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.

Full-colour map summarises the major Proterozoic mafic-ultramafic magmatic events in Western Australia. Fifteen events are recognised with four of these (~2420 Ma, ~1850 Ma, ~1300 Ma,~1070 Ma) mineralised (Ni, Cu, Co, PGEs, Ti-V). Inset maps show the distribution of Proterozoic and Archaean rocks, mineral commodities, large igneous provinces, and geochronological data that underpins the main map. Geological Map (1:3,500,000 Scale)

Geoscience Australia's National Gravity Database contains onshore and offshore data from more than 1,200,000 point gravity observations. These data have been collected from gravity surveys dating back to 1937. This repository of gravity information is a valuable national asset with importance to the mineral and petroleum exploration industries, geodesy and the international scientific community. This May 2003 release contains approximately 390,000 more stations than the 2002 release.

The Broken Hill - Menindee point located data set consists of 182 new and 20,514 old gravity stations all with terrain correction values included. The data set is included as a separate directory on the CD-ROM containing the May 2003 release of the National Gravity Database. See GeoCat entry # 47696. New gravity stations were acquired at a spacing of 2km x 2km. Old data are at various station spacings. The pre 2003 gