WMS The Source Rock and Fluids Atlas delivery and publication services provide up-to-date information on petroleum (organic) geochemical and geological data from Geoscience Australia's Organic Geochemistry Database (ORGCHEM). The sample data provides the spatial distribution of petroleum source rocks and their derived fluids (natural gas and crude oil) from boreholes and field sites in onshore and offshore Australian basins. The services provide characterisation of source rocks through the visualisation of Pyrolysis, Organic Petrology (Maceral Groups, Maceral Reflectance) and Organoclast Maturity data. The services also provide molecular and isotopic characterisation of source rocks and petroleum through the visualisation of Bulk, Whole Oil GC, Gas, Compound-Specific Isotopic Analyses (CSIA) and Gas Chromatography-Mass Spectrometry (GCMS) data tables. Interpretation of these data enables the characterisation of petroleum source rocks and identification of their derived petroleum fluids that comprise two key elements of petroleum systems analysis. The composition of petroleum determines whether or not it can be an economic commodity and if other processes (e.g. CO2 removal and sequestration; cryogenic liquefaction of LNG) are required for development. pyrolysis reflectance petrology macerals organic geochemistry Geoscience Australia Client Services Postal

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ACT 2601 Australia +61 2 6249 9111 +61 2 6249 9999 clientservices@ga.gov.au NONE © Commonwealth of Australia (Geoscience Australia) 2024. This product is released under the Creative Commons Attribution 4.0 International Licence. http://creativecommons.org/licenses/by/4.0/legalcode text/xml image/png application/atom+xml application/geopackage+sqlite3 application/json;type=utfgrid application/pdf application/rss+xml application/vnd.google-earth.kml+xml application/vnd.google-earth.kml+xml;mode=networklink application/vnd.google-earth.kmz image/geotiff image/geotiff8 image/gif image/jpeg image/png; mode=8bit image/svg+xml image/tiff image/tiff8 image/vnd.jpeg-png image/vnd.jpeg-png8 text/html; subtype=openlayers text/html; subtype=openlayers2 text/html; subtype=openlayers3 text/plain application/vnd.ogc.gml text/xml application/vnd.ogc.gml/3.1.1 text/xml; subtype=gml/3.1.1 text/html application/json application/ld+json XML INIMAGE BLANK JSON The Source Rock and Fluids Atlas delivery and publication services provide up-to-date information on petroleum (organic) geochemical and geological data from Geoscience Australia's Organic Geochemistry Database (ORGCHEM). The sample data provides the spatial distribution of petroleum source rocks and their derived fluids (natural gas and crude oil) from boreholes and field sites in onshore and offshore Australian basins. The services provide characterisation of source rocks through the visualisation of Pyrolysis, Organic Petrology (Maceral Groups, Maceral Reflectance) and Organoclast Maturity data. The services also provide molecular and isotopic characterisation of source rocks and petroleum through the visualisation of Bulk, Whole Oil GC, Gas, Compound-Specific Isotopic Analyses (CSIA) and Gas Chromatography-Mass Spectrometry (GCMS) data tables. Interpretation of these data enables the characterisation of petroleum source rocks and identification of their derived petroleum fluids that comprise two key elements of petroleum systems analysis. The composition of petroleum determines whether or not it can be an economic commodity and if other processes (e.g. CO2 removal and sequestration; cryogenic liquefaction of LNG) are required for development. EPSG:3857 EPSG:4236 EPSG:4283 EPSG:3112 CRS:84 63.0 180.0 -75.00000000478495 -8.0 The layers in this layer group contain publicly available results from the GCMS SIR SAT database table in Geoscience Australia's organic geochemistry (ORGCHEM) schema to release the molecular (biomarker) compositions of the saturated hydrocarbon fraction separated from crude oils and source rock extracts. These analyses are undertaken by various laboratories in service and exploration companies, Australian government institutions and universities using gas chromatography-mass spectrometry (GC-MS) run in the selected ion recording (SIR) mode. Data includes the borehole or field site location, sample depth, shows and tests, stratigraphy, analytical methods, other relevant metadata, and the molecular composition of aliphatic hydrocarbons. These data provide information about the molecular composition of the source rock and its generated petroleum, enabling the determination of the type of organic matter and depositional environment of the source rock and its thermal maturity. Interpretation of these data enable the determination of oil-source and oil-oil correlations, migration pathways, and any secondary alteration of the generated fluids. These data are collated from Geoscience Australia records, destructive analysis reports (DARs) and well completion reports (WCRs), and the web service will be periodically updated. EPSG:4283 110.0 170.0 -45.00000004093542 -8.000000000612719 text/html orgchem:GCMSSIRSATAllSamples This layer contains publicly available results from the GCMS SIR SAT database table in Geoscience Australia's organic geochemistry (ORGCHEM) schema to release the molecular (biomarker) compositions of the saturated hydrocarbon fraction separated from crude oils and source rock extracts. These analyses are undertaken by various laboratories in service and exploration companies, Australian government institutions and universities using gas chromatography-mass spectrometry (GC-MS) run in the selected ion recording (SIR) mode. Data includes the borehole or field site location, sample depth, shows and tests, stratigraphy, analytical methods, other relevant metadata, and the molecular composition of aliphatic hydrocarbons. These data provide information about the molecular composition of the source rock and its generated liquid petroleum, enabling the determination of the type of organic matter and depositional environment of the source rock and its thermal maturity. Interpretation of these data enable the determination of oil-source and oil-oil correlations, migration pathways, and any secondary alteration of the generated fluids. These data are collated from Geoscience Australia records, destructive analysis reports (DARs) and well completion reports (WCRs), and the web service will be periodically updated. GCMS gas chromatography-mass spectrometry organic geochemistry selected ion recording molecular biomarker EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html The organic matter or kerogen in a rock is classified into maceral groups; liptinite, vitrinite and inertinite. Alginite is a subgroup of liptinite. A rock sample may also contain petroleum products generated from organic matter, referred to here as 'Other Maceral'. 