World Political Boundaries. The world boundaries dataset is comprised of free data sources from around the web. Made with Natural Earth (http://www.naturalearthdata.com/). Contains the Admin 0 - Countries cultural layer.

AUSGeoid98 data files contain a 2 minute grid of AUSGeoid98 data covering the Australian region, which you can use to interpolate geoid-ellipsoid separations for the positions required.You can use your own interpolation software, or you can use Geoscience Australia's Windows Interpolation software (Winter). The data files are text files in a standard format that cover the same area as standard topographic map areas. Files covering both 1:250,000 (approximately 100 x 150 km) and 1:1,000,000 (approximately 400 x 600 km) map areas are available. There is a 4 minute overlap on all sides of each area. Data format: AUSGeoid98 data files have a header record at the start of each file, to distinguish them from the superseded AUSGeoid93 data files. AUSGeoid98 data files show the geoid-ellipsoid separation to 3 decimal places, while the superseded AUSGeoid93 data files showed only 2 decimal places. AUSGeoid98 deflections of the vertical were computed from the geoid-ellipsoid separation surface, while the AUSGeoid93 deflections of the vertical were computed from OSU91A.

AUSGeoid98 data files contain a 2 minute grid of AUSGeoid98 data covering the Australian region, which you can use to interpolate geoid-ellipsoid separations for the positions required.You can use your own interpolation software, or you can use Geoscience Australia's Windows Interpolation software (Winter). The data files are text files in a standard format that cover the same area as standard topographic map areas. Files covering both 1:250,000 (approximately 100 x 150 km) and 1:1,000,000 (approximately 400 x 600 km) map areas are available. There is a 4 minute overlap on all sides of each area. Data format: AUSGeoid98 data files have a header record at the start of each file, to distinguish them from the superseded AUSGeoid93 data files. AUSGeoid98 data files show the geoid-ellipsoid separation to 3 decimal places, while the superseded AUSGeoid93 data files showed only 2 decimal places. AUSGeoid98 deflections of the vertical were computed from the geoid-ellipsoid separation surface, while the AUSGeoid93 deflections of the vertical were computed from OSU91A.

AUSGeoid98 data files contain a 2 minute grid of AUSGeoid98 data covering the Australian region, which you can use to interpolate geoid-ellipsoid separations for the positions required.You can use your own interpolation software, or you can use Geoscience Australia's Windows Interpolation software (Winter). The data files are text files in a standard format that cover the same area as standard topographic map areas. Files covering both 1:250,000 (approximately 100 x 150 km) and 1:1,000,000 (approximately 400 x 600 km) map areas are available. There is a 4 minute overlap on all sides of each area. Data format: AUSGeoid98 data files have a header record at the start of each file, to distinguish them from the superseded AUSGeoid93 data files. AUSGeoid98 data files show the geoid-ellipsoid separation to 3 decimal places, while the superseded AUSGeoid93 data files showed only 2 decimal places. AUSGeoid98 deflections of the vertical were computed from the geoid-ellipsoid separation surface, while the AUSGeoid93 deflections of the vertical were computed from OSU91A.

This record contains the results of a project to develop a comprehensive GIS package focussed on the igneous rocks of northern Queensland (16.5 to 21 degrees S, 142.0 to 147.75 degrees E). The contracted work was undertaken as a joint project between the Australian Geological Survey Organisation (AGSO), Placer Exploration Ltd and the Queensland Department of Minerals and Energy (QDME). The aims of the contract work111were to: - Digitise all available geological maps of north Queensland and construct a multi-layeredGIS package of the igneous rocks of the designated region. - Characterise all igneous units in the region based on available petrographic and geochemical data (e.g. igneous type, degree of oxidation, degree of fractionation), andincorporate this classification as an ARC/INFO database. - Incorporate AGSO's ROCKCHEM and MINLOC data as ARC/INFO databases. - Fully document the GIS package, including a comprehensive bibliography of allclassified igneous rock units of the region.

AGSO and in collaboration with Nigel Press and Associates, AUSLIG and Radarsat International (RSI) have undertaken an interpretative study of hydrocarbon migration and seepage in the offshore Bonaparte and Browse Basins, North-Western Australia. The study used Radarsat images, detailed water column Geochemical Sniffer and Airborne Laser Fluorosensor data, acquired over a number of many years. The intrepertations derived from these seepage technologies were compared and contrasted, and then intergrated with a wide variety of petroleum geological information, including regional seismic data, isopach maps, key reservoirs, source and sealing units and fault maps. All the data and many more have been placed into a 'regional' ArcView GIS associated with the final reports, Acrobat and Powerpoint files.

The product is a digital representation of the boundaries and names of Surface Water Management Areas defined by State and Territory water management agencies for use in national water resources reporting. Surface Water Management Areas generally correspond to Australia`s River Basin boundaries, however in some States and Territories the Areas are a sub-set or a major part of Australia`s River Basins. The dataset is produced by the National Land and Water Resources Audit (NLWRA) and distributed by Geoscience Australia. The data is suitable for GIS applications. Free online. Available in ArcInfo Export, ArcView Shapefile and MapInfo mid/mif. Product Specifications Coverage: Australia Currency: November 2000 Coordinates: Geographical Datum: GDA94 Format: ArcInfo Export, ArcView Shapefile and MapInfo mid/mif Medium: Free online and CD-ROM (fee applies)

GEODATA Coast 100K 2004 is a vector representation of the topographic features depicting Australia`s coastline, and State and Territory borders. Data are derived from the 1:100,000 scale National Topographic Map Series and contains: -Coastline features (as determined by Mean High Water) -Survey Monument Points (survey points used to define State/Territory borders) -State and Territory land borders -Island features (please note: Australian external territories are not shown). The coastline includes the main outline of the land and includes bays, the outer edge of mangroves and closes off narrow inlets and watercourses at or near their mouths. Features of the 2004 release include: -Change of datum to GDA94 -Provision of a national coverage in addition to State/Territory coverages; and Additional points on the SA/VIC border. NOTE: The use of survey data in GEODATA COAST 100K 2004 does not imply that data are suitable for any legal interpretation of State/Territory borders. Product Specifications: Coverage: Supplied as separate State and Territory layers, along with a complete national layer Currency: Varies and is based on reliability date of 1:100,000 scale map Coordinates: Geographical Datum: GDA94 Format: ArcInfo Export, ArcView Shapefile and Mapinfo mid/mif Medium: Free online

GEODATA TOPO 5M 2004 is a national seamless data product aimed at regional or national applications. It is a vector representation of the Australian landscape as represented on the Geoscience Australia 5 million general reference map and is suitable for GIS applications. Offshore and sand ridge layers were sourced from scanning of the original 1:5 million map production material. The remaining nine layers were derived from the GEODATA TOPO 2.5M 2003 dataset. Free online. Available in ArcInfo Export, ArcView Shapefile and MapInfo mid/mif. Product Specifications: Themes: consists of eleven layers: built-up areas; contours; drainage; framework; localities; offshore; rail transport; road transport; sand ridges, spot heights and waterbodies Coverage: Australia Currency: 2004 Coordinates: Geographical Datum: GDA94, AHD Format: ArcInfo Export, ArcView Shapefile and MapInfo mid/mif Medium: Free online

This grid represents gravity anomalies of the Australian region. The grid combines accurate onshore gravity measurements, with satellite data over the offshore region. The cell values represent simple Bouguer anomalies at a density of 2.67 tonnes per cubic metre onshore and free-air anomalies offshore. The grid cell size is 0.5 minutes of arc, which is equivalent to about 800 metres.