorkos, S., Griffin, W.L., 2010. Preliminary zircon data and tectonic framework for the Thomson Orogen, northwestern NSW. Geological Survey of New South Wales, Report, GS, 2010/0379, 26pp + map.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099.2013.782899; https://search.geoscience.nsw.gov.au/report/R00036358","AGE_ENTRY_DATE":"2024-05-29","AGE_LAST_UPDATED":"2024-05-29"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14848","geometry":{"type":"Point","coordinates":[141.43607641,-37.4503705]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14848,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9678102","IGSN":"10.60494/1bx0-9v42","SAMPLENO":9678102,"SAMPLE_ID":"GC8 G608","AGE_MA":480,"AGE_MA_UNCERTAINTY":1,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":4.1,"NUMBER_OF_ANALYSES":20,"CALCULATION_TYPE":"concordia (Ludwig)","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/235U and 206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"Magmatic crystallisation age (older analyses discarded).","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Age interpretation tentative. Samples of Ireland et al. (2002) reanalysed with newer standards","AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":7400,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU7400","STRAT_UNIT_NAME":"Glenelg River Metamorphic Complex","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Quartz porphyry dyke","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metamorphosed acid igneous rock","LITHOLOGY":"rhyolite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Ireland et al. (2002), Turner et al. (2022): Metamorphosed quartz porphyry, sampled on the Wando River, upstream from its junction with Boundary Creek in the Wando Vale area. This rock is a quartzofeldspathic schist from the garnet zone, originally thought to be an aplite dyke. It is one of a series of quartz porphyry (rhyolite) sills and dykes that continue into low grade rocks where the original porphyritic textures are evident (Wells, 1956). They are tentatively correlated with the Truro Volcanics (Ireland et al., 2002). A sample collected by Wells (1956) from the same dyke contains the S2 schistosity and cuts bedding. It is largely composed of quartz, feldspar and muscovite, with minor biotite, with the foliation defined by aligned muscovite and biotite. Quartz and feldspar phenocrysts are still evident, and large grey-brown apatite grains may be original igneous accessories. Rare poikilitic garnet porphyroblasts have grown during metamorphism.","SAMPLING_FEATURE_NAME":"GC8 G608","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS923493","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"VIC","COUNTRY":"AUS","LAT_GDA94":-37.4503704953,"LONG_GDA94":141.4360764054,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":"Wando River, upstream from junction with Boundary Creek, Wando Vale area.","SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Gibson, G.M.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75785","AGE_REF":"Turner, S., Ireland, T., Foden, J., Belousova, E., Worner, G., Keeman, J., 2022. A comparison of granite genesis in the Adelaide Fold Belt and Glenelg River Complex using U-Pb, Hf and O isotopes in zircon. 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Calibrating the middle and late Permian palynostratigraphy of Australia to the geologic time-scale via U-Pb zircon CA-IDTIMS dating. 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Geological Survey of Victoria Technical Record, 2002/2, 23p.","AGE_PUBLICATION_LINKS":"http://earthresources.efirst.com.au/product.asp?pID=754&cID=37&c=75443","AGE_ENTRY_DATE":"2024-07-15","AGE_LAST_UPDATED":"2024-09-27"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14961","geometry":{"type":"Point","coordinates":[140.2569989,-36.2453736]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14961,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9679004","IGSN":"10.60494/cehx-vj88","SAMPLENO":9679004,"SAMPLE_ID":"R2721785","AGE_MA":530,"AGE_MA_UNCERTAINTY":23,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.97,"NUMBER_OF_ANALYSES":36,"CALCULATION_TYPE":"upper concordia intercept","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"238U/206Pb and 207Pb/206Pb","MINERAL":"Titanite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: RESOlution 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7900","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"Groundmass titanite constraining magmatic crystallisation of alkali basalt. 46 analyses in total; 10 rejected due to insufficient signal. 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MLA imagery identified titanite as small irregular grains reaching 200 um in length, associated with calcite and green chlorite-altered biotite.","SAMPLING_FEATURE_NAME":"PADD 31","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH909847","BOREHOLE_TOP_DEPTH_M":132.75,"BOREHOLE_BASE_DEPTH_M":133,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-36.2453736,"LONG_GDA94":140.2569989,"ELEV_M_AHD":26,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"University of Adelaide","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75786","AGE_REF":"Morgan, B., 2019, Crustal evolution and exploration potential of Delamerian south-eastern South Australia. B.Sc. 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Y-intercept (initial 207Pb/206Pb) ~ 0.83 (visual estimate from Tera-Wasserburg plot).","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":26184,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU26184","STRAT_UNIT_NAME":"Truro Volcanics","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Truro Volcanics","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"basic volcanic rock","LITHOLOGY":"alkali basalt","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Morgan (2019): Sample 2721786 (132.00-132.75 m depth) is a porphyritic basalt abundant in amygdales. Smaller (~500 um) amygdales are round and filled with chlorite, while larger (5-8 mm) amygdales are filled with carbonate minerals. One section of the sample, believed to represent a large amygdale, is filled with a mesh of calcite crystals. Within the basaltic groundmass are plagioclase laths and minor biotite. Titanite was identified within the basaltic groundmass, but not within the amygdale infill. All titanite grains are of similar size, reaching ~80 um.","SAMPLING_FEATURE_NAME":"PADD 31","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH909847","BOREHOLE_TOP_DEPTH_M":132,"BOREHOLE_BASE_DEPTH_M":132.15,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-36.2453736,"LONG_GDA94":140.2569989,"ELEV_M_AHD":26,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"University of Adelaide","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75786","AGE_REF":"Morgan, B., 2019, Crustal evolution and exploration potential of Delamerian south-eastern South Australia. B.Sc. Honours thesis, University of Adelaide, 111p.","AGE_PUBLICATION_LINKS":"https://hdl.handle.net/2440/137023","AGE_ENTRY_DATE":"2024-07-26","AGE_LAST_UPDATED":"2024-12-09"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15230","geometry":{"type":"Point","coordinates":[137.7923394,-33.7014264]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15230,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034276","IGSN":"10.60494/7984-m752","SAMPLENO":11034276,"SAMPLE_ID":"2665676","AGE_MA":1513,"AGE_MA_UNCERTAINTY":26,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.57,"NUMBER_OF_ANALYSES":11,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: GeoLas 193nm ArF laser ablation system","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: MC-ICPMS","LABORATORY_NAME":"China Metallurgical Geology Bureau","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":17164,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU17164","STRAT_UNIT_NAME":"Spilsby Suite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Spilsby Suite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate intrusive rock","LITHOLOGY":"quartz monzonite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"borehole specimen","SAMPLE_DESC":"Reid et al 2020: Sample 2665676 is a quartz monzonite from drillhole PBD 28. The sample is a medium-grained granite with an equigranular texture. Quartz is generally undeformed, although some undulose extinction is present. Feldspar is dominantly K-feldspar as evidenced by abundant multiply twinned grains, although plagioclase is also present. Feldspar is variably altered, with sericite and a reddish tinge, likely hematite dusting. Biotite occurs as clots that are altered to chlorite. Opaque minerals are present including magnetite and pyrite.","SAMPLING_FEATURE_NAME":"PBD 28","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH890307","BOREHOLE_TOP_DEPTH_M":294,"BOREHOLE_BASE_DEPTH_M":295.4,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-33.7014264,"LONG_GDA94":137.7923394,"ELEV_M_AHD":6,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2018-10-02","SAMPLE_ORIGINATOR":"Reid, A.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73092","AGE_REF":"Reid, A., Zhao, Y., Wang, T., Zhao, X., 2020. Reconnaissance zircon U-Pb geochronology of the southeastern Olympic Cu-Au Province, South Australia. Geological Survey of South Australia. Report Book, 2020/00015, 69p.","AGE_PUBLICATION_LINKS":"https://pid.sarig.sa.gov.au/document/2020d032465","AGE_ENTRY_DATE":"2025-10-29","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14852","geometry":{"type":"Point","coordinates":[136.06781,-30.32106]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14852,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9678094","IGSN":"10.60494/gbm4-7823","SAMPLENO":9678094,"SAMPLE_ID":"RL 1","AGE_MA":827,"AGE_MA_UNCERTAINTY":6,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":null,"NUMBER_OF_ANALYSES":137,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Baddeleyite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"Magmatic crystallisation age, derived from 137 analyses of 66 crystals. Broadly supported by 51 analyses of comagmatic zircon, although the latter define a complex data-array owing to high-U matrix effects, as well as loss of radiogenic Pb.","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Baddeleyite in five separate analytical sessions: three on ANU SHRIMP I, two on ANU SHRIMP II. MSWD not specified. Supporting zircon analyses in two sessions on ANU SHRIMP II.","AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":72709,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU72709","STRAT_UNIT_NAME":"Gairdner Dolerite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Gairdner Dyke Swarm","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"basic intrusive rock","LITHOLOGY":"dolerite","MODE_OF_OCCURRENCE":"dyke","SAMPLE_TYPE":"core","SAMPLE_DESC":"Wingate et al. (1998): Core samples were obtained from several drill holes that intersected dolerite of the Gairdner Dyke Swarm, but only a medium-grained (2-3 mm) dolerite sample (671-673 m depth) from RL1 contained baddeleyite and zircon. Microscopic examination reveals mainly calcic plagioclase and sub-ophitic clinopyroxene (augite), with interstitial magnetite, ilmenite and quartz and trace amounts of apatite, baddeleyite and zircon. Augite exhibits slight to moderate alteration to actinolite and chlorite. Using standard magnetic and density separation techniques, 60 zircon and ~200 baddeleyite crystals and crystal fragments were recovered from ~750 g of crushed sample. Baddeleyite crystals are euhedral and tabular, inclusion-free, and range up to 150 um in length. Concentric euhedral zoning is visible in most crystals using cathodoluminescence imaging. Many crystals contain irregular or vermiform cavities and embayments that might be primary growth features, or else might reflect partial resorption via late-stage, silica-enriched fluids. Most RL1 zircons are euhedral, equant to elongate (aspect ratios up to 5:1), between ~80 and ~250 um in length and exhibit concentric growth zoning. Irregular cavities, similar to those observed in baddeleyite, are common; other zircons have a distinctly skeletal appearance and possess central channels. These textures, in both zircon and baddeleyite, are indicative of very rapid crystallization. Quartz, apatite and a ferromagnesian aluminosilicate (orthopyroxene?) were identified by electron probe within both cavities and channels. RL1 zircons exhibit variable degrees of metamictization. Almost all grains show some discolouration; many are strongly discoloured and/or possess areas opaque to transmitted light and show abundant cracks. Cathodoluminescence imaging shows that many crystals contain areas of normally luminescent zircon surrounded or transected bvy thick and irregular, non-luminescent rims and internal domains. The lack of cathodoluminescence in the latter areas is consistent with radiation damage due to high concentrations of U and Th (verified by SHRIMP analysis). Although relationships between these two zircon types in many crystals are ambiguous, we conclude, based on examination of most of the crystals in the sample that the luminescent zircon is original and that high-U, non-luminescent areas resulted from some form of alteration. In general, the non-luminescent areas do not coincide with the dark areas seen in transmitted light. Many zircons possess areas that are both normally luminescent as well as clear and colourless in transmitted light; it was anticipated that analysis of these areas would yield the most consistent age results.","SAMPLING_FEATURE_NAME":"RL 1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH520350","BOREHOLE_TOP_DEPTH_M":671,"BOREHOLE_BASE_DEPTH_M":673,"GEOLOGICAL_PROVINCE":"Stuart Shelf","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-30.32106,"LONG_GDA94":136.06781,"ELEV_M_AHD":126,"ACCURACY_M":25,"LOCATION_METHOD":"published report, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"ANU Research School of Earth Sciences","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"62664","AGE_REF":"Wingate, M.T.D., Campbell, I.H., Compston, W., Gibson, G.M., 1998. Ion microprobe U-Pb ages for Neoproterozoic basaltic magmatism in south-central Australia and implications for the breakup of Rodinia. Precambrian Research, 87, 135-159.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/S0301-9268(97)00072-7","AGE_ENTRY_DATE":"2024-07-12","AGE_LAST_UPDATED":"2024-09-27"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14861","geometry":{"type":"Point","coordinates":[139.83064,-35.3214205]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14861,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9678095","IGSN":"10.60494/r6g0-9g86","SAMPLENO":9678095,"SAMPLE_ID":"R2748662","AGE_MA":506.36,"AGE_MA_UNCERTAINTY":0.22,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.8,"NUMBER_OF_ANALYSES":7,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"isotope dilution: chemical abrasion and isotope dilution","ANALYTICAL_COLLECTION_SYSTEM":"TIMS: GV Isoprobe-T","LABORATORY_NAME":"Boise State University","AGE_INTERPRETED_FROM_SOURCE":"Magmatic crystallisation age.","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Quoted uncertainty includes that of the EARTHTIME U/Pb tracer.","AGE_SOURCE":"Unpublished GSSA compilation","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"diorite, Sherlock","UNIT_NAME_SOURCE":"diorite, Sherlock","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate intrusive rock","LITHOLOGY":"diorite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"borehole specimen","SAMPLE_DESC":"SARIG: Metamorphosed diorite.","SAMPLING_FEATURE_NAME":"SHR 11","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH908195","BOREHOLE_TOP_DEPTH_M":148.45,"BOREHOLE_BASE_DEPTH_M":149.5,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-35.3214205,"LONG_GDA94":139.83064,"ELEV_M_AHD":15,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Geological Survey of South Australia","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75784","AGE_REF":"Curtis, S., Payne, J., Crowley, J., Jagodzinski, L., Preiss, W., Pawley, M., Wise, T., Morrissey, L., McGee, L., 2022, Back-arc extension and inversion during the Delamerian Orogeny. IN: Folkes C.B. (compiler) Uncover Curnamona 2022: Symposium Presentations. Geological Survey of New South Wales Report GS, 2021/1733.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/report/R00034736","AGE_ENTRY_DATE":"2024-07-12","AGE_LAST_UPDATED":"2024-09-27"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14789","geometry":{"type":"Point","coordinates":[139.22336537,-34.70814196]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14789,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9678103","IGSN":"10.60494/d2w2-gw96","SAMPLENO":9678103,"SAMPLE_ID":"KFP001","AGE_MA":492.8,"AGE_MA_UNCERTAINTY":5.2,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":4.8,"NUMBER_OF_ANALYSES":20,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: RESOlution 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7900","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"Magmatic crystallisation age, defined by 20 of 21 analyses","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Constituent analyses dispersed along Concordia; possible minor/ancient loss of radiogenic Pb, in which case this age would be a minimum estimate.","AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Delamerian granite","UNIT_NAME_SOURCE":"KFP001 quartz diorite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate intrusive rock","LITHOLOGY":"quartz diorite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Morgan (2019): Abundant sericite alteration, with relict minerals indistinguishable. Lighter coloured regions are interpreted as ex-plagioclase phenocrysts up to 3 mm long. Darker coloured regions are chlorite alteration with irregular clinopyrozene, irregular quartz, chlorite and euhedral titanite. Minor pyrrhotite-chalcopyrite veining.","SAMPLING_FEATURE_NAME":"KFP001","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS923494","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-34.7081419582,"LONG_GDA94":139.223365369,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"published report, method unknown","LOCATION_DESC":"A surface grab sample located 57 km NW of Kanmantoo","SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Foden, J.D.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75786","AGE_REF":"Morgan, B., 2019, Crustal evolution and exploration potential of Delamerian south-eastern South Australia. B.Sc. 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Y-intercept (initial 207Pb/206Pb) ~ 0.78 (visual estimate from Tera-Wasserburg plot).","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Delamerian granite","UNIT_NAME_SOURCE":"KFP001 quartz diorite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate intrusive rock","LITHOLOGY":"quartz diorite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Morgan (2019): Abundant sericite alteration, with relict minerals indistinguishable. Lighter coloured regions are interpreted as ex-plagioclase phenocrysts up to 3 mm long. Darker coloured regions are chlorite alteration with irregular clinopyrozene, irregular quartz, chlorite and euhedral titanite. Minor pyrrhotite-chalcopyrite veining.","SAMPLING_FEATURE_NAME":"KFP001","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS923494","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-34.7081419582,"LONG_GDA94":139.223365369,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"published report, method unknown","LOCATION_DESC":"A surface grab sample located 57 km NW of Kanmantoo","SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Foden, J.D.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75786","AGE_REF":"Morgan, B., 2019, Crustal evolution and exploration potential of Delamerian south-eastern South Australia. B.Sc. Honours thesis, University of Adelaide, 111p.","AGE_PUBLICATION_LINKS":"https://hdl.handle.net/2440/137023","AGE_ENTRY_DATE":"2024-07-26","AGE_LAST_UPDATED":"2024-12-09"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14828","geometry":{"type":"Point","coordinates":[138.85839057,-34.9892702]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14828,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9678104","IGSN":"10.60494/7q2b-p790","SAMPLENO":9678104,"SAMPLE_ID":"Oakbank","AGE_MA":856,"AGE_MA_UNCERTAINTY":20,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.2,"NUMBER_OF_ANALYSES":10,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"Magmatic crystallisation age of granitic precursor of the gneiss.","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"unnamed granitic gneiss, Oakbank Inlier","UNIT_NAME_SOURCE":"granite gneiss, Oakbank Inlier","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metamorphosed acid igneous rock","LITHOLOGY":"felsic gneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Preiss et al. (2008): The granite gneiss from the Oakbank Inlier was sampled  from immediately north of a small creek, east of the township of Oakbank. The sample is part of a poorly exposed granite with a discontinuous strike length of ~500 m. The rock sample is a fine- to medium-grained K-feldspar-quartz-biotite-amphibole-bearing granite and contains a pervasive L-S tectonite fabric, primarily defined by biotite. No recent work has been carried out to ascertain the contact relationships of the granite with surrounding units, and no contacts were observed at the sampling locality. The zircons are typically 100-300 um in length, often with bipyramidal terminations. The grains typically have simple, well-developed oscillatory zoning from the core to the rim but do contain opaque inclusions and cracks. The morphology of the zircons suggests an igneous origin.","SAMPLING_FEATURE_NAME":"Oakbank Inlier","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS923495","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Stuart Shelf","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-34.989270202,"LONG_GDA94":138.8583905738,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":"Sampled immediately north of a small creek, east of the township of Oakbank","SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Preiss, W.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"64647","AGE_REF":"Preiss, W.V., Fanning, C.M., Szpunar, M., Burtt, A.C., 2008. Age and tectonic significance of the Mount Crawford Granite Gneiss and a related intrusive in the Oakbank Inlier, Mount Lofty Ranges. MESA Journal, 49, 38-49.","AGE_PUBLICATION_LINKS":"https://pid.sarig.sa.gov.au/document/2018d040317","AGE_ENTRY_DATE":"2024-07-12","AGE_LAST_UPDATED":"2024-12-09"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15242","geometry":{"type":"Point","coordinates":[137.81676726,-33.69857285]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15242,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034247","IGSN":"10.60494/strz-2z37","SAMPLENO":11034247,"SAMPLE_ID":"2665666","AGE_MA":1546,"AGE_MA_UNCERTAINTY":19,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.5,"NUMBER_OF_ANALYSES":15,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: GeoLas 193nm ArF laser ablation system","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: MC-ICPMS","LABORATORY_NAME":"China Metallurgical Geology Bureau","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"The data are all concordant or near concordant and cluster at c. 1550 Ma.","AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":26613,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU26613","STRAT_UNIT_NAME":"Hiltaba Suite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Hiltaba Suite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Reid et al 2020: This sample is a pink-coloured, extensively altered medium-grained granite. Quartz occurs as a framework mineral and as inclusions within feldspars. Undulose extinction is visible in some quartz crystals. Plagioclase is extensively replaced by sericite. K-feldpsar is less altered than the plagioclase, and occurs as coarse- to medium-grained polygonal crystals. Clots of biotite are completely replaced by green chlorite. Opaque species occur interstitially to the framework silicate minerals, and likely include magnetite. The reddish colour suggests hematite dusting throughout.This sample, taken from drillhole KD 4, was drilled by Phelps Dodge as part of the Katinka project and intersected calcsilicate-albite-magnetite veined and altered metasedimentary rock intruded by pink-red magnetite-bearing granite (Drummond et al., 2000).","SAMPLING_FEATURE_NAME":"KD 4","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH867350","BOREHOLE_TOP_DEPTH_M":250.25,"BOREHOLE_BASE_DEPTH_M":251.6,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-33.6985728518,"LONG_GDA94":137.8167672626,"ELEV_M_AHD":5,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2018-10-02","SAMPLE_ORIGINATOR":"Reid, A.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73092","AGE_REF":"Reid, A., Zhao, Y., Wang, T., Zhao, X., 2020. Reconnaissance zircon U-Pb geochronology of the southeastern Olympic Cu-Au Province, South Australia. Geological Survey of South Australia. Report Book, 2020/00015, 69p.","AGE_PUBLICATION_LINKS":"https://pid.sarig.sa.gov.au/document/2020d032465","AGE_ENTRY_DATE":"2025-10-29","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14808","geometry":{"type":"Point","coordinates":[140.2004701,-32.7098935]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14808,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9678058","IGSN":"10.60494/8mjr-jj35","SAMPLENO":9678058,"SAMPLE_ID":"AH20WH065","AGE_MA":484.2,"AGE_MA_UNCERTAINTY":4,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.7,"NUMBER_OF_ANALYSES":9,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: RESOlution 193 nm ArF excimer laser","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7900","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"magmatic emplacement","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"9/30 analyses used","AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Anabama Hill granodiorite","UNIT_NAME_SOURCE":"Anabama Hill granodiorite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granodiorite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"borehole specimen","SAMPLE_DESC":"Other_ID is the Geological Survey of South Australia sample number, searchable in SARIG.","SAMPLING_FEATURE_NAME":"AH DDH 5","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH886979","BOREHOLE_TOP_DEPTH_M":35.7,"BOREHOLE_BASE_DEPTH_M":36.5,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-32.7098935,"LONG_GDA94":140.2004701,"ELEV_M_AHD":281,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Geological Survey of South Australia","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75783","AGE_REF":"Hong, W., Fabris, A., Wise, T., Collins, A.S., Gilbert, S., Selby, D., Curtis, S., Reid, A.J., 2023. 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(2023): White mica-quartz-pyrite vein cutting chlorite-epidote-altered granodiorite. Other_ID is the Geological Survey of South Australia sample number, searchable in SARIG.","SAMPLING_FEATURE_NAME":"AH DDH 6","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH886980","BOREHOLE_TOP_DEPTH_M":197.6,"BOREHOLE_BASE_DEPTH_M":197.9,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-32.7168775,"LONG_GDA94":140.2103201,"ELEV_M_AHD":320,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Geological Survey of South Australia","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75783","AGE_REF":"Hong, W., Fabris, A., Wise, T., Collins, A.S., Gilbert, S., Selby, D., Curtis, S., Reid, A.J., 2023. 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(2023): Massive quartz vein containing coarse-grained pyrite and muscovite, and fine-grained disseminated molybdenite. Other_ID is the Geological Survey of South Australia sample number, searchable in SARIG.","SAMPLING_FEATURE_NAME":"ANDDH 2","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH886927","BOREHOLE_TOP_DEPTH_M":110.4,"BOREHOLE_BASE_DEPTH_M":110.8,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-32.7183915,"LONG_GDA94":140.2088881,"ELEV_M_AHD":327,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Geological Survey of South Australia","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75783","AGE_REF":"Hong, W., Fabris, A., Wise, T., Collins, A.S., Gilbert, S., Selby, D., Curtis, S., Reid, A.J., 2023. 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Previous Rb-Sr age of 504 +/- 8 Ma (initial 87Sr/86Sr = 0.717).","SAMPLING_FEATURE_NAME":"R2078863","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS923504","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-35.5369715,"LONG_GDA94":138.6852502,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Geological Survey of South Australia","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75784","AGE_REF":"Curtis, S., Payne, J., Crowley, J., Jagodzinski, L., Preiss, W., Pawley, M., Wise, T., Morrissey, L., McGee, L., 2022, Back-arc extension and inversion during the Delamerian Orogeny. IN: Folkes C.B. (compiler) Uncover Curnamona 2022: Symposium Presentations. Geological Survey of New South Wales Report GS, 2021/1733.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/report/R00034736","AGE_ENTRY_DATE":"2024-07-12","AGE_LAST_UPDATED":"2024-09-27"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14984","geometry":{"type":"Point","coordinates":[136.99723656,-35.97137042]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14984,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9679033","IGSN":"10.60494/70jw-n671","SAMPLENO":9679033,"SAMPLE_ID":"SS2000-11","AGE_MA":487.4,"AGE_MA_UNCERTAINTY":3.5,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.25,"NUMBER_OF_ANALYSES":3,"CALCULATION_TYPE":"isochron","GEOLOGICAL_EVENT":"cooling","ISOTOPIC_SYSTEM":"Rb/Sr","ISOTOPIC_RATIO":"87Rb/86Sr and 87Sr/86Sr","MINERAL":"Muscovite; Biotite; Apatite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"isotope dilution: isotope dilution","ANALYTICAL_COLLECTION_SYSTEM":"TIMS: Finnigan MAT 262","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"Foden et al. (2002) interpreted this internal isochron to reflect cooling of the S-type Stun Sail Boom Granite through ~350 C.","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Sample is mislabelled \"5511\" in Foden et al. (2002, Table 5), and abbreviated to \"SS11\" in their Table 4. Table 2 has the full identifier, which was used to extract location data from Foden et al. (2020).","AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":29851,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU29851","STRAT_UNIT_NAME":"Stun Sail Boom Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Stun Sail Boom Granite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Foden et al. (2002): At Vivonne Bay and Stun Sail Boom River, the Kanmantoo Group is intruded by a K-feldspar megacrystic biotite granite (represented by R156379) of transitional I- to S-type composition. This granite has limited on-land exposure and crops out at a series of headlands between Vivonne Bay and Remarkable Rocks 30 km to the W. At the Vivonne Bay–Stun Sail Boom River localities, the host Kanmantoo Group rocks are metamorphosed to upper amphibolite facies and are partially melted to produce a locally mobilised diatexitic biotite granodiorite. This granodiorite is fairly biotite rich and is host to numerous enclaves of unmelted Kanmantoo Group metasedimentary rocks. These enclaves are clearly of lithologies that were less favourable for melt production at the prevailing temperatures and comprise both quartz-rich lithologies and also very biotite-rich melanosome fragments. These latter are the same composition as some in situ melanosome layers bordering the biotite granodiorite and are composed of biotite, plagioclase (An34-12), minor quartz and abundant accessory apatite, zircon and monazite. The locally produced biotite granodiorite melt was obviously contemporaneous with the megacrystic granite intrusion, as there are good examples of mingling of fingers of the porphyritic granite with the grey biotite granodiorite. The biotite granodiorite has a moderately developed foliation, which defines dips of 30-50 degrees to the N. Development of the migmatite complex and emplacement of the megacrystic granite (503 +/- 4 Ma, referable to sample R156379) are regarded as syn-Delamerian orogenic events. In addition to the megacrystic granite and the biotite granodiorite, these outcrops also expose bodies of highly leucocratic granite. These biotite-free rocks are composed of quartz, K-rich microcline and muscovite and contain numerous patches of almandine-rich garnet granite. These garnet leucogranites locally mingle with the biotite granodiorite and are taken to represent extracted and fractionated near minimum-temperature melts. The occurrence of muscovite as a solidus phase in these liquids constrains their pressure to be above 3 kbar (e.g. Dymoke & Sandiford 1992). [NOTE: Foden et al. (2002) attributed a U-Pb SHRIMP zircon date of 504 +/- 8 Ma for the garnet-bearing leucogranite to Fanning (1990), but Fanning (1990) presented no such data, nor is there any listing of a correlatable sample or result in published or unpublished GSSA databases.] Current sample SS2000-11 yielded muscovite, biotite and apatite Rb–Sr data defining an internal isochron indicating an age of 487.4 +/- 3.5 Ma (95% confidence, MSW = 0.25, initial 87Sr/86Sr = 0.72062), probably reflecting the age of cooling below 350C.","SAMPLING_FEATURE_NAME":"SS2000-11","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS923936","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-35.9713704243,"LONG_GDA94":136.9972365638,"ELEV_M_AHD":null,"ACCURACY_M":200,"LOCATION_METHOD":"published report, method unknown","LOCATION_DESC":"Stun Sail Boom River. Location from Foden et al. (2020).","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Foden, J.D.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"72642","AGE_REF":"Foden, J.D., Elburg, M.A., Turner, S.P., Sandiford, M., O'Callaghan, J., Mitchell, S., 2002. Granite production in the Delamerian Orogen, South Australia. Journal of the Geological Society of London, 159(5), 557-575.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1144/0016-764901-099","AGE_ENTRY_DATE":"2024-08-06","AGE_LAST_UPDATED":"2024-09-27"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14985","geometry":{"type":"Point","coordinates":[135.95961753,-28.39023736]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14985,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9679034","IGSN":"10.60494/9h5j-fz32","SAMPLENO":9679034,"SAMPLE_ID":"02PD1","AGE_MA":513,"AGE_MA_UNCERTAINTY":0.8,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":null,"NUMBER_OF_ANALYSES":1,"CALCULATION_TYPE":"single analysis","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Titanite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"isotope dilution: isotope dilution","ANALYTICAL_COLLECTION_SYSTEM":"TIMS: Finnigan MAT 262","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"Single analysis interpreted to reflect magmatic crystallisation; 206Pb/238U date (at 2sigma) compiled in Table 3 by Foden et al. (2006).","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Foden et al. (2006) preferred the 206Pb/238U date to the Concordia age of 513.2 +/- 0.8 Ma given in their Figure 6.","AGE_SOURCE":null,"PROJECT":null,"STRATNO":25686,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU25686","STRAT_UNIT_NAME":"Bungadillina Monzonite","INFORMAL_UNIT_NAME":"Bungadillina monzonite","UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate intrusive rock","LITHOLOGY":"monzonite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Bungadillina monzonite (also inaccurate \"Bungalina Monzonite\" Table 1 of Foden et al. (2002)). SampleID = 9588 in Morrison & Foden (1990), listed as PD9588 and 02PD1 by Foden et al. (2006). No specific rock description given.","SAMPLING_FEATURE_NAME":"PD9588","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS923937","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-28.3902373571,"LONG_GDA94":135.9596175317,"ELEV_M_AHD":null,"ACCURACY_M":1000,"LOCATION_METHOD":"published report, method unknown","LOCATION_DESC":"Peak and Denison Ranges; \"Bungadillina monzonite\". Table 1 of Foden et al. (2006) is inaccurate, superseded by estimated centre of Fig. 2 (approximated as AGD66 135deg57.5min E, 28deg23.5min S) of Morrison & Foden (1990). Foden et al. (2020) does not specify a location for this sample.","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"University of Adelaide","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73610","AGE_REF":"Foden, J., Elburg, M.A., Dougherty-Page, J., Burtt, A., 2006. The timing and duration of the Delamerian Orogeny: Correlation with the Ross Orogen and implications for Gondwana assembly. Journal of Geology, 114(2), 189-210.