5 layers are represented in this group: a) Alginite b) Liptinite c) Vitrinite d) Inertinite e) Other Maceral alginite liptinite vitrinite inertinite other maceral EPSG:4283 63.0 155.0 -75.00000000478495 -9.000000000938414 text/html orgchem:Alginite Macerals are components of kerogen that show petrographically distinct properties. The maceral alginite belongs to the liptinite maceral group. Alginite comprises organic-walled microfossils derived from algae, phytoplankton (dinoflagellates, acritarchs) and microbial mats. It is regarded as being oil-prone kerogen. Alginite data is provided as a percentage (%) of the total macerals. 2 styles are represented in this layer: a) Default alginite data available in the selected borehole b) Quantitative measurement of alginite as a percentage of the total macerals PLEASE NOTE: The attribute names in this layer have been modified. This may break applications and other clients with dependencies on the service. For further information please contact Geoscience Australia Client Services at clientservices@ga.gov.au. features websvc_petrology alginite samples range EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:Liptinite features websvc_petrology liptinite samples range EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:Vitrinite features websvc_petrology vitrinite range samples EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:Inertinite features websvc_petrology inertinite samples range EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:OtherMaceral features websvc_petrology other maceral range samples EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html The amount of light reflected from the surface of macerals (other than vitirinte) is used to provide an estimate of the thermal maturity of a rock sample. 5 layers are represented in this group: a) Mean inertinite reflectance b) Mean liptinite reflectance c) Mean alginite reflectance d) Mean bitumen reflectance e) Mean pyrobitumen reflectance reflectance inertinite liptinite alginite bitumen pyrobitumen mean EPSG:4283 63.0 155.0 -75.00000000478495 -9.000000000938414 text/html orgchem:MeanInertiniteReflectance features WEBSVC_REFLECTANCE inertinite EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:MeanLiptiniteReflectance features WEBSVC_REFLECTANCE Liptinite EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:MeanAlginiteReflectance features WEBSVC_REFLECTANCE Alginite mean EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:MeanBitumenReflectance features WEBSVC_REFLECTANCE Bitumen mean EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:MeanPyrobitumenReflectance features WEBSVC_REFLECTANCE Pyrobitumen EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html Natural gas comprises a mixture of organic (hydrocarbon) and inorganic gaseous compounds. The molecular compositions for natural gas are determined using gas chromatography (GC). The stable (carbon and hydrogen) isotopic values of individual compounds in natural gas are determined by compound specific isotopic analysis (CSIA) using gas chromatography-isotope ratio mass spectrometry (GC-IRMS). 10 layers are represented in this group: a) Collection Method. b) Methane. c) Gas Dryness. d) Hydrocarbon Gas Index. e)Carbon Dioxide f) Nitrogen. g) Helium. h) Hydrogen i) CSIA Carbon. j) CSIA Hydrogen. prep type methane gas dryness gas co2 gas nitrogen gas helium gas index csia carbon csia hydrogen EPSG:4283 112.0 156.0 -45.00000004093542 -9.000000000938416 text/html orgchem:Gas features websvc_gas prep_type EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:Methane features websvc_gas Methans EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:GasDryness 2%) and wet if the ratio is < 97 % (Tissot and Welte, 1984). Ro is the percent (%) of reflected white light from vitrinite as measured under a microscope using an oil immersion lens and provides a quantitive measurement of the thermal maturity of a rock sample. Further quantitative values can be applied for natural gas as follows: early oil associated gas (<70 mol% methane: ≤0.9% Ro); oil associated gas (70-80 mol% methane: 0.9%2%); and extremely dry gas (≥99 mol%). Extremely dry gas can originate from various sources including; biogenic gas, coal seam gas, heavily biodegraded thermogenic gas and high maturity thermogenic gas. 3 styles are represented in this layer: a) Gas Dryness: Samples - Samples with gas dryness values. b) Gas Dryness: Dry or wet - A bifold classification of dry and wet gas. c) Gas Dryness: Range - Classification of dry and wet gas. PLEASE NOTE: The attribute names in this layer have been modified. This may break applications and other clients with dependencies on the service. For further information please contact Geoscience Australia Client Services at clientservices@ga.gov.au. ]]> features websvc_gas C1-C5 thermogenic Ro vitrinite reflectance biogenic coal seam gas maturity EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:CarbonDioxide features websvc_gas Carbon Dioxide EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:Nitrogen features websvc_gas nitrogen EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:Helium features websvc_gas EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:HydrocarbonGasIndex features websvc_gas gas index EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:CSIAGasCarbon The stable carbon isotopic value of the C1 to C6 hydrocarbon gases and carbon dioxide (CO2) in a natural gas sample. Measurements are given in delta notation (d13C). 1 style is represented in this layer: a) CSIA Carbon: Samples - Default, samples with stable carbon isotopic compositional data measured in the selected borehole. PLEASE NOTE: The attribute names in this layer have been modified. This may break applications and other clients with dependencies on the service. For further information please contact Geoscience Australia Client Services at clientservices@ga.gov.au. features websvc_gas CSIA C1C6 EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:CSIAGasHydrogen The stable hydrogen (deuterium) isotopic value of the C1 to C6 hydrocarbon gases in a natural gas sample. Measurements are given in delta notation (dD). 