WMS The Surficial Geology of the Vesthold Hills web map service depicts the surficial material units based on the Geological Survey of Canada Surficial Data Model. On the coast of Prydz Bay, the region is one of the largest ice-free areas in Antarctica. Surficial geology mapping at 1:2000 was undertaken with field observations in the 2018/19 and 2019/20 summer seasons as well as aerial photography and satellite imagery interpretation. Units are based on the Geological Survey of Canada Surficial Data Model Version 2.4.0 (Deblonde et al 2019). web service Australia sedimentology glaciology quaternary environments geomorphology and regolith and landscape evolution earth sciences surface processes Geoscience Australia Postal

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Canberra ACT 2601 Australia +61 2 6249 9111 clientservices@ga.gov.au NONE © Commonwealth of Australia (Geoscience Australia) 2022. This product is released under the Creative Commons Attribution 4.0 International Licence. http://creativecommons.org/licenses/by/4.0/legalcode 4096 4096 application/vnd.ogc.wms_xml text/xml image/bmp image/jpeg image/tiff image/png image/png8 image/png24 image/png32 image/gif image/svg+xml application/vnd.esri.wms_raw_xml application/vnd.esri.wms_featureinfo_xml application/vnd.ogc.wms_xml application/geo+json text/xml text/html text/plain application/vnd.ogc.sld+xml application/vnd.ogc.se_xml application/vnd.ogc.se_inimage application/vnd.ogc.se_blank text/xml XML EPSG:4283 EPSG:4326 CRS:84 EPSG:3857 EPSG:28348 EPSG:28349 EPSG:28350 EPSG:28351 EPSG:28352 EPSG:28353 EPSG:28354 EPSG:28355 EPSG:28356 EPSG:28357 EPSG:28358 EPSG:32748 EPSG:32749 EPSG:32750 EPSG:32751 EPSG:32752 EPSG:32753 EPSG:32754 EPSG:32755 EPSG:32756 EPSG:32757 EPSG:32758 EPSG:3031 EPSG:3032 EPSG:102100 77.528175 78.968604 -68.791104 -68.332224 Geologic_Unit_Polygons This GIS dataset includes 16 surficial material units. Unit classifications are based on the Geological Survey of Canada Surficial Data Model Version 2.4.0 (Deblonde et al. 2019) because of its focus on glacial processes and glaciated environments. Units are defined based on the genesis of their dominant materials and their morphology, depositional environment, and thickness. Numbers denote subcategories. Most unit boundaries are gradational. Unit boundaries were mapped from aerial photography (Australian Antarctic Data Centre 1997), satellite imagery (DigitalGlobe Inc 2018), and field observations. The moraine complex (Tm) and Sørsdal Formation (Tv/GMo) boundaries are based on published boundaries (Australian Antarctic Data Centre 1997; Harris 1999) and have been refined further with remote sensing interpretation. Fieldwork was conducted in the 2018/19 and 2019/20 summer seasons, supported by the Australian Antarctic Program under Australian Antarctic Science Project 4393. Mapping was completed at 1:2000 and is best viewed in a digital format. EPSG:4283 EPSG:4326 CRS:84 EPSG:3857 EPSG:28348 EPSG:28349 EPSG:28350 EPSG:28351 EPSG:28352 EPSG:28353 EPSG:28354 EPSG:28355 EPSG:28356 EPSG:28357 EPSG:28358 EPSG:32748 EPSG:32749 EPSG:32750 EPSG:32751 EPSG:32752 EPSG:32753 EPSG:32754 EPSG:32755 EPSG:32756 EPSG:32757 EPSG:32758 EPSG:3031 EPSG:3032 EPSG:102100 77.528175 78.968604 -68.791104 -68.332224 text/html Samples The Geoscience Australia Geological Observations and Samples database contains locations, geological observations, and descriptions of physical samples (specimens) from field sites, measured sections and boreholes associated with Geoscience Australia geological mapping surveys in Australia, its surrounds, and Antarctica since the 1960's. Descriptions include information on lithology, stratigraphy, alteration, structural measurements, and many other geological attributes. This feature class is a subset of the database for observations used in creating this surficial geology map. EPSG:4283 EPSG:4326 CRS:84 EPSG:3857 EPSG:28348 EPSG:28349 EPSG:28350 EPSG:28351 EPSG:28352 EPSG:28353 EPSG:28354 EPSG:28355 EPSG:28356 EPSG:28357 EPSG:28358 EPSG:32748 EPSG:32749 EPSG:32750 EPSG:32751 EPSG:32752 EPSG:32753 EPSG:32754 EPSG:32755 EPSG:32756 EPSG:32757 EPSG:32758 EPSG:3031 EPSG:3032 EPSG:102100 77.528175 78.968604 -68.791104 -68.332224 text/html Field_Observations The Geoscience Australia Geological Observations and Samples database contains locations, geological observations, and descriptions of physical samples (specimens) from field sites, measured sections and boreholes associated with Geoscience Australia geological mapping surveys in Australia, its surrounds, and Antarctica since the 1960's. Descriptions include information on lithology, stratigraphy, alteration, structural measurements, and many other geological attributes. This feature class is a subset of the database for observations used in creating this surficial geology map. EPSG:4283 EPSG:4326 CRS:84 EPSG:3857 EPSG:28348 EPSG:28349 EPSG:28350 EPSG:28351 EPSG:28352 EPSG:28353 EPSG:28354 EPSG:28355 EPSG:28356 EPSG:28357 EPSG:28358 EPSG:32748 EPSG:32749 EPSG:32750 EPSG:32751 EPSG:32752 EPSG:32753 EPSG:32754 EPSG:32755 EPSG:32756 EPSG:32757 EPSG:32758 EPSG:3031 EPSG:3032 EPSG:102100 77.528175 78.968604 -68.791104 -68.332224 text/html