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1086/499570","AGE_ENTRY_DATE":"2024-08-06","AGE_LAST_UPDATED":"2024-09-27"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15250","geometry":{"type":"Point","coordinates":[133.0589782,-30.6371543]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15250,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034285","IGSN":"10.60494/mjzt-7855","SAMPLENO":11034285,"SAMPLE_ID":"R1472763","AGE_MA":1588,"AGE_MA_UNCERTAINTY":30,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.96,"NUMBER_OF_ANALYSES":24,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"cooling","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Apatite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"cooling through 550-350* C","OTHER_AGE_INTERPRETED_FROM_SOURCE":"Concordia intercept: 1572 +/- 68 Ma (MSWD 0.71)","AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":28826,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU28826","STRAT_UNIT_NAME":"Mulgathing Complex","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"gabbronorite, drillhole Tal 65","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"basic intrusive rock","LITHOLOGY":"gabbronorite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"drill chips/cuttings","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"TAL 65","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH881521","BOREHOLE_TOP_DEPTH_M":56,"BOREHOLE_BASE_DEPTH_M":59.5,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-30.6371543,"LONG_GDA94":133.0589782,"ELEV_M_AHD":174,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2007-03-22","SAMPLE_ORIGINATOR":"Hall, J.W.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73434","AGE_REF":"Hall, J.W., Glorie, S., Reid, A.J., Boone, S.C., Collins, A.S., Gleadow, A., 2018. An apatite U-Pb thermal history map for the northern Gawler Craton, South Australia. Geoscience Frontiers, 9(5), 1293-1308.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.gsf.2017.12.010","AGE_ENTRY_DATE":"2025-10-29","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15172","geometry":{"type":"Point","coordinates":[136.79706986,-30.47013419]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15172,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034228","IGSN":"10.60494/6tpc-f186","SAMPLENO":11034228,"SAMPLE_ID":"2111460","AGE_MA":1591.8,"AGE_MA_UNCERTAINTY":0.7,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.6,"NUMBER_OF_ANALYSES":5,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"isotope dilution: chemical abrasion and isotope dilution","ANALYTICAL_COLLECTION_SYSTEM":"TIMS: GV Isoprobe-T","LABORATORY_NAME":"Boise State University","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":26613,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU26613","STRAT_UNIT_NAME":"Hiltaba Suite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"granite BLANCHE 1, Hiltaba Suite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"monzogranite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Jagodzinski et al 2021: (taken from Purvis (2005) in Meyer (2006)). Relatively fresh monzogranite with some sericite-chlorite-clay-anatase alteration, partly fresh accessories (hornblende, biotite, magnetite, titanite, apatite and zircon) and open parallel fractures. Hand specimen: Pale red granitoid with open parallel fractures normal to the core axis. This sample contains largely fresh hornblende and partly fresh biotite. Orthoclase up to 10 mm in grain size has pale hematite staining and plagioclase up to 8 mm has areas with sparse sericite. The quartz is partly granular but also has some subvolcanic characteristics, mostly with rounded, slightly bipyramidal grains with abundant plagioclase along resorption channels, partly as extensions of larger grains and partly fine-grained. Biotite is mostly altered to chlorite +/- vermiculite and anatase, with weak chlorite alteration. Green hornblende also has weak chlorite alteration, although this is mostly fresh, and has inclusions of oxide, apatite and zircon. Separate titanite grains and titanite-magnetite aggregates are mostly fresh, with some leucoxene in titanite, and aggregates also contain apatite and zircon. Very rare sulfide occurs in opaque oxide. The fractures in this sample are open and do not contain low-temperature hydrothermal minerals as seen in fractures where the granite is more altered. ","SAMPLING_FEATURE_NAME":"Blanche 1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH551593","BOREHOLE_TOP_DEPTH_M":1563.1,"BOREHOLE_BASE_DEPTH_M":1564.6,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-30.470134194,"LONG_GDA94":136.7970698638,"ELEV_M_AHD":96,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Crowley, J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73651","AGE_REF":"Jagodzinski, E.A., Crowley, J.L., Reid, A.J., Wade, C.E., Bockmann, M.J., 2021. High-precision CA-TIMS dating of the Hiltaba Suite, Gawler Craton. Geological Survey of South Australia. Report Book, 2021/00002, 57p.","AGE_PUBLICATION_LINKS":"https://pid.sarig.sa.gov.au/document/d21034143","AGE_ENTRY_DATE":"2025-10-29","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15239","geometry":{"type":"Point","coordinates":[137.3016807,-30.3980914]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15239,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034229","IGSN":"10.60494/63d0-5k51","SAMPLENO":11034229,"SAMPLE_ID":"2131359","AGE_MA":1592.6,"AGE_MA_UNCERTAINTY":0.7,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.4,"NUMBER_OF_ANALYSES":6,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"isotope dilution: chemical abrasion and isotope dilution","ANALYTICAL_COLLECTION_SYSTEM":"TIMS: GV Isoprobe-T","LABORATORY_NAME":"Boise State University","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":26613,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU26613","STRAT_UNIT_NAME":"Hiltaba Suite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"biotite granite, Hiltaba Suite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"quarter core","SAMPLE_DESC":"Jagodzinski et al 2021: biotite granite. This sample is a medium grained, equigranular granite. K-feldspar is red in colour due to hematite alteration and is partly replaced by chlorite-sericite (white mica). The plagioclase is less abundant but is also sericite altered. Quartz shows weak undulose extinction. There is minor biotite in the sample, however, this is strongly altered to dark clots of chlorite and/or clays. The rock also contains elongate titanite crystals.  ","SAMPLING_FEATURE_NAME":"BRD 1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH883362","BOREHOLE_TOP_DEPTH_M":816,"BOREHOLE_BASE_DEPTH_M":817,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-30.3980914,"LONG_GDA94":137.3016807,"ELEV_M_AHD":50,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Crowley, J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73651","AGE_REF":"Jagodzinski, E.A., Crowley, J.L., Reid, A.J., Wade, C.E., Bockmann, M.J., 2021. High-precision CA-TIMS dating of the Hiltaba Suite, Gawler Craton. Geological Survey of South Australia. Report Book, 2021/00002, 57p.","AGE_PUBLICATION_LINKS":"https://pid.sarig.sa.gov.au/document/d21034143","AGE_ENTRY_DATE":"2025-10-29","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15247","geometry":{"type":"Point","coordinates":[133.7903502,-29.9253323]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15247,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034230","IGSN":"10.60494/n0ja-9a40","SAMPLENO":11034230,"SAMPLE_ID":"R2131395","AGE_MA":1983,"AGE_MA_UNCERTAINTY":38,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.19,"NUMBER_OF_ANALYSES":11,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"cooling","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Apatite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"cooling through 550-350* C","OTHER_AGE_INTERPRETED_FROM_SOURCE":"Concordia intercept: 1994 +/- 96 Ma (MSWD 2.7)","AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":28826,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU28826","STRAT_UNIT_NAME":"Mulgathing Complex","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"granite, drillhole CH 1","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"drill chips/cuttings","SAMPLE_DESC":"GSSA drillhole database: Medium grained massive granite with hornblende/olivine gabbro.","SAMPLING_FEATURE_NAME":"CH 1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH880705","BOREHOLE_TOP_DEPTH_M":68,"BOREHOLE_BASE_DEPTH_M":80,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-29.9253323,"LONG_GDA94":133.7903502,"ELEV_M_AHD":181,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2015-05-18","SAMPLE_ORIGINATOR":"Hall, J.W.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73434","AGE_REF":"Hall, J.W., Glorie, S., Reid, A.J., Boone, S.C., Collins, A.S., Gleadow, A., 2018. An apatite U-Pb thermal history map for the northern Gawler Craton, South Australia. Geoscience Frontiers, 9(5), 1293-1308.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.gsf.2017.12.010","AGE_ENTRY_DATE":"2025-10-29","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15174","geometry":{"type":"Point","coordinates":[133.7903502,-29.9253323]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15174,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034231","IGSN":"10.60494/2rr4-a821","SAMPLENO":11034231,"SAMPLE_ID":"R1107203","AGE_MA":2458,"AGE_MA_UNCERTAINTY":16,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.22,"NUMBER_OF_ANALYSES":6,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"metamorphism","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: New Wave UP-213 Nd:YAG laser probe","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7500","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"timing of metamorphism","OTHER_AGE_INTERPRETED_FROM_SOURCE":"2500 +/- 0 = Maximum depositional age","AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":24842,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU24842","STRAT_UNIT_NAME":"Christie Gneiss","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"foliated metamorphic rock","LITHOLOGY":"gneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"drill chips/cuttings","SAMPLE_DESC":"Reid et al 2007: The main rock types in the Commonwealth Hill anomaly are pyroxene granulite, charnockite, granitic gneiss and garnet gneiss. Metasedimentary material includes garnet gneiss and rare mica schist. Chips from an interval logged as ‘granite’ from drill hole CH 1 were sampled for geochronology and consisted of a composite over 8 m of rock chips. This sample comprised granitic-looking chips interspersed with weathered chips of a yellow to brown colour. These weathered chips were hand-picked out of the mineral separate to ensure no contamination of the final zircon population from possible cover sequences. This is likely to represent cover material sampled as a result of the percussion drilling technique. PIMA analysis of a powdered sample of this material indicated the presence of nontronite and montrolillenite (A. Mauger, pers. comm. 2006), which are typically the result of weathering of ultramafic/mafic rocks.","SAMPLING_FEATURE_NAME":"CH 1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH880705","BOREHOLE_TOP_DEPTH_M":80,"BOREHOLE_BASE_DEPTH_M":86,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-29.9253323,"LONG_GDA94":133.7903502,"ELEV_M_AHD":181,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2006-08-08","SAMPLE_ORIGINATOR":"Reid, A.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"76125","AGE_REF":"Reid, A., 2007. Commonwealth Hill magnetic anomaly, northwestern Gawler Craton: an interpretation and results of zircon LA-ICPMS U–Pb dating. Geological Survey of South Australia. 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R., 2002, 139463: pegmatite-banded gneiss, Bunty Well; in Compilation of geochronology data, 2001: Western Australia Geological Survey, Record 2002/2, p. 189-192.","AGE_PUBLICATION_LINKS":"http://geodownloads.dmp.wa.gov.au/downloads/Geochron/pdfs/139463.1.pdf","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2020-11-16"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.7035","geometry":{"type":"Point","coordinates":[115.41945,-23.6274]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":7035,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU6661132","IGSN":"10273/AU6661132","SAMPLENO":6661132,"SAMPLE_ID":"208318.1","AGE_MA":1682,"AGE_MA_UNCERTAINTY":4,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.03,"NUMBER_OF_ANALYSES":12,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"age of igneous crystallization","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSWA","PROJECT":null,"STRATNO":37648,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU37648","STRAT_UNIT_NAME":"Durlacher Supersuite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Durlacher Supersuite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"WINNING POOL_208318.1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS648893","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Gascoyne Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-23.6274,"LONG_GDA94":115.41945,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Wingate, MTD, Kirkland, CL and Korhonen, FJ 2013, 208318: metagranite, Brown Well; Geochronology Record 1174: Geological Survey of Western Australia, 4p.","AGE_PUBLICATION_LINKS":"http://geodownloads.dmp.wa.gov.au/downloads/Geochron/pdfs/208318.1.pdf","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2020-11-16"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.1458","geometry":{"type":"Point","coordinates":[137.17563307,-23.60063102]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":1458,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1839547","IGSN":"10273/AU1839547","SAMPLENO":1839547,"SAMPLE_ID":"2005089521","AGE_MA":1777,"AGE_MA_UNCERTAINTY":19,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":2,"CALCULATION_TYPE":"not captured","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"GA6010","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":null,"AGE_INTERPRETED_FROM_SOURCE":"maximum depositional age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Zircon Description  The sample is from BMR drillcore Hay River 2 which penetrated basement below the Erromanga basin.  There is no nearby exposure of basement for context but aeromagnetics suggest continuity with the Arunta region.  Zircons in the sample have rounded, pitted and broken external forms truncating internal zoning, consistent with a mature detrital zircon suite (Fig. 1).  Internal zoning patterns are highly variable.  A random split of grains not sorted for quality contained a high proportion of excessively cracked and physically soft grains (topographic lows in polishing) indicating risk of a high proportion of isotopic discordance.  Accordingly analysis was restricted to non-magnetic grains of higher quality.  U-Pb Isotopic Results  A total of 79 individual analyses was collected.  Of these, 6 are more than 10% discordant and are not considered further.  Seven analyses have age errors greater than ± 60 Ma (2¿) from a combination of low U contents and high common Pb, and these are not considered useful age measurements.  The remaining 64 analyses of 63 grains provide a useful detrital zircon age spectrum (Fig. 2).  The detrital ages are dominated by two major groupings (Fig. 3) at ca. 1770-2000 Ma (30 grains, 47% of the data) and ca. 2400-2550 Ma (26 grains, 41% of data).  Outside these groups there are two grains at ca. 2150 Ma and a thin scatter of earlier Archaean ages in the range ca. 2600-2950 Ma.  Detail of the youngest end of the spectrum is provided in Figure 4.  The age of the youngest individual grain 22 has been reproduced twice with a mean of 1773 ± 25 Ma (2¿), the relatively large uncertainty reflecting a U content below 75 ppm.  A second grain 68 has a similar age of 1785 ± 30 Ma (2¿) and is statistically coherent with grain 22 (MSWD 1.6).  The next-oldest grain 59 has a clearly resolved age of 1826 ± 14 Ma (2¿).  Thus the youngest statistically definable group comprises two grains 22 and 68 which have a joint mean age of 1777 ± 19 Ma (2¿) and this provides an estimate of the maximum deposition age of the sediment. 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Geochronological, geochemical and Pb isotopic compositions of Tasmanian granites (southeast Australia): Controls on petrogenesis, geodynamic evolution and tin mineralisation. 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Geochronology Record 301: Geological Survey of Western Australia, 5p.","AGE_PUBLICATION_LINKS":"http://geodownloads.dmp.wa.gov.au/downloads/Geochron/pdfs/142951.1.pdf","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2020-11-16"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.7785","geometry":{"type":"Point","coordinates":[117.02222,-20.6594]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":7785,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1598846","IGSN":"10273/AU1598846","SAMPLENO":1598846,"SAMPLE_ID":"127330","AGE_MA":3058,"AGE_MA_UNCERTAINTY":7,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.24,"NUMBER_OF_ANALYSES":11,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"maximum depositional age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSWA","PROJECT":null,"STRATNO":27160,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU27160","STRAT_UNIT_NAME":"Gorge Creek Group","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Cleaverville Formation","MATERIAL_TYPE":"sediment","LITHOLOGY_GROUP":"siliciclastic sedimentary rock","LITHOLOGY":"sediment","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"volcaniclastic sediment","SAMPLING_FEATURE_NAME":"127330","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS101814","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Pilbara Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-20.6594,"LONG_GDA94":117.02222,"ELEV_M_AHD":null,"ACCURACY_M":50,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"1996-09-21","SAMPLE_ORIGINATOR":"Nelson, D.R.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Nelson, DR 1998, 127330: volcaniclastic sedimentary rock, Cleaverville; Geochronology Record 442: Geological Survey of Western Australia, 4p.","AGE_PUBLICATION_LINKS":"http://geodownloads.dmp.wa.gov.au/downloads/Geochron/pdfs/127330.1.pdf","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2020-11-16"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15035","geometry":{"type":"Point","coordinates":[143.92462298,-17.02490142]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15035,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9402790","IGSN":"10.60494/wctw-2y31","SAMPLENO":9402790,"SAMPLE_ID":"BB6023B","AGE_MA":1653,"AGE_MA_UNCERTAINTY":6,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.33,"NUMBER_OF_ANALYSES":28,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"GA6506","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Geoscience Australia","AGE_INTERPRETED_FROM_SOURCE":"Maximum depositional age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":27758,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU27758","STRAT_UNIT_NAME":"Dargalong Metamorphics","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Dargalong Metamorphics","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metamorphic rock","LITHOLOGY":"gneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Crystalline basement intersected in drillhole Karumba KAN_0002_1 is represented by dark grey, strongly deformed, fine- to medium-grained garnet–biotite gneiss that has been assigned to the Dargalong Metamorphics (referred to as ‘Dargalong Metamorphic Group’ in some reports — e.g., Withnall et al., 1997, various pages) on the solid geology coverage, based on a similar magnetic response to outcrops of the same unit ca 9 km to the southeast.\r\nThe gneiss consists mainly of quartz, plagioclase, and biotite. Original quartz grains have recrystallised to aggregates of small (ca 0.4 mm), anhedral grains with highly undulose extinction. Plagioclase is the dominant, possibly sole feldspar but is subordinate to quartz. It is slightly–moderately altered and forms anhedral grains in the groundmass and scattered subhedral porphyroclasts up to ca 2 mm in length. Biotite has two distinct modes of occurrence: 1) as relatively coarse grains with undulose extinction and commonly bent/curved cleavage planes, and 2) as recrystallised aggregates concentrated in irregular lenticles.\r\nThe gneiss contains minor garnet, as scattered porphyroblasts up to ca 2 mm in diameter. Other minor and accessory minerals include opaques and zircon. Myrmekite is present at the contacts between some feldspar grains. The gneiss is moderately to extensively altered. Calcite, sericite/muscovite (both mainly after plagioclase), and chlorite (mainly after biotite and garnet) are the most common secondary minerals.","SAMPLING_FEATURE_NAME":"KAN_0002_1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH887353","BOREHOLE_TOP_DEPTH_M":104.8,"BOREHOLE_BASE_DEPTH_M":107.9,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-17.0249014221,"LONG_GDA94":143.9246229847,"ELEV_M_AHD":155,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Kositcin, N.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75850","AGE_REF":"Kositcin, N., Bultitude, R.J., 2024. New SHRIMP U-Pb ages from the Georgetown and Cairns regions, Queensland: NE Queensland Solid Geology Project, 2023-2024. Geoscience Australia. Record, 2024/51, 118p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.26186/149794","AGE_ENTRY_DATE":"2024-09-24","AGE_LAST_UPDATED":"2026-02-18"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14267","geometry":{"type":"Point","coordinates":[148.71252,-36.17405]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14267,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU2168513","IGSN":"10273/AU2168513","SAMPLENO":2168513,"SAMPLE_ID":"BB19","AGE_MA":428.7,"AGE_MA_UNCERTAINTY":4.3,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":24,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"Cootralantra Granodiorite crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Pooled age from 2 analytical sessions for the Cootralantra pluton (sample BB19). Note: the reported 95% uncertainty for the combined age in Table 2 of Ickert & Williams (2011) is 3.9, whereas Table 1 reports 4.3.","AGE_SOURCE":"MinView/Original publication(s)","PROJECT":null,"STRATNO":27134,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU27134","STRAT_UNIT_NAME":"Cootralantra Granodiorite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Cootralantra","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granodiorite","MODE_OF_OCCURRENCE":"pluton","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"granodiorite. S-type granite from Berridale batholith. Ickert and Williams 2011 paraphrased: \"The dominant rock types in the Berridale–Kosciuszko region are granodiorite and granite, with subordinate tonalite. Gabbroic and dioritic rocks are rare and only occur in association with plutons of the Jindabyne Suite, or as small stocks in the metasedimentary screen between the Berridale and Kosciuszko Batholiths (Hine et al. 1978). The S-type Cootralantra Granodiorite is composed of a large number (at least a dozen) of individual intrusions that cannot be distinguished on the basis of chemical composition or systematic lithological differences.","SAMPLING_FEATURE_NAME":"BB19_Nd","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS574890","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Lachlan Region","REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-36.17405,"LONG_GDA94":148.71252,"ELEV_M_AHD":1300,"ACCURACY_M":200,"LOCATION_METHOD":"other method","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Champion, D.C.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"67060","AGE_REF":"Ickert, R.B., Williams, I.S., 2011. U-Pb zircon geochronology of Silurian-Devonian granites in southeastern Australia: implications for the timing of the Benambran Orogeny and the I-S dichotomy. Australian Journal of Earth Sciences, 58(5), 501-516.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099.2011.562922","AGE_ENTRY_DATE":"2024-02-23","AGE_LAST_UPDATED":"2024-03-21"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.13763","geometry":{"type":"Point","coordinates":[140.03324798,-20.58973043]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":13763,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU2678694","IGSN":"10273/AU2678694","SAMPLENO":2678694,"SAMPLE_ID":"ASMI0089","AGE_MA":1531,"AGE_MA_UNCERTAINTY":14,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.69,"NUMBER_OF_ANALYSES":4,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"metamorphism","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"GA6366","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Geoscience Australia","AGE_INTERPRETED_FROM_SOURCE":"Metamorphism","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":4727,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU4727","STRAT_UNIT_NAME":"Corella Formation","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Corella Formation (INFORMAL_UNIT_NAME updated in 2025 using Queensland Detailed Solid Geology WMS)","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metasedimentary rock","LITHOLOGY":"sandstone","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Regionally, the lowermost part of the Corella Formation (PLkc1) in the Mary Kathleen Domain is described as laminated calcareous metasiltstone and fine-grained feldspathic sandstone, limestone and siltstone, passing into calcareous scapolitic granofels and calc-silicate (hornblende-diopside) granofels. The sample  was collected from an outcrop of thin- to medium-bedded, fine-grained laminated metasandstone interbedded with fine-grained scapolitic calc-silicate rocks that occur along a low ridge in the westernmost part of the Corella Formation type section about 150 m above the base and the contact with the underlying Ballara Quartzite. The site is about 50 m north of the former Cloncurry–Mount Isa road (now used as a station track on Corella Park Station) and is about 17.5 km north of the former Mary Kathleen uranium mine. In thin section, the sample consists of ~25% bluish green, subelongate and partly aligned grains of hornblende up to 0.5 mm in a granular mosaic of quartz and untwinned feldspar in subequal proportions and generally 0.05–0.1 mm. Opaque grains (~5%) and accessory titanite are also present. Bands of alteration up to 5 mm wide contain turbid feldspar and minor epidote. The sample was collected to provide a MDA and Zr spectra to be used as a control for regional comparison.","SAMPLING_FEATURE_NAME":"ASMI0089","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS625714","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Mount Isa Region","REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-20.5897304321,"LONG_GDA94":140.0332479759,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Lewis, C.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75056","AGE_REF":"Kositcin, N., Lewis, C.J., Withnall, I.W., Slade, A.P., Sargent, S., Hutton, L.J., 2023. Summary of results. Joint GSQ-GA Geochronology Project: Mount Isa region, 2017-2018. Geoscience Australia. Record, 2023/32, 97p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.26186/147793","AGE_ENTRY_DATE":"2023-07-24","AGE_LAST_UPDATED":"2026-02-18"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.13769","geometry":{"type":"Point","coordinates":[140.03324798,-20.58973043]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":13769,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU2678694","IGSN":"10273/AU2678694","SAMPLENO":2678694,"SAMPLE_ID":"ASMI0089","AGE_MA":1780,"AGE_MA_UNCERTAINTY":26,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.85,"NUMBER_OF_ANALYSES":4,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"GA6366","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Geoscience Australia","AGE_INTERPRETED_FROM_SOURCE":"Maximum depositional age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":4727,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU4727","STRAT_UNIT_NAME":"Corella Formation","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Corella Formation (INFORMAL_UNIT_NAME updated in 2025 using Queensland Detailed Solid Geology WMS)","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metasedimentary rock","LITHOLOGY":"sandstone","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Regionally, the lowermost part of the Corella Formation (PLkc1) in the Mary Kathleen Domain is described as laminated calcareous metasiltstone and fine-grained feldspathic sandstone, limestone and siltstone, passing into calcareous scapolitic granofels and calc-silicate (hornblende-diopside) granofels. The sample  was collected from an outcrop of thin- to medium-bedded, fine-grained laminated metasandstone interbedded with fine-grained scapolitic calc-silicate rocks that occur along a low ridge in the westernmost part of the Corella Formation type section about 150 m above the base and the contact with the underlying Ballara Quartzite. The site is about 50 m north of the former Cloncurry–Mount Isa road (now used as a station track on Corella Park Station) and is about 17.5 km north of the former Mary Kathleen uranium mine. In thin section, the sample consists of ~25% bluish green, subelongate and partly aligned grains of hornblende up to 0.5 mm in a granular mosaic of quartz and untwinned feldspar in subequal proportions and generally 0.05–0.1 mm. Opaque grains (~5%) and accessory titanite are also present. Bands of alteration up to 5 mm wide contain turbid feldspar and minor epidote. The sample was collected to provide a MDA and Zr spectra to be used as a control for regional comparison.","SAMPLING_FEATURE_NAME":"ASMI0089","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS625714","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Mount Isa Region","REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-20.5897304321,"LONG_GDA94":140.0332479759,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Lewis, C.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75056","AGE_REF":"Kositcin, N., Lewis, C.J., Withnall, I.W., Slade, A.P., Sargent, S., Hutton, L.J., 2023. Summary of results. Joint GSQ-GA Geochronology Project: Mount Isa region, 2017-2018. Geoscience Australia. Record, 2023/32, 97p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.26186/147793","AGE_ENTRY_DATE":"2023-07-24","AGE_LAST_UPDATED":"2026-02-18"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.6593","geometry":{"type":"Point","coordinates":[117.21361,-24.1634]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":6593,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU6660976","IGSN":"10273/AU6660976","SAMPLENO":6660976,"SAMPLE_ID":"206995.1","AGE_MA":1084,"AGE_MA_UNCERTAINTY":5,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"not captured","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"U/Pb not captured","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"age of igneous crystallization","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSWA","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":null,"LITHOLOGY":null,"MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"MOUNT EGERTON_206995.1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS648737","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Bangemall Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-24.1634,"LONG_GDA94":117.21361,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Jones, 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At a much later time, weak oxidation in the near-surface environment generated minor very fine-grained hematite as staining in plagioclase grains.","SAMPLING_FEATURE_NAME":"OBD 7","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH620995","BOREHOLE_TOP_DEPTH_M":261.65,"BOREHOLE_BASE_DEPTH_M":262.3,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-29.2816,"LONG_GDA94":132.50761,"ELEV_M_AHD":237,"ACCURACY_M":200,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2015-05-18","SAMPLE_ORIGINATOR":"Hall, J.W.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73434","AGE_REF":"Hall, J.W., Glorie, S., Reid, A.J., Boone, S.C., Collins, A.S., Gleadow, A., 2018. An apatite U-Pb thermal history map for the northern Gawler Craton, South Australia. 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This sample is considered to have formed as a felsic rock, originally composed of moderately abundant crystals (feldspar > quartz > ferromagnesians >> zircon) in a fine-grained matrix mainly of felsic nature. The strong magmatic resorption of the quartz crystals and their equant crystal shapes is consistent with a volcanic origin, allowing the felsic rock to have formed as a tuffaceous deposit. However, primary textures have been severely modified, so interpretation of the mode of emplacement of the rock unit remains uncertain. 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Sample 2021330391 is a massive to weakly layered pale green tuff with a sharp contact with the underlying fine-grained cross-bedded quartz sandstone (Crombez et al., 2022). The basal contact with the underlying sandstone, while conformable, is undulating. Sample 2021330391 exhibits a weakly defined anastomosing layering sub-parallel to bedding. In thin section, Madden et al. (2022) classified the sample as a ‘sericitic fine tuff’ characterised by a pseudo-eutaxitic fabric of secondary fine-grained illite (ca. 39%) and muscovite. Locally a crenulated pseudo-layering is weakly discernible. Micro-phenocrysts of simply twinned subhedral to tabular potassium feldspar are rarely present and angular shards of clear \"glassy\" quartz ‘eyes’ (with undulose extinction) are common. Domains of polycrystalline quartz are also present. Primary volcanic clasts such as platy shards and rare cuspate “Y” shaped relic bubble wall fragments are also present. Anhedral opaque minerals (chalcopyrite and hematite) are a trace groundmass component.","SAMPLING_FEATURE_NAME":"NDI Carrara 1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH648482","BOREHOLE_TOP_DEPTH_M":1579.1,"BOREHOLE_BASE_DEPTH_M":1579.23,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NT","COUNTRY":"AUS","LAT_GDA94":-18.9732532761,"LONG_GDA94":137.7849684567,"ELEV_M_AHD":262,"ACCURACY_M":3,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2021-04-23","SAMPLE_ORIGINATOR":"Grosjean, E.","SAMPLE_PHOTO":"Y","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73615","AGE_REF":"Kositcin, N., Carson, C.J., 2022. Exploring for the Future: SHRIMP U-Pb geochronology of NDI Carrara 1, South Nicholson region, Northern Territory. Geoscience Australia. Record, 2022/42, 56p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.11636/Record.2022.042","AGE_ENTRY_DATE":"2022-11-21","AGE_LAST_UPDATED":null}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15596","geometry":{"type":"Point","coordinates":[134.76186489,-31.2259239]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15596,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11083765","IGSN":"10.60494/zvs9-hb62","SAMPLENO":11083765,"SAMPLE_ID":"R387442","AGE_MA":1686,"AGE_MA_UNCERTAINTY":5,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.7,"NUMBER_OF_ANALYSES":18,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation, intrusive","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"DATA REPROCESSED: Ferris (2001), Ferris & Schwarz (2004) originally reported an age of 1680 +/- 5 Ma (SampleID R387442), however, this age data has been recalculated for Fanning et al. (2007) publication, which supersedes this previous age. NOTE: depth interval for this sample quoted in Ferris, (2001), Ferris & Schwarz (2004), Fanning et al (2007) of 155-157 m conflicts with GSSA SARIG db of 125-127 m.","AGE_SOURCE":"GSSA/Original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"foliated granite, Tunkillia","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":null,"LITHOLOGY":null,"MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"LED10","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH121223","BOREHOLE_TOP_DEPTH_M":125,"BOREHOLE_BASE_DEPTH_M":127,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-31.2259238984,"LONG_GDA94":134.7618648909,"ELEV_M_AHD":194,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Ferris, G.