1 style is represented in this layer: a) CSIA Hydrogen: Samples - Default, samples with stable hydrogen (deuterium) isotopic compositional data measured in the selected borehole. PLEASE NOTE: The attribute names in this layer have been modified. This may break applications and other clients with dependencies on the service. For further information please contact Geoscience Australia Client Services at clientservices@ga.gov.au. features websvc_gas csia_hydrogen EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:Hydrogen features websvc_gas gas hydrogen EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html The layers in this layer group deliver the collection of natural gas and fluid inclusion (FI) gas samples in Geoscience Australia's organic geochemistry database with publicly available isotopic data for the noble gases. Data includes borehole/field site header and sample metadata, the molecular composition for gas samples analysed for noble gas isotopes, and the noble gas isotopic values for Helium, Neon, Argon, Krypton and Xenon. noble gas isotopes natural gas fluid inclusion gas sample EPSG:4283 111.0 155.0 -43.0000000406189 -8.000000000612717 text/html orgchem:NobleGasIsotopesNaturalGasesAllSamples This layer contains the collection of gas samples in Geoscience Australia's organic geochemistry database with publicly available isotopic data for the noble gases. Data includes borehole/field site header and sample metadata, the molecular composition for gas samples analysed for noble gas isotopes, and the noble gas isotopic values for Helium (He, ³He, ⁴He), Neon (Ne, ²⁰Ne, ²¹Ne, ²²Ne), Argon (Ar, ³⁶Ar, ³⁸Ar, ⁴⁰Ar), Krypton (Kr, ⁷⁸Kr, ⁸⁰Kr, ⁸²Kr, ⁸⁴Kr, ⁸⁶Kr), and Xenon (Xe, ¹²⁴Xe, ¹²⁶Xe, ¹²⁸Xe, ¹²⁹Xe, ¹³⁰Xe, ¹³¹Xe, ¹³²Xe, ¹³⁴Xe, ¹³⁶Xe). nobel gas isotopes natural gas gas sample EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:NobleGasIsotopesFluidInclusionsAllSamples This layer contains the collection of fluid inclusion (FI) gas samples in Geoscience Australia's organic geochemistry database with publicly available isotopic data for the noble gases. Data includes borehole/field site header and sample metadata, the molecular composition for gas samples analysed for noble gas isotopes, and the noble gas isotopic values for Helium (He, ³He, ⁴He), Neon (Ne, ²⁰Ne, ²¹Ne, ²²Ne), Argon (Ar, ³⁶Ar, ³⁸Ar, ⁴⁰Ar), Krypton (Kr, ⁸⁴Kr), and Xenon (Xe, ¹³²Xe). noble gas isotopes fluid inclusion gas sample EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html The colour of some organic microfossil fragments (organoclasts) viewed in transmitted light can provide an estimate of the thermal maturity of a rock sample. 3 layers are represented in this group: a) Thermal Alteration Index (TAI) b) Spore Colouration Index (SCI) c) Conodont Alteration Index CAI) Thermal Alteration Spore Colouration Conodont index EPSG:4326 63.0 155.0 -75.0 -9.0 text/html orgchem:MeanTAI websvc_reflectance features thermal alteration EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:MinimumSCI websvc_reflectance features spore colouration EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:MinimumCAI websvc_reflectance features conodont alteration EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html Petroleum is composed primarily of hydrocarbons (carbon and hydrogen) with minor quantities of organic compounds containing sulphur, and/or nitrogen, and/or oxygen. The molecular composition of petroleum and extractable organic matter (EOM) from rocks are determined using gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS). The stable carbon and hydrogen isotopic values of individual compounds in petroleum and EOM are determined by compound specific isotopic analysis (CSIA) using gas chromatography-isotope ratio mass spectrometry (GC-IRMS). 5 layers are represented in this group: a) Maximum Show b) CSIA Carbon. c) CSIA Hydrogen. d) Whole Oil GC e) Saturates GC EPSG:4283 112.0 156.0 -45.00000004093542 -9.000000000938416 text/html orgchem:CSIACarbon The stable carbon isotope value of the hydrocarbons (n-alkanes, pristane, phytane) in a petroleum sample or an extractable organic matter (EOM) rock sample, obtained using compound specific isotopic analysis (CSIA). Measurements are given in delta notation (d13C). a) CSIA Carbon: Samples - Default, samples with stable carbon isotopic compositional data measured in the selected borehole. b) CSIA Carbon: Material Class - The type of sample (natural gas, condensate, crude oil, rock extract) with stable carbon isotopic compositional data measured in the selected borehole. PLEASE NOTE: The attribute names in this layer have been modified. This may break applications and other clients with dependencies on the service. For further information please contact Geoscience Australia Client Services at clientservices@ga.gov.au. features websvc_csia EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:CSIAHydrogen The stable hydrogen (deuterium) isotope value of the hydrocarbons (n-alkanes, pristane, phytane) in a petroleum sample or an extractable organic matter (EOM) rock sample, obtained using compound specific isotopic analysis (CSIA). Measurements are given in delta notation (dD). 2 styles are represented in this layer: a) CSIA Hydrogen: Samples - Default, samples with stable hydrogen (deuterium) isotopic compositional data measured in the selected borehole. b) CSIA Hydrogen: Material Class - The type of sample (natural gas, condensate, crude oil, rock extract) with stable carbon isotopic compositional data measured in the selected borehole. PLEASE NOTE: The attribute names in this layer have been modified. This may break applications and other clients with dependencies on the service. For further information please contact Geoscience Australia Client Services at clientservices@ga.gov.au. features websvc_csia EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:WholeOilGasChromatography websvc_whole_oil_gc features gas chromatography alkanes isoprenoids pristane phytane EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:GasChromatographySaturates gas chromatography alkanes isoprenoids pristane phytane EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html Petroleum is composed primarily of hydrocarbons (carbon and hydrogen) with minor quantities of organic compounds containing sulphur, and/or nitrogen, and/or oxygen. The layers in this layer group deliver publicly available analytical data for bulk petroleum samples held in Geoscience Australia's organic geochemistry database, including: borehole header and sample metadata; bulk petroleum properties including API gravity, weight percent sulphur, chemical composition; and the carbon and hydrogen isotopic compositions of the whole oil and saturated hydrocarbon fraction. The "all samples" layer covers the full collection of samples with petroleum bulk property and stable isotope analytical data. Layers are provided for each of the bulk petroleum properties and isotopic compositions, constrained to the subset of samples with analytical data available for the respective property. petroleum bulk petroleum property stable isotope hydrocarbon oil whole oil EPSG:4283 113.83431972 150.39665278 -39.86225559893448 -10.080130365281404 text/html orgchem:PetroleumBulkPropsStableIsoAllSamples This layer contains the collection of samples in Geoscience Australia's organic geochemistry database with publicly available petroleum bulk property and stable isotope analytical data. Petroleum is composed primarily of hydrocarbons (carbon and hydrogen) with minor quantities of organic compounds containing sulphur, and/or nitrogen, and/or oxygen. Hence, the layer provides borehole/field site header and sample metadata, and the bulk properties for petroleum which includes; API gravity, weight percent sulphur, chemical composition, and the stable carbon (¹³C/¹²C) and hydrogen (²H/¹H) isotopic ratios of the whole crude oil and derivative saturated and aromatic hydrocarbon fractions. petroleum bulk petroleum property stable isotope hydrocarbon oil whole oil EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:PetroleumSampleShows The petroleum fluid (oil) shows for the analysed samples in the boreholes. petroleum petroleum shows EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:PetroleumPhotographs Photographs of the crude oil, bitumen, asphalt, or refined petroleum specimens held in the repository at Geoscience Australia in either the Australian National Hydrocarbon Fluids Collection or the legislated Offshore Petroleum and Greenhouse Gas Storage Act (OPGGSA) 2006 Physical Fluids Collection. petroleum sample photograph crude oil bitumen asphalt EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:ReservoirTemperature The temperature (degrees Celcius) of the reservoir when the petroleum sample was taken. petroleum temperature reservoir EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:ReservoirPressure The pressure (pounds per square inch absolute - PSIA) of the reservoir when the petroleum sample was taken. petroleum pressure reservoir EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:APIGravity The American Petroleum Institute (API) gravity is a measure of density for petroleum. API gravity is gradated in degrees on a hydrometer. The API gravity of petroleum is compared to fresh water, which has an API gravity of 10. It is derived from the specific gravity of the fluid measured at 60°F (15.56°C) using a table of standard measurements (e.g. ASTM-API Petroleum Measurement Tables, 1952). API gravity = (141.5 /specific gravity at 60°F) – 131.5. The qualitative sub-division of petroleum type based on API gravity has been applied after Dembicki (2017): extra heavy crude oil (API≤10°); heavy crude oil (10°<API≤25°), medium crude oil (25°<API≤35°), light crude oil (35°<API≤45°), and condensate (API>45°). Geoscience Australia defines extra heavy crude oils where API <10°. The qualitative sub-division of petroleum phase based on API gravity has been applied after Jarvie et al. (2015): black oil (20°<API≤40°), volatile oil (40°<API≤50°), gas-condensate (50°<API≤55°), rich wet gas (55°<API≤60°), and lean wet gas (API>60°). bulk oil API gravity petroleum EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:Sulphur The quantity of sulphur (S) in a crude oil that is expressed in weight percent (wt %). The qualitative sub-division of low sulphur (S ≤ 1%) and high sulphur (S > 1%) crude oil has been applied after Tissot & Welte (1984). Geoscience Australia defines very low sulphur crude oils where S ≤ 0.25%. The qualitative sub-division of sweet (S ≤ 0.5%) and sour (S > 0.5%) crude oil has been applied after Dembicki (2017). petroleum sulphur EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:NickelVanadiumRatio The Nickel to Vanadium ratio (Ni/Ni+V) value of the whole oil sample. petroleum nickel vanadium Nickel to Vanadium ratio EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:SARAAnalyses The laboratory preparations undertaken to separate the petroleum sample into saturated hydrocarbons, aromatic hydrocarbons, resins (or polars) and asphaltenes (SARA). Measurements are given in milligrams (mg). petroleum SARA saturated hydrocarbons aromatic hydrocarbons resins polars asphaltenes EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:SARAAnalysesNaphthenes The laboratory preparations undertaken to separate the saturated hydrocarbon fraction (derived from the petroleum sample) into naphthenes (branched and cyclic alkanes) and n-alkanes. Measurements are given in milligrams (mg). petroleum naphthenes SARA EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:CarbonIsotopeWholeOil The stable carbon isotopic ratio (¹³C/¹²C) of either the whole oil sample or the topped oil sample. Measurements are given in per mil (‰) and delta notation (δ¹³C) relative to the Vienna Peedee Belemnite (VPDB) standard. petroleum carbon isotopic ratio whole oil EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:CarbonIsotopePetroleumSaturates The stable carbon isotopic ratio (¹³C/¹²C) of the bulk C₁₂₊ hydrocarbons in the saturated fraction of a petroleum sample. Measurements are given in per mil (‰) and delta notation (δ¹³C) relative to the Vienna Peedee Belemnite (VPDB) standard. petroleum carbon isotopic ratio saturated fraction EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:CarbonIsotopePetroleumAromatics The stable carbon isotopic ratio (¹³C/¹²C) of the bulk C₁₂₊ hydrocarbons in the aromatic fraction of a petroleum sample. Measurements are given in per mil (‰) and delta notation (δ¹³C) relative to the Vienna Peedee Belemnite (VPDB) standard. petroleum carbon isotopic ratio aromatic fraction EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:HydrogenIsotopeWholeOil The stable hydrogen (deuterium) isotopic ratio (²H/¹H) of either the bulk whole oil sample or the topped oil sample. Measurements are given in per mil (‰) and delta notation (δD) relative to the Vienna Standard Mean Ocean Sea Water (VSMOW) standard. petroleum hydrogen isotopic ratio whole oil EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:HydrogenIsotopePetroleumSaturates The stable hydrogen isotopic ratio (²H/¹H) of the bulk C₁₂₊ hydrocarbons in the saturated fraction of a petroleum sample. Measurements are given in per mil (‰) and delta notation (δ²H) relative to the Vienna Standard Mean Ocean Sea Water (VSMOW) standard. petroleum hydrogen isotopic ratio saturated fraction EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:NitrogenIsotopePetroleum The stable nitrogen isotopic ratio (¹⁵N/¹⁴N) of either the bulk whole oil sample or the topped oil sample. Measurements are given in per mil (‰) and delta notation (δD) relative to the atmospheric Air standard. petroleum nitrogen isotopic ratio whole oil EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:SulphurIsotopePetroleum The stable sulphur isotopic ratio (³⁴S/³²S) of either the bulk whole oil sample or the topped oil sample. Measurements are given in per mil (‰) and delta notation (δD) relative to the Vienna Cañon Diablo meteorite (VCDT) standard. petroleum sulphur isotopic ratio whole oil EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html Pyrolysis is the analytical technique used to determine the quantity and composition of organic matter in a rock sample. 8 layers are represented in this group: a) Total Organic Carbon (TOC) b) Tmax c) S1 Plus S2 (S1+S2) d) Production Index (PI) e) Hydrogen Index (HI) f) Oxygen Index (OI) g) Shale Gas h) Pyrolysis Raw (samples) pyrolysis Tmax Hydrogen Index oxygen index shale gas raw EPSG:4283 63.0 155.0 -75.00000000478495 -9.000000000938414 text/html orgchem:TotalOrganicCarbon Rock Eval Pyrolysis S1 S2 S4 TOC GA Peters Organic Richness Organic Richness EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:Tmax Tmax Cracking Rock Eval Pyrolysis S1 S2 S3 EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:S1PlusS2 S1 S2 Rock Eval GA Peters Source Rock Potential EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:HydrogenIndex S2 Pyrolysis Total Organic Carbon Kerogen EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:ProductionIndex Production Index S1 S2 Maturity Cracking EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:OxygenIndex Pyrolysis S3 Total Organic Carbon EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:ShaleGas Pyrolysis Shale Gas Shale Gas Gas EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:PyrolysisRaw The pyrolysis raw table contains ALL results collated for total organic carbon (TOC) and pyrolysis analyses. Note: samples with incomplete data sets are provided. 