AB7FD3FD-0B90-4EDB-8F99-CC5B2831CAB3 eng utf8 dataset dataset Department of Mines, Petroleum and Exploration Department of Mines, Petroleum and Exploration - Geological Survey and Resource Strategy Division Digital Data Administrator 100 Plain Street East Perth Western Australia 6004 Australia gsd.dda@dmpe.wa.gov.au pointOfContact 2026-06-29 ANZLIC Metadata Profile: An Australian/New Zealand Profile of AS/NZS ISO 19115:2005, Geographic information - Metadata 1.1 7844 1:100 000 State interpreted bedrock geology of Western Australia 2017-07-01 creation 2026-06-30 publication The digital '1:100 000 State interpreted bedrock geology of Western Australia' comprises three layers: the primary 1:100 000 State interpreted bedrock geology, the 1:100 000 State interpreted bedrock geology lines and the 1:100 000 State interpreted bedrock linear structure layer. The product covers approximately 40% of Western Australia, with a focus on areas of exposed Archean and Proterozoic bedrock. The linear structure layer refers primarily to pre-Cenozoic bedrock structures. This compilation is based on Geological Survey of Western Australia's (GSWA) published Geological Information Series (GIS), Geological Exploration Packages (GEP) and digital compilation layers for which digital 1:100 000 and 1:250 000 interpreted bedrock geology is available. Geological interpretation in these packages is based on extensive fieldwork, petrology, geochemistry, geochronology, interpretation of geophysical datasets (magnetics, radiometrics and gravity), remote sensing imagery (ASTER and LANDSAT), seismic and magnetotelluric profiles, drilling, and previously published and unpublished geological mapping. Apart for minor topological corrections, the spatial integrity of the source packages is maintained. For adjacent, but separately compiled packages, seamless interpretation along the edges of project areas has not been applied to preserve the spatial integrity of the source information. The nomenclature and hierarchy for the lithostratigraphic units in the polygon and line layers are based on weekly updates from the Explanatory Notes System (ENS). To provide the most up-to-date geological information for the units in question, attribution from the original source is modified to remove superseded stratigraphic units, display correct stratigraphic relationships and include more recent geochronology. The source package of each feature is captured as an additional attribute field. Individual packages are available via the Department of Mines, Petroleum and Exploration's (DMPE) eBookshop <www.dmpe.wa.gov.au/ebookshoop>. Data are held in GDA2020 decimal degrees. Geological Survey of Western Australia 2026, 1:100 000 State interpreted bedrock geology of Western Australia, June 2026 update: Geological Survey of Western Australia, digital data layer, www.dmp.wa.gov.au/geoview. Compilers of geology: O Blay, HN Cutten, HM Howard, TJ Ivanic, DM Martin, R Quentin de Gromard, A Riganti, J Sapkota, CV Spaggiari and I Zibra onGoing Department of Mines, Petroleum and Exploration Department of Mines, Petroleum and Exploration - Geological Survey and Resource Strategy Division Chief Geoscientist 100 Plain Street East Perth Western Australia 6004 Australia chief.geoscientist@dmpe.wa.gov.au pointOfContact asNeeded *.xml Unknown Western Australia theme ANZLIC Jurisdictions 2008-10-29 revision Version 2.1 2008-10-29 http://asdd.ga.gov.au/asdd/profileinfo/anzlic-jurisdic.xml#anzlic-jurisdic ANZLIC the Spatial Information Council custodian GEOSCIENCES-Geology INDUSTRY-Mining MINERALS ENERGY-Petroleum theme ANZLIC Search Words 2008-05-16 revision Version 2.1 2008-05-16 http://asdd.ga.gov.au/asdd/profileinfo/anzlic-theme.xml#anzlic-theme ANZLIC the Spatial Information Council custodian unclassified Subject to Licence_CCBY4.pdf copyright license copyright license vector 100000 eng utf8 geoscientificInformation 112 129 -36 -12 Department of Mines, Petroleum and Exploration Department of Mines, Petroleum and Exploration - Geological Survey and Resource Strategy Division Digital Data Administrator 100 Plain Street East Perth Western Australia 6004 Australia gsd.dda@dmpe.wa.gov.au distributor ESRI File Geodatabase, ESRI shapefile, MapInfo Tab file, QGIS layer files ESRI ArcGIS Pro 3.1 layer files, MapInfo 10 and QGIS 3.28 https://dasc.dmirs.wa.gov.au Data and Software Centre 1:100 000 State interpreted bedrock geology of Western Australia The digital '1:100 000 State interpreted bedrock geology of Western Australia' comprises three layers: the primary 1:100 000 State interpreted bedrock geology, the 1:100 000 State interpreted bedrock geology lines and the 1:100 000 State interpreted bedrock linear structure layer. The product covers approximately 40% of Western Australia, with a focus on areas of exposed Archean and Proterozoic bedrock. The linear structure layer refers primarily to pre-Cenozoic bedrock structures. This compilation is based on Geological Survey of Western Australia's (GSWA) published Geological Information Series (GIS), Geological Exploration Packages (GEP) and digital compilation layers for which digital 1:100 000 and 1:250 000 interpreted bedrock geology is available. Geological interpretation in these packages is based on extensive fieldwork, petrology, geochemistry, geochronology, interpretation of geophysical datasets (magnetics, radiometrics and gravity), remote sensing imagery (ASTER and LANDSAT), seismic and magnetotelluric profiles, drilling, and previously published and unpublished geological mapping. Apart for minor topological corrections, the spatial integrity of the source packages is maintained. For adjacent, but separately compiled packages, seamless interpretation along the edges of project areas has not been applied to preserve the spatial integrity of the source information. The nomenclature and hierarchy for the lithostratigraphic units in the polygon and line layers are based on weekly updates from the Explanatory Notes System (ENS). To provide the most up-to-date geological information for the units in question, attribution from the original source is modified to remove superseded stratigraphic units, display correct stratigraphic relationships and include more recent geochronology. The source package of each feature is captured as an additional attribute field. Individual packages are available via the Department of Mines, Petroleum and Exploration's (DMPE) eBookshop <www.dmpe.wa.gov.au/ebookshoop>. Data are held in GDA2020 decimal degrees. download dataset dataset publication Accuracy of attribute information in this dataset is estimated at 98% true dataset dataset publication Data were assessed against digital published map work in individual project packages true dataset dataset publication The datasets are complete and have been verified true dataset dataset Sources for the 1:100 000 State interpreted bedrock geology of Western Australia are published GIS and GEP packages for which digital 1:100 000 and 1:250 000 interpreted bedrock geology are available. Mapping project update details are available in the accompanying change log: https://dasc.dmirs.wa.gov.au/download/file/5197. Moderate levels of reliability apply to areas where geology is predominantly based on interpretation of geophysical datasets (magnetics, radiometrics and gravity), remote sensing imagery (ASTER and LANDSAT), seismic and magnetotelluric profiles and drilling, i.e. Granites-Tanami and Arunta Orogens, Albany-Fraser Orogen, and southwest Yilgarn Craton. The minimum areas, lengths and widths of geological features conform to GSWA GIS standards for 1:100 000 scale. The nomenclature and hierarchy for the lithostratigraphic units are based on the GSWA Explanatory Notes System, a database that incorporates a logically structured, current summary of the geology of Western Australia, based on the most recent geological data and interpretation. dataset dataset publication Geological themes in the original GIS/GEP packages and data layers were captured at a compilation scale of 1:25 000 to 1:100 000. All layers have been optimized for display at the nominal scale; viewing at smaller scales will degrade resolution, whereas larger scales will degrade accuracy. true unclassified copyright license copyright license