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"60484; 65376; 73620","AGE_REF":"Fanning, C.M., Reid, A.J., Teale, G.S., 2007. A geochronological framework for the Gawler Craton, South Australia. Geological Survey of South Australia Bulletin, 55, 258p.; Ferris, G.M., 2001, The geology and geochemistry of granitoids in the Childara region, western Gawler Craton, South Australia: implications for the Proterozoic tectonic history of the western Gawler Craton, and development of lode-style gold mineralisation at Tunkillia. Unpublished Masters of Exploration Geology thesis, University of Tasmania, Hobart, 175p.; Ferris, G.M., Schwarz, M., 2004. Definition of the Tunkillia Suite, western Gawler Craton. MESA Journal, 34, 32-41.","AGE_PUBLICATION_LINKS":"\nhttps://eprints.utas.edu.au/19759/\n; Not Recorded; https://pid.sarig.sa.gov.au/document/2018d037833","AGE_ENTRY_DATE":"2025-11-18","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.13845","geometry":{"type":"Point","coordinates":[139.73896632,-21.35629808]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":13845,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU7937586","IGSN":"10273/AU7937586","SAMPLENO":7937586,"SAMPLE_ID":"BB5926","AGE_MA":1864.6,"AGE_MA_UNCERTAINTY":4.3,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.02,"NUMBER_OF_ANALYSES":34,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"GA6487","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Geoscience Australia","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":24183,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU24183","STRAT_UNIT_NAME":"Birds Well Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Birds Well Granite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"The Birds Well Granite forms an elongate northwesterly to northerly aligned pluton (~35 km2), about 11.5 km west of Duchess. The age of the unit is poorly constrained. Carter et al. (1961) and Carter & Öpik (1963) regarded it as part of the basement assemblage and included it in the Kalkadoon Granite (now Kalkadoon Granodiorite); however, subsequent workers (Blake et al., 1981, 1984; Bultitude et al., 1982a, b; Blake, 1987) delineated it as a discrete intrusion interpreted to intrude the ~1860 Ma Kalkadoon Granodiorite and Tewinga Group (Wyborn & Page, 1983; Magee et al., 2012). The Tewinga Group comprises, from oldest to youngest, the Leichhardt Metamorphics (now mainly Leichhardt Volcanics), Magna Lynn Metabasalt and Argylla Formation (Derrick et al., 1978), although the relationship between the Birds Well Granite and Argylla Formation is uncertain. Nowhere on the first edition 1:100 00-scale map is the Argylla Formation shown in contact with the granite, which is in fault contact with rocks tentatively assigned to the Argylla Formation in only one small area (Bultitude et al., 1982b). U-Pb zircon dating indicates the Argylla Formation was emplaced between ~1755 Ma and ~1785 Ma (e.g., Page, 1983; Neumann et al., 2009; Carson et al., 2009, 2011). Blake et al. (1984) and Blake (1987) included the Birds Well Granite in the Wonga Batholith, with an inferred age of <1790 Ma. The analysed sample was collected from a prominent outcrop in the southern bank of Quartpot Creek and comprises pale pink, partly recrystallised, fine- to medium-grained, biotite granite. K-feldspar (~35%) forms scattered faint pink to pink relict grains (phenocrysts?) up to ~2 cm long and commonly with irregular or embayed margins, as well as more abundant grains in the recrystallised groundmass. Plagioclase (~25%) shows extensive alteration to sericite/muscovite. Quartz (~30%) is generally recrystallised to form elongate aggregates of smaller grains. Biotite (~10%) is concentrated in thin lenses and small aggregates. Grains commonly have a preferred orientation and are pleochroic from very dark brown (almost black) to pale brownish yellow, consistent with an iron-rich composition. Minor, accessory, and secondary minerals include titanite, opaque oxide, zircon (relatively common), allanite, apatite (mainly as small inclusions in biotite), amphibole (pleochroic from green to pale yellowish green), chlorite (after biotite), muscovite, and calcite. Some myrmekite is also present. Relatively large, slightly to extensively altered, zoned grains of allanite are conspicuous in the granite at the sample site. Bultitude et al. (1982a) postulated the unit may be similar in age to the Bowlers Hole (1777 +/- 4 Ma; Kositcin et al., 2019) and Mairindi Creek (1770.8 +/- 5.7 Ma) granites. Blake et al. (1984) and Blake (1987) included all these units in the Wonga Batholith rather than the older Kalkadoon Batholith, based on interpreted field relationships, although the Birds Well Granite is closely associated spatially with the Kalkadoon Granodiorite. Budd et al. (2001) assigned the Birds Well Granite to the Wonga Suite, mainly because of geochemical similarities, thereby inferring a crystallisation age of ~1730-1740 Ma. Our sample site recently yielded a reconnaissance U-Pb zircon (LA-ICP-MS) date of >1900 Ma (unpublished Queensland University of Technology (QUT) data for GSQ), adding to the speculation surrounding the age of this granite. A basement age (i.e. ~1860 Ma) has significant implications for the local stratigraphy (and possibly the regional stratigraphy), so we resampled at this site for U-Pb zircon SHRIMP analysis to confirm (or refute) the reconnaissance QUT date, and determine whether the stratigraphy of this part of the Mount Isa Inlier requires re-assessment.","SAMPLING_FEATURE_NAME":"BB5926","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS817753","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Mount Isa Region","REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-21.3562980841,"LONG_GDA94":139.7389663221,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Kositcin, N.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75080","AGE_REF":"Kositcin, N., Bultitude, R.J., Purdy, D.J., 2023. Summary of results. Joint GSQ-GA geochronology project, Kalkadoon-Leichhardt and Mary Kathleen Domains, 2018-2020. Geoscience Australia. Record, 2023/41, 46p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.26186/148600","AGE_ENTRY_DATE":"2023-09-26","AGE_LAST_UPDATED":"2026-02-18"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.6465","geometry":{"type":"Point","coordinates":[119.01379377,-30.31467489]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":6465,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1584365","IGSN":"10273/AU1584365","SAMPLENO":1584365,"SAMPLE_ID":"168956","AGE_MA":2711,"AGE_MA_UNCERTAINTY":4,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"not captured","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"U/Pb not captured","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"age of igneous crystallization","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSWA","PROJECT":null,"STRATNO":74313,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU74313","STRAT_UNIT_NAME":"granite gneiss - high-Ca type 74313","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granodiorite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"foliated porphyritic biotite granodiorite","SAMPLING_FEATURE_NAME":"168956","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS127182","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Yilgarn Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-30.3146748852,"LONG_GDA94":119.0137937662,"ELEV_M_AHD":392,"ACCURACY_M":50,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Nelson, D.R.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Geological Survey of Western Australia geochronology dataset","AGE_PUBLICATION_LINKS":"http://geodownloads.dmp.wa.gov.au/downloads/Geochron/pdfs/168956.1.pdf","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2021-01-14"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.7247","geometry":{"type":"Point","coordinates":[124.46265,-16.9482]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":7247,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU6661034","IGSN":"10273/AU6661034","SAMPLENO":6661034,"SAMPLE_ID":"212335.1","AGE_MA":1873,"AGE_MA_UNCERTAINTY":4,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.7,"NUMBER_OF_ANALYSES":10,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"age of igneous crystallization","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSWA","PROJECT":null,"STRATNO":23949,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU23949","STRAT_UNIT_NAME":"Ruins Dolerite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Ruins Dolerite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"basic intrusive rock","LITHOLOGY":"gabbro","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"YAMPI_212335.1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS648795","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Canning Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-16.9482,"LONG_GDA94":124.46265,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Lu, Y, Wingate, MTD and Hollis, JA 2017, 212335: metagabbro, Clara Hill; 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New geochronology of the Mount Woods Inlier and Central Gawler Gold Province [accompanying slides]. IN: Gawler Craton 2004: State of Play, Adelaide, 4-6 August 2004. Geological Survey of South Australia. 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Record, 2016/16, 70p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.11636/Record.2016.016","AGE_ENTRY_DATE":"2019-10-23","AGE_LAST_UPDATED":"2020-11-02"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.6363","geometry":{"type":"Point","coordinates":[116.69952,-28.7582]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":6363,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU6660870","IGSN":"10273/AU6660870","SAMPLENO":6660870,"SAMPLE_ID":"155879.1","AGE_MA":2956,"AGE_MA_UNCERTAINTY":58,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":3.1,"NUMBER_OF_ANALYSES":4,"CALCULATION_TYPE":"discordia","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"U/Pb not captured","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"age of igneous crystallization","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSWA","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Bunnawarra Suite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":null,"LITHOLOGY":null,"MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"YALGOO_155879.1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS648631","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Yilgarn Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-28.7582,"LONG_GDA94":116.69952,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Wingate, MTD, Kirkland, CL and Zibra, I 2015, 155879: granodiorite gneiss, Toben Bore; Geochronology Record 1245: Geological Survey of Western Australia, 4p.","AGE_PUBLICATION_LINKS":"http://geodownloads.dmp.wa.gov.au/downloads/Geochron/pdfs/155879.1.pdf","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2020-11-16"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.7933","geometry":{"type":"Point","coordinates":[150.2943417,-25.14893611]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":7933,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU6660824","IGSN":"10273/AU6660824","SAMPLENO":6660824,"SAMPLE_ID":"BB2535","AGE_MA":308,"AGE_MA_UNCERTAINTY":5,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"not reported","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Unknown","AGE_INTERPRETED_FROM_SOURCE":"Significance Unknown","OTHER_AGE_INTERPRETED_FROM_SOURCE":"NA","AGE_REMARK_FROM_SOURCE":"Shows excess scatter around 308.2+/-5 (MSWD=2.18); one area ~340 and two ~280-270. Even excluding these data there is excess scatter - not a simple age population (Squidded)","AGE_SOURCE":"GSQ compilation, 2016","PROJECT":null,"STRATNO":3378,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU3378","STRAT_UNIT_NAME":"Camboon Volcanics","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Camboon Volcanics/I5","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid volcanic rock","LITHOLOGY":"dacite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"MUNDUBBERA_BB2535","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS648585","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Proserpine Region","REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-25.14893611,"LONG_GDA94":150.2943417,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"65388","AGE_REF":"Withnall, I.W., Hutton, L.J., Bultitude, R.J., von Gnielinski, F.E., Rienks, I.P., 2009. 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Bultitude et al., 1982a) forms a roughly rectangular pluton (~11 km2) with a northwesterly elongation, ~8-12 km northwest of Duchess. The granite is well exposed with abundant bouldery rubble and numerous small pavements. The unit at the sample site comprises pink, partly recrystallised, medium-grained (average grain size ~1.5-2 mm), uneven-grained to slightly porphyritic biotite granite, with a well-developed tectonic foliation, defined mainly by a preferred alignment of biotite-rich lenses. Microcline (~40%) is much more abundant than plagioclase (~20%) and forms sparse phenocrysts (up to ~3 mm across), as well as numerous grains in the groundmass. Quartz grains (~30%) show undulose extinction and a marked tendency to form aggregates of several grains, many of which show subgrain development. Biotite is the main mafic mineral (~7%). It tends to be concentrated in thin lenses defining the well-developed foliation. Unaltered grains are pleochroic from dark reddish brown to pale yellowish brown. Some grains have been partly to extensively replaced by reddish brown secondary iron oxide(s). Inclusions of zircon and allanite (altered) are relatively common. The lenses also commonly contain traces of muscovite. Accessory and secondary minerals include muscovite (generally intergrown with biotite or as a replacement of plagioclase), zircon, fluorite, allanite (altered) opaque oxide(s), titanite (rare), and sericite. Traces of blue-green amphibole have also been reported from elsewhere in the unit (Bultitude et al., 1982a, 2021; Blake et al., 1984). Pervasive, red-brown, secondary iron oxide staining is widespread. In places, the granite is extensively altered (K-metasomatised, with anomalously high K2O contents—see Bultitude et al., 2021). The Mairindi Creek Granite occupies a similar geographic and stratigraphic position to the Bowlers Hole Granite (1777 +/- 4 Ma; Kositcin et al., 2019) exposed farther north. Blake et al. (1984) and Blake (1987) included both units in the post-1790 Ma Wonga Batholith. The Mairindi Creek Granite recently yielded a reconniassance LA-ICP-MS date of ~1770 Ma (unpublished QUT data for GSQ). A sample from the same site was collected for SHRIMP analysis to check the QUT date.","SAMPLING_FEATURE_NAME":"BB5945","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS817755","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Mount Isa Region","REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-21.3433737274,"LONG_GDA94":139.772276064,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Kositcin, N.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75080","AGE_REF":"Kositcin, N., Bultitude, R.J., Purdy, D.J., 2023. Summary of results. Joint GSQ-GA geochronology project, Kalkadoon-Leichhardt and Mary Kathleen Domains, 2018-2020. Geoscience Australia. Record, 2023/41, 46p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.26186/148600","AGE_ENTRY_DATE":"2023-09-26","AGE_LAST_UPDATED":"2026-02-18"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.6845","geometry":{"type":"Point","coordinates":[124.90309,-28.7896]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":6845,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU6660930","IGSN":"10273/AU6660930","SAMPLENO":6660930,"SAMPLE_ID":"192552.1","AGE_MA":2726,"AGE_MA_UNCERTAINTY":14,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"not captured","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"U/Pb not captured","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"age of igneous crystallization","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSWA","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":null,"LITHOLOGY":null,"MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"NEALE_192552.1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS648691","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Officer Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-28.7896,"LONG_GDA94":124.90309,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Geological Survey of Western Australia geochronology dataset","AGE_PUBLICATION_LINKS":"http://geodownloads.dmp.wa.gov.au/downloads/Geochron/pdfs/192552.1.pdf","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2021-01-14"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.16008","geometry":{"type":"Point","coordinates":[140.01301292,-20.74604658]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":16008,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11086493","IGSN":"10.60494/h3g0-py69","SAMPLENO":11086493,"SAMPLE_ID":"MKN007","AGE_MA":1511,"AGE_MA_UNCERTAINTY":10,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.01,"NUMBER_OF_ANALYSES":14,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"mineralisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Allanite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser ablation: Coherent 193nm COMPexPro 110 UV excimer laser ablation system","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: Agilent 7700","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"mineralisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"mineralisation","LITHOLOGY":"breccia","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Consists of clasts comprising fine-grained (<200mm) diopside (24.2vol%), calcite (10.3vol%) and apatite (18.3vol%), rimmed by slightly coarser apatite; allanite (41.7vol%) infills between and partially overprints these clasts. Within each clast, the apatite defines a planar foliation, which differs between clasts; this is interpreted as a breccia with a metasomatic overprint.","SAMPLING_FEATURE_NAME":"MK259","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH1042042","BOREHOLE_TOP_DEPTH_M":37.4,"BOREHOLE_BASE_DEPTH_M":37.4,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-20.7460465764,"LONG_GDA94":140.0130129244,"ELEV_M_AHD":490,"ACCURACY_M":2000,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Burnham, A.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"76419","AGE_REF":"Burnham, A.D., Chandler, R., Amelin, Y., Mavrogenes, J., 2024. Allanite geochronology in the Mount Isa Inlier. 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(2007) publication, which supersedes this previous age.","AGE_SOURCE":"GSSA/Original publication","PROJECT":null,"STRATNO":80751,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU80751","STRAT_UNIT_NAME":"Moreenia Monzogranite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Moreenia Adamellite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"monzogranite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"R1124952","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS1008656","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-34.145249,"LONG_GDA94":135.926739,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":"~2 km northeast of Moreenia railway siding, adjacent to the Yeelanna-Ungarra road","SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Bodorkos, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"65376; 73609","AGE_REF":"Fanning, C.M., 1997. Geochronological synthesis of southern Australia - Part 1 The Curnamona Province, and Part 2 The Gawler Craton. South Australia. Department of Mines and Energy. Open File Envelope, 8918, 76.; Fanning, C.M., Reid, A.J., Teale, G.S., 2007. A geochronological framework for the Gawler Craton, South Australia. Geological Survey of South Australia Bulletin, 55, 258p.","AGE_PUBLICATION_LINKS":"https://pid.sarig.sa.gov.au/document/2018d037833; https://pid.sarig.sa.gov.au/document/mesac19443","AGE_ENTRY_DATE":"2025-11-18","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.7494","geometry":{"type":"Point","coordinates":[115.71278,-25.1136]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":7494,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU6661195","IGSN":"10273/AU6661195","SAMPLENO":6661195,"SAMPLE_ID":"168948.1","AGE_MA":1616,"AGE_MA_UNCERTAINTY":20,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"not captured","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"U/Pb not captured","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"igneous crystallization (max age)","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSWA","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":null,"LITHOLOGY":null,"MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"GLENBURGH_168948.1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS648956","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Carnarvon Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-25.1136,"LONG_GDA94":115.71278,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Geological Survey of Western Australia geochronology dataset","AGE_PUBLICATION_LINKS":"http://geodownloads.dmp.wa.gov.au/downloads/Geochron/pdfs/168948.1.pdf","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2021-01-14"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.7061","geometry":{"type":"Point","coordinates":[128.90576886,-25.91765415]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":7061,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1695168","IGSN":"10273/AU1695168","SAMPLENO":1695168,"SAMPLE_ID":"174594","AGE_MA":1190,"AGE_MA_UNCERTAINTY":9,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.1,"NUMBER_OF_ANALYSES":18,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"age of igneous crystallization","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSWA","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Pitjantjatjara Supersuite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"basic intrusive rock","LITHOLOGY":"anorthosite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"anorthosite","SAMPLING_FEATURE_NAME":"174594","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS360219","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Musgrave Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-25.9176541479,"LONG_GDA94":128.9057688631,"ELEV_M_AHD":725,"ACCURACY_M":50,"LOCATION_METHOD":"unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Geological Survey of Western Australia (GSWA)","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Bodorkos, S and Wingate, MTD, 2008, 174594: metamorphosed leucogabbro, Mirturtu Camp; Geochronology Record 716: Geological Survey of Western Australia, 4p.","AGE_PUBLICATION_LINKS":"http://geodownloads.dmp.wa.gov.au/downloads/Geochron/pdfs/174594.1.pdf","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2020-11-16"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.7065","geometry":{"type":"Point","coordinates":[116.19884,-22.6295]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":7065,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU6661077","IGSN":"10273/AU6661077","SAMPLENO":6661077,"SAMPLE_ID":"206949.1","AGE_MA":728,"AGE_MA_UNCERTAINTY":17,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.1,"NUMBER_OF_ANALYSES":9,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"age of igneous crystallization","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"This result is in good agreement with the date of 756 +/- 18 Ma obtained for baddeleyites from the same sample (GSWA 206949.2, Wingate et al., 2017). This agreement demonstrates that the zircons crystallized during cooling of the dyke, and are not inherited from older rocks. The best estimate of the magmatic crystallization age of the dolerite dyke, based on the combined results for baddeleyite and zircon, is the weighted mean 207Pb*/206Pb* date of 753 +/- 11 Ma (MSWD = 0.94), for 14 out of 15 combined analyses.","AGE_SOURCE":"GSWA","PROJECT":null,"STRATNO":80584,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU80584","STRAT_UNIT_NAME":"Mundine Well Dolerite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Mundine Well Dolerite Suite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"basic intrusive rock","LITHOLOGY":"dolerite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"WYLOO_206949.1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS648838","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Ashburton 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4p.","AGE_PUBLICATION_LINKS":"http://geodownloads.dmp.wa.gov.au/downloads/Geochron/pdfs/206949.1.pdf","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2020-11-16"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.7695","geometry":{"type":"Point","coordinates":[122.71883,-31.4826]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":7695,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU6661242","IGSN":"10273/AU6661242","SAMPLENO":6661242,"SAMPLE_ID":"177921.1","AGE_MA":1491,"AGE_MA_UNCERTAINTY":22,"AGE_CONFIDENCE_LEVEL":"1 standard deviation","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"not captured","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"U/Pb not captured","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"maximum depositional age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSWA","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":null,"LITHOLOGY":null,"MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"WIDGIEMOOLTHA_177921.1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS649003","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Yilgarn Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-31.4826,"LONG_GDA94":122.71883,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Jones, 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Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-25.240922,"LONG_GDA94":116.430822,"ELEV_M_AHD":385,"ACCURACY_M":50,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":"Two Wells","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Nelson, D.R.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Geological Survey of Western Australia geochronology dataset","AGE_PUBLICATION_LINKS":"http://geodownloads.dmp.wa.gov.au/downloads/Geochron/pdfs/142931.1.pdf","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2021-01-14"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.1544","geometry":{"type":"Point","coordinates":[135.49993638,-22.69669483]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":1544,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU2115102","IGSN":"10273/AU2115102","SAMPLENO":2115102,"SAMPLE_ID":"2010080003","AGE_MA":1780,"AGE_MA_UNCERTAINTY":6,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.9,"NUMBER_OF_ANALYSES":18,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"GA6149","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Geoscience Australia","AGE_INTERPRETED_FROM_SOURCE":"Age of magmatic crystallization of (meta-)igneous rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"Updated from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 20 September 2019","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Unnamed Quartz Norite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"basic intrusive rock","LITHOLOGY":"diorite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"This sample was collected from a small body (~200 m across) of what was previously mapped as a quartz norite. In outcrop the unit is a blocky, brown, even grained rock consisting of altered plagioclase, biotite and hornblende. In thin section, the rock consists of pervasively sericitised plagioclase, hornblende, biotite, chlorite, apatite and epidote with minor quartz. Primary igneous textures are preserved, however, there is no indication of relict pyroxene, and the sample is more accurately described as a quartz diorite.","SAMPLING_FEATURE_NAME":"2010080003","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS530816","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Arunta Region","REGION_NAME_SOURCE":null,"STATE":"NT","COUNTRY":"AUS","LAT_GDA94":-22.6966948347,"LONG_GDA94":135.4999363769,"ELEV_M_AHD":475,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Huston, D.L.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"68150","AGE_REF":"Kositcin, N., Magee, C.W., Whelan, J.A., Champion, D.C., 2011. New SHRIMP geochronology from the Arunta Region: 2009-2010. Geoscience Australia. Record, 2011/14, 61p.","AGE_PUBLICATION_LINKS":"http://pid.geoscience.gov.au/dataset/ga/71585","AGE_ENTRY_DATE":"2012-09-13","AGE_LAST_UPDATED":"2020-11-02"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.4127","geometry":{"type":"Point","coordinates":[143.29575383,-14.44963188]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":4127,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU2550430","IGSN":"10273/AU2550430","SAMPLENO":2550430,"SAMPLE_ID":"QFG8493","AGE_MA":283.3,"AGE_MA_UNCERTAINTY":3.2,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.38,"NUMBER_OF_ANALYSES":7,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":"GA6326","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Geoscience Australia","AGE_INTERPRETED_FROM_SOURCE":"Age of magmatic crystallization of (meta-)igneous rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"Inserted from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 23 October 2019","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid volcanic rock","LITHOLOGY":"rhyolite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"This sample was collected from a NNW-trending flow-banded aphanitic rhyolitic dyke, which intrudes the Early Devonian Flyspeck Granodiorite, near the contact (~170 m) with the Glen Garland Granodiorite at the Lady Jayne gold deposit, Yarraden. The dyke is cut by auriferous quartz veins and several gold occurrences are spatially associated with the dyke. On the basis of petrography and intrusive relationships, this dyke was assumed to be Carboniferous to Permian (Blewett and Trail, 1995) and it is petrographically similar to rhyolitic dykes at the Trafalgar and Homeward Bound gold occurrences in the Coen area. The dyke is cut by auriferous quartz veins, and several gold occurrences in the vicinity are spatially associated with the dyke. The dyke intrudes the Early Devonian Flyspeck Granodiorite, near the contact with the Glen Garland Granodiorite. The Flyspeck Granodiorite is a fine- to coarse-grained strongly porphyritic hornblende-biotite granodiorite, grading into biotite monzogranite and biotite granite. It intrudes the Proterozoic Coen Metamorphic Group and is intruded by the Ebagoola Granite and probably also by the Glen Garland Granodiorite, Two Rail Monzogranite and Barwon Granite. It is also cut by dykes of rhyolitic, dacitic and andesitic and/or dioritic to doleritic composition assumed to be Carboniferous to Permian in age (Blewett and Trail, 1995). The Flyspeck Granodiorite has a SHRIMP 238U/206Pb zircon age of 406 +/- 10 Ma (Black et al., 1992a, b). Another sample that was originally interpreted as a part of the Flyspeck Granodiorite, has a SHRIMP 238U/206Pb zircon age of 398 +/- 10 Ma (Black et al., 1992a, b), but was subsequently assigned to the Glen Garland Granodiorite (Blewett and Trail, 1995).","SAMPLING_FEATURE_NAME":"QFG8493","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS599504","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Coen Region","REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-14.4496318825,"LONG_GDA94":143.2957538302,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Kositcin, N.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"71031","AGE_REF":"Kositcin, N., Lisitsin, V., Bultitude, R.J., Purdy, D.J., Brown, D.D., von Gnielinski, F.E., Dhnaram, C., 2016. Summary of results - Joint GSQ-GA geochronology project: Thomson Orogen, Mossman Orogen and Cape York, 2015-2016. Queensland Geological Record, 2016/09, 102p.","AGE_PUBLICATION_LINKS":"https://geoscience.data.qld.gov.au/report/cr099464","AGE_ENTRY_DATE":"2019-10-23","AGE_LAST_UPDATED":"2020-11-02"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15868","geometry":{"type":"Point","coordinates":[144.151117,-18.868479]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15868,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11086387","IGSN":"10.60494/7xw4-2g48","SAMPLENO":11086387,"SAMPLE_ID":"81303109D","AGE_MA":321,"AGE_MA_UNCERTAINTY":15,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":19,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"isochron","GEOLOGICAL_EVENT":"mineralisation","ISOTOPIC_SYSTEM":"Rb/Sr","ISOTOPIC_RATIO":"87Rb/86Sr and 87Sr/86Sr","MINERAL":"Whole rock","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"unknown: unknown","ANALYTICAL_COLLECTION_SYSTEM":"unknown: unknown","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"mineralisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Isochron age generated from SAMPLEIDs 81303108A, 81303108D, 81303108G, 81303108 I, 81303108K, 81303108L, 81303109A, 81303109D, 81303109H, 81303109K, 81303109L, and 81303109N.","AGE_SOURCE":null,"PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"rock","LITHOLOGY":"breccia","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"KIDSTON_BAIN","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS1041967","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-18.868479,"LONG_GDA94":144.151117,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Bain, J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"22669","AGE_REF":"Bain, J.H.C., Withnall, I.W., Black, L.P., Etminan, H., Golding, S.D., Sun, S-S., 1998. Towards an understanding of the age and origin of mesothermal gold mineralisation in the Etheridge Goldfield, Georgetown region, north Queensland. Australian Journal of Earth Sciences, 45(2), 247-263.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099808728385","AGE_ENTRY_DATE":"2026-05-08","AGE_LAST_UPDATED":"2026-06-09"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.16103","geometry":{"type":"Point","coordinates":[142.39694818,-17.85720247]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":16103,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1977889","IGSN":"10273/AU1977889","SAMPLENO":1977889,"SAMPLE_ID":"2008839011","AGE_MA":285.4,"AGE_MA_UNCERTAINTY":1.2,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":1.4,"NUMBER_OF_ANALYSES":9,"CALCULATION_TYPE":"plateau","GEOLOGICAL_EVENT":"mineralisation","ISOTOPIC_SYSTEM":"Ar/Ar","ISOTOPIC_RATIO":"40Ar/39Ar","MINERAL":"Muscovite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser heating: unknown model","ANALYTICAL_COLLECTION_SYSTEM":"NG-MS: Mass Analyser Product 215-50 static mass spectrometer","LABORATORY_NAME":"University of Queensland","AGE_INTERPRETED_FROM_SOURCE":"Although strictly cooling ages, the ca 285 Ma muscovite plateau ages most likely approximate the mineralisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metasomatic rock","LITHOLOGY":"vein","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"semi-massive siderite vein, siderite-chalcopyrite-quartz-muscovite vein cutting very fine grained shale/mudstone, unidentified black mineral; upper margin has a 15cm silicified margin; depth - 207.1-207.5m","SAMPLING_FEATURE_NAME":"A1-001","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH457437","BOREHOLE_TOP_DEPTH_M":207.1,"BOREHOLE_BASE_DEPTH_M":207.5,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-17.8572024655,"LONG_GDA94":142.396948178,"ELEV_M_AHD":117,"ACCURACY_M":10,"LOCATION_METHOD":"company supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2008-09-08","SAMPLE_ORIGINATOR":"Kositcin, N.