1 style is represented in this layer: a) Pyrolysis Raw: Samples - Default TOC and pyrolysis data available in the selected borehole. PLEASE NOTE: The attribute names in this layer have been modified. This may break applications and other clients with dependencies on the service. For further information please contact Geoscience Australia Client Services at clientservices@ga.gov.au. websvc_pyrolysis_raw features pyrolysis raw EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html This layer group contains layers for the collection of samples (whole rock or kerogen) in Geoscience Australia's organic geochemistry (ORGCHEM) database with pyrolysis-gas chromatography (pyrolysis-GC) data. The samples are from boreholes and field sites with the analyses undertaken by various laboratories in service and exploration companies using a range of instruments. Data includes basin, borehole, stratigraphic and sample metadata, and the molecular composition of the pyrolysates. The concentrations of the aliphatic hydrocarbon, aromatic hydrocarbon and organic sulphur compounds are given in several units of measure [e.g., percent (resolved compounds) in the S2 peak (wt% S2), milligrams per gram of rock (mg/g rock), micrograms per gram of kerogen (mg/g kerogen) etc.]. These data are used to determine the organic richness, kerogen type and thermal maturity of source rocks. The results are used as input parameters in basin analysis and petroleum systems modelling to evaluate the potential for hydrocarbon generation in a basin. These data are collated from destructive analysis reports (DARs), well completion reports (WCRs) and literature. The data are delivered in the Source Rock Pyrolysis-Gas Chromatography web services on the Geoscience Australia portal at https://portal.ga.gov.au which will be periodically updated. pyrolysis pyrolysis-GC pyrolysis-gas chromatography organic geochemistry EPSG:4283 110.0 170.0 -45.00000004093542 -8.000000000612719 text/html orgchem:PyrolysisGCAllSamples This layer contains publicly available results from Geoscience Australia's organic geochemistry (ORGCHEM) database and supporting oracle databases for open system pyrolysis-gas chromatography (pyrolysis-GC) analyses performed on either source rocks or kerogen samples taken from boreholes and field sites. The analyses are undertaken by various laboratories in service and exploration companies using a range of instruments. Data includes the borehole location, sample depth, stratigraphy, analytical methods and other relevant metadata, as well as the molecular composition of the pyrolysates. The concentrations of the aliphatic hydrocarbon, aromatic hydrocarbon and organic sulfur compounds are given in several units of measure [e.g., percent (resolved compounds) in the S2 peak (wt% S2), milligrams per gram of rock (mg/g rock), micrograms per gram of kerogen (mg/g kerogen) etc.]. These data are used to determine the organic richness, kerogen type and thermal maturity of source rocks. The results are used as input parameters in basin analysis and petroleum systems modelling to evaluate the potential for hydrocarbon generation in a basin. These data are collated from destructive analysis reports (DARs), well completion reports (WCRs) and literature, and the web services will be periodically updated. pyrolysis pyrolysis-GC pyrolysis-gas chromatography organic geochemistry EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:PyrolysisGCPreparationType This layer contains publicly available results from Geoscience Australia's organic geochemistry (ORGCHEM) database and supporting oracle databases for open system pyrolysis-gas chromatography (pyrolysis-GC) analyses. These analyses are performed on source rock samples taken from boreholes and field sites where the laboratory preparation type can be either powdered whole rock or kerogen. pyrolysis pyrolysis-GC pyrolysis-gas chromatography organic geochemistry preperation type kerogen whole rock EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html This layer group contains the collection of soil samples in Geoscience Australia's organic geochemistry database with publicly available gas data. Data includes field site header and sample metadata, and the molecular composition with air included in the reported results for the soil gas samples. The concentrations of carbon monoxide (CO), helium (He), hydrogen (H₂) and methane (C₁, CH₄) are given in parts per million (ppm). The concentrations of argon (Ar), carbon dioxide (CO₂), nitrogen (N₂) and oxygen (O₂) are given in mole percent (mol%). soil soil gas molecular composition EPSG:4283 111.0 153.0 -43.0000000406189 -8.000000000612717 text/html orgchem:SoilGasAllSamples This layer contains publicly available results from the soil gas database table in Geoscience Australia's organic geochemistry (ORGCHEM) schema and supporting oracle databases for gas analyses undertaken by Geoscience Australia's laboratory on soil samples taken from shallow (down to 1 m below the surface) percussion holes which have been released in reports. Data includes the percussion hole field site location, sample depth, analytical methods, and other relevant metadata, as well as the molecular and isotopic compositions of the soil gas with air included in the reported results. Acquisition of the molecular compounds are by gas chromatography (GC) and the isotopic ratios by gas chromatography-combustion-isotope ratio mass spectrometry (GC-C-IRMS). The concentrations of argon (Ar), carbon dioxide (CO₂), nitrogen (N₂) and oxygen (O₂) are given in mole percent (mol%). The concentrations of carbon monoxide (CO), helium (He), hydrogen (H₂) and methane (C₁, CH₄) are given in parts per million (ppm). Compound concentrations that are below detection limit (BDL) are reported as the value -99999. The isotopic ratios of carbon and nitrogen are presented in parts per mil (‰) and in delta notation as δ¹³C and δ¹⁵N, respectively. Determining the individual sources and migration pathways of the components of natural gases found in the near surface are useful in basin analysis with derived information being used to support Australian exploration for energy resources (petroleum and hydrogen) and helium.These data are collated from Geoscience Australia records and the web service will be periodically updated. soil soil gas molecular composition carbon isotope ratio of CO2 nitrogen isotope ratio of N2 EPSG:4283 CRS:84 112.0 170.0 -43.0 -8.0 text/html text/html orgchem:SoilGasCarbonMonoxide This layer contains the soil gas samples in Geoscience Australia's organic geochemistry database with carbon monoxide (CO) concentration in parts per million (ppm). soil soil gas carbon monoxide CO EPSG:4283 CRS:84 112.0 170.0 -43.0 -8.0 text/html text/html orgchem:SoilGasHelium This layer contains the soil gas samples in Geoscience Australia's organic geochemistry database with helium (He) analyses, measured for concentration of helium in parts per million (ppm) with air included in the results. soil soil gas helium He EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html text/html orgchem:SoilGasHydrogen This layer contains the soil gas samples in Geoscience Australia's organic geochemistry database with hydrogen (H₂) analyses, measured for concentration of hydrogen in parts per million (ppm) with air included in the results. soil soil gas hydrogen EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html text/html orgchem:SoilGasMethane This layer contains the soil gas samples in Geoscience Australia's organic geochemistry database with methane (C₁, CH₄) analyses, measured for concentration of methane in parts per million (ppm) with air included in the results. soil soil gas methane EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html text/html orgchem:SoilGasArgon This layer contains the soil gas samples in Geoscience Australia's organic geochemistry database with argon (Ar) concentration in mole percent (mol%) with air included in the results. soil soil gas argon EPSG:4283 CRS:84 112.0 170.0 -43.0 -8.0 text/html text/html orgchem:SoilGasCarbonDioxide This layer contains the soil gas samples in Geoscience Australia's organic geochemistry database with carbon dioxide (CO₂) concentration in mole percent (mol%) with air included in the results. soil soil gas carbon dioxide CO2 EPSG:4283 CRS:84 112.0 170.0 -43.0 -8.0 text/html text/html orgchem:SoilGasNitrogen This layer contains the soil gas samples in Geoscience Australia's organic geochemistry database with nitrogen (N₂) concentration in mole percent (mol%) with air included in the results. soil soil gas nitrogen N2 EPSG:4283 CRS:84 112.0 170.0 -43.0 -8.0 text/html text/html orgchem:SoilGasOxygen This layer contains the soil gas samples in Geoscience Australia's organic geochemistry database with oxygen (O₂) concentration in mole percent (mol%) with air included in the results. soil soil gas oxygen O2 EPSG:4283 CRS:84 112.0 170.0 -43.0 -8.0 text/html text/html The 'bulk' properties of organic-rich/source rocks (e.g. shale, oil shale, coal) include; carbon, hydrogen and sulphur concentration and the molecular composition of saturated and aromatic hydrocarbons. The layers in this layer group deliver publicly available analytical data for organic-rich/source rock samples held in Geoscience Australia's organic geochemistry database, including: borehole header and sample metadata; bulk source rock (e.g. shale, oil shale, coal) properties including carbon, hydrogen and sulphur concentration and the molecular composition of saturated and aromatic hydrocarbons; and the stable isotopic ratios of carbon, hydrogen, sulphur and nitrogen for kerogen, extractable organic matter (EOM) and the derivative saturated and aromatic hydrocarbon fractions. The "all samples" layer covers the full collection of samples with bulk source rock property and stable isotope analytical data. Layers are provided for each of the bulk source rock properties and isotopic compositions, constrained to the subset of samples with analytical data available for the respective property. source rock bulk property stable isotope EOM hydrocarbon extractable organic matter EPSG:4283 111.0 155.0 -43.0000000406189 -8.000000000612717 text/html orgchem:SourceRockBulkPropsStableIsoAllSamples This layer contains the collection of samples in Geoscience Australia's organic geochemistry database with publicly available bulk property and stable isotope analytical data for rocks that contain organic matter, typically referred to as source rocks (e.g. organic-rich shale, oil shale, and coal). The layer provides borehole/field site header and sample metadata, and 'bulk' properties of organic-rich rocks which includes; carbon, hydrogen and sulphur concentration (also see pyrolysis results layer), and the molecular composition of hydrocarbon and non-hydrocarbon fractions. Isotopic ratios of carbon (¹³C/¹²C), hydrogen (²H/¹H) are given for kerogen, extractable organic matter (EOM), and derivative saturated and aromatic hydrocarbon fractions. source rock bulk property stable isotope hydrocarbon EOM extractable organic matter EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:RockPhotographs Photographs of either the organic-rich rock (shale, coal, oil shale) or rock containing bitumen/oil stain. Samples may be held either in the repository at Geoscience Australia or in the state and territory core libraries. rock sample photograph shale coal oil shale bitumen oil stain EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:GrainsWithOilInclusions The number of grains with oil inclusions (GOI) measured in a rock sample. oil inclusions rock sample grains EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:ElementalCarbon The quantity of elemental carbon (C) in the sedimentary rock that is expressed in weight percent (wt%). elemental carbon sedimentary rock carbon EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:ElementalSulphur The quantity of elemental sulphur (S) in the rock that is expressed in weight percent (wt%). The qualitative sub-division of low sulfur (S < 4wt%), medium sulphur (4–8wt%) and high sulphur (S > 8wt%) crude oil has been applied after Orr (1986). elemental sulphur sulphur rock sample EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:NickelVanadiumRatioEOM The Nickel to Vanadium ratio (Ni/Ni+V) value of the rock sample. nickel vanadium Nickel to Vanadium ratio rock sample extractable organic matter EOM EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:SARAAnalysesEOMMg The laboratory preparations undertaken to isolate the extractable organic matter (EOM or C₁₂₊ hydrocarbons) in the rock. The EOM is separated into saturated hydrocarbons, aromatic hydrocarbons, resins (or polars) and asphaltenes (SARA). Measurements are given in milligrams (mg). SARA Analyses C12+ hydrocarbons extractable organic matter EOM EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:SARAAnalysesEOMPpm The laboratory preparations undertaken to isolate the extractable organic matter (EOM or C₁₂₊ hydrocarbons) in the rock. The EOM is separated into saturated hydrocarbons, aromatic hydrocarbons, resins (or polars) and asphaltenes (SARA). Measurements are given in parts per million (ppm). SARA Analyses C12+ hydrocarbons extractable organic matter EOM EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:SARAAnalysesEOMNaphthenes The laboratory preparations undertaken on the saturated hydrocarbon fraction (derived from the extractable organic matter (EOM)) into naphthenes (branched and cyclic alkanes) and n-alkanes. Measurements are given in milligrams (mg). naphthenes saturated hydrocarbon