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"74461","AGE_REF":"Huston, D.L., Norman, M., Maas, R., Miggins, D., Cross, A., Thiede, D.S., Creaser, R., Bennett, V., Bottrill, R., Lisitsin, V., Duncan, R., Forster, D., Brauhart, C., Dhnaram, C., Champion, D., Czarnota, K., Whitaker, A., Turnbull, D., 2022. Geochronological studies of selected Australian mineral deposits, 2003 - 2020. Geoscience Australia (GA), 2022/11, 66pp.","AGE_PUBLICATION_LINKS":"Not Available","AGE_ENTRY_DATE":"2026-06-09","AGE_LAST_UPDATED":"2026-06-09"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.16104","geometry":{"type":"Point","coordinates":[142.39694818,-17.85720247]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":16104,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1977889","IGSN":"10273/AU1977889","SAMPLENO":1977889,"SAMPLE_ID":"2008839011","AGE_MA":285,"AGE_MA_UNCERTAINTY":1.5,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":1.8,"NUMBER_OF_ANALYSES":9,"CALCULATION_TYPE":"plateau","GEOLOGICAL_EVENT":"mineralisation","ISOTOPIC_SYSTEM":"Ar/Ar","ISOTOPIC_RATIO":"40Ar/39Ar","MINERAL":"Muscovite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser heating: unknown model","ANALYTICAL_COLLECTION_SYSTEM":"NG-MS: Mass Analyser Product 215-50 static mass spectrometer","LABORATORY_NAME":"University of Queensland","AGE_INTERPRETED_FROM_SOURCE":"Although strictly cooling ages, the ca 285 Ma muscovite plateau ages most likely approximate the mineralisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metasomatic rock","LITHOLOGY":"vein","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"semi-massive siderite vein, siderite-chalcopyrite-quartz-muscovite vein cutting very fine grained shale/mudstone, unidentified black mineral; upper margin has a 15cm silicified margin; depth - 207.1-207.5m","SAMPLING_FEATURE_NAME":"A1-001","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH457437","BOREHOLE_TOP_DEPTH_M":207.1,"BOREHOLE_BASE_DEPTH_M":207.5,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-17.8572024655,"LONG_GDA94":142.396948178,"ELEV_M_AHD":117,"ACCURACY_M":10,"LOCATION_METHOD":"company supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2008-09-08","SAMPLE_ORIGINATOR":"Kositcin, N.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"74461","AGE_REF":"Huston, D.L., Norman, M., Maas, R., Miggins, D., Cross, A., Thiede, D.S., Creaser, R., Bennett, V., Bottrill, R., Lisitsin, V., Duncan, R., Forster, D., Brauhart, C., Dhnaram, C., Champion, D., Czarnota, K., Whitaker, A., Turnbull, D., 2022. Geochronological studies of selected Australian mineral deposits, 2003 - 2020. Geoscience Australia (GA), 2022/11, 66pp.","AGE_PUBLICATION_LINKS":"Not Available","AGE_ENTRY_DATE":"2026-06-09","AGE_LAST_UPDATED":"2026-06-09"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.13586","geometry":{"type":"Point","coordinates":[144.88985777,-19.18485354]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":13586,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1977984","IGSN":"10273/AU1977984","SAMPLENO":1977984,"SAMPLE_ID":"NQ70","AGE_MA":487.3,"AGE_MA_UNCERTAINTY":3.2,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.48,"NUMBER_OF_ANALYSES":30,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":"GA6086","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Geoscience Australia","AGE_INTERPRETED_FROM_SOURCE":"Magmatic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"[Result as reported by Magee et al. (2023; https:doi.org/10.5194/gchron-5-1-2023), who included (via quadratic addition) the uncertainty of 0.27% (2sigma) associated with the reference 206Pb/238U value for TEMORA2 determined via IDTIMS (which is dominated by the uncertainty in U/Pb of the tracer solution; see Black et al. 2004). Including this additional component of uncertainty facilitated direct comparison with CA-TIMS analyses from the same zircon population (Magee et al. 2023).]","AGE_SOURCE":null,"PROJECT":null,"STRATNO":26129,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU26129","STRAT_UNIT_NAME":"Saddington Tonalite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Saddington Tonalite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"tonalite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"tonalite","SAMPLING_FEATURE_NAME":"NQ70","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS457522","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Clarke River Region","REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-19.1848535365,"LONG_GDA94":144.8898577705,"ELEV_M_AHD":529,"ACCURACY_M":10,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2008-09-17","SAMPLE_ORIGINATOR":"Huston, D.L.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"74357","AGE_REF":"Magee, C.W., Bodorkos, S., Lewis, C.J., Crowley, J.L., Wall, C.J., Friedman, R.M., 2023. Examination of the accuracy of SHRIMP U-Pb geochronology based on samples dated by both SHRIMP and CA-TIMS. Geochronology, 5(1), 1-19.","AGE_PUBLICATION_LINKS":"https://doi.org/10.5194/gchron-5-1-2023","AGE_ENTRY_DATE":"2023-01-18","AGE_LAST_UPDATED":"2026-02-18"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.4132","geometry":{"type":"Point","coordinates":[144.96557469,-18.96540593]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":4132,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU2292847","IGSN":"10273/AU2292847","SAMPLENO":2292847,"SAMPLE_ID":"NQ37","AGE_MA":459.5,"AGE_MA_UNCERTAINTY":4,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.86,"NUMBER_OF_ANALYSES":8,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":"GA6303","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Geoscience Australia","AGE_INTERPRETED_FROM_SOURCE":"Maximum depositional age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"Inserted from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 23 October 2019","PROJECT":null,"STRATNO":25720,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU25720","STRAT_UNIT_NAME":"Halls Reward Metamorphics","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Halls Reward Metamorphics","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metasedimentary siliciclastic rock","LITHOLOGY":"arenite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"The Halls Reward Metamorphics are considered part of the Thomson Orogen and are the easternmost unit in the Greenvale Province. They comprise amphibolite facies mica schist, quartzite, biotite-muscovite gneiss and mafic and ultramafic units (Fergusson et al., 2013). This sample of Halls Reward Metamorphics is a quartzose meta-arenite with thin micaceous horizons collected from a cutting along the old Greenvale railway line ~4.8 km north-northwest of Greenvale.","SAMPLING_FEATURE_NAME":"NQ37","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS597301","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Georgetown Region","REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-18.9654059316,"LONG_GDA94":144.9655746916,"ELEV_M_AHD":null,"ACCURACY_M":999,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Kositcin, N.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"71031","AGE_REF":"Kositcin, N., Lisitsin, V., Bultitude, R.J., Purdy, D.J., Brown, D.D., von Gnielinski, F.E., Dhnaram, C., 2016. Summary of results - Joint GSQ-GA geochronology project: Thomson Orogen, Mossman Orogen and Cape York, 2015-2016. Queensland Geological Record, 2016/09, 102p.","AGE_PUBLICATION_LINKS":"https://geoscience.data.qld.gov.au/report/cr099464","AGE_ENTRY_DATE":"2019-10-23","AGE_LAST_UPDATED":"2026-02-18"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.13764","geometry":{"type":"Point","coordinates":[140.49789947,-21.74742351]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":13764,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU2678688","IGSN":"10273/AU2678688","SAMPLENO":2678688,"SAMPLE_ID":"ASMI0292","AGE_MA":1681,"AGE_MA_UNCERTAINTY":12,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.52,"NUMBER_OF_ANALYSES":23,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"GA6370","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Geoscience Australia","AGE_INTERPRETED_FROM_SOURCE":"Maximum depositional age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":80509,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU80509","STRAT_UNIT_NAME":"New Hope Sandstone Member","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"New Hope Sandstone Member","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"siliciclastic sedimentary rock","LITHOLOGY":"sandstone","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"The sample is a coarse-grained felspathic sandstone collected from southeast of the Mount Cobalt mine in the upper part of a succession mapped as New Hope Sandstone Member. The member consists of prominent beds of brown to cream or pink, massive to locally graded, medium to very thick-bedded, coarse-grained feldspathic sandstone with subordinate interbeds of more micaceous metasandstone and pelitic mica schist. The succession at the sample site is overturned, and youngs to the west. It is overlain by the upper part of the Starcross Formation, which is the parent unit of the New Hope Sandstone Member. In thin section, the sample consists of a mosaic of quartz and subordinate feldspar and minor muscovite. The grainsize distribution shows bimodality with coarser grains 0.5–2 mm in a finer matrix 0.5–0.2 mm, but the low abundance of muscovite indicates that there was little clay in the protolith. Four samples of the New Hope Sandstone Member have been dated previously. One located east of the Kuridala smelter site (Geochron Delivery, sample 1925991/2005169048) gave a maximum depositional age of 1676 ± 4 Ma (Withnall, 2019). Another from the Tip Top mine area (Geochron Delivery, sample 1925942/2006169014) yielded an interpreted maximum deposition age of 1674 ± 9 Ma (Withnall, 2019). A quartzo-feldspathic sandstone sample from northeast of Mount Cobalt (sample 1925943/2006169015) yielded a maximum depositional age of 1693 ± 9 Ma (recalculated to 1691 ± 9 Ma, Withnall, 2019). Lewis et al. (2020) determined a maximum depositional age of 1662 ± 22 Ma for the New Hope Sandstone Member (2614024/SSMI-139) south of Mount Dore. This sample from near the top of the member was collected to further constrain the age of the unit and that of the Starcross Formation and lower part of the Kuridala Group.","SAMPLING_FEATURE_NAME":"ASMI0292","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS625708","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Mount Isa Region","REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-21.747423506,"LONG_GDA94":140.4978994675,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Lewis, C.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75056","AGE_REF":"Kositcin, N., Lewis, C.J., Withnall, I.W., Slade, A.P., Sargent, S., Hutton, L.J., 2023. Summary of results. Joint GSQ-GA Geochronology Project: Mount Isa region, 2017-2018. Geoscience Australia. 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Report Book, 2004/00018, 3.","AGE_PUBLICATION_LINKS":"https://pid.sarig.sa.gov.au/document/2019d081296","AGE_ENTRY_DATE":"2025-11-18","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15030","geometry":{"type":"Point","coordinates":[142.90538869,-17.95664845]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15030,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU8246353","IGSN":"10.60494/625c-6t98","SAMPLENO":8246353,"SAMPLE_ID":"BB6009","AGE_MA":1560,"AGE_MA_UNCERTAINTY":4,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.77,"NUMBER_OF_ANALYSES":24,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"GA6506","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Geoscience Australia","AGE_INTERPRETED_FROM_SOURCE":"Magmatic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":6827,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU6827","STRAT_UNIT_NAME":"Forsayth Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Forsayth Granite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Basement granite intersected in drillhole Karumba KASO_0001_1 was included as part of the S-type Forsayth Granite based on lithological and geophysical similarities. 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Both are intruded along their E margins by the Early Devonian felsic I-type Thologolong Granite, the mapped N boundary of which coincides with the NSW-Victoria border. Despite the Victorian \"border frontage\" exclusively comprising Granya Granite in the W and Thologolong Granite in the E, Chappell et al. (1991) mapped the entire northward continuation of the batholith into NSW as Koetong Granite. Chappell (1999) later recognised fractionated S-type granite in the SW part of the batholith within NSW and assigned those rocks to the Granya Granite; one outcrop was dated at 428.2 +/- 2.7 Ma (Bodorkos et al., 2015). Both plutons are regarded as mid-Silurian: Ickert & Williams (2011) dated the Granya Granite at 435.8 +/- 4.4 Ma in Victoria, and Bodorkos et al. (2021) dated the Koetong Granite in NSW at 428.1 +/- 2.6 Ma. On the E side of the batholith, Campbell (2018, 2020) confirmed that the Thologolong Granite extends into NSW at least as far N as Holbrook, supported by dates of 415.7 +/- 2.6 Ma and 415.1 +/- 2.0 Ma (\"Holbrook Granite\") in NSW (Bodorkos et al., 2015). This calls into question the location of the N boundary of the Thologolong Granite, and the affinity of unfractionated S-type granite (mapped as Koetong Granite) exposed to its N. In thin section, this sample is a medium- to coarse-grained (2-6 mm), cordierite-bearing biotite granite of S-type affinity. It comprises 35% quartz, 25% K-feldspar, 25% plagioclase, 15% biotite, and accessory cordierite, apatite, zircon and monazite. Plagioclase forms stout subhedral to euhedral laths 0.8-2.5 mm long. Larger grains occur as isolated phenocrysts, whereas smaller grains are often inclusions to K-feldspar. Plagioclase displays oscillatory zonation within overall normal compositional zoning from centre to edge, always culminating in a sharply defined albite rim. Most twinning is polysynthetic, with lesser simple twins. Core anorthite contents are An50-60 (andesine to labradorite). One plagioclase grain is partially replaced by a branching network of K-feldspar. K-feldspar forms untwinned, coarse (up to 10 mm) anhedral poikilitic grains hosting finer-grained subhedral to euhedral plagioclase and biotite. Quartz is an anhedral, interstitial phase characterised by extensive subgrain development and undulose extinction. Biotite forms subhedral to euhedral, tabular to hexagonal flakes 1.0-1.5 mm in size. Cordierite forms equant, broadly rounded grains up to 2 mm that are pervasively replaced by fine-grained white mica. Zircon, apatite and monazite are most common as biotite-hosted inclusions. 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SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS648600","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Proserpine Region","REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-25.50554444,"LONG_GDA94":150.8566361,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"65388","AGE_REF":"Withnall, I.W., Hutton, L.J., Bultitude, R.J., von Gnielinski, F.E., Rienks, I.P., 2009. Geology of the Auburn Arch, southern Connors Arch and adjacent parts of the Bowen Basin and Yarrol Province, central Queensland. Queensland Geology, 12, CD.","AGE_PUBLICATION_LINKS":"https://nla.gov.au/nla.cat-vn4765331","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2020-11-16"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.16087","geometry":{"type":"Point","coordinates":[144.42105278,-17.07100278]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":16087,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11088558","IGSN":"10.60494/mypv-1955","SAMPLENO":11088558,"SAMPLE_ID":"950","AGE_MA":315.1,"AGE_MA_UNCERTAINTY":13.1,"AGE_CONFIDENCE_LEVEL":"1 standard deviation","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"model age","GEOLOGICAL_EVENT":"significance unknown","ISOTOPIC_SYSTEM":"Re/Os","ISOTOPIC_RATIO":"187Re/187Os and 187Os/188Os","MINERAL":"Molybdenite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"acid digestion: Carius tube dissolution","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"Not explicitly stated.","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"considered unreliable due to possible incomplete spike sample equilibration (per. comm. M. Norman) and it was decided to repeat the analysis","AGE_SOURCE":null,"PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metasomatic rock","LITHOLOGY":"skarn","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"unknown","SAMPLE_DESC":"not analysed for gold","SAMPLING_FEATURE_NAME":"950","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH1081755","BOREHOLE_TOP_DEPTH_M":472.05,"BOREHOLE_BASE_DEPTH_M":472.16,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-17.0710027778,"LONG_GDA94":144.4210527778,"ELEV_M_AHD":342,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Lehrmann, B.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"74008","AGE_REF":"Lehrmann, B., 2012, Polymetallic mineralisation in the Chillagoe district of orth-east Queensland: insights into base metal rich intrusion-related gold systems. Unpublished Ph.D. thesis, James Cook University, 313 p.","AGE_PUBLICATION_LINKS":"https://researchonline.jcu.edu.au/29094/1/JCU_29094_Lehrmann_2012_thesis.pdf","AGE_ENTRY_DATE":"2026-06-09","AGE_LAST_UPDATED":"2026-06-09"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.16088","geometry":{"type":"Point","coordinates":[144.42105278,-17.07100278]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":16088,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11088558","IGSN":"10.60494/mypv-1955","SAMPLENO":11088558,"SAMPLE_ID":"950","AGE_MA":294.5,"AGE_MA_UNCERTAINTY":1,"AGE_CONFIDENCE_LEVEL":"1 standard deviation","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"model age","GEOLOGICAL_EVENT":"mineralisation","ISOTOPIC_SYSTEM":"Re/Os","ISOTOPIC_RATIO":"187Re/187Os and 187Os/188Os","MINERAL":"Molybdenite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"acid digestion: Carius tube dissolution","ANALYTICAL_COLLECTION_SYSTEM":"ICPMS: unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"Not explicitly stated. Mineralisation is the inferred interpretation.","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metasomatic rock","LITHOLOGY":"skarn","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"unknown","SAMPLE_DESC":"not analysed for gold","SAMPLING_FEATURE_NAME":"950","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH1081755","BOREHOLE_TOP_DEPTH_M":472.05,"BOREHOLE_BASE_DEPTH_M":472.16,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-17.0710027778,"LONG_GDA94":144.4210527778,"ELEV_M_AHD":342,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Lehrmann, B.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"74008","AGE_REF":"Lehrmann, B., 2012, Polymetallic mineralisation in the Chillagoe district of orth-east Queensland: insights into base metal rich intrusion-related gold systems. 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Sample 2021330394 is a weakly layered pale green tuff with a undulating but sharp contact with the underlying pale fine-grained cross-bedded quartz sandstone (Crombez et al., 2022). Sample 2021330394 exhibits a weakly defined layering, parallel to bedding. The basal contact with the underlying pale fine-grained quartz sandstone is conformable but the contact surface is undulating. Madden et al. (2022) classifies the sample as a ‘sericitic fine-tuff’ which, in thin section, is characterised by a pseudo-eutaxitic fabric of secondary fine-grained clays (illite ca. 18%), muscovite, brownish amorphous lenticular domains of altered and/or devitrified fiamme and weakly aligned subhedral tabular altered feldspar micro-phenocrysts up to 200 microns in length. Elongated ‘shards’ of quartz and anhedral trace hematite (Madden et al., 2022) are also present. Parallel to the pseudo-eutaxitic sericitic groundmass are dark, optically dense seams comprised of extremely fine mica (<5 micron), devitrified glass, flattened pumice fragments, and trace hematite (Madden et al., 2022). These features are interpreted as pseudo-dissolution seams formed through post depositional compaction.","SAMPLING_FEATURE_NAME":"NDI Carrara 1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH648482","BOREHOLE_TOP_DEPTH_M":1583.95,"BOREHOLE_BASE_DEPTH_M":1584.06,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NT","COUNTRY":"AUS","LAT_GDA94":-18.9732532761,"LONG_GDA94":137.7849684567,"ELEV_M_AHD":262,"ACCURACY_M":3,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2021-04-23","SAMPLE_ORIGINATOR":"Grosjean, E.","SAMPLE_PHOTO":"Y","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73615","AGE_REF":"Kositcin, N., Carson, C.J., 2022. Exploring for the Future: SHRIMP U-Pb geochronology of NDI Carrara 1, South Nicholson region, Northern Territory. Geoscience Australia. Record, 2022/42, 56p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.11636/Record.2022.042","AGE_ENTRY_DATE":"2022-11-21","AGE_LAST_UPDATED":null}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.6744","geometry":{"type":"Point","coordinates":[116.15233,-24.1568]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":6744,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU6660846","IGSN":"10273/AU6660846","SAMPLENO":6660846,"SAMPLE_ID":"88407.1","AGE_MA":1794,"AGE_MA_UNCERTAINTY":8,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"not captured","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"U/Pb not captured","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"age of igneous crystallization","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSWA","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":null,"LITHOLOGY":null,"MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"MOUNT PHILLIPS_88407.1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS648607","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Gascoyne Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-24.1568,"LONG_GDA94":116.15233,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Geological Survey of Western Australia geochronology dataset","AGE_PUBLICATION_LINKS":"http://geodownloads.dmp.wa.gov.au/downloads/Geochron/pdfs/88407.1.pdf","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2021-01-14"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.8149","geometry":{"type":"Point","coordinates":[150.6096556,-31.5000778]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":8149,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU2152712","IGSN":"10273/AU2152712","SAMPLENO":2152712,"SAMPLE_ID":"SLK01-18","AGE_MA":256.59,"AGE_MA_UNCERTAINTY":0.12,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.83,"NUMBER_OF_ANALYSES":8,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"isotope dilution: chemical abrasion and isotope dilution","ANALYTICAL_COLLECTION_SYSTEM":"TIMS: GV Isoprobe-T","LABORATORY_NAME":"Boise State University","AGE_INTERPRETED_FROM_SOURCE":"primary volcanic","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"age interpreted to represent time of crystallisation of primary igneous zircons in ash tuff","AGE_SOURCE":"Original publication","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":null,"LITHOLOGY":null,"MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"Slacksmith 1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH568349","BOREHOLE_TOP_DEPTH_M":133.43,"BOREHOLE_BASE_DEPTH_M":134.3,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":"Gunnedah Basin","STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-31.5000778,"LONG_GDA94":150.6096556,"ELEV_M_AHD":355,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":null,"SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"70878","AGE_REF":"Laurie, J.R., Bodorkos, S., Nicoll, R.S., Crowley, J.L., Mantle, D.J., Mory, A.J., Wood, G.R., Backhouse, J., Holmes, E.K., Smith, T.E., Champion, D.C., 2016. Calibrating the middle and late Permian palynostratigraphy of Australia to the geologic time-scale via U-Pb zircon CA-IDTIMS dating. Australian Journal of Earth Sciences, 63(6), 701-730.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099.2016.1233456","AGE_ENTRY_DATE":"2021-01-15","AGE_LAST_UPDATED":"2024-12-19"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.1046","geometry":{"type":"Point","coordinates":[125.1581306,-27.052325]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":1046,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU2152080","IGSN":"10273/AU2152080","SAMPLENO":2152080,"SAMPLE_ID":"GSWA 181150","AGE_MA":1313,"AGE_MA_UNCERTAINTY":13,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.8,"NUMBER_OF_ANALYSES":9,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"GA6224","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Geoscience Australia","AGE_INTERPRETED_FROM_SOURCE":"Maximum depositional age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Sixty-six analyses were undertaken on 66 zircon grains, and the analyses are characterised by a wide range of U contents (56-629 ppm), Th contents (50-574 ppm) and Th/U (0.15-1.88). The analyses record 207Pb/206Pb ages between ~2630 Ma and ~1285 Ma, with dominant age clusters at ~1800 Ma, at ~1750 Ma and at ~1670 Ma, as well as 29 analyses with ages between ~1438 Ma and the youngest individual age (from 080.14.1.1) at ~1285 Ma. The MSWD value of 5.9 for the weighted mean 207Pb/206Pb age of the post-1440 Ma cluster (n = 29) indicates that it is not a single population. Mixture modelling of this cluster assuming the presence of three resolvable age components yields a youngest modelled age of 1313 +/- 11 Ma (2sigma; fraction = 0.30). Alternatively, using the MSWD as a guide for the youngest statistically coherent group provides a weighted mean age of 1313 +/- 13 Ma (95% confidence) for the youngest 9 analyses in this cluster (MSWD = 1.8; probability of fit = 0.069). Given that these two age calculations are within error of each other, the weighted mean age is used to define the maximum depositional age for this sample.The weighted mean 207Pb/206Pb age of 1313 +/- 13 Ma (95% confidence) obtained from the youngest 9 analyses is used to define the maximum age for deposition of the sandstone.","AGE_SOURCE":"Updated from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 20 September 2019","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"siliciclastic sedimentary rock","LITHOLOGY":"silty sandstone","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"fine grained silty sandstone","SAMPLING_FEATURE_NAME":"GSWA Empress 1A","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH438190","BOREHOLE_TOP_DEPTH_M":1546.2,"BOREHOLE_BASE_DEPTH_M":1546.6,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-27.052325,"LONG_GDA94":125.1581306,"ELEV_M_AHD":449,"ACCURACY_M":0,"LOCATION_METHOD":"company supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Neumann, N.L.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"69611","AGE_REF":"Korsch, R.J., Blewett, R.S., Pawley, M.J., Carr, L.K., Hocking, R.M., Neumann, N.L., Smithies, R.H., Quentin de Gromard, R., Howard, H.M., Kennett, B.L.N., Aitken, A.R.A., Holzschuh, J., Duan, J., Goodwin, J., Jones, T., Gessner, K., Gorczyk, W., 2013. Geological setting and interpretation of the southwest half of deep seismic reflection line 11GA-YO1: Yamarna Terrane of the Yilgarn Craton and the western Officer Basin. In: Neumann, N.L. (ed.) Yilgarn Craton-Officer Basin-Musgrave Province Seismic and MT Workshop. Geoscience Australia. Record, 2013/28, 24-50.","AGE_PUBLICATION_LINKS":"http://pid.geoscience.gov.au/dataset/ga/76664","AGE_ENTRY_DATE":"2014-09-27","AGE_LAST_UPDATED":"2020-04-24"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15836","geometry":{"type":"Point","coordinates":[146.271878,-20.287633]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15836,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11086418","IGSN":"10.60494/znya-6e64","SAMPLENO":11086418,"SAMPLE_ID":"93-913","AGE_MA":296,"AGE_MA_UNCERTAINTY":2,"AGE_CONFIDENCE_LEVEL":"1 standard deviation","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"total fusion","GEOLOGICAL_EVENT":"significance unknown","ISOTOPIC_SYSTEM":"K/Ar","ISOTOPIC_RATIO":"40K/40Ar","MINERAL":"Sericite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"unknown: unknown","ANALYTICAL_COLLECTION_SYSTEM":"unknown: unknown","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"Not explicitly stated.","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"breccia that contains sericite associated with pre-Porphyry Phase III (pre-mineralisation; Wormald et al. 1993) quartz-Mo veins. The maximum and minimum ages are broadly concordant for all samples and the range in dates may be explained by the presence of sericite of more than one age in the separates.  As the minimum ages from the laser experiments and the step heat work are all broadly concordant at ca 295-290 Ma this may suggest that the latter is an approximationto the age of the young hydrothermal mica and hence Au mineralisation.","AGE_SOURCE":null,"PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"rock","LITHOLOGY":"breccia","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"unknown","SAMPLE_DESC":"serecite sample containing minor plagioclase that was extracted from a breccia that contains sericite associated with pre-Porphyry Phase III (pre-mineralisation; Wormald et al. 1993) quartz-Mo veins","SAMPLING_FEATURE_NAME":"MOUNT LEYSHON","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS1041956","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-20.287633,"LONG_GDA94":146.271878,"ELEV_M_AHD":null,"ACCURACY_M":250,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Perkins, C.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"22611","AGE_REF":"Perkins, C., Kennedy, A.K., 1998. Permo-Carboniferous gold epoch of northeast Queensland. Australian Journal of Earth Sciences, 45(2), 185-200.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099808728381","AGE_ENTRY_DATE":"2026-05-08","AGE_LAST_UPDATED":"2026-06-09"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15837","geometry":{"type":"Point","coordinates":[146.271878,-20.287633]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15837,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11086418","IGSN":"10.60494/znya-6e64","SAMPLENO":11086418,"SAMPLE_ID":"93-913","AGE_MA":299.1,"AGE_MA_UNCERTAINTY":4.6,"AGE_CONFIDENCE_LEVEL":"1 standard deviation","AGE_MSWD":null,"NUMBER_OF_ANALYSES":8,"CALCULATION_TYPE":"arithmetic mean","GEOLOGICAL_EVENT":"significance unknown","ISOTOPIC_SYSTEM":"Ar/Ar","ISOTOPIC_RATIO":"40Ar/39Ar","MINERAL":"Sericite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"laser heating: unknown model","ANALYTICAL_COLLECTION_SYSTEM":"NG-MS: VG3600","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"Not explicitly stated.","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"mean of the total fusion dates derived by laser. The laser method of 40Ar/39Ar dating of small aggregate grains of alteration sericite was attempted in an effort to resolve the presence of micas of different ages in the samples. As the minimum ages from the laser experiments and the step heat work are all broadly concordant at ca 295-290 Ma this may suggest that the latter is an approximationto the age of the young hydrothermal mica and hence Au mineralisation.","AGE_SOURCE":null,"PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"rock","LITHOLOGY":"breccia","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"unknown","SAMPLE_DESC":"serecite sample containing minor plagioclase that was extracted from a breccia that contains sericite associated with pre-Porphyry Phase III (pre-mineralisation; Wormald et al. 1993) quartz-Mo veins","SAMPLING_FEATURE_NAME":"MOUNT LEYSHON","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS1041956","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-20.287633,"LONG_GDA94":146.271878,"ELEV_M_AHD":null,"ACCURACY_M":250,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Perkins, C.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"22611","AGE_REF":"Perkins, C., Kennedy, A.K., 1998. Permo-Carboniferous gold epoch of northeast Queensland. Australian Journal of Earth Sciences, 45(2), 185-200.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099808728381","AGE_ENTRY_DATE":"2026-05-08","AGE_LAST_UPDATED":"2026-06-09"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.6996","geometry":{"type":"Point","coordinates":[120.03649,-21.4455]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":6996,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU6661070","IGSN":"10273/AU6661070","SAMPLENO":6661070,"SAMPLE_ID":"178084.1","AGE_MA":3311,"AGE_MA_UNCERTAINTY":3,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.96,"NUMBER_OF_ANALYSES":22,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"age of igneous crystallization","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSWA","PROJECT":null,"STRATNO":41170,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU41170","STRAT_UNIT_NAME":"Carbana Monzogranite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Carbana Monzogranite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"monzogranite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"NULLAGINE_178084.1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS648831","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Pilbara Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-21.4455,"LONG_GDA94":120.03649,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Nelson, DR, Bodorkos, S, Love, GJ and Wingate, MTD 2006, 178084: biotite-hornblende monzogranite, Tony Well; Geochronology Record 630: Geological Survey of Western Australia, 4p.","AGE_PUBLICATION_LINKS":"http://geodownloads.dmp.wa.gov.au/downloads/Geochron/pdfs/178084.1.pdf","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2020-11-16"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14982","geometry":{"type":"Point","coordinates":[137.462675,-36.072003]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14982,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9679031","IGSN":"10.60494/gxsq-2111","SAMPLENO":9679031,"SAMPLE_ID":"6325RS7B","AGE_MA":500,"AGE_MA_UNCERTAINTY":7,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"Magmatic crystallisation age.","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Foden et al. (2002) cited this date and attributed it to Fanning (1990), but Fanning (1990) contains no ion-probe data, merely indeterminate single-grain TIMS analyses.","AGE_SOURCE":"Unpublished GSSA compilation","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Composite dykes, Cape Hart-Cape Gantheaume, Kangaroo Island","UNIT_NAME_SOURCE":"Composite dykes, Cape Hart-Cape Gantheaume, Kangaroo Island","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"rhyodacite","MODE_OF_OCCURRENCE":"dyke","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Foden et al. (2002): More than 20 composite dykes cut the deformed Kanmantoo Group on the SE coast of Kangaroo Island, between Cape Hart and Cape Gantheaume. These have a strongly clustered NW (3258) orientation and are vertically dipping. The Kangaroo Island dykes appear largely to post-date Delamerian folding and contain no tectonic fabric or, rarely, a weak cross-cutting one. Although the early regional fabrics that are cross-cut are in different orientations, the Kangaroo Island dykes have exactly the same orientation as the dolerite dyke swarm at Woodside further N in the belt, about 50 km E of Adelaide. With their implication of a common dilation direction, both dyke complexes are attributed to the onset of the first stages of post-Delamerian broadly eastward extension. These dykes have been dated at Cape Gantheaume (sample 6325RS7B) at 500 +/- 7 Ma by SHRIMP U-Pb analysis of zircons. The Kangaroo Island dykes are between 0.5 and 4 m wide and are interesting because most are composite, with mafic and felsic (rhyodacite) components. A few are either entirely mafic or felsic. The dykes commonly show mafic borders with felsic interiors, implying initial injection of mafic melts. In most composite dykes the felsic and mafic magmas are mingled, with the rhyodacite hosting convolute-amoeboid enclaves of basaltic melt, indicating that the two melts were contemporaneous. The felsic dyke rocks are porphyritic with rounded and embayed quartz phenocrysts, together with phenocrysts of plagioclase and K-feldspar, in a fine-grained, dark, recrystallized matrix. The mafic dyke rocks have plagioclase intergrown with augite (mostly replaced by amphibole) in a doleritic texture.","SAMPLING_FEATURE_NAME":"6325RS7B","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS923934","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-36.072003,"LONG_GDA94":137.462675,"ELEV_M_AHD":null,"ACCURACY_M":200,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":"Cape Gantheaume, Kangaroo Island. GSSA SiteNo 137301, which has rock sample R17493, with comment \"Previously RS 7B...\".","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Geological Survey of South Australia","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Fanning, C.M., unpublished.","AGE_PUBLICATION_LINKS":null,"AGE_ENTRY_DATE":"2024-08-06","AGE_LAST_UPDATED":"2024-09-27"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.14983","geometry":{"type":"Point","coordinates":[138.1273053,-35.8378225]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":14983,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU9679032","IGSN":"10.60494/ptpe-ch98","SAMPLENO":9679032,"SAMPLE_ID":"6526RS142","AGE_MA":509,"AGE_MA_UNCERTAINTY":7,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"Magmatic crystallisation age.","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Foden et al. (2002) cited this date and attributed it to Fanning (1990), but Fanning (1990) contains no ion-probe data, merely indeterminate single-grain TIMS analyses.","AGE_SOURCE":"Unpublished GSSA compilation","PROJECT":null,"STRATNO":34794,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU34794","STRAT_UNIT_NAME":"Cape Willoughby Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Cape Willoughby granite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"SARIG: Cape Willoughby Granite, megacrystic. I-type, syn-tectonic. Age 508+/-7 Ma (U-Pb). Foden et al. (2002): The Cape Willoughby Granite has contacts exposed on the NE and SE coasts of Kangaroo Island, and appears to be a roughly layer-parallel sheet-like intrusion into the host Kanmantoo Group turbiditic sedimentary rocks. This granite has been dated at 509 +/- 7 Ma by SHRIMP U–Pb analysis of zircons. The granite has evolved thin, leucocratic, sill-like apophyses, which also intrude the host succession layer-parallel and which are boudinaged. The Cape Willoughby Granite is a mildly peraluminous, leucocratic, siliceous (>75% SiO2) S-type granite. It is composed of quartz, K-rich microcline and relatively scarce plagioclase, muscovite and biotite.","SAMPLING_FEATURE_NAME":"6526RS142","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS923935","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Delamerian Orogen","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-35.8378225,"LONG_GDA94":138.1273053,"ELEV_M_AHD":null,"ACCURACY_M":200,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":"Cape Willoughby, Kangaroo Island. GSSA SiteNo 138467, which has rock sample R22072, with comment \"Age 508+/-7 Ma (U-Pb)\".","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Geological Survey of South Australia","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Fanning, C.M., unpublished.","AGE_PUBLICATION_LINKS":null,"AGE_ENTRY_DATE":"2024-08-06","AGE_LAST_UPDATED":"2024-09-27"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15283","geometry":{"type":"Point","coordinates":[137.3293657,-32.4671333]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15283,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11034280","IGSN":"10.60494/31ww-xb77","SAMPLENO":11034280,"SAMPLE_ID":"2116682","AGE_MA":1590.4,"AGE_MA_UNCERTAINTY":0.7,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.7,"NUMBER_OF_ANALYSES":6,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"isotope dilution: chemical abrasion and isotope dilution","ANALYTICAL_COLLECTION_SYSTEM":"TIMS: GV Isoprobe-T","LABORATORY_NAME":"Boise State University","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":79615,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU79615","STRAT_UNIT_NAME":"Spearfelt Rhyodacite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Spearfelt Rhyodacite, lower Gawler Range Volcanics","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid volcanic rock","LITHOLOGY":"rhyodacite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Jagodzinski et al 2023: 2116682 is a porphyritic rhyodacite composed of moderately abundant, randomly oriented phenocrysts comprising magmatically-resorbed plagioclase (25%) >> ferromagnesians likely pyroxene (5%) > Fe-Ti oxide likely magnetite (1%) = quartz (1%) in a devitrified groundmass of microgranular K-feldspar > quartz > plagioclase >> apatite. The groundmass displays textural gradation from fine-grained, massive Kfeldspar mantling the crystals into intervening areas that are slightly coarser grained, composed of quartz poikocrysts enclosing small, randomly oriented K-feldspar prisms. Subsequent pervasive alteration at relatively low temperature generated an albite + hematite + phyllosilicates (sericite, clays) + leucoxene assemblage, with plagioclase replaced by albite and minor sericite, ferromagnesians replaced by fine-grained clay (? illite), leucoxene replacing Fe-Ti oxides, and K-feldspar in the groundmass clouded by fine- grained hematite.","SAMPLING_FEATURE_NAME":"RC 1","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH895267","BOREHOLE_TOP_DEPTH_M":15.65,"BOREHOLE_BASE_DEPTH_M":16.77,"GEOLOGICAL_PROVINCE":"Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-32.4671333,"LONG_GDA94":137.3293657,"ELEV_M_AHD":120,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2015-03-10","SAMPLE_ORIGINATOR":"Jagodzinski, E.A.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75868","AGE_REF":"Jagodzinski, E.A., Reid, A.J., Crowley, J.L., Wade, C.E., 2023. Precise zircon U-Pb dating of the Mesoproterozoic Gawler large igneous province, South Australia. Results in Geochemistry, 10, article 100020, 16p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.ringeo.2022.100020","AGE_ENTRY_DATE":"2025-10-29","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15693","geometry":{"type":"Point","coordinates":[137.607093,-33.883595]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15693,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11083964","IGSN":"10.60494/x2w5-d854","SAMPLENO":11083964,"SAMPLE_ID":"R142524","AGE_MA":1591,"AGE_MA_UNCERTAINTY":19,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.6,"NUMBER_OF_ANALYSES":10,"CALCULATION_TYPE":"upper concordia intercept","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/235U and 206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation, intrusive","OTHER_AGE_INTERPRETED_FROM_SOURCE":"lower intercept concordia = 607 +/- 84 Ma.","AGE_REMARK_FROM_SOURCE":"Zircons from this sample are notably metamict and altered, so this upper intercept age provides an estimate only.","AGE_SOURCE":"GSSA/Original publication","PROJECT":null,"STRATNO":26941,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU26941","STRAT_UNIT_NAME":"Tickera Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Tickera Granite equivalent","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"R142524","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS1008670","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-33.883595,"LONG_GDA94":137.607093,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":"Point Riley, Wallaroo, Yorke Peninsula","SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Bodorkos, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"65376; 74366","AGE_REF":"Conor, C.H.H., 1995. Moonta-Wallaroo region - South Australian Exploration Initiative. Prospectivity re-assessment and GIS data package (compiled 1994-1995). South Australia. Department of Mines and Energy. Open File Envelope, 8886, 551p.; Fanning, C.M., Reid, A.J., Teale, G.S., 2007. A geochronological framework for the Gawler Craton, South Australia. Geological Survey of South Australia Bulletin, 55, 258p.","AGE_PUBLICATION_LINKS":"https://pid.sarig.sa.gov.au/document/2018d037833; https://pid.sarig.sa.gov.au/document/mesac14099","AGE_ENTRY_DATE":"2025-11-18","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15611","geometry":{"type":"Point","coordinates":[136.4172787,-32.6584704]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15611,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU11083810","IGSN":"10.60494/hd3g-fz77","SAMPLENO":11083810,"SAMPLE_ID":"R1124961","AGE_MA":1594,"AGE_MA_UNCERTAINTY":11,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.3,"NUMBER_OF_ANALYSES":16,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP I","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"timing of igneous zircon crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Samples R1124962 and R1124961 are interpreted to bracket the timing of mineralisation at Menninnie Dam. The ages for these samples have been reported previously (Roache 1997 & Roache and Fanning 1994; 1590 +/- 9 Ma, n = 19) under different sample numbers, but the original raw SHRIMP data has been reprocessed for this publication and superceeds the previous age.","AGE_SOURCE":"GSSA/Original publication","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"weakly altered rhyolite dyke, Menninnie Dam","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":null,"LITHOLOGY":null,"MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"MENNINNIE DAM MD 30","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH910639","BOREHOLE_TOP_DEPTH_M":506.2,"BOREHOLE_BASE_DEPTH_M":506.2,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-32.6584704,"LONG_GDA94":136.4172787,"ELEV_M_AHD":298,"ACCURACY_M":100,"LOCATION_METHOD":"State or NT agency supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Geological Survey of South Australia","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"65376; 74485","AGE_REF":"Fanning, C.M., Reid, A.J., Teale, G.S., 2007. 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Plagioclase was strongly altered by sericite whilst biotite was replaced by chlorite.","SAMPLING_FEATURE_NAME":"MG","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS1083072","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-21.6946968066,"LONG_GDA94":139.904240245,"ELEV_M_AHD":null,"ACCURACY_M":99,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"3000-01-01","SAMPLE_ORIGINATOR":"Le, T.X.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"76529","AGE_REF":"Le, T.X., Dirks, P.H.G.M., Sanislav, I.V., Huizenga, J.M., Cocker, H.A., Manestar, G.N., 2021, Geochronological constraints on the geological history and gold mineralization in the Tick Hill region, Mt Isa Inlier. Precambrian Research, 366.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/j.precamres.2021.106422.","AGE_ENTRY_DATE":"2026-06-09","AGE_LAST_UPDATED":"2026-06-09"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.6475","geometry":{"type":"Point","coordinates":[117.51003,-27.8928]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":6475,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU6660860","IGSN":"10273/AU6660860","SAMPLENO":6660860,"SAMPLE_ID":"155502.1","AGE_MA":2686,"AGE_MA_UNCERTAINTY":4,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"not captured","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"U/Pb not captured","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"age of igneous crystallization","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSWA","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":null,"LITHOLOGY":null,"MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":null,"SAMPLING_FEATURE_NAME":"CUE_155502.1","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS648621","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Yilgarn Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-27.8928,"LONG_GDA94":117.51003,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2000-01-01","SAMPLE_ORIGINATOR":"Jones, S.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Geological Survey of Western Australia geochronology dataset","AGE_PUBLICATION_LINKS":"http://geodownloads.dmp.wa.gov.au/downloads/Geochron/pdfs/155502.1.pdf","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2021-01-14"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.13693","geometry":{"type":"Point","coordinates":[140.207106,-32.13440155]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":13693,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1926774","IGSN":"10273/AU1926774","SAMPLENO":1926774,"SAMPLE_ID":"R995783","AGE_MA":1728,"AGE_MA_UNCERTAINTY":8,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.6,"NUMBER_OF_ANALYSES":9,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"Z4697","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"Maximum depositional age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":29887,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU29887","STRAT_UNIT_NAME":"Bimba Formation","INFORMAL_UNIT_NAME":"basal quartzite, Bimba Formation, Ameroo Hill","UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metasedimentary siliciclastic rock","LITHOLOGY":"quartzite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"The quartzite forms prominent rib along a ridge crest east of the low saddle at Ameroo Hill. The sample was collected to determine the depositional age of the Bimba Formation, and the age of an early migmatisation event, the latter to test the hypothesis of high-grade deformation pre-dating the Olarian Orogeny (Gibson and Nutman 2004). In thin section, this sample displays an inequigranular granoblastic metamorphic texture. Quartz dominates the rock, occurring as equant anhedral grains mostly ~0.4-1.0 mm in size. All display weak shadowy strain extinction. The size and shape of the quartz grains allows the interpretation that primary quartz particles have suffered grain boundary migration and suturing during metamorphism. K-feldspar is moderately abundant, forming smaller anhedral grains and aggregates ~0.2-0.4 in size. They lie in granoblastic equilibrium texture with the quartz, and occupy interstices between the larger quartz grains. Some of the K-feldspar grains display the combined albite-pericline twinning (‘tartan’ twinning) that is characteristic of microcline. Rare twinned plagioclase grains are identified in contact with K-feldspar grains. Muscovite occurs in minor amount as large platy flakes up to ~1 mm in size. They lack a preferred orientation. Opaques occur in significant amount for an accessory phase. They form small equant crystals mostly ~0.1-0.2 mm in size, disseminated uniformly throughout the rock. Their size and shape suggest they are ?magnetite. Biotite occurs in minor amount as small pleochroic brown flakes ~0.2-0.4 mm long. They are sparsely distributed through the rock. Tourmaline occurs in trace amount as pleochroic green grains. Rutile is uncommon, forming small granules in small loose aggregates that possibly represent severely modified precursor Fe-Ti oxide grains (? ilmenite). Zircon occurs in significant amount for an accessory phase.","SAMPLING_FEATURE_NAME":"R995783","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS429141","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":"Broken Hill Region","REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-32.1344015452,"LONG_GDA94":140.2071060043,"ELEV_M_AHD":323,"ACCURACY_M":50,"LOCATION_METHOD":"unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"2006-10-02","SAMPLE_ORIGINATOR":"Jagodzinski, E.A.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75054","AGE_REF":"Jagodzinski, E.A., Kositcin, N., Michael, U., Bodorkos, S., 2023, 2023 data release of U-Pb dates for the Curnamona Province in South Australia: advances in the stratigraphy of the Olary Domain. Australian Earth Sciences Convention, Perth, June 2023. Geological Society of Australia Abstracts, Poster.","AGE_PUBLICATION_LINKS":"https://doi.org/10.13140/RG.2.2.12189.90088","AGE_ENTRY_DATE":"2023-06-25","AGE_LAST_UPDATED":null}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15083","geometry":{"type":"Point","coordinates":[150.79287053,-23.16280999]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15083,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU8026445","IGSN":"10.60494/jpsr-1b53","SAMPLENO":8026445,"SAMPLE_ID":"BSMH053","AGE_MA":77.47,"AGE_MA_UNCERTAINTY":0.46,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.46,"NUMBER_OF_ANALYSES":21,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":"GA6503","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Geoscience Australia","AGE_INTERPRETED_FROM_SOURCE":"Magmatic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":12790,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU12790","STRAT_UNIT_NAME":"Mount Hedlow Trachyte","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Mount Hedlow Trachyte at Double Head","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate volcanic rock","LITHOLOGY":"comendite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"The Mount Hedlow Trachyte comprises 18 small peralkaline rhyolite to trachyte bodies in the region between Rockhampton and Yeppoon and forms coastal exposures between Yeppoon and Kinka Beach on the central Queensland coast. Individual bodies form rounded domes or plugs that are partly surrounded by basaltic lava flows. Contacts with surrounding country rocks, which include Devonian to Carboniferous metasedimentary units and unnamed serpentinites, are steeply dipping. The largest body, known as Gai-i, is oval-shaped, ca 1.5 x 1 km and reaches an elevation of 393 m (Purdy and Bultitude, 2022). Previous geochronology for components of the Mount Hedlow Trachyte has yielded a range of results, with whole-rock K-Ar dates of 71 +/- 1.4 Ma (Webb, 1967; Harding, 1969), and 70.8 Ma (Wellman, 1978) supplanted by reconnaissance U-Pb SHRIMP data (comprising just nine analyses of zircons obtained from three different peralkaline bodies) spanning the range 73-80 +/- 3 Ma (Sutherland et al., 1996). More recently, alkali feldspar phenocrysts and groundmass samples from three bodies (Pine Mountain; Mount Baga; Double Head) yielded 40Ar/39Ar dates between 74 +/- 1 Ma and 76 +/- 1 Ma (Cohen, 2007). Murray et al. (2012) obtained a U-Pb zircon IDTIMS date of 167.8 +/- 0.5 Ma, which cannot readily be explained.\r\nIn addition to the rhyolite from Gai-i (8026444/BSMH017), a second sample of Mount Hedlow Trachyte (8026445/BSMH053) was collected from an old quarry near Pebble Beach in the Roslyn Bay/Double Head area southeast of Yeppoon. The rhyolite here and further south at Bluff Point are distal to the main mass of Mount Hedlow Trachyte domes and was selected for geochronology to confirm correlation. The sample is a fine-grained grey-green comendite  with feldspar and pyroxene phenocrysts and glomerocrysts in an aphanitic groundmass.","SAMPLING_FEATURE_NAME":"BSMH053","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS867639","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-23.1628099908,"LONG_GDA94":150.7928705334,"ELEV_M_AHD":null,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Geological Survey of Queensland (GSQ)","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"75851","AGE_REF":"Kositcin, N., Purdy, D.J., Beattie, E., Spence, J., von Gnielinski, F.E., Simpson, B.P., Platt, S., 2024. Summary of results. Joint GSQ-GA Geochronology Project: Peralkaline Magmatic Systems and Northeast Queensland Deposits projects, 2023-2024. Geoscience Australia. Record, 2024/53, 93p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.26186/149782","AGE_ENTRY_DATE":"2024-10-30","AGE_LAST_UPDATED":"2024-10-30"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.3672","geometry":{"type":"Point","coordinates":[77.84,-68.81]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":3672,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1470119","IGSN":"10273/AU1470119","SAMPLENO":1470119,"SAMPLE_ID":"88285002","AGE_MA":1057,"AGE_MA_UNCERTAINTY":16,"AGE_CONFIDENCE_LEVEL":"asymmetric 95% confidence","AGE_MSWD":2.2,"NUMBER_OF_ANALYSES":17,"CALCULATION_TYPE":"upper concordia intercept","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"238U/206Pb and 207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"U8121","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP I","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"Age of magmatic crystallization of (meta-)igneous rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Data migrated from OZCHRON1. Original comment: Regression through all the analyses yields concordia ages of 1054Ma the crystallisation time of this felsic rock and 547 Ma which prob reflects almost total loss of Pb from some grains, rather than new zircon growth. Published age 1057 +22/-10 Ma","AGE_SOURCE":"Inserted from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 23 October 2019","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":"Filla Island melt phase","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metamorphosed basic igneous rock","LITHOLOGY":"granulite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"GNT-QZ-OPX-Pl granulite, Op-bearing melt phase in granulite","SAMPLING_FEATURE_NAME":"88285002","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS129509","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":null,"GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":"Rauer Islands","STATE":"AAT","COUNTRY":"ATA","LAT_GDA94":-68.81,"LONG_GDA94":77.84,"ELEV_M_AHD":null,"ACCURACY_M":999,"LOCATION_METHOD":"method unknown","LOCATION_DESC":"Prydz Bay Coast. Filla Island C","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Sheraton, J.W.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"1492","AGE_REF":"Kinny, P.D., Black, L.P., Sheraton, J.W., 1993. Zircon ages and the distribution of Archaean and Proterozoic rocks in the Rauer Islands. 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Metallogenic setting and temporal evolution of porphyry Cu-Mo mineralization and alteration in the Delamerian Orogen, South Australia: Insights from zircon U-Pb, molybdenite Re-Os, and in situ white mica Rb-Sr geochronology. 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Geological setting and interpretation of the southwest half of deep seismic reflection line 11GA-YO1: Yamarna Terrane of the Yilgarn Craton and the western Officer Basin. In: Neumann, N.L. (ed.) Yilgarn Craton-Officer Basin-Musgrave Province Seismic and MT Workshop. Geoscience Australia. 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The diamond drillhole is located within the North Portia mine. The sample is a white, graded, ultra-fine-grained granoblastic quartzofeldspathic rock (volcanic tuff), with broken feldspar grains at the base up to 0.2mm. 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A multi-technique evaluation of hydrothermal hematite Usingle bondPb isotope systematics: Implications for ore deposit geochronology. 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Deletion of three discordant points (55.2, 63.1, 73.1) does not alter the result.","AGE_SOURCE":"Updated from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 20 September 2019","PROJECT":null,"STRATNO":76084,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU76084","STRAT_UNIT_NAME":"Teena Dolostone","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Teena Dolostone","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous volcanic rock","LITHOLOGY":"ash tuff","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"pink tuff, 1m thick, top of Teena","SAMPLING_FEATURE_NAME":"91779034","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS170789","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"McArthur Basin","GEOLOGICAL_REGION_NAME":"McArthur Region","REGION_NAME_SOURCE":null,"STATE":"NT","COUNTRY":"AUS","LAT_GDA94":-16.4805535118,"LONG_GDA94":136.0666859573,"ELEV_M_AHD":44,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Page, R.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"23398","AGE_REF":"Page, R.W., Jackson, M.J., Krassay, A.A., 2000. Constraining sequence stratigraphy in north Australian basins: SHRIMP U-Pb zircon geochronology between Mt Isa and McArthur River. Australian Journal of Earth Sciences, 47(3), 431-459.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1046/j.1440-0952.2000.00797.x","AGE_ENTRY_DATE":"2017-09-21","AGE_LAST_UPDATED":"2021-06-08"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.7907","geometry":{"type":"Point","coordinates":[135.86619183,-16.61288927]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":7907,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1496310","IGSN":"10273/AU1496310","SAMPLENO":1496310,"SAMPLE_ID":"91779036","AGE_MA":1634,"AGE_MA_UNCERTAINTY":20,"AGE_CONFIDENCE_LEVEL":"not reported","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"not reported","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"U/Pb not captured","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Unknown","AGE_INTERPRETED_FROM_SOURCE":"sedimentary depositional (max)","OTHER_AGE_INTERPRETED_FROM_SOURCE":"NA","AGE_REMARK_FROM_SOURCE":"* have combined 3 different sub-samples and selected youngest constraint (note have doubled age error to 2sigma). Data migrated from OZCHRON1. Original comment: 'This is a very approximate age and the error is 1sigma only. Only 3 grains found in the rock.'; Data migrated from OZCHRON1. Original comment: 'A very approximate age only, the error is 1sigma, and only 6 grains found in the rock. Other detrital ages are 1756, 1822, 1862 Ma.'; Data migrated from OZCHRON1. Original comment: 'This is the age of the younger of only two grains (error 1sigma), has no stratigraphic meaning; the other is 1867 Ma.'","AGE_SOURCE":"Neumann & Fraser, 2007","PROJECT":null,"STRATNO":10891,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU10891","STRAT_UNIT_NAME":"Lynott Formation","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Lynott Formation","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous volcanic rock","LITHOLOGY":"ash tuff","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"pink tuff, 2cm thick","SAMPLING_FEATURE_NAME":"91779036","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS170790","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"McArthur Basin","GEOLOGICAL_REGION_NAME":"McArthur Region","REGION_NAME_SOURCE":null,"STATE":"NT","COUNTRY":"AUS","LAT_GDA94":-16.6128892661,"LONG_GDA94":135.8661918264,"ELEV_M_AHD":96,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":"Leila Hill","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Page, R.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"23398","AGE_REF":"Page, R.W., Jackson, M.J., Krassay, A.A., 2000. Constraining sequence stratigraphy in north Australian basins: SHRIMP U-Pb zircon geochronology between Mt Isa and McArthur River. Australian Journal of Earth Sciences, 47(3), 431-459.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1046/j.1440-0952.2000.00797.x","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2020-11-16"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.305","geometry":{"type":"Point","coordinates":[135.740527,-16.7577206]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":305,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1496311","IGSN":"10273/AU1496311","SAMPLENO":1496311,"SAMPLE_ID":"91779038","AGE_MA":1613.4,"AGE_MA_UNCERTAINTY":3.6,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.93,"NUMBER_OF_ANALYSES":33,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"Z2640","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"Age of magmatic crystallization of (meta-)igneous rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Data migrated from OZCHRON1. Original comment: This is an excellent stratigraphic age based on all 33 data points that form a coherent cluster in 207/206 and are all concordant. It is in good agreement with 95779074 (1609+/-3 Ma).","AGE_SOURCE":"Updated from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 20 September 2019","PROJECT":null,"STRATNO":76089,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU76089","STRAT_UNIT_NAME":"Balbirini Dolostone","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Balbirini Dolostone","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"igneous volcanic rock","LITHOLOGY":"tuffite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"massive pink tuffite?","SAMPLING_FEATURE_NAME":"91779038","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS170791","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"McArthur Basin","GEOLOGICAL_REGION_NAME":"McArthur Region","REGION_NAME_SOURCE":null,"STATE":"NT","COUNTRY":"AUS","LAT_GDA94":-16.7577206035,"LONG_GDA94":135.7405269966,"ELEV_M_AHD":95,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Page, R.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"23398; 66843","AGE_REF":"Page, R.W., Jackson, M.J., Krassay, A.A., 2000. Constraining sequence stratigraphy in north Australian basins: SHRIMP U-Pb zircon geochronology between Mt Isa and McArthur River. Australian Journal of Earth Sciences, 47(3), 431-459.; Jackson, M.J., Southgate, P.N., Page, R.W., 2000. Gamma ray logs and U-Pb zircon geochronology - essential tools to constrain lithofacies interpretation of Palaeoproterozoic depositional systems. IN: Grotzinger, J.P. and James, P.N. (editors) Carbonate Sedimentation and Diagenesis in the Evolving Precambrian World. SEPM Special Publication, 67, 23-42.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1046/j.1440-0952.2000.00797.x; https://pubs.geoscienceworld.org/books/book/1880/chapter/11529422/Gamma-Ray-Logs-and-U-Pb-Zircon-Geochronology","AGE_ENTRY_DATE":"2018-04-05","AGE_LAST_UPDATED":"2021-06-08"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.392","geometry":{"type":"Point","coordinates":[120.28410633,-29.18098494]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":392,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1513004","IGSN":"10273/AU1513004","SAMPLENO":1513004,"SAMPLE_ID":"96969016","AGE_MA":2693.2,"AGE_MA_UNCERTAINTY":5,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.11,"NUMBER_OF_ANALYSES":13,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"Z2778","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"Age of magmatic crystallization of (meta-)igneous rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"A total of 25 analyses were collected. Data interpretation is complicated by the dearth of simple euhedral grains, and by the necessity to avoid the best-zoned zircon (which is highly metamict). Two analyses sampled high-U (more than 500 ppm) zircon, and yielded post-2500 Ma 207Pb/206Pb dates that are more than 25% discordant. Both are affected by multiple episodes of radiogenic Pb loss, and are not considered further. The remaining 23 analyses include four which sampled large rounded cores, span the 207Pb/206Pb range 3354-3267 Ma, and are therefore interpreted as dating inherited zircon component. A fifth analysis (c. 2840 Ma) is also clearly older than the main population, but it does not represent a core. Notably, there are several other rounded cores morphologically similar to those sampled by the pre-3000 Ma analyses, which yield 207Pb/206Pb ages comparable to the main population. This reflects either isotopic resetting of these cores by the granite magma, or the presence of two temporally unrelated but morphologically similar sets of cores. If the latter explanation is correct, the younger cores probably formed early in the crystallisation of the granite magma. Even after the deletion of these seven outlying analyses, there remains significantly more scatter (MSWD = 7.0) than would be generated by a single population of 18 analyses. Neither morphological features nor chemical characteristics aid in further subdivision of the data, and the process of choosing only those analyses that are less than 10% discordant does not improve the degree of scatter. The remaining option is to be guided by the probability diagram for the remaining 18 analyses in identifying outliers. In addition to the identification of a clearly young (c. 2639 Ma) age in the remaining group, this diagram shows that the residual analyses have a relatively steep younger segment when compared with the trend of the older analyses. Such a trend is consistent with the deviation from normality being at least mostly due to loss of radiogenic Pb from some grains. Based on this premise, a further four younger ages (spanning the range 2677-2666 Ma) have been progressively culled until the remaining population of 13 analyses resembles a normal distribution, with a weighted mean age of 2693.2 +/- 5.0 Ma (95% confidence; MSWD = 1.11, probability = 0.35). Although this is the preferred age for granite crystallisation, its detail is not particularly robust: almost half of the analyses have been rejected, and mostly without independent justification. Nevertheless, the data clearly indicate that granite intrusion did occur at about this time.The weighted mean 207Pb/206Pb date of 2693.2 +/- 5.0 Ma (95% confidence) is tentatively interpreted as the magmatic crystallisation age of the granite.","AGE_SOURCE":"Updated from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 20 September 2019","PROJECT":"Yilgarn NGMA Project","STRATNO":74297,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU74297","STRAT_UNIT_NAME":"low-Ca granite 74297","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"monzogranite","MODE_OF_OCCURRENCE":"pod","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Mainly kaolinised and heavily weathered granite. appears to be pods/dykes of fine- to medium-grained granite intruding more felsic granite. Definite chilling of fine-medium granite. Both granite types foliated. Finer phase confined to areas of better outcrop. Sample comprises mildly foliated grey-pink sparsely biotite-quartz-feldspar porphyritic fine-medium (<1-2 mm) grained biotite monzogranite. Unit occurs as pods (and dykes) within more felsic medium-grained granite. Foliation mild, defined by aligned biotite. Unit contains phenocrysts (<5%), of biotite to 5 mm, quartz to 7 mm and subhedral to anhedral feldspar to 1-2 cm.  Granular to granoblastic texture. Plagioclase: subhedral grains, twinned often faintly, unzoned to mild broad oscillatory zoning, moderate myrmekite development, moderate to locally strong sericite/muscovite and clinozoisite (and carbonate) alteration, plagioclase ~ K-feldspar. K-feldspar: anhedral, mild to moderate perthite development and tartan twinning. Quartz: anhedral, typically moderately undulose. Biotite: 7-8%, irregular flakes, light yellow to brown-red, often chloritic with lesser muscovite, epidote and rutile.  Accessory minerals include zircon, apatite (including quite large grains to 0.5 mm) and opaque minerals.  Secondary phases include white mica, epidote/clinozoisite, chlorite and uncommon carbonate.","SAMPLING_FEATURE_NAME":"96969016","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS85874","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Yilgarn Craton","GEOLOGICAL_REGION_NAME":"Yilgarn Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-29.1809849386,"LONG_GDA94":120.2841063295,"ELEV_M_AHD":499,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"1996-06-16","SAMPLE_ORIGINATOR":"Champion, D.C.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Unpublished data collected by Lance Black, including all data historically cited as \"Black et al. (2002)\". The associated AGSO-GA Record manuscript (Black, L.P., Champion, D.C., Cassidy, K.F., 2002. Compilation of SHRIMP U-Pb geochronology data, Yilgarn Craton, Western Australia, 1998-2000) was never published; however, the interpreted ages and underlying tabular data are available in their entirety from https://portal.ga.gov.au/persona/geochronology, in layers \"Geochronology - All\" and \"SHRIMP Analyses\" respectively.","AGE_PUBLICATION_LINKS":null,"AGE_ENTRY_DATE":"2017-08-31","AGE_LAST_UPDATED":"2024-02-16"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.1203","geometry":{"type":"Point","coordinates":[134.34483832,-19.44441164]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":1203,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1479076","IGSN":"10273/AU1479076","SAMPLENO":1479076,"SAMPLE_ID":"92-227","AGE_MA":1848,"AGE_MA_UNCERTAINTY":7,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.98,"NUMBER_OF_ANALYSES":31,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"U8234","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP I","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"Age of magmatic crystallization of (meta-)igneous rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Data migrated from OZCHRON1. Original comment: Igneous crystallisation of the Tennant Creek Granite northern pluton, based on 31 concordant analyses.","AGE_SOURCE":"Updated from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 20 September 2019","PROJECT":null,"STRATNO":17951,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU17951","STRAT_UNIT_NAME":"Tennant Creek Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Tennant Creek Granite Nth","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Tennant Creek Granite (sheared). Coarse quartz-plagioclase-K-feldspar. Almost complete chlorite alteration of biotite, minor muscovite, sericite-epidote alteration. Accessory magnetite-pyrite-apatite-titanite-zircon-rutile.","SAMPLING_FEATURE_NAME":"90060002","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS148609","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Tennant Creek Block","GEOLOGICAL_REGION_NAME":"Georgina Region","REGION_NAME_SOURCE":null,"STATE":"NT","COUNTRY":"AUS","LAT_GDA94":-19.4444116363,"LONG_GDA94":134.3448383194,"ELEV_M_AHD":333,"ACCURACY_M":100,"LOCATION_METHOD":"1:100 000 map","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Compston, D.M.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"65222; 1900","AGE_REF":"Compston, D.M., 1995. Time constraints on the evolution of the Tennant Creek Block, northern Australia. Precambrian Research, 71, 107-129.; Compston, D.M., 1994, The geochronology of the Tennant Creek Inlier and its ore deposits, Northern Territory. Ph.D. Thesis, Australian National University, 216p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/0301-9268(94)00058-Y; https://doi.org/10.25911/5d77862d585b0","AGE_ENTRY_DATE":"2011-08-25","AGE_LAST_UPDATED":"2021-06-08"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.395","geometry":{"type":"Point","coordinates":[121.92968862,-27.44554139]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":395,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1514083","IGSN":"10273/AU1514083","SAMPLENO":1514083,"SAMPLE_ID":"96969046","AGE_MA":2646.5,"AGE_MA_UNCERTAINTY":2.7,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.15,"NUMBER_OF_ANALYSES":20,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"Z2690","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"Age of magmatic crystallization of (meta-)igneous rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"A total of 42 analyses were collected; however, the 12 analyses acquired during the 17-hour period in which 204Pb was measured in the wrong position have been deleted from the analytical dataset, and are not tabulated. The remaining 30 analyses include two which are more than 10% discordant, and which have been discarded on this criterion. Interpretation of the remaining 28 analyses is made considerably easier by the CL images. As would be expected, the seven analysed cores provide the oldest ages. The oldest three of these yield a weighted mean 207Pb/206Pb age of 2949 +/- 13 Ma (95% confidence; MSWD = 1.58, probability = 0.21) for one inherited component within the granite. The younger cores are indicative of inherited components at c. 2700 Ma (two analyses of one grain) and c. 2680 Ma (two analyses of two grains). The remaining 21 analyses sampled relatively euhedral, mostly zoned, zircon grains that contain no core. Twenty of these analyses (spanning the range 2666-2632 Ma) defines a single population with a weighted mean 207Pb/206Pb date of 2646.5 +/- 2.7 Ma (95% confidence; MSWD = 1.15, probability = 0.29), which is considered to represent the age of granite crystallisation. The single analysis at c. 2611 Ma is interpreted to reflect subtle ancient loss of radiogenic Pb.The weighted mean 207Pb/206Pb date of 2646.5 +/- 2.7 Ma (95% confidence) is interpreted as the magmatic crystallisation age of the granite.","AGE_SOURCE":"Updated from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 20 September 2019","PROJECT":"Yilgarn NGMA Project","STRATNO":72489,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU72489","STRAT_UNIT_NAME":"Red Bore Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"monzogranite","MODE_OF_OCCURRENCE":"pluton","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Foliated and lineated, grey-pink, medium-grained sparsely (quartz-) feldspar porphyritic biotite monzogranite; quartz, plagioclase and K-feldspar phenocrysts less than 1 cm. Strongly foliated, defined by aligned minerals especially biotite; lineation defined by elongate quartz grains in particular. Granoblastic texture. K-feldspar: anhedral to interstitial, moderate to minor perthite, variably developed tartan twining - locally deformed, also deformation twinning, rare crenulated grains. Quartz: common elongate to ribboned grains, with moderately to intensely undulose grains and zones of significantly finer-grained subgrain development (discrete high-strain zones - thin shears). Plagioclase: anhedral to subhedral, twinned, twins commonly curved to strongly kinked, locally fractured with quartz and epidote infill, sericitic and epidote alteration, minor myrmekite development as outgrowths into K-feldspar, plagioclase<K-feldspar. Biotite: <6%, occurs as elongate flakes and trails of grains, mostly chloritic or muscovitic, with rutile and epidote. Accessories include zircon, apatite, and opaques, and minor relict allanite grains.","SAMPLING_FEATURE_NAME":"96969046","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS89289","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Yilgarn Craton","GEOLOGICAL_REGION_NAME":"Yilgarn Region","REGION_NAME_SOURCE":"Eastern Goldfields Province","STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-27.4455413913,"LONG_GDA94":121.9296886159,"ELEV_M_AHD":546,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":"1996-06-30","SAMPLE_ORIGINATOR":"Champion, D.C.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Unpublished data collected by Lance Black, including all data historically cited as \"Black et al. (2002)\". The associated AGSO-GA Record manuscript (Black, L.P., Champion, D.C., Cassidy, K.F., 2002. Compilation of SHRIMP U-Pb geochronology data, Yilgarn Craton, Western Australia, 1998-2000) was never published; however, the interpreted ages and underlying tabular data are available in their entirety from https://portal.ga.gov.au/persona/geochronology, in layers \"Geochronology - All\" and \"SHRIMP Analyses\" respectively.","AGE_PUBLICATION_LINKS":null,"AGE_ENTRY_DATE":"2017-08-31","AGE_LAST_UPDATED":"2024-02-16"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.13625","geometry":{"type":"Point","coordinates":[127.73739642,-22.83028016]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":13625,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1514156","IGSN":"10273/AU1514156","SAMPLENO":1514156,"SAMPLE_ID":"96496024","AGE_MA":1643,"AGE_MA_UNCERTAINTY":11,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":null,"NUMBER_OF_ANALYSES":1,"CALCULATION_TYPE":"single analysis","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"Z2635","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"Magmatic crystallisation (maximum estimate from single grain)","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":"Tanami Mount Webb Aurora Gold","STRATNO":15411,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU15411","STRAT_UNIT_NAME":"Pollock Hills Formation","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid volcanic rock","LITHOLOGY":"rhyodacite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"From Wyborn et al. (1998: AGSO Research Newsletter 28, 1-6): Felsic volcanics of the Pollock Hills Formation comprise black porphyritic dacite and rhyodacite overlain by sedimentary rocks (Blake and Towner, 1974: BMR Record 1974/53). Alteration is less pervasive than in the Mount Webb Granite, and two alteration types are evident: hematite and epidote. Even the least altered volcanic samples (mainly porphyritic ignimbrites with phenocrysts of plagioclase, magnetite and quartz in decreasing order of abundance) are markedly recrystallised, suggesting they are metamorphosed. The ignimbrites comprise two types: those with abundant lithic fragments and crystals (represented by SampleID 96496024), and those with a lower crystal and lithic content. Fine-grained magnetite is scattered throughout the groundmass. Primary sulphides are rare. Hematite alteration is possibly related to two events. (1) Hematite alteration is prominent at the top of the volcanics, near the contact with the sedimentary rocks. Red hematite-rich layers interspersed with the sedimentary rocks suggest oxidising conditions prevailed during sedimentation/eruption, so hematite may be related to meteoric fluids rather than hydrothermal/magmatic processes. (2) Hematite alteration affects highly sheared volcanics away from the sediment/volcanic interface. NW of Kiwirrkurra, a hematite-rich K-feldspar-altered volcanic rock associated with ironstone cuts a chlorite/sericite-altered volcanic rock. NW of Mount Webb, hematite alteration affects a sample of K-feldspar-bearing rock containing anomalously high potassium. Shearing at both sites suggests this type of hematite alteration postdates that formed at the sediment/water interface early in the paragenetic history. Late epidote-quartz alteration is common in the volcanics, and progressively destroys primary igneous textures. It resembles sodic-calcic alteration in the Mount Webb Granite, and both are focused in shear zones trending 310.","SAMPLING_FEATURE_NAME":"96496024","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS89438","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Arunta Orogen","GEOLOGICAL_REGION_NAME":"Arunta Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-22.8302801641,"LONG_GDA94":127.737396416,"ELEV_M_AHD":441,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Wyborn, L.A.I.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"44194","AGE_REF":"Wyborn, L., Hazell, M., Page, R., Idnurm, M., Sun, S-S., 1998. A newly discovered major Proterozoic granite-alteration system in the Mount Webb region, central Australia, and implications for Cu-Au mineralisation. AGSO Research Newsletter, 28, 1-6.","AGE_PUBLICATION_LINKS":"http://pid.geoscience.gov.au/dataset/ga/90499","AGE_ENTRY_DATE":"2023-05-25","AGE_LAST_UPDATED":null}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.346","geometry":{"type":"Point","coordinates":[121.10750682,-27.5019863]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":346,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1507536","IGSN":"10273/AU1507536","SAMPLENO":1507536,"SAMPLE_ID":"96969031","AGE_MA":2699.2,"AGE_MA_UNCERTAINTY":2.2,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.93,"NUMBER_OF_ANALYSES":25,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"Z2684","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"Age of magmatic crystallization of (meta-)igneous rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"The Th/U of the grains range from 0.5 to 1.1, typical values for zircon that has crystallised from a felsic melt, as would be expected. In common with their well-preserved igneous morphology, the zircon grains yield an almost perfect isotopic array. All but one of the 26 analyses plots very close to concordia, signifying that recent radiogenic Pb loss has been almost non-existent. Indeed, the average degree of concordance without the clearly discordant analysis is 100.0%. The single exception has several distinctive features. Not only is it the only analysis that is less than 95% concordant (it is actually 89% concordant), it also has the lowest U and Th/U, and distinctly higher common Pb than the other analyses. It also is the oldest of the analyses. The sum of that evidence provides a rather compelling reason for dissociating this analysis from the others. Further support is provided by the location of the analytical site. In contrast to the other analyses, it occurs in the centre of a grain (where the chances of accidentally encountering a core are increased), rather than at or near its tip. Moreover, it is located in an area of very fine cracks. The combination of those two characteristics suggests that this analysis at least partly reflects an inherited component from which the prospect of Pb loss by fluid ingress was greatly enhanced. The remaining 25 207Pb/206Pb ages yield MSWD = 0.93, signifying that no further culling is required to attain a statistically simple population.  Therefore, the weighted mean age of 2699.2 +/- 2.2 Ma (95% confidence; MSWD = 0.93, probability = 0.57) derived from those analyses is taken as the crystallisation age of the porphyry.The weighted mean 207Pb/206Pb date of 2699.2 +/- 2.2 Ma (95% confidence) is interpreted as the magmatic crystallisation age of the porphyry.","AGE_SOURCE":"Updated from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 20 September 2019","PROJECT":"Yilgarn NGMA Project","STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Mandilla Well","UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"porphyry","MODE_OF_OCCURRENCE":"dyke","SAMPLE_TYPE":"core","SAMPLE_DESC":"Moderately altered (sericite-carbonate-pyrite), grey, fine-grained, moderately feldspar-quartz porphyritic rhyolitic body, ~20 m thick and up to 1km in length, (probably intrusive) within greenstones, and within shear zone. Contains 10-20% plagioclase and quartz phenocrysts set in a very fine-grained quartzofeldspathic matrix. Quartz: occurs as phenocrysts to 2-3 mm, varies from euhedral to anhedral, exhibits embayed margins consistent with a high level of emplacement, varies from very mildly undulose to moderately and locally strongly undulose with some finer recrystallisation. Plagioclase:occurs as euhedral to subhedral phenocrysts, well twinned with no apparent zoning, locally show bent twinning and are locally fractured (though the latter may be more indicative of an extrusive origin?), alteration includes moderate to strong sericite and carbonate replacement. Quartz and plagioclase phenocrysts are set in a very fine (<0.1 mm) quartzofeldspathic matrix. Biotite is present within the matrix but it is difficult to ascertain whether it is secondary or primary. The groundmass is characterised by variable quantities of white mica (sericite and coarse muscovite, <5-10%), notably present at lowest quantities within pressure shadows around phenocrysts. The majority of the white mica is strongly aligned wrapping around phenocrysts, with coarser elongate muscovite grains aligned sub-parallel with the general alignment.  Irregular to disaggregated opaque minerals are also aligned with the general fabric. Thin (<2-3 mm) fine-grained veinlets composed of quartz (generally not undulose), white mica, carbonate and lesser biotite and opaque minerals, cut across (i.e. post-date) this fabric.","SAMPLING_FEATURE_NAME":"MDWCD11","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH621266","BOREHOLE_TOP_DEPTH_M":250,"BOREHOLE_BASE_DEPTH_M":251,"GEOLOGICAL_PROVINCE":"Yilgarn Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":"Eastern Goldfields Province","STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-27.5019863011,"LONG_GDA94":121.107506816,"ELEV_M_AHD":500,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Champion, D.C.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Unpublished data collected by Lance Black, including all data historically cited as \"Black et al. (2002)\". The associated AGSO-GA Record manuscript (Black, L.P., Champion, D.C., Cassidy, K.F., 2002. Compilation of SHRIMP U-Pb geochronology data, Yilgarn Craton, Western Australia, 1998-2000) was never published; however, the interpreted ages and underlying tabular data are available in their entirety from https://portal.ga.gov.au/persona/geochronology, in layers \"Geochronology - All\" and \"SHRIMP Analyses\" respectively.","AGE_PUBLICATION_LINKS":null,"AGE_ENTRY_DATE":"2017-08-30","AGE_LAST_UPDATED":"2024-02-16"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.181","geometry":{"type":"Point","coordinates":[133.26073382,-14.34001368]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":181,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1477620","IGSN":"10273/AU1477620","SAMPLENO":1477620,"SAMPLE_ID":"91779022","AGE_MA":1705,"AGE_MA_UNCERTAINTY":16,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.47,"NUMBER_OF_ANALYSES":7,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"U8180","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Unknown","AGE_INTERPRETED_FROM_SOURCE":"Age of magmatic crystallization of (meta-)igneous rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Data migrated from OZCHRON1. Original comment: This is the volcanic crystallisation age for this volcaniclastic unit. It is based on only 7 concordant analyses. Two others are discordant, and inherited xenocrysts (1753 Ma, 1845 Ma, 1851 Ma, 1874 Ma, 2617 Ma) are also present.","AGE_SOURCE":"Updated from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 20 September 2019","PROJECT":null,"STRATNO":19780,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU19780","STRAT_UNIT_NAME":"West Branch Volcanics","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"West Branch Volcanics","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate volcanic rock","LITHOLOGY":"agglomerate","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"hematised andesitic agglomerate, angular fragments","SAMPLING_FEATURE_NAME":"91779022","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS146361","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"McArthur Basin","GEOLOGICAL_REGION_NAME":"McArthur Region","REGION_NAME_SOURCE":null,"STATE":"NT","COUNTRY":"AUS","LAT_GDA94":-14.3400136823,"LONG_GDA94":133.2607338185,"ELEV_M_AHD":216,"ACCURACY_M":100,"LOCATION_METHOD":"1:100 000 map","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Page, R.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":null,"AGE_PUBLICATION_LINKS":null,"AGE_ENTRY_DATE":"2011-08-25","AGE_LAST_UPDATED":"2021-06-08"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.182","geometry":{"type":"Point","coordinates":[136.61180893,-12.38754957]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":182,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1477622","IGSN":"10273/AU1477622","SAMPLENO":1477622,"SAMPLE_ID":"91779006","AGE_MA":1836,"AGE_MA_UNCERTAINTY":4,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.99,"NUMBER_OF_ANALYSES":20,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"U8181","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Unknown","AGE_INTERPRETED_FROM_SOURCE":"Age of magmatic crystallization of (meta-)igneous rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Data migrated from OZCHRON1. Original comment: This is the igneous crystallisation age of the Giddy Granite, based on 20 of the 23 concordant zircon analyses. The other 3 grains (5, 20, 22) are xenocrysts with the same age of 1865 Ma.","AGE_SOURCE":"Updated from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 20 September 2019","PROJECT":null,"STRATNO":27414,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU27414","STRAT_UNIT_NAME":"Giddy Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Giddy Granite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"?hypersthene granite","SAMPLING_FEATURE_NAME":"91779006","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS146363","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Arnhem Province","GEOLOGICAL_REGION_NAME":"McArthur Region","REGION_NAME_SOURCE":null,"STATE":"NT","COUNTRY":"AUS","LAT_GDA94":-12.3875495707,"LONG_GDA94":136.6118089342,"ELEV_M_AHD":109,"ACCURACY_M":100,"LOCATION_METHOD":"1:100 000 map","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Page, R.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Unpublished data (RW Page) in Geoscience Australias OZCHRON database. Mentioned in Neumann and Fraser 2007 http://pid.geoscience.gov.au/dataset/ga/65244","AGE_PUBLICATION_LINKS":null,"AGE_ENTRY_DATE":"2011-08-25","AGE_LAST_UPDATED":"2021-06-08"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.356","geometry":{"type":"Point","coordinates":[140.65177525,-20.77158942]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":356,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1511979","IGSN":"10273/AU1511979","SAMPLENO":1511979,"SAMPLE_ID":"95208054","AGE_MA":1690,"AGE_MA_UNCERTAINTY":20,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.32,"NUMBER_OF_ANALYSES":3,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"Z2491","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Unknown","AGE_INTERPRETED_FROM_SOURCE":"Maximum depositional age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Data migrated from OZCHRON1. Original comment: Three rather discordant zircon analyses define this very imprecise and somewhat unreliable age, which may be taken as a maximum age for deposition. Other zircons in this schist reflect a provenance (source) about 1750 Ma old.","AGE_SOURCE":"Updated from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 20 September 2019","PROJECT":null,"STRATNO":12978,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU12978","STRAT_UNIT_NAME":"Mount Norna Quartzite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Mount Norna Quartzite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metasedimentary rock","LITHOLOGY":"schist","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"strongly foliated brown weathered schist","SAMPLING_FEATURE_NAME":"95208054","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS207358","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Mount Isa Orogen","GEOLOGICAL_REGION_NAME":"Mount Isa Region","REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-20.7715894204,"LONG_GDA94":140.6517752451,"ELEV_M_AHD":228,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":"Eastern Fold Belt. 18 km southeast of Cloncurry","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Page, R.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":null,"AGE_PUBLICATION_LINKS":null,"AGE_ENTRY_DATE":"2011-08-25","AGE_LAST_UPDATED":"2026-02-18"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.358","geometry":{"type":"Point","coordinates":[140.42569336,-21.18599604]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":358,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1511987","IGSN":"10273/AU1511987","SAMPLENO":1511987,"SAMPLE_ID":"95208059A","AGE_MA":1755,"AGE_MA_UNCERTAINTY":7,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.69,"NUMBER_OF_ANALYSES":11,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"Z2229","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Unknown","AGE_INTERPRETED_FROM_SOURCE":"Maximum depositional age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Data migrated from OZCHRON1. Original comment: This is a reliable crystallisation age for the clast and is based on 11 concordant data points. Five xenocrysts range in age from 1862-2531 Ma.","AGE_SOURCE":"Updated from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 20 September 2019","PROJECT":null,"STRATNO":25245,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU25245","STRAT_UNIT_NAME":"Mitakoodi Quartzite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Mitakoodi Quartzite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"medium-coarse grained siliciclastic rock","LITHOLOGY":"conglomerate","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"conglomerate above the rhyolite","SAMPLING_FEATURE_NAME":"95208059A","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS207364","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Quamby-Malbon Zone","GEOLOGICAL_REGION_NAME":"Mount Isa Region","REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-21.1859960434,"LONG_GDA94":140.4256933596,"ELEV_M_AHD":311,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":"Quamby-Malbon zone; Eastern Fold Belt","SAMPLE_ACQUISITION_DATE":"1995-06-09","SAMPLE_ORIGINATOR":"Page, R.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Unpublished data (RW Page) in Geoscience Australias OZCHRON database. Mentioned in Neumann and Fraser 2007 http://pid.geoscience.gov.au/dataset/ga/65244","AGE_PUBLICATION_LINKS":null,"AGE_ENTRY_DATE":"2011-08-25","AGE_LAST_UPDATED":"2021-06-08"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.359","geometry":{"type":"Point","coordinates":[140.42569336,-21.18599604]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":359,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1511989","IGSN":"10273/AU1511989","SAMPLENO":1511989,"SAMPLE_ID":"95208059C","AGE_MA":1749,"AGE_MA_UNCERTAINTY":11,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":1.3,"NUMBER_OF_ANALYSES":3,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"Z2229","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Unknown","AGE_INTERPRETED_FROM_SOURCE":"Maximum depositional age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Youngest detrital zircon age component","AGE_SOURCE":"Updated from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 20 September 2019","PROJECT":null,"STRATNO":25245,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU25245","STRAT_UNIT_NAME":"Mitakoodi Quartzite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Mitakoodi Quartzite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"medium-coarse grained siliciclastic rock","LITHOLOGY":"conglomerate","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"conglomerate","SAMPLING_FEATURE_NAME":"95208059C","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS207365","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Quamby-Malbon Zone","GEOLOGICAL_REGION_NAME":"Mount Isa Region","REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-21.1859960434,"LONG_GDA94":140.4256933596,"ELEV_M_AHD":311,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":"Quamby-Malbon zone; Eastern Fold Belt","SAMPLE_ACQUISITION_DATE":"1995-06-09","SAMPLE_ORIGINATOR":"Page, R.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":null,"AGE_PUBLICATION_LINKS":null,"AGE_ENTRY_DATE":"2011-08-25","AGE_LAST_UPDATED":"2026-02-18"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.361","geometry":{"type":"Point","coordinates":[140.44662924,-21.20093762]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":361,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1511991","IGSN":"10273/AU1511991","SAMPLENO":1511991,"SAMPLE_ID":"95208060","AGE_MA":1652,"AGE_MA_UNCERTAINTY":16,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.57,"NUMBER_OF_ANALYSES":13,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"Z2492","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Unknown","AGE_INTERPRETED_FROM_SOURCE":"Maximum depositional age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Data migrated from OZCHRON1. Original comment: This is strictly a maximum age for deposition of the unit as it is based on only a few grains that were found in the rock. However, the replicate analyses are uniform in 207/206, except for one older grain (202) which is about 1755 Ma old.","AGE_SOURCE":"Updated from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 20 September 2019","PROJECT":null,"STRATNO":28185,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU28185","STRAT_UNIT_NAME":"Answer Slate","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Answer Slate","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"siliciclastic sedimentary rock","LITHOLOGY":"tuffaceous mudstone","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"bedded fine-grained cherty tuff and brecciated tuff","SAMPLING_FEATURE_NAME":"95208060","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS207366","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Quamby-Malbon Zone","GEOLOGICAL_REGION_NAME":"Mount Isa Region","REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-21.2009376168,"LONG_GDA94":140.4466292392,"ELEV_M_AHD":334,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":"Quamby-Malbon zone; Eastern Fold Belt. 2 km NE of Buka Rock, and ~15 km N of Kuridala","SAMPLE_ACQUISITION_DATE":"1995-06-09","SAMPLE_ORIGINATOR":"Page, R.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Unpublished data (RW Page) in Geoscience Australias OZCHRON database. Mentioned in Neumann and Fraser 2007 http://pid.geoscience.gov.au/dataset/ga/65244","AGE_PUBLICATION_LINKS":null,"AGE_ENTRY_DATE":"2011-08-25","AGE_LAST_UPDATED":"2021-06-08"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.363","geometry":{"type":"Point","coordinates":[139.94207078,-21.2170876]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":363,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1511993","IGSN":"10273/AU1511993","SAMPLENO":1511993,"SAMPLE_ID":"95208070","AGE_MA":1756,"AGE_MA_UNCERTAINTY":3,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.76,"NUMBER_OF_ANALYSES":32,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"Z2492","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Unknown","AGE_INTERPRETED_FROM_SOURCE":"Age of magmatic crystallization of (meta-)igneous rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Data migrated from OZCHRON1. Original comment: The data are only slightly discordant, but coherent in 207/206 and thus the weighted mean age is a reliable igneous and stratigraphic age for this western limb of the unit. In excellent agreement with 80530099 (record 516).","AGE_SOURCE":"Updated from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 20 September 2019","PROJECT":null,"STRATNO":25245,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU25245","STRAT_UNIT_NAME":"Mitakoodi Quartzite","INFORMAL_UNIT_NAME":"Mitakoodi Quartzite/1a","UNIT_NAME_SOURCE":"Mitakoodi Quartzite (INFORMAL_UNIT_NAME updated in 2025 using Queensland Detailed Surface Geology WMS)","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid volcanic rock","LITHOLOGY":"rhyolite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"silicified and hematised rhyolite with strong lineation","SAMPLING_FEATURE_NAME":"95208070","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS207367","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Mount Isa Orogen","GEOLOGICAL_REGION_NAME":"Mount Isa Region","REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-21.2170876034,"LONG_GDA94":139.9420707783,"ELEV_M_AHD":381,"ACCURACY_M":100,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":"Pilgrim Fault zone; Eastern Fold Belt. On AGSO seismic line between locs 2104 and 2105","SAMPLE_ACQUISITION_DATE":"1995-06-14","SAMPLE_ORIGINATOR":"Page, R.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Unpublished data (RW Page) in Geoscience Australias OZCHRON database. Mentioned in Neumann and Fraser 2007 http://pid.geoscience.gov.au/dataset/ga/65244","AGE_PUBLICATION_LINKS":null,"AGE_ENTRY_DATE":"2011-08-25","AGE_LAST_UPDATED":"2026-02-18"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.1202","geometry":{"type":"Point","coordinates":[131.21107107,-22.20911702]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":1202,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1478420","IGSN":"10273/AU1478420","SAMPLENO":1478420,"SAMPLE_ID":"90112669","AGE_MA":1799,"AGE_MA_UNCERTAINTY":10,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":3,"NUMBER_OF_ANALYSES":12,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"U8204","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP I","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"Age of magmatic crystallization of (meta-)igneous rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Igneous crystallisation and deposition","AGE_SOURCE":"Updated from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 20 September 2019","PROJECT":null,"STRATNO":14948,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU14948","STRAT_UNIT_NAME":"Patmungala beds","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Patmalunga Beds","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid volcanic rock","LITHOLOGY":"ash tuff","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"felsic tuff","SAMPLING_FEATURE_NAME":"90112669","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS147599","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Northern Province","GEOLOGICAL_REGION_NAME":"Ngalia Region","REGION_NAME_SOURCE":null,"STATE":"NT","COUNTRY":"AUS","LAT_GDA94":-22.2091170214,"LONG_GDA94":131.2110710738,"ELEV_M_AHD":631,"ACCURACY_M":100,"LOCATION_METHOD":"1:100 000 map","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Edgoose, C.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"7821","AGE_REF":"Young, D.N., Fanning, C.M., Shaw, R.D., Edgoose, C.J., Blake, D.H., Page, R.W., Camacho, A., 1995. U-Pb zircon dating of tectonomagmatic events in the northern Arunta Inlier, central Australia. Precambrian Research, 71, 45-68.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/0301-9268(94)00055-V","AGE_ENTRY_DATE":"2011-08-25","AGE_LAST_UPDATED":"2021-06-08"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.223","geometry":{"type":"Point","coordinates":[134.1290369,-19.65540482]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":223,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1479077","IGSN":"10273/AU1479077","SAMPLENO":1479077,"SAMPLE_ID":"92-224","AGE_MA":1685,"AGE_MA_UNCERTAINTY":15,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":5.3,"NUMBER_OF_ANALYSES":2,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"U8235","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Unknown","AGE_INTERPRETED_FROM_SOURCE":"Age of magmatic crystallization of (meta-)igneous rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Data migrated from OZCHRON1. Original comment: Tentative intrusion age based on two analyses of the youngest zircon in lamprophyre intruding Warramunga Formation. Most of the zircon at about 1850-1870 Ma appears to be crustal contamination. K-Ar age of altered biotite is 1814+/-33 Ma.","AGE_SOURCE":"Updated from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 20 September 2019","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"exotic composition igneous rock","LITHOLOGY":"lamprophyre","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"Lamprophyre. Phenocrysts of biotite in matrix of K-feldspar, minor quartz. Abundant chlorite alteration. Trace chalcopyrite-pyrite-gold (possibly contamination from country rock ore deposit).","SAMPLING_FEATURE_NAME":"Explorer 50 DDH 2A","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH620867","BOREHOLE_TOP_DEPTH_M":253,"BOREHOLE_BASE_DEPTH_M":254,"GEOLOGICAL_PROVINCE":"Tennant Creek Block","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"NT","COUNTRY":"AUS","LAT_GDA94":-19.6554048236,"LONG_GDA94":134.129036901,"ELEV_M_AHD":339,"ACCURACY_M":100,"LOCATION_METHOD":"1:100 000 map","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Compston, D.M.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"1900","AGE_REF":"Compston, D.M., 1994, The geochronology of the Tennant Creek Inlier and its ore deposits, Northern Territory. Ph.D. Thesis, Australian National University, 216p.","AGE_PUBLICATION_LINKS":"https://doi.org/10.25911/5d77862d585b0","AGE_ENTRY_DATE":"2011-08-25","AGE_LAST_UPDATED":"2021-06-08"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.3650","geometry":{"type":"Point","coordinates":[148.77263874,-33.78938566]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":3650,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1479078","IGSN":"10273/AU1479078","SAMPLENO":1479078,"SAMPLE_ID":"87840055","AGE_MA":432,"AGE_MA_UNCERTAINTY":7,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.72,"NUMBER_OF_ANALYSES":33,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":"U8236","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Unknown","AGE_INTERPRETED_FROM_SOURCE":"Age of magmatic crystallization of (meta-)igneous rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Data migrated from OZCHRON1. Original comment: All 32 analyses yield a crystallisation age of 432+-7 Ma for this vitric rhyolite.","AGE_SOURCE":"Inserted from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 23 October 2019","PROJECT":"NSW - A.C.T. Mapping","STRATNO":29527,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU29527","STRAT_UNIT_NAME":"Canowindra Volcanics","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid volcanic rock","LITHOLOGY":"rhyolite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"flow banded rhyolite. Pogson & Watkins 1998 paraphrased: \"The Canowindra Volcanics comprise garnetiferous quartzo-feldspathic rhyolite and rhyodacite lavas of high-K calc-alkaline affinity together with tuff and coarse volcaniclastic sandstone. They are thought to have been extruded in a shallow water environment, which accords with the presence of limestone in enclosing sequences. These volcanics are comagmatic with the Cowra Granodiorite which intrudes them in the south. This SHRIMP dated sample is from a flow banded rhyolite collected by D. Wyborn from a quarry NE of Cowra.\"","SAMPLING_FEATURE_NAME":"87840055","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS148611","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Lachlan Orogen","GEOLOGICAL_REGION_NAME":"Lachlan Region","REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-33.7893856603,"LONG_GDA94":148.7726387393,"ELEV_M_AHD":365,"ACCURACY_M":100,"LOCATION_METHOD":"1:100 000 map","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Wyborn, D.