fraction extractable organic matter EOM EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:CarbonIsotopeKerogen The stable carbon isotopic ratio (¹³C/¹²C) of the kerogen isolated from the rock. Measurements are given in per mil (‰) and delta notation (δ¹³C) relative to the Vienna Peedee Belemnite (VPDB) standard. carbon isotopic ratio kerogen EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:CarbonIsotopeEOM The stable carbon isotopic ratio (¹³C/¹²C) of the extractable organic matter (EOM or C₁₂₊ hydrocarbons) obtained from the rock. Measurements are given in per mil (‰) and delta notation (δ¹³C) relative to the Vienna Peedee Belemnite (VPDB) standard. carbon isotopic ratio C12+ hydrocarbons extractable organic matter EOM EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:CarbonIsotopeEOMAromatics The stable carbon isotopic ratio (¹³C/¹²C) of the aromatic hydrocarbon fraction from the extractable organic matter (EOM) (C₁₂₊ hydrocarbons). Measurements are given in per mil (‰) and delta notation (δ¹³C) relative to the Vienna Peedee Belemnite (VPDB) standard. aromatic hydrocarbon fraction carbon isotopic ratio C12+ hydrocarbons extractable organic matter EOM EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:CarbonIsotopeEOMSaturates The stable carbon isotopic ratio (¹³C/¹²C) of the saturated hydrocarbon fraction from the extractable organic matter (EOM) (C₁₂₊ hydrocarbons). Measurements are given in per mil (‰) and delta notation (δ¹³C) relative to the Vienna Peedee Belemnite (VPDB) standard. carbon isotopic ratio saturated hydrocarbon fraction C12+ hydrocarbons extractable organic matter EOM EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:HydrogenIsotopeKerogen The stable hydrogen (deuterium) isotopic ratio (²H/¹H) of the kerogen isolated from the rock. Measurements are given in per mil (‰) and delta notation (δD) relative to the Vienna Standard Mean Ocean Sea Water (VSMOW) standard. hydrogen isotopic ratio deuterium kerogen EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:HydrogenIsotopeEOM The stable hydrogen (deuterium) isotopic ratio (²H/¹H) of the extractable organic matter (EOM or C₁₂₊ hydrocarbons) obtained from the rock. Measurements are given in per mil (‰) and delta notation (δ²H) relative to the Vienna Standard Mean Ocean Sea Water (VSMOW) standard. hydrogen isotopic ratio deuterium C12+ hydrocarbons extractable organic matter EOM EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:HydrogenIsotopeEOMSaturates The stable hydrogen (deuterium) isotopic (²H/¹H) ratio of the saturated hydrocarbon fraction from the extractable organic matter (EOM) (C₁₂₊ hydrocarbons). Measurements are given in per mil (‰) and delta notation (δ²H) relative to the Vienna Standard Mean Ocean Sea Water (VSMOW) standard. hydrogen isotopic ratio deuterium saturated hydrocarbon fraction C12+ hydrocarbons EOM extractable organic matter EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:NitrogenIsotopeKerogen The stable nitrogen isotopic ratio (¹⁵N/¹⁴N) of the kerogen sample. Measurements are given in per mil (‰) and delta notation (δD) relative to the Atmospheric Air standard. nitrogen isotopic ratio kerogen EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:SulphurIsotopeKerogen The stable sulphur isotopic ratio (³⁴S/³²S) of the kerogen sample. Measurements are given in per mil (‰) and delta notation (δ³⁴S) relative to the Vienna Cañon Diablo meteorite (VCDT) standard. sulphur isotopic ratio kerogen EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html The layers in this layer group deliver publicly available analytical data for the stable isotopes of carbonates held in Geoscience Australia's organic geochemistry database. Data includes the stable carbon (¹³C/¹²C), oxygen (¹⁸O/¹⁶O), nitrogen (¹⁵N/¹⁴N) and sulphur (³⁴S/³²S) isotopic ratios measured for the carbonate component of sedimentary rocks. isotopic ratio carbonate EPSG:4283 111.0 143.0 -32.00000002949699 -22.000000013335416 text/html orgchem:StableIsotopesCarbonatesAllSamples This layer contains the collection of samples in Geoscience Australia's organic geochemistry database with publicly available analytical data for the stable isotopes of carbonates. Data includes borehole/field site header and sample metadata, and the stable carbon (¹³C/¹²C) and oxygen (¹⁸O/¹⁶O) isotopic ratios measured for the carbonate component of sedimentary rocks. Nitrogen (¹⁵N/¹⁴N) and sulphur (³⁴S/³²S) isotopic ratios measurements are available for other rock types. isotopes of carbonates isotopes carbonates carbon oxygen sulphur nitrogen EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:CarbonateContent The amount of carbonate in the rock in weight percent (wt%). carbonate carbonate content EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:CarbonIsotopeCarbonate The stable carbon isotopic ratio (¹³C/¹²C) of the carbonate component in rocks. Measurements are given in per mil (‰) and delta notation (δ¹³C) relative to the Vienna Peedee Belemnite (VPDB) standard. carbon isotopic ratio carbonate EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:OxygenIsotopeCarbonate The stable oxygen isotopic ratio (¹⁸O/¹⁶O) of the carbonate component in rocks. Measurements are given in per mil (‰) and delta notation (δ¹⁸O) relative to the Vienna Standard Mean Ocean Sea Water (VSMOW) standard. oxygen isotopic ratio carbonate EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html The amount of light reflected from the surface of vitrinite has been calibrated to provide a quantitative measurement of the thermal maturity of a rock sample. 4 layers are represented in this group: a) Derived mean random vitrinite reflectance b) Mean random vitrinite reflectance c) Mean maximum vitrinite reflectance d) Mean unspecified vitrinite reflectance vitrinite reflectance mean derived random fluorescence EPSG:4326 63.0 155.0 -75.0 -9.0 text/html orgchem:RandomMeanDerivedVitriniteReflectance The maceral groups in coals and sedimentary rocks change their chemical and physical properties with increasing thermal maturity. The amount of light reflected from the maceral is measured under a microscope using an oil immersion lens. The derived mean random reflectance of vitrinite (%Ro) column contains the measured values of the mean random reflectance of vitrinite and those calculated from the measured mean maximum reflectance of vitrinite using the equation VR_RMAX_MEAN/1.066. Vitrinite Reflectance increases with maturity and is greater than that of liptinite macerals but less than that of inertinite macerals. It is used as the primary measure of thermal maturity in basin analysis, with a range from 0.2%Ro in peat to 8%Ro in anthracite. 