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"23214","AGE_REF":"Pogson, D.J., Watkins, J.J., 1998. Bathurst 1:250 000 Geological Sheet SI/55-8: Explanatory Notes. Geological Survey of New South Wales, Sydney, 1v, 430p.","AGE_PUBLICATION_LINKS":"https://search.geoscience.nsw.gov.au/product/448","AGE_ENTRY_DATE":"2019-10-23","AGE_LAST_UPDATED":"2021-06-08"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.224","geometry":{"type":"Point","coordinates":[129.15968119,-19.02667748]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":224,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1479084","IGSN":"10273/AU1479084","SAMPLENO":1479084,"SAMPLE_ID":"88495008","AGE_MA":1882,"AGE_MA_UNCERTAINTY":14,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":3.3,"NUMBER_OF_ANALYSES":10,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"metamorphism","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"U8237","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Unknown","AGE_INTERPRETED_FROM_SOURCE":"Age of metamorphism","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Data migrated from OZCHRON1. Original comment: This 1882 Ma result is interpreted as an age of high-grade metamorphism and partial melting of a late Archaean gneiss terrain (supracrustal age 2510+/-22 Ma). Other data gives evidence of inheritance at 2640-2770 Ma, and 3000-3400 Ma old.","AGE_SOURCE":"Updated from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 20 September 2019","PROJECT":null,"STRATNO":30280,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU30280","STRAT_UNIT_NAME":"Browns Range Metamorphics","INFORMAL_UNIT_NAME":"unnamed gneiss, Browns Range Dome complex","UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metamorphosed acid igneous rock","LITHOLOGY":"gneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"garnetiferous gneiss","SAMPLING_FEATURE_NAME":"88495008","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS148618","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"The Granites-Tanami Block","GEOLOGICAL_REGION_NAME":"Birrindudu Region","REGION_NAME_SOURCE":null,"STATE":"NT","COUNTRY":"AUS","LAT_GDA94":-19.0266774777,"LONG_GDA94":129.1596811935,"ELEV_M_AHD":464,"ACCURACY_M":10,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":"southern Browns Range Dome","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Page, R.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":null,"AGE_PUBLICATION_LINKS":null,"AGE_ENTRY_DATE":"2011-08-25","AGE_LAST_UPDATED":"2021-06-08"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.225","geometry":{"type":"Point","coordinates":[129.15968119,-19.02667748]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":225,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1479084","IGSN":"10273/AU1479084","SAMPLENO":1479084,"SAMPLE_ID":"88495008","AGE_MA":2510,"AGE_MA_UNCERTAINTY":12,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":2.5,"NUMBER_OF_ANALYSES":4,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"U8237","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Unknown","AGE_INTERPRETED_FROM_SOURCE":"Age of magmatic crystallization of (meta-)igneous rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Data migrated from OZCHRON1. Original comment: This 1882 Ma result is interpreted as an age of high-grade metamorphism and partial melting of a late Archaean gneiss terrain (supracrustal age 2510+/-22 Ma). Other data gives evidence of inheritance at 2640-2770 Ma, and 3000-3400 Ma old.","AGE_SOURCE":"Updated from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 20 September 2019","PROJECT":null,"STRATNO":30280,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU30280","STRAT_UNIT_NAME":"Browns Range Metamorphics","INFORMAL_UNIT_NAME":"unnamed gneiss, Browns Range Dome complex","UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metamorphosed acid igneous rock","LITHOLOGY":"gneiss","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"garnetiferous gneiss","SAMPLING_FEATURE_NAME":"88495008","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS148618","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"The Granites-Tanami Block","GEOLOGICAL_REGION_NAME":"Birrindudu Region","REGION_NAME_SOURCE":null,"STATE":"NT","COUNTRY":"AUS","LAT_GDA94":-19.0266774777,"LONG_GDA94":129.1596811935,"ELEV_M_AHD":464,"ACCURACY_M":10,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":"southern Browns Range Dome","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Page, R.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":null,"AGE_PUBLICATION_LINKS":null,"AGE_ENTRY_DATE":"2011-08-25","AGE_LAST_UPDATED":"2021-06-08"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.12097","geometry":{"type":"Point","coordinates":[145.70060643,-41.59549926]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":12097,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1486337","IGSN":"10273/AU1486337","SAMPLENO":1486337,"SAMPLE_ID":"77220064","AGE_MA":487,"AGE_MA_UNCERTAINTY":45,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":40,"NUMBER_OF_ANALYSES":6,"CALCULATION_TYPE":"isochron","GEOLOGICAL_EVENT":"metamorphism","ISOTOPIC_SYSTEM":"Rb/Sr","ISOTOPIC_RATIO":"87Rb/86Sr and 87Sr/86Sr","MINERAL":"Whole rock","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"isotope dilution: two-stage column separation","ANALYTICAL_COLLECTION_SYSTEM":"unknown: unknown","LABORATORY_NAME":"Unknown","AGE_INTERPRETED_FROM_SOURCE":"Late Cambrian-Early Ordovician thermal event","OTHER_AGE_INTERPRETED_FROM_SOURCE":"partial resetting due to Devonian Tabberabberan Orogeny","AGE_REMARK_FROM_SOURCE":"Two possible interpretations proposed by authors, preferring Ordovician thermal event. Possibility that the age is instead a partial response to Devonian orogenic event. Model 2 isochron age derived from multiple samples including AGENOs 12095,12098,12096,12097,12099,12094. Initial ratio is 0.707 +/- 0.001","AGE_SOURCE":"MRT/Original Publication","PROJECT":null,"STRATNO":13057,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU13057","STRAT_UNIT_NAME":"Mount Read Volcanics","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid volcanic rock","LITHOLOGY":"acid volcanic rock","MODE_OF_OCCURRENCE":"volcanic feature","SAMPLE_TYPE":"borehole specimen","SAMPLE_DESC":"feldspar-phyric felsitic alt. lavas","SAMPLING_FEATURE_NAME":"QR16","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH136551","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Dundas Element","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"TAS","COUNTRY":"AUS","LAT_GDA94":-41.5954992584,"LONG_GDA94":145.7006064266,"ELEV_M_AHD":694,"ACCURACY_M":1000,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Black, L.P.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"39892","AGE_REF":"Adams, C.J., Black, L.P., Corbett, K.D., Green, G.R., 1985. Reconnaissance isotopic studies bearing on the tectonothermal history of Early Palaeozoic and Late Proterozoic sequences in Western Tasmania. Australian Journal of Earth Sciences, 32(1), 7-36.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120098508729309","AGE_ENTRY_DATE":"2022-03-22","AGE_LAST_UPDATED":"2022-12-09"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.235","geometry":{"type":"Point","coordinates":[140.17694194,-20.75839786]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":235,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1479162","IGSN":"10273/AU1479162","SAMPLENO":1479162,"SAMPLE_ID":"92208028","AGE_MA":1618,"AGE_MA_UNCERTAINTY":6,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.05,"NUMBER_OF_ANALYSES":17,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"maximum age of deposition","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"Z2014","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"Maximum depositional age","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Data migrated from OZCHRON1. Original comment: This U-Pb age for the detrital zircons is a maximum age for the Tommy Creek sequence. It agrees well with the 1626+/-4 Ma age for the igneous rocks in the sequence, and proves this is as young as or younger than cover sequence 3.","AGE_SOURCE":"Updated from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 20 September 2019","PROJECT":null,"STRATNO":31441,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU31441","STRAT_UNIT_NAME":"Milo beds","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Corella Formation (STRAT_UNIT_NAME updated in 2025 using Queensland Detailed Solid Geology WMS)","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid volcanic rock","LITHOLOGY":"breccia","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"calcareous feldspathic brecciated volcanic","SAMPLING_FEATURE_NAME":"92208028","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS149573","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Kalkadoon-Leichhardt Domain","GEOLOGICAL_REGION_NAME":"Mount Isa Region","REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-20.7583978601,"LONG_GDA94":140.1769419364,"ELEV_M_AHD":283,"ACCURACY_M":100,"LOCATION_METHOD":"1:100 000 map","LOCATION_DESC":"Eastern Fold Belt. Tommy Creek area","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Page, R.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"44195","AGE_REF":"Page, R.W., Sun, S-S., 1998. Aspects of geochronology and crustal evolution in the Eastern Fold Belt, Mt Isa Inlier. Australian Journal of Earth Sciences, 45(3), 343-361.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099808728396","AGE_ENTRY_DATE":"2011-08-25","AGE_LAST_UPDATED":"2026-02-18"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.13264","geometry":{"type":"Point","coordinates":[140.61182487,-20.4879524]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":13264,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1479163","IGSN":"10273/AU1479163","SAMPLENO":1479163,"SAMPLE_ID":"92208012","AGE_MA":1746,"AGE_MA_UNCERTAINTY":9,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.41,"NUMBER_OF_ANALYSES":12,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"Z1565","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP I","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"Magmatic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":4727,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU4727","STRAT_UNIT_NAME":"Corella Formation","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Corella Formation","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid volcanic rock","LITHOLOGY":"volcanic breccia","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"At Mt Fort Constantine, 30 km northeast of Cloncurry and 7 km west of the Ernest Henry Cu-Au deposit, brecciated felsic to intermediate volcanic rocks contain relict tabular feldspar and recrystallised quartz phenocrysts (Page and Sun, 1998 AJES). These rocks, which were previously assigned to the Argylla Formation, have undergone strong alteration to assemblages rich in amphibole and magnetite. Sample 92208012 was collected about 150 m northwest of sample 92208029.","SAMPLING_FEATURE_NAME":"92208012","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS149574","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Kalkadoon-Leichhardt Domain","GEOLOGICAL_REGION_NAME":"Mount Isa Region","REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-20.4879523978,"LONG_GDA94":140.6118248663,"ELEV_M_AHD":167,"ACCURACY_M":100,"LOCATION_METHOD":"1:100 000 map","LOCATION_DESC":"Eastern Fold Belt. Mount Fort Constantine, 25 km NE of Cloncurry airstrip.","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Page, R.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"44195","AGE_REF":"Page, R.W., Sun, S-S., 1998. Aspects of geochronology and crustal evolution in the Eastern Fold Belt, Mt Isa Inlier. Australian Journal of Earth Sciences, 45(3), 343-361.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099808728396","AGE_ENTRY_DATE":"2022-07-31","AGE_LAST_UPDATED":"2026-02-18"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.13263","geometry":{"type":"Point","coordinates":[140.61086821,-20.48704666]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":13263,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1479164","IGSN":"10273/AU1479164","SAMPLENO":1479164,"SAMPLE_ID":"92208029","AGE_MA":1742,"AGE_MA_UNCERTAINTY":6,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.18,"NUMBER_OF_ANALYSES":18,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"Z1513","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP I","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"Magmatic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":4727,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU4727","STRAT_UNIT_NAME":"Corella Formation","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Corella Formation","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid volcanic rock","LITHOLOGY":"volcanic breccia","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"At Mt Fort Constantine, 30 km northeast of Cloncurry and 7 km west of the Ernest Henry Cu-Au deposit, brecciated felsic to intermediate volcanic rocks contain relict tabular feldspar and recrystallised quartz phenocrysts (Page and Sun, 1998 AJES). These rocks, which were previously assigned to the Argylla Formation, have undergone strong alteration to assemblages rich in amphibole and magnetite. Sample 92208029 was collected about 150 m southeast of sample 92208012.","SAMPLING_FEATURE_NAME":"92208029","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS149575","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Kalkadoon-Leichhardt Domain","GEOLOGICAL_REGION_NAME":"Mount Isa Region","REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-20.48704666,"LONG_GDA94":140.6108682096,"ELEV_M_AHD":166,"ACCURACY_M":100,"LOCATION_METHOD":"1:100 000 map","LOCATION_DESC":"Eastern Fold Belt. Mount Fort Constantine, 25 km NE of Cloncurry airstrip.","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Page, R.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"44195","AGE_REF":"Page, R.W., Sun, S-S., 1998. Aspects of geochronology and crustal evolution in the Eastern Fold Belt, Mt Isa Inlier. Australian Journal of Earth Sciences, 45(3), 343-361.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099808728396","AGE_ENTRY_DATE":"2022-07-31","AGE_LAST_UPDATED":"2026-02-18"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.13261","geometry":{"type":"Point","coordinates":[140.8170771,-20.45666341]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":13261,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1479166","IGSN":"10273/AU1479166","SAMPLENO":1479166,"SAMPLE_ID":"92208038","AGE_MA":1528,"AGE_MA_UNCERTAINTY":6,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.19,"NUMBER_OF_ANALYSES":34,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"hydrothermal alteration","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"Z1513; Z1565","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP I","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"Hydrothermal activity","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":null,"PROJECT":null,"STRATNO":30718,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU30718","STRAT_UNIT_NAME":"Mount Margaret Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Mt Margaret granite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"The undeformed (and possibly postdeformational) Mount Margaret Granite is a very altered, chloritised granitoid which has intruded folded (but unexposed) country rocks of the Eastern Fold Belt, 16 km east of the Ernest Henry deposit. The analysed sample is an altered, quartz-poor granitoid (Page and Sun, 1998 AJES) featuring K-feldspar, amphibole and magnetite.","SAMPLING_FEATURE_NAME":"92208038","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS149582","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Naraku Batholith","GEOLOGICAL_REGION_NAME":"Carpentaria Lowlands Region","REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-20.4566634071,"LONG_GDA94":140.8170771023,"ELEV_M_AHD":150,"ACCURACY_M":100,"LOCATION_METHOD":"1:100 000 map","LOCATION_DESC":"Eastern Fold Belt. about 20 km east of Mount Fort Constantine.","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Wyborn, L.A.I.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"44195","AGE_REF":"Page, R.W., Sun, S-S., 1998. Aspects of geochronology and crustal evolution in the Eastern Fold Belt, Mt Isa Inlier. Australian Journal of Earth Sciences, 45(3), 343-361.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099808728396","AGE_ENTRY_DATE":"2022-07-31","AGE_LAST_UPDATED":"2026-02-18"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.13262","geometry":{"type":"Point","coordinates":[140.8170771,-20.45666341]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":13262,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1479166","IGSN":"10273/AU1479166","SAMPLENO":1479166,"SAMPLE_ID":"92208038","AGE_MA":1531,"AGE_MA_UNCERTAINTY":8,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.66,"NUMBER_OF_ANALYSES":19,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"Z1513; Z1565","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP I","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"Magmatic crystallisation","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Misquoted by Page & Sun (1998, AJES) as 1530 +/- 8 Ma owing to a transcription error.","AGE_SOURCE":null,"PROJECT":null,"STRATNO":30718,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU30718","STRAT_UNIT_NAME":"Mount Margaret Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Mt Margaret granite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"The undeformed (and possibly postdeformational) Mount Margaret Granite is a very altered, chloritised granitoid which has intruded folded (but unexposed) country rocks of the Eastern Fold Belt, 16 km east of the Ernest Henry deposit. The analysed sample is an altered, quartz-poor granitoid (Page and Sun, 1998 AJES) featuring K-feldspar, amphibole and magnetite.","SAMPLING_FEATURE_NAME":"92208038","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS149582","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Naraku Batholith","GEOLOGICAL_REGION_NAME":"Carpentaria Lowlands Region","REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-20.4566634071,"LONG_GDA94":140.8170771023,"ELEV_M_AHD":150,"ACCURACY_M":100,"LOCATION_METHOD":"1:100 000 map","LOCATION_DESC":"Eastern Fold Belt. about 20 km east of Mount Fort Constantine.","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Wyborn, L.A.I.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"44195","AGE_REF":"Page, R.W., Sun, S-S., 1998. Aspects of geochronology and crustal evolution in the Eastern Fold Belt, Mt Isa Inlier. Australian Journal of Earth Sciences, 45(3), 343-361.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1080/08120099808728396","AGE_ENTRY_DATE":"2022-07-31","AGE_LAST_UPDATED":"2026-02-18"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.184","geometry":{"type":"Point","coordinates":[136.58346305,-13.00874476]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":184,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1477623","IGSN":"10273/AU1477623","SAMPLENO":1477623,"SAMPLE_ID":"91779007","AGE_MA":1836,"AGE_MA_UNCERTAINTY":4,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.83,"NUMBER_OF_ANALYSES":24,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"U8182","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Unknown","AGE_INTERPRETED_FROM_SOURCE":"Age of magmatic crystallization of (meta-)igneous rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Data migrated from OZCHRON1. Original comment: This is the igneous crystallisation age of this post-tectonic granitic body. It is based on 24 concordant zircon analyses which form one coherent group (chi sq 0.77). One zircon xenocryst (grain 14) has an age of 1867 Ma, same as xens. in Giddy Gte.","AGE_SOURCE":"Updated from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 20 September 2019","PROJECT":null,"STRATNO":21356,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU21356","STRAT_UNIT_NAME":"Bukudal Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Bukudal Granite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"dark grey granite","SAMPLING_FEATURE_NAME":"91779007","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS146364","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Arnhem Province","GEOLOGICAL_REGION_NAME":"Arnhem Region","REGION_NAME_SOURCE":null,"STATE":"NT","COUNTRY":"AUS","LAT_GDA94":-13.0087447598,"LONG_GDA94":136.5834630463,"ELEV_M_AHD":6,"ACCURACY_M":100,"LOCATION_METHOD":"1:100 000 map","LOCATION_DESC":"West of Garthala?","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Page, R.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":null,"AGE_PUBLICATION_LINKS":null,"AGE_ENTRY_DATE":"2011-08-25","AGE_LAST_UPDATED":"2021-06-08"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.186","geometry":{"type":"Point","coordinates":[136.43976615,-13.1437478]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":186,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1477624","IGSN":"10273/AU1477624","SAMPLENO":1477624,"SAMPLE_ID":"91779009","AGE_MA":1837,"AGE_MA_UNCERTAINTY":4,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.5,"NUMBER_OF_ANALYSES":24,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"U8183","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Unknown","AGE_INTERPRETED_FROM_SOURCE":"Age of magmatic crystallization of (meta-)igneous rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Data migrated from OZCHRON1. Original comment: This is an igneous crystallisation age for this post-tectonic granitic body. It is based on 24 zircon analyses, concordant to sub-concordant. There is one xenocryst, 1965+/-43 Ma, and younger grains (5, 24) are discarded from the main suite.","AGE_SOURCE":"Updated from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 20 September 2019","PROJECT":null,"STRATNO":21356,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU21356","STRAT_UNIT_NAME":"Bukudal Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Bukudal Granite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"coarse even grained biotite granite, centre of Myaoola body","SAMPLING_FEATURE_NAME":"91779009","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS146367","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Arnhem Province","GEOLOGICAL_REGION_NAME":"Arnhem Region","REGION_NAME_SOURCE":null,"STATE":"NT","COUNTRY":"AUS","LAT_GDA94":-13.1437477969,"LONG_GDA94":136.4397661475,"ELEV_M_AHD":27,"ACCURACY_M":999,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Page, R.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":null,"AGE_PUBLICATION_LINKS":null,"AGE_ENTRY_DATE":"2011-08-25","AGE_LAST_UPDATED":"2021-06-08"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.188","geometry":{"type":"Point","coordinates":[136.44473485,-13.09091501]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":188,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1477625","IGSN":"10273/AU1477625","SAMPLENO":1477625,"SAMPLE_ID":"91779010","AGE_MA":1835,"AGE_MA_UNCERTAINTY":4,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.53,"NUMBER_OF_ANALYSES":21,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"U8184","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Unknown","AGE_INTERPRETED_FROM_SOURCE":"Age of magmatic crystallization of (meta-)igneous rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Data migrated from OZCHRON1. Original comment: A single coherent suite of zircon analyses defines this magmatic crystallisation age of 1835+/-4 Ma for the post-tectonic granite. The 21 analyses are concordant and the group has chi sq = 0.50. One inherited xenocryst (18-2) has an age of 1988+/-10 Ma.","AGE_SOURCE":"Updated from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 20 September 2019","PROJECT":null,"STRATNO":21356,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU21356","STRAT_UNIT_NAME":"Bukudal Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Bukudal Granite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"finer jointed biotite microgranite, northern end of Myaoola body","SAMPLING_FEATURE_NAME":"91779010","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS146368","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Arnhem Province","GEOLOGICAL_REGION_NAME":"Arnhem Region","REGION_NAME_SOURCE":null,"STATE":"NT","COUNTRY":"AUS","LAT_GDA94":-13.0909150113,"LONG_GDA94":136.4447348479,"ELEV_M_AHD":39,"ACCURACY_M":100,"LOCATION_METHOD":"1:100 000 map","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Page, R.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Unpublished data (RW Page) in Geoscience Australias OZCHRON database. Mentioned in Neumann and Fraser 2007 http://pid.geoscience.gov.au/dataset/ga/65244","AGE_PUBLICATION_LINKS":null,"AGE_ENTRY_DATE":"2011-08-25","AGE_LAST_UPDATED":"2021-06-08"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.190","geometry":{"type":"Point","coordinates":[136.74936366,-12.19054696]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":190,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1477626","IGSN":"10273/AU1477626","SAMPLENO":1477626,"SAMPLE_ID":"91779011","AGE_MA":1867,"AGE_MA_UNCERTAINTY":12,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.8,"NUMBER_OF_ANALYSES":13,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"U8185","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Unknown","AGE_INTERPRETED_FROM_SOURCE":"Age of magmatic crystallization of (meta-)igneous rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Data migrated from OZCHRON1. Original comment: This is the emplacement age of garnetiferous granite, based on 22 near-concordant analyses. Discordant younger analyses are rejected. The S-type character of this granite is demonstrated by inheritance at 1.9-2.05, 2.35, 2.54, 2.87, 3.6 Ga.","AGE_SOURCE":"Updated from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 20 September 2019","PROJECT":null,"STRATNO":2472,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU2472","STRAT_UNIT_NAME":"Bradshaw Complex","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Bradshaw Complex","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"massive garnet granite","SAMPLING_FEATURE_NAME":"91779011","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS146369","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Arnhem Province","GEOLOGICAL_REGION_NAME":"Arnhem Region","REGION_NAME_SOURCE":null,"STATE":"NT","COUNTRY":"AUS","LAT_GDA94":-12.1905469602,"LONG_GDA94":136.7493636623,"ELEV_M_AHD":19,"ACCURACY_M":100,"LOCATION_METHOD":"1:100 000 map","LOCATION_DESC":"Nhulunboy-Nabalco plant road","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Page, R.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Unpublished data (RW Page) in Geoscience Australias OZCHRON database. Mentioned in Neumann and Fraser 2007 http://pid.geoscience.gov.au/dataset/ga/65244","AGE_PUBLICATION_LINKS":null,"AGE_ENTRY_DATE":"2011-08-25","AGE_LAST_UPDATED":"2021-06-08"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.252","geometry":{"type":"Point","coordinates":[116.70366816,-30.88347146]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":252,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1480684","IGSN":"10273/AU1480684","SAMPLENO":1480684,"SAMPLE_ID":"W6","AGE_MA":2651,"AGE_MA_UNCERTAINTY":4,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.3,"NUMBER_OF_ANALYSES":10,"CALCULATION_TYPE":"upper concordia intercept","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"238U/206Pb and 207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"U8271","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Unknown","AGE_INTERPRETED_FROM_SOURCE":"Age of magmatic crystallization of (meta-)igneous rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Data migrated from OZCHRON1. source=ozchron-2011-08","AGE_SOURCE":"Updated from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 20 September 2019","PROJECT":null,"STRATNO":74292,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU74292","STRAT_UNIT_NAME":"felsic intrusives 74292","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":"pluton","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"fresh coarse grained KFS-phyric biotite granite -[informal_name: Wongan Hills Greenstone Belt]-","SAMPLING_FEATURE_NAME":"W6","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS161572","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Murchison Province","GEOLOGICAL_REGION_NAME":"Yilgarn Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-30.8834714585,"LONG_GDA94":116.7036681616,"ELEV_M_AHD":280,"ACCURACY_M":100,"LOCATION_METHOD":"1:100 000 map","LOCATION_DESC":"Wongan Hills Greenstone Belt. within town of Wongan Hills.","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Pidgeon, R.T.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":null,"AGE_PUBLICATION_LINKS":null,"AGE_ENTRY_DATE":"2011-08-25","AGE_LAST_UPDATED":"2020-11-02"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.253","geometry":{"type":"Point","coordinates":[135.60126286,-16.01090545]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":253,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1480803","IGSN":"10273/AU1480803","SAMPLENO":1480803,"SAMPLE_ID":"2773","AGE_MA":1851,"AGE_MA_UNCERTAINTY":7,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.86,"NUMBER_OF_ANALYSES":14,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"U8272","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Unknown","AGE_INTERPRETED_FROM_SOURCE":"Age of magmatic crystallization of (meta-)igneous rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Data migrated from OZCHRON1. Original comment: This is the igneous crystallisation age of the Scrutton Volcanics, and is therefore a good stratigraphic age. It is based on 14 concordant data points from SHRIMP zircon analyses.","AGE_SOURCE":"Updated from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 20 September 2019","PROJECT":null,"STRATNO":16698,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU16698","STRAT_UNIT_NAME":"Scrutton Volcanics","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Scrutton Volcanics","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid volcanic rock","LITHOLOGY":"ignimbrite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"rhyodacitic ignimbrite - coarse porphyritic, flow-banded.","SAMPLING_FEATURE_NAME":"2773","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS161650","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"McArthur Basin","GEOLOGICAL_REGION_NAME":"McArthur Region","REGION_NAME_SOURCE":null,"STATE":"NT","COUNTRY":"AUS","LAT_GDA94":-16.0109054507,"LONG_GDA94":135.6012628599,"ELEV_M_AHD":128,"ACCURACY_M":100,"LOCATION_METHOD":"1:100 000 map","LOCATION_DESC":"Bauhinia Downs","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Page, R.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"23398","AGE_REF":"Page, R.W., Jackson, M.J., Krassay, A.A., 2000. Constraining sequence stratigraphy in north Australian basins: SHRIMP U-Pb zircon geochronology between Mt Isa and McArthur River. Australian Journal of Earth Sciences, 47(3), 431-459.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1046/j.1440-0952.2000.00797.x","AGE_ENTRY_DATE":"2011-08-25","AGE_LAST_UPDATED":"2021-06-08"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.201","geometry":{"type":"Point","coordinates":[128.58233948,-26.17761607]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":201,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1478434","IGSN":"10273/AU1478434","SAMPLENO":1478434,"SAMPLE_ID":"91988005","AGE_MA":1078,"AGE_MA_UNCERTAINTY":5,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":2.8,"NUMBER_OF_ANALYSES":36,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"U8205","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Unknown","AGE_INTERPRETED_FROM_SOURCE":"Age of magmatic crystallization of (meta-)igneous rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Data migrated from OZCHRON1. Original comment: 'Zircons in this these felsic volcanics of the Tollu Group are squat, euhedral to subhedral, generally simply zoned. The age is based on 35 data points in a single population, and is interpreted as the age of igneous eruption.' source=ozchron-2011-08","AGE_SOURCE":"Updated from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 20 September 2019","PROJECT":null,"STRATNO":17012,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU17012","STRAT_UNIT_NAME":"Smoke Hill Volcanics","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Smoke Hill Volcanics","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid volcanic rock","LITHOLOGY":"rhyolite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"rhyolite","SAMPLING_FEATURE_NAME":"91988005","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS147614","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Musgrave Block","GEOLOGICAL_REGION_NAME":"Musgrave Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-26.1776160688,"LONG_GDA94":128.5823394818,"ELEV_M_AHD":523,"ACCURACY_M":100,"LOCATION_METHOD":"1:100 000 map","LOCATION_DESC":"Blackstone region. West of Bell Rock Range","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Sheraton, J.W.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"43609","AGE_REF":"Sun, S.S., Sheraton, J.W., Glikson, A.Y., Stewart, A.J., 1996. A major magmatic event during 1050-1080 Ma in central Australia, and an emplacement age for the Giles Complex. AGSO Research Newsletter, 24, 13-15.","AGE_PUBLICATION_LINKS":"https://pid.geoscience.gov.au/dataset/ga/90462","AGE_ENTRY_DATE":"2011-08-25","AGE_LAST_UPDATED":"2020-11-02"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.202","geometry":{"type":"Point","coordinates":[128.73433689,-26.05661419]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":202,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1478472","IGSN":"10273/AU1478472","SAMPLENO":1478472,"SAMPLE_ID":"91988053","AGE_MA":1073,"AGE_MA_UNCERTAINTY":5,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.41,"NUMBER_OF_ANALYSES":6,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"U8206","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Unknown","AGE_INTERPRETED_FROM_SOURCE":"Age of magmatic crystallization of (meta-)igneous rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Data migrated from OZCHRON1. Original comment: 'This sample is either a chilled phase of Hinckley Range gabbronorite or a type A dyke. The anhedral zircons have igneous zonation, and this magmatic crystallisation age is based on 6 grains only. Age consistent with best age of Giles Complex (1078+/-3 Ma)' source=ozchron-2011-08","AGE_SOURCE":"Updated from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 20 September 2019","PROJECT":null,"STRATNO":8376,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU8376","STRAT_UNIT_NAME":"Hinckley Range Gabbro","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Hinckley Range Gabbro","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"metamorphosed basic igneous rock","LITHOLOGY":"granulite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"recrystallised BT gabbronorite (BT-CPX-OPX-PL granulite)","SAMPLING_FEATURE_NAME":"91988053","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS147663","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Musgrave Block","GEOLOGICAL_REGION_NAME":"Musgrave Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-26.0566141872,"LONG_GDA94":128.7343368942,"ELEV_M_AHD":609,"ACCURACY_M":100,"LOCATION_METHOD":"1:100 000 map","LOCATION_DESC":"Tomkinson Ranges. West Hinckley Range","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Sheraton, J.W.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":null,"AGE_PUBLICATION_LINKS":null,"AGE_ENTRY_DATE":"2011-08-25","AGE_LAST_UPDATED":"2020-11-02"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.203","geometry":{"type":"Point","coordinates":[128.74033704,-26.0736142]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":203,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1478477","IGSN":"10273/AU1478477","SAMPLENO":1478477,"SAMPLE_ID":"91988059","AGE_MA":1052,"AGE_MA_UNCERTAINTY":11,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.98,"NUMBER_OF_ANALYSES":19,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"U8207","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Unknown","AGE_INTERPRETED_FROM_SOURCE":"Age of magmatic crystallization of (meta-)igneous rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Data migrated from OZCHRON1. Original comment: 'The igneous zircons are squat, most with rounded prisms, igneous zoning and inclusions. The age is based on 18 near-concordant data points.' source=ozchron-2011-08","AGE_SOURCE":"Updated from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 20 September 2019","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"unnamed granite dyke","UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":"dyke","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"porphyritic HBL-BT granite dyke","SAMPLING_FEATURE_NAME":"91988059","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS147669","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Musgrave Block","GEOLOGICAL_REGION_NAME":"Musgrave Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-26.073614197,"LONG_GDA94":128.7403370393,"ELEV_M_AHD":676,"ACCURACY_M":100,"LOCATION_METHOD":"1:100 000 map","LOCATION_DESC":"Tomkinson Ranges. West Hinckley Range","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Sheraton, J.W.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":null,"AGE_PUBLICATION_LINKS":null,"AGE_ENTRY_DATE":"2011-08-25","AGE_LAST_UPDATED":"2020-11-02"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.204","geometry":{"type":"Point","coordinates":[128.88733665,-26.1426131]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":204,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1478481","IGSN":"10273/AU1478481","SAMPLENO":1478481,"SAMPLE_ID":"91988064","AGE_MA":1068,"AGE_MA_UNCERTAINTY":6,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.2,"NUMBER_OF_ANALYSES":32,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"U8208","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Unknown","AGE_INTERPRETED_FROM_SOURCE":"Age of magmatic crystallization of (meta-)igneous rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Data migrated from OZCHRON1. Original comment: 'This felsic dyke in the Hinckley intrusion contains zircon that is mostly clear and euhedral with variable igneous zoning. The concordant age is based on 32 data points and is considered the age of igneous crystallisation.' source=ozchron-2011-08","AGE_SOURCE":"Updated from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 20 September 2019","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"unnamed granite dyke","UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":"dyke","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"porphyritic CPX-BT granite (rapakivi)","SAMPLING_FEATURE_NAME":"91988064","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS147676","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Musgrave Block","GEOLOGICAL_REGION_NAME":"Musgrave Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-26.1426130989,"LONG_GDA94":128.8873366451,"ELEV_M_AHD":654,"ACCURACY_M":100,"LOCATION_METHOD":"1:100 000 map","LOCATION_DESC":"Tomkinson Ranges. Western Champ-de-Mars","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Sheraton, J.W.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":null,"AGE_PUBLICATION_LINKS":null,"AGE_ENTRY_DATE":"2011-08-25","AGE_LAST_UPDATED":"2020-11-02"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.205","geometry":{"type":"Point","coordinates":[128.92533648,-26.15461279]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":205,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1478487","IGSN":"10273/AU1478487","SAMPLENO":1478487,"SAMPLE_ID":"91988071","AGE_MA":1188,"AGE_MA_UNCERTAINTY":4,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.9,"NUMBER_OF_ANALYSES":33,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"U8209","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Unknown","AGE_INTERPRETED_FROM_SOURCE":"Age of magmatic crystallization of (meta-)igneous rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Data migrated from OZCHRON1. Original comment: 'This age is based on 33 sub-concordant data points and is the igneous age of the granite. This intrusion is therefore older than the Hinckley Range gabbronorite (~1073 Ma). Minor inheritance at 1300 (protolith age?) and 1500 Ma is indicated.' source=ozchron-2011-08","AGE_SOURCE":"Updated from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 20 September 2019","PROJECT":null,"STRATNO":74400,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU74400","STRAT_UNIT_NAME":"gneiss, granite 74400","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"porphyritic granite","SAMPLING_FEATURE_NAME":"91988071","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS147683","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Musgrave Block","GEOLOGICAL_REGION_NAME":"Musgrave Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-26.1546127922,"LONG_GDA94":128.9253364755,"ELEV_M_AHD":655,"ACCURACY_M":100,"LOCATION_METHOD":"1:100 000 map","LOCATION_DESC":"Tomkinson Ranges. Western Champ-de-Mars","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Sheraton, J.W.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":null,"AGE_PUBLICATION_LINKS":null,"AGE_ENTRY_DATE":"2011-08-25","AGE_LAST_UPDATED":"2020-11-02"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.1214","geometry":{"type":"Point","coordinates":[132.4421101,-23.40024183]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":1214,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1484137","IGSN":"10273/AU1484137","SAMPLENO":1484137,"SAMPLE_ID":"84091689","AGE_MA":1137,"AGE_MA_UNCERTAINTY":8,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":6,"CALCULATION_TYPE":"not captured","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"isotope dilution: two-stage column separation","ANALYTICAL_COLLECTION_SYSTEM":"TIMS: unknown model","LABORATORY_NAME":null,"AGE_INTERPRETED_FROM_SOURCE":"igneous crystallisation age (pegmatite)","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Composite age calculation from zircon and monazite fractions. TIMS age matches earlier Rb/Sr age.","AGE_SOURCE":"McLennan Compilation, 2015","PROJECT":null,"STRATNO":29770,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU29770","STRAT_UNIT_NAME":"Teapot Granite Complex","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"pegmatite (Ormiston)","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"pegmatite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"S RDZ","SAMPLING_FEATURE_NAME":"84091689","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS142557","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Southern Province","GEOLOGICAL_REGION_NAME":"Arunta Region","REGION_NAME_SOURCE":null,"STATE":"NT","COUNTRY":"AUS","LAT_GDA94":-23.4002418284,"LONG_GDA94":132.4421100979,"ELEV_M_AHD":925,"ACCURACY_M":100,"LOCATION_METHOD":"1:100 000 map","LOCATION_DESC":"Ormiston area","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Shaw, R.D.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"42830","AGE_REF":"Black, L.P., Shaw, R.D., 1992. U-Pb zircon chronology of prograde Proterozoic events in the Central and Southern Provinces of the Arunta Block, central Australia. 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Original comment: 33 of 35 analyses yield a crystallisation age of 414+-4 Ma for this rhyolite.","AGE_SOURCE":"Inserted from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 23 October 2019","PROJECT":"Lachlan NGMA Project","STRATNO":7672,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU7672","STRAT_UNIT_NAME":"Grampians Group","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Grampians Group","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid volcanic rock","LITHOLOGY":"rhyolite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"massive rhyolite","SAMPLING_FEATURE_NAME":"93843046","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS171661","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Grampians-Stavely Zone,Lachlan Orogen","GEOLOGICAL_REGION_NAME":"Lachlan Region","REGION_NAME_SOURCE":"Grampians-Stavely","STATE":"VIC","COUNTRY":"AUS","LAT_GDA94":-37.5905561416,"LONG_GDA94":142.7395843165,"ELEV_M_AHD":246,"ACCURACY_M":25,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":"Willaura. 100 m S of Stapylton rd. junction with Willaura-Wickcliffe Rd.","SAMPLE_ACQUISITION_DATE":"1993-03-29","SAMPLE_ORIGINATOR":"Stuart-Smith, P.G.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"23402","AGE_REF":"Stuart-Smith, P.G., Black, L.P., 1999. Willaura, Sheet 7422, Victoria, 1:100 000 Map Geological Report. 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Wyborn from a 'weathered tuff band' (Pogson and Watkins, 1998) in the Molong Limestone at Molong Quarry, approximately 2 km W of Molong. Zircon from this sample was previously analysed by SHRIMP, using the now superseded zircon standard SL13, and an age of 420 +/- 8 Ma (p. 127 in Pogson and Watkins, 1998) or  423 +/- 0 Ma (in Table A2.1 in Pogson and Watkins, 1998) was reported. The new analyses reported here were aimed at providing a more precise age constraint on the eruption age of this tuff, and on the sedimentation age of the host Molong Limestone, which contains the index conodont Polygnathoides siluricus.","SAMPLING_FEATURE_NAME":"92849002","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS186576","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Eastern Province","GEOLOGICAL_REGION_NAME":"Lachlan Region","REGION_NAME_SOURCE":null,"STATE":"NSW","COUNTRY":"AUS","LAT_GDA94":-33.0907790292,"LONG_GDA94":148.8457970415,"ELEV_M_AHD":568,"ACCURACY_M":100,"LOCATION_METHOD":"1:25 000 map","LOCATION_DESC":"Weathered tuff band at Molong Quarry in Molong Limestone.","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Wyborn, D.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"69635","AGE_REF":"Fraser, G.L., Gilmore, P.J., Fitzherbert, J.A., Trigg, S.J., Campbell, L.M., Deyssing, L., Thomas, O.D., Burton, G.R., Greenfield, J.E., Blevin, P.L., Simpson, C.J., 2014. 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Geochronology Record 1381: Geological Survey of Western Australia, 4p.","AGE_PUBLICATION_LINKS":"http://geodownloads.dmp.wa.gov.au/downloads/Geochron/pdfs/95392.1.pdf","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2020-11-16"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.6915","geometry":{"type":"Point","coordinates":[124.30260326,-16.62336434]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":6915,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1488168","IGSN":"10273/AU1488168","SAMPLENO":1488168,"SAMPLE_ID":"95416","AGE_MA":1865,"AGE_MA_UNCERTAINTY":6,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":0.62,"NUMBER_OF_ANALYSES":12,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP II","LABORATORY_NAME":"Curtin University","AGE_INTERPRETED_FROM_SOURCE":"age of igneous crystallization","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSWA","PROJECT":null,"STRATNO":16723,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU16723","STRAT_UNIT_NAME":"Secure Bay Monzogranite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Secure Bay Monzogranite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"monzogranite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"monzogranite","SAMPLING_FEATURE_NAME":"95416","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS146715","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"King Leopold Orogen","GEOLOGICAL_REGION_NAME":"King Leopold Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-16.6233643361,"LONG_GDA94":124.3026032618,"ELEV_M_AHD":73,"ACCURACY_M":100,"LOCATION_METHOD":"1:100 000 map","LOCATION_DESC":"W Mt Disa.                      \r","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Griffin, T.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Lu, Y, Wingate, MTD, Kirkland, CL and Griffin, TJ 2017, 95416: biotite monzogranite, Mount Disaster; 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Geochronology Record 1385: Geological Survey of Western Australia, 4p.","AGE_PUBLICATION_LINKS":"http://geodownloads.dmp.wa.gov.au/downloads/Geochron/pdfs/95464.1.pdf","AGE_ENTRY_DATE":"2020-10-23","AGE_LAST_UPDATED":"2020-11-16"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.282","geometry":{"type":"Point","coordinates":[128.91533653,-26.15261288]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":282,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1488329","IGSN":"10273/AU1488329","SAMPLENO":1488329,"SAMPLE_ID":"91988083","AGE_MA":1176,"AGE_MA_UNCERTAINTY":6,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":3.3,"NUMBER_OF_ANALYSES":28,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"U8317","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Unknown","AGE_INTERPRETED_FROM_SOURCE":"Age of magmatic crystallization of (meta-)igneous rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Data migrated from OZCHRON1. Original comment: 'This age is based on 28 data points of mostly clear, anhedral zircons and simple zoned igneous grains. It is interpreted as the igneous crystallisation age of the biotite-rich leucogabbro body. which is significantly older than that of the Giles Complex.' source=ozchron-2011-08","AGE_SOURCE":"Updated from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 20 September 2019","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"unnamed gabbro","UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"basic intrusive rock","LITHOLOGY":"gabbro","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"OPX-CPX-BT gabbro","SAMPLING_FEATURE_NAME":"91988083","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS147695","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Musgrave Block","GEOLOGICAL_REGION_NAME":"Musgrave Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-26.1526128774,"LONG_GDA94":128.9153365334,"ELEV_M_AHD":647,"ACCURACY_M":100,"LOCATION_METHOD":"1:100 000 map","LOCATION_DESC":"Tomkinson Ranges. Western Champ-de-Mars","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Sheraton, J.W.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":null,"AGE_PUBLICATION_LINKS":null,"AGE_ENTRY_DATE":"2011-08-25","AGE_LAST_UPDATED":"2020-11-02"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15557","geometry":{"type":"Point","coordinates":[137.05809356,-30.64288155]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15557,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1488358","IGSN":"10273/AU1488358","SAMPLENO":1488358,"SAMPLE_ID":"9373","AGE_MA":1598,"AGE_MA_UNCERTAINTY":2.3,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":null,"CALCULATION_TYPE":"upper concordia intercept","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Titanite","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"isotope dilution: ion exchange chromatography","ANALYTICAL_COLLECTION_SYSTEM":"TIMS: MSZ mass spectrometer","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation, intrusive","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":84395,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU84395","STRAT_UNIT_NAME":"Wirrda Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Wirrda Suite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate intrusive rock","LITHOLOGY":"quartz monzonite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"borehole specimen","SAMPLE_DESC":"[Quartz monzonite] Creaser & Cooper 1993 (EcGeol 88): The sample is a quartz monzonite from the Wirrida Suite.  Titanite from this sample occurred as orange to honey-coloured crystals up to 6mm in size. The titanite has magmatic zonation and is interpreted to be a late-crystallising igneous mineral. Creaser 1989 (LaTrobe thesis): This sample is a medium- to coarse-grained quartz monzonite which is 16.1% mafic minerals with augite, hornblende, biotite, magnetite and ilmenite.","SAMPLING_FEATURE_NAME":"WMC/WRD-6","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH147865","BOREHOLE_TOP_DEPTH_M":682.8,"BOREHOLE_BASE_DEPTH_M":684.7,"GEOLOGICAL_PROVINCE":"Stuart Shelf,Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-30.6428815505,"LONG_GDA94":137.0580935566,"ELEV_M_AHD":111,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Creaser, R.A.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"24261","AGE_REF":"Johnson, J.P., Cross, K.C., 1995. U-Pb geochronological constraints on the genesis of the Olympic Dam Cu-U-Au-Ag deposit, South Australia. Economic Geology, 90(5), 1046-1063.","AGE_PUBLICATION_LINKS":"https://doi.org/10.2113/gsecongeo.90.5.1046","AGE_ENTRY_DATE":"2025-11-18","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15437","geometry":{"type":"Point","coordinates":[136.9015758,-30.4496708]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15437,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1488467","IGSN":"10273/AU1488467","SAMPLENO":1488467,"SAMPLE_ID":"RX3223","AGE_MA":1584,"AGE_MA_UNCERTAINTY":20,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":13,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP I","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation, intrusive","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"acid intrusive rock","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"470m below surface","SAMPLING_FEATURE_NAME":"RD647","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH40145","BOREHOLE_TOP_DEPTH_M":474,"BOREHOLE_BASE_DEPTH_M":478,"GEOLOGICAL_PROVINCE":"Stuart Shelf","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-30.4496708,"LONG_GDA94":136.9015758,"ELEV_M_AHD":100,"ACCURACY_M":2,"LOCATION_METHOD":"company supplied location, method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Johnson, J.P.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"74362","AGE_REF":"Holm, O., 2004. New geochronology of the Mount Woods Inlier and Central Gawler Gold Province [accompanying slides]. IN: Gawler Craton 2004: State of Play, Adelaide, 4-6 August 2004. Geological Survey of South Australia. Report Book, 2004/00018, 3.","AGE_PUBLICATION_LINKS":"https://pid.sarig.sa.gov.au/document/2019d081296","AGE_ENTRY_DATE":"2025-11-18","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.254","geometry":{"type":"Point","coordinates":[143.16255561,-13.76722519]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":254,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1480821","IGSN":"10273/AU1480821","SAMPLENO":1480821,"SAMPLE_ID":"89837509","AGE_MA":408,"AGE_MA_UNCERTAINTY":6,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.5,"NUMBER_OF_ANALYSES":32,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":"U8273","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Unknown","AGE_INTERPRETED_FROM_SOURCE":"Age of magmatic crystallization of (meta-)igneous rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Data migrated from OZCHRON1. Original comment: Lankelly Granite - After deletion of three ~1600 Ma grains(5,32,36)and grain 65(which is 70Ma older than main population), 33 grains yield an age of 408+-6Ma for the magmatic crystallisation of this granite.","AGE_SOURCE":"Updated from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 20 September 2019","PROJECT":null,"STRATNO":25726,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU25726","STRAT_UNIT_NAME":"Lankelly Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Lankelly Granite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"biotite granite","SAMPLING_FEATURE_NAME":"89837509","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS161663","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Cape York - Oriomo Province","GEOLOGICAL_REGION_NAME":"Coen Region","REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-13.7672251947,"LONG_GDA94":143.1625556051,"ELEV_M_AHD":242,"ACCURACY_M":100,"LOCATION_METHOD":"1:100 000 map","LOCATION_DESC":"Coen Inlier, North Queensland","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Bultitude, R.J.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"43725","AGE_REF":"Black, L.P., Bultitude, R.J., Sun, S-S., Knutson, J., Blewett, R.S., 1992. U-Pb analytical results for granitic rocks from the Coen Inlier, North Queensland. BMR Record, 1992/64, 20p.","AGE_PUBLICATION_LINKS":"http://pid.geoscience.gov.au/dataset/ga/14572","AGE_ENTRY_DATE":"2011-08-25","AGE_LAST_UPDATED":"2021-06-08"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.1212","geometry":{"type":"Point","coordinates":[133.86094592,-23.64900756]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":1212,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1481164","IGSN":"10273/AU1481164","SAMPLENO":1481164,"SAMPLE_ID":"89-525","AGE_MA":1752,"AGE_MA_UNCERTAINTY":11,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":3.2,"NUMBER_OF_ANALYSES":15,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"U8274","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP I","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"Age of magmatic crystallization of (meta-)igneous rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Data migrated from OZCHRON1. Original comment: This is the age of the main magmatic zircon group, and is the age of the Alice Springs Granite. Inherited grains up to 2600 Ma also present.","AGE_SOURCE":"Updated from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 20 September 2019","PROJECT":null,"STRATNO":27281,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU27281","STRAT_UNIT_NAME":"Alice Springs Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Alice Springs Granite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"trondhjemite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"White muscovite-biotite trondhjemite","SAMPLING_FEATURE_NAME":"89-525","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS161935","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Southern Province","GEOLOGICAL_REGION_NAME":"Arunta Region","REGION_NAME_SOURCE":null,"STATE":"NT","COUNTRY":"AUS","LAT_GDA94":-23.6490075584,"LONG_GDA94":133.8609459223,"ELEV_M_AHD":654,"ACCURACY_M":100,"LOCATION_METHOD":"1:100 000 map","LOCATION_DESC":"Locality 1","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Zhao, J.X.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"69925","AGE_REF":"Zhao Jian-Xin, Bennett, V.C., 1995. SHRIMP U-Pb zircon geochronology of granites in the Arunta Inlier, central Australia: implications for Proterozoic crustal evolution. Precambrian Research, 71, 17-43.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/0301-9268(94)00054-U","AGE_ENTRY_DATE":"2011-08-25","AGE_LAST_UPDATED":"2021-06-08"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.1213","geometry":{"type":"Point","coordinates":[134.95624477,-22.5535541]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":1213,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1481166","IGSN":"10273/AU1481166","SAMPLENO":1481166,"SAMPLE_ID":"89-551","AGE_MA":1713,"AGE_MA_UNCERTAINTY":7,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":2.4,"NUMBER_OF_ANALYSES":13,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"U8275","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP I","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"Age of magmatic crystallization of (meta-)igneous rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Data migrated from OZCHRON1. Original comment: This is a convincing magmatic crystallisation age of 1713+/-7 Ma, given by 13 zircon analytical data points.","AGE_SOURCE":"Updated from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 20 September 2019","PROJECT":null,"STRATNO":13125,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU13125","STRAT_UNIT_NAME":"Mount Swan Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Mount Swan Granite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"porphyry","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"Pink,porphyritic to megacrystic to 100mm.","SAMPLING_FEATURE_NAME":"89-551","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS161936","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Northern Province","GEOLOGICAL_REGION_NAME":"Arunta Region","REGION_NAME_SOURCE":null,"STATE":"NT","COUNTRY":"AUS","LAT_GDA94":-22.5535540997,"LONG_GDA94":134.9562447725,"ELEV_M_AHD":532,"ACCURACY_M":100,"LOCATION_METHOD":"1:100 000 map","LOCATION_DESC":"Locality 10","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Zhao, J.X.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"69925","AGE_REF":"Zhao Jian-Xin, Bennett, V.C., 1995. SHRIMP U-Pb zircon geochronology of granites in the Arunta Inlier, central Australia: implications for Proterozoic crustal evolution. Precambrian Research, 71, 17-43.","AGE_PUBLICATION_LINKS":"https://doi.org/10.1016/0301-9268(94)00054-U","AGE_ENTRY_DATE":"2011-08-25","AGE_LAST_UPDATED":"2021-06-08"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.293","geometry":{"type":"Point","coordinates":[120.56735838,-28.15652019]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":293,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1491507","IGSN":"10273/AU1491507","SAMPLENO":1491507,"SAMPLE_ID":"92969082","AGE_MA":2665,"AGE_MA_UNCERTAINTY":5,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":1.2,"NUMBER_OF_ANALYSES":13,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":"Z1836","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP I","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"Age of magmatic crystallization of (meta-)igneous rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Thirty-five analyses were collected. Seventeen discordant (>10%) analyses were excluded from further consideration. Of the remaining 18 analyses, one represents pre-2800 Ma inheritance. Thirteen (spanning the 207Pb/206Pb range 2675-2647 Ma) are equivalent within their analytical uncertainties, and yield a weighted mean 207Pb/206Pb date of 2665 +/- 5 Ma (95% confidence; MSWD = 1.2, probability = 0.26). This is interpreted as the magmatic crystallisation age of the granite. The remaining four analyses are dispersed (with 207Pb/206Pb dates spanning the range 2627-2395 Ma), and are interpreted to have been affected by ancient loss of radiogenic Pb.The weighted mean 207Pb/206Pb date of 2665 +/- 5 Ma (95% confidence) is interpreted as the magmatic crystallisation age of the granite.","AGE_SOURCE":"Updated from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 20 September 2019","PROJECT":"Yilgarn NGMA Project","STRATNO":74297,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU74297","STRAT_UNIT_NAME":"low-Ca granite 74297","INFORMAL_UNIT_NAME":"Table Well granite","UNIT_NAME_SOURCE":"low-Ca granite 74297","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"granite","MODE_OF_OCCURRENCE":"pluton","SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"This sample was collected from a pavement about 1 km SW of Table Well. It is a grey, fine- to medium-grained, undeformed, sparsely to moderately feldspar-quartz porphyritic biotite granite.","SAMPLING_FEATURE_NAME":"92969082","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS166972","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Yilgarn Craton","GEOLOGICAL_REGION_NAME":"Yilgarn Region","REGION_NAME_SOURCE":null,"STATE":"WA","COUNTRY":"AUS","LAT_GDA94":-28.1565201882,"LONG_GDA94":120.5673583753,"ELEV_M_AHD":467,"ACCURACY_M":10,"LOCATION_METHOD":"GPS observation","LOCATION_DESC":"1 km SW of Table Well","SAMPLE_ACQUISITION_DATE":"1992-08-06","SAMPLE_ORIGINATOR":"Champion, D.C.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":"Unpublished data collected by Lance Black, including all data historically cited as \"Black et al. (2002)\". The associated AGSO-GA Record manuscript (Black, L.P., Champion, D.C., Cassidy, K.F., 2002. Compilation of SHRIMP U-Pb geochronology data, Yilgarn Craton, Western Australia, 1998-2000) was never published; however, the interpreted ages and underlying tabular data are available in their entirety from https://portal.ga.gov.au/persona/geochronology, in layers \"Geochronology - All\" and \"SHRIMP Analyses\" respectively.","AGE_PUBLICATION_LINKS":null,"AGE_ENTRY_DATE":"2017-08-27","AGE_LAST_UPDATED":"2024-02-16"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.263","geometry":{"type":"Point","coordinates":[147.14590534,-20.51178023]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":263,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1484203","IGSN":"10273/AU1484203","SAMPLENO":1484203,"SAMPLE_ID":"89503064","AGE_MA":357,"AGE_MA_UNCERTAINTY":10,"AGE_CONFIDENCE_LEVEL":"2 standard deviation","AGE_MSWD":null,"NUMBER_OF_ANALYSES":2,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":"U8292","ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP unknown model","LABORATORY_NAME":"Unknown","AGE_INTERPRETED_FROM_SOURCE":"Age of magmatic crystallization of (meta-)igneous rock","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":"Data migrated from OZCHRON1. Original comment: Only 4 zircon grains were recovered from this altered dacitic to andesitic ignimbrite from the Stones Creek Volcanics. Two crystallised at about 1550 Ma. The other 2 crystallised at about 357 Ma, which is consistent with the inferred age.","AGE_SOURCE":"Updated from Geochron Delivery (Geoscience Australia; http://www.ga.gov.au/geochron-sapub-web/), 20 September 2019","PROJECT":null,"STRATNO":22897,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU22897","STRAT_UNIT_NAME":"Stones Creek Volcanics","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Stones Creek Volcanics","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate volcanic rock","LITHOLOGY":"andesite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"outcrop specimen","SAMPLE_DESC":"extremely altered (propylitic) porphyritic andesite","SAMPLING_FEATURE_NAME":"89503064","SAMPLING_FEATURE_TYPE":"FIELD SITE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/FS143282","BOREHOLE_TOP_DEPTH_M":null,"BOREHOLE_BASE_DEPTH_M":null,"GEOLOGICAL_PROVINCE":"Drummond Basin","GEOLOGICAL_REGION_NAME":"Charters Towers Region","REGION_NAME_SOURCE":null,"STATE":"QLD","COUNTRY":"AUS","LAT_GDA94":-20.5117802265,"LONG_GDA94":147.1459053408,"ELEV_M_AHD":149,"ACCURACY_M":100,"LOCATION_METHOD":"1:100 000 map","LOCATION_DESC":"Drummond Basin. 6.2 km NNE of \"Glenroy\" outstation","SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"MacKenzie, D.E.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":null,"AGE_REF":null,"AGE_PUBLICATION_LINKS":null,"AGE_ENTRY_DATE":"2011-08-25","AGE_LAST_UPDATED":"2026-02-18"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15445","geometry":{"type":"Point","coordinates":[137.007513,-30.51737711]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15445,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1484627","IGSN":"10273/AU1484627","SAMPLENO":1484627,"SAMPLE_ID":"9287","AGE_MA":1590,"AGE_MA_UNCERTAINTY":5,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":9.3,"NUMBER_OF_ANALYSES":6,"CALCULATION_TYPE":"upper concordia intercept","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"isotope dilution: ion exchange chromatography","ANALYTICAL_COLLECTION_SYSTEM":"TIMS: MSZ mass spectrometer","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation, intrusive","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":84395,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU84395","STRAT_UNIT_NAME":"Wirrda Granite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"Wirrda Suite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate intrusive rock","LITHOLOGY":"quartz monzodiorite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"borehole specimen","SAMPLE_DESC":"[Quartz monzodiorite] Creaser & Cooper 1993 (EcGeol 88): The sample is a quartz monzodiorite from the Wirrda Suite. A sample of the same rock type had been analysed previously by Mortimer et al. (1988). Creaser and Cooper (1993) analysed a single air-abraded zircon fraction in an attempt to refine the age for this rock.","SAMPLING_FEATURE_NAME":"WMC/PD-3","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH147791","BOREHOLE_TOP_DEPTH_M":432.2,"BOREHOLE_BASE_DEPTH_M":434.1,"GEOLOGICAL_PROVINCE":"Stuart Shelf,Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-30.517377115,"LONG_GDA94":137.0075129959,"ELEV_M_AHD":118,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Creaser, R.A.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73603","AGE_REF":"Creaser, R.A., Cooper, J.A., 1993. U-Pb geochronology of middle Proterozoic felsic magmatism surrounding the Olympic Dam Cu-U-Au-Ag and Moonta Cu-Au-Ag deposits, South Australia. Economic Geology, 88(1), 186-197.","AGE_PUBLICATION_LINKS":"https://doi.org/10.2113/gsecongeo.88.1.186","AGE_ENTRY_DATE":"2025-11-18","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15471","geometry":{"type":"Point","coordinates":[137.57198004,-34.11443222]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15471,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1484663","IGSN":"10273/AU1484663","SAMPLENO":1484663,"SAMPLE_ID":"9392","AGE_MA":1582,"AGE_MA_UNCERTAINTY":7,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":8.3,"NUMBER_OF_ANALYSES":8,"CALCULATION_TYPE":"upper concordia intercept","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"206Pb/238U","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"isotope dilution: ion exchange chromatography","ANALYTICAL_COLLECTION_SYSTEM":"TIMS: MSZ mass spectrometer","LABORATORY_NAME":"University of Adelaide","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation, intrusive","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":29948,"STRAT_UNIT_PID":"https://pid.geoscience.gov.au/geologicFeature/au/SU29948","STRAT_UNIT_NAME":"White Dam Subsuite","INFORMAL_UNIT_NAME":null,"UNIT_NAME_SOURCE":"White Dam Suite","MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"intermediate intrusive rock","LITHOLOGY":"quartz monzonite","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"borehole specimen","SAMPLE_DESC":"[Quartz monzonite] Creaser & Cooper 1993 (EcGeol 88): The sample is a quartz monzonite from the White Dam Suite.","SAMPLING_FEATURE_NAME":"WMC/DD-33","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH147824","BOREHOLE_TOP_DEPTH_M":214.8,"BOREHOLE_BASE_DEPTH_M":216.9,"GEOLOGICAL_PROVINCE":"Stuart Shelf,Gawler Craton","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-34.114432225,"LONG_GDA94":137.5719800372,"ELEV_M_AHD":24,"ACCURACY_M":100,"LOCATION_METHOD":"method unknown","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Creaser, R.A.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"73603","AGE_REF":"Creaser, R.A., Cooper, J.A., 1993. U-Pb geochronology of middle Proterozoic felsic magmatism surrounding the Olympic Dam Cu-U-Au-Ag and Moonta Cu-Au-Ag deposits, South Australia. Economic Geology, 88(1), 186-197.","AGE_PUBLICATION_LINKS":"https://doi.org/10.2113/gsecongeo.88.1.186","AGE_ENTRY_DATE":"2025-11-18","AGE_LAST_UPDATED":"2025-11-25"}},{"type":"Feature","id":"interpreted_age_samples_all_geochronology.15483","geometry":{"type":"Point","coordinates":[136.89265205,-30.45051942]},"geometry_name":"SAMPLING_FEATURE_LOCATION","properties":{"AGE_NO":15483,"SAMPLE_PID":"https://pid.geoscience.gov.au/sample/AU1484691","IGSN":"10273/AU1484691","SAMPLENO":1484691,"SAMPLE_ID":"RX3222","AGE_MA":1592,"AGE_MA_UNCERTAINTY":8,"AGE_CONFIDENCE_LEVEL":"95% confidence","AGE_MSWD":null,"NUMBER_OF_ANALYSES":21,"CALCULATION_TYPE":"weighted mean","GEOLOGICAL_EVENT":"igneous crystallisation","ISOTOPIC_SYSTEM":"U/Pb","ISOTOPIC_RATIO":"207Pb/206Pb","MINERAL":"Zircon","MOUNT_ID":null,"ANALYTICAL_EXTRACTION_SYSTEM":"SIMS: O- or O2- source","ANALYTICAL_COLLECTION_SYSTEM":"SIMS: SHRIMP I","LABORATORY_NAME":"Australian National University","AGE_INTERPRETED_FROM_SOURCE":"magmatic crystallisation, intrusive","OTHER_AGE_INTERPRETED_FROM_SOURCE":null,"AGE_REMARK_FROM_SOURCE":null,"AGE_SOURCE":"GSSA/original publication(s)","PROJECT":null,"STRATNO":null,"STRAT_UNIT_PID":null,"STRAT_UNIT_NAME":null,"INFORMAL_UNIT_NAME":"Unknown","UNIT_NAME_SOURCE":null,"MATERIAL_TYPE":"rock","LITHOLOGY_GROUP":"acid intrusive rock","LITHOLOGY":"acid intrusive rock","MODE_OF_OCCURRENCE":null,"SAMPLE_TYPE":"core","SAMPLE_DESC":"366m below surface","SAMPLING_FEATURE_NAME":"RD32","SAMPLING_FEATURE_TYPE":"BOREHOLE","SAMPLING_FEATURE_PID":"https://pid.geoscience.gov.au/samplingFeature/au/BH621023","BOREHOLE_TOP_DEPTH_M":364,"BOREHOLE_BASE_DEPTH_M":367,"GEOLOGICAL_PROVINCE":"Stuart Shelf","GEOLOGICAL_REGION_NAME":null,"REGION_NAME_SOURCE":null,"STATE":"SA","COUNTRY":"AUS","LAT_GDA94":-30.4505194204,"LONG_GDA94":136.892652045,"ELEV_M_AHD":100,"ACCURACY_M":200,"LOCATION_METHOD":"other method","LOCATION_DESC":null,"SAMPLE_ACQUISITION_DATE":null,"SAMPLE_ORIGINATOR":"Johnson, J.P.","SAMPLE_PHOTO":"N","FIELDSITE_PHOTO":"N","AGE_REF_ID":"1257","AGE_REF":"Mortimer, G.E., Cooper, J.A., Paterson, H.L., Cross, K., Hudson, R.T., Uphill, R.K., 1988. Zircon U-Pb dating in the vicinity of the Olympic Dam Cu-U-Au Deposit, Roxby Downs, South Australia. Economic Geology, 83, 694-709.","AGE_PUBLICATION