5 styles are represented in this layer: a) VR Random (Mean Derived) : Samples - Default derived mean random vitrinite reflectance data available in the selected borehole. b) VR Random (Mean Derived) : Range (%Ro) – A quantitative measurement of derived mean random vitrinite reflectance. c) VR Random (Mean Derived) : Maturity (GA) - A qualitative definition of petroleum source rock maturity based on the quantitative measurement of derived mean random vitrinite reflectance (Geoscience Australia). d) VR Random (Mean Derived) : Maturity (Peters) - A qualitative definition of petroleum source rock maturity based on the quantitative measurement of derived mean random vitrinite reflectance (Peters et al., 2005). e) VR Random (Mean Derived) : Maturity (Jarvie) - A qualitative definition of petroleum source rock maturity based on the quantitative measurement of derived mean random vitrinite reflectance (Jarvie, 2015). PLEASE NOTE: The attribute names in this layer have been modified. This may break applications and other clients with dependencies on the service. For further information please contact Geoscience Australia Client Services at clientservices@ga.gov.au. websvc_reflectance features vitrinite mean derived GA peters jarvie EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:RandomMeanVitriniteReflectance The maceral groups in coals and sedimentary rocks change their chemical and physical properties with increasing thermal maturity. The amount of light reflected from the maceral is measured under a microscope using an oil immersion lense. The mean random reflectance of vitrinite (%Ro) increases with maturity and is greater than that of liptinite macerals but less than that of inertinite macerals. It is used as the primary measure of thermal maturity in basin analysis, with a range from 0.2%Ro in peat to 8%Ro in anthracite. 1 style is represented in this layer: a) Default vitrinite reflectance data available in the selected borehole PLEASE NOTE: The attribute names in this layer have been modified. This may break applications and other clients with dependencies on the service. For further information please contact Geoscience Australia Client Services at clientservices@ga.gov.au. websvc_reflectance features random mean EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:MeanMaximumVitriniteReflectance The maceral groups in coals and sedimentary rocks change their chemical and physical properties with increasing thermal maturity. The amount of light reflected from the maceral is measured under a microscope using an oil immersion lense. The mean maximum reflectance of vitrinite (%Ro) increases with maturity and is greater than that of liptinite macerals but less than that of inertinite macerals. It is used as the primary measure of thermal maturity in basin analysis, with a range from 0.2%Ro in peat to 8%Ro in anthracite. 1 style is represented in this layer: a) Default mean maximum vitrinite reflectance data available in the selected borehole PLEASE NOTE: The attribute names in this layer have been modified. This may break applications and other clients with dependencies on the service. For further information please contact Geoscience Australia Client Services at clientservices@ga.gov.au. websvc_reflectance features vr maximum mean vitrinite maximum mean EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:MeanUnspecifiedVitriniteReflectance The maceral groups in coals and sedimentary rocks change their chemical and physical properties with increasing thermal maturity. The amount of light reflected from the maceral is measured under a microscope using an oil immersion lense. The reflectance of vitrinite (%Ro) unspecified refers to values where it is uncertain if the measured values are random or maximum vitrinite reflectance values. Vitrinite reflectance increases with maturity and is greater than that of liptinite macerals but less than that of inertinite macerals. It is used as the primary measure of thermal maturity in basin analysis, with a range from 0.2%Ro in peat to 8%Ro in anthracite. 1 style is represented in this layer: a) Default vitrinite reflectance unspecified (%Ro) data available in the selected borehole PLEASE NOTE: The attribute names in this layer have been modified. This may break applications and other clients with dependencies on the service. For further information please contact Geoscience Australia Client Services at clientservices@ga.gov.au. websvc_reflectance features vitrinite reflectance unspecified mean EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:MeanFAMMVitriniteReflectance The mean vitrinite reflectance value derived from the fluorescence alteration of multiple macerals (FAMM). This analysis is applied to evaluate the thermal maturity of a rock. 1 style is represented in this layer: a) Default FAMM-derived vitrinite reflectance data available in the selected borehole PLEASE NOTE: The attribute names in this layer have been modified. This may break applications and other clients with dependencies on the service. For further information please contact Geoscience Australia Client Services at clientservices@ga.gov.au. websvc_reflectance features mean EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html orgchem:CombinedPyrolysisVitriniteReflectance This layer combines key pyrolysis and vitrinite reflectance data typically used as input parameters in petroleum systems modelling. The full datasets are available in the PYROLYSIS and VITRINITE REFLECTANCE web services. pyrolysis vitrinite reflectance EPSG:4283 CRS:84 110.0 180.0 -45.0 -8.0 text/html orgchem:FluidInclusionStratigraphyAllSamples This layer contains publicly available results from the Fluid Inclusion Stratigraphy database table in Geoscience Australia's organic geochemistry (ORGCHEM) schema and supporting oracle databases for Fluid Inclusion Stratigraphy (FIS) analyses undertaken by FIT, a Schlumberger Company (and predecessors), on fluid inclusions in rock samples taken from boreholes. Data includes the borehole location, sample depth, stratigraphy, analytical methods and other relevant metadata, as well as the mass spectrometry results presented as atomic mass units (amu) from 2 to 180 in parts per million (ppm) micro electronvolts (μeV). Fluid inclusions (FI) are microscopic samples of fluids trapped within minerals in the rock matrix and cementation phases. Hence, these FIS data record the bulk volatile chemistry of the fluid inclusions (i.e., water, gas, and/or oil) present in the rock sample and determine the relative abundance of the trapped compounds (e.g., in amu order, hydrogen, helium, methane, ethane, carbon dioxide, higher molecular weight aliphatic and aromatic hydrocarbons, and heterocyclic compounds containing nitrogen, oxygen or sulfur). The FI composition can be used to identify the presence of organic- (i.e., biogenic or thermogenic) and inorganic-sourced gases. These data provide information about fluid preservation, migration pathways and are used to evaluate the potential for hydrocarbon (i.e. dry gas, wet gas, oil) and non-hydrocarbon (e.g., hydrogen, helium) resources in a basin. These data are collated from Geoscience Australia records, destructive analysis reports (DARs) and well completion reports (WCRs), and the web service will be periodically updated. fluid inclusion fluid inclusion stratigraphy FIS stratigraphy EPSG:4283 CRS:84 110.0 170.0 -45.0 -8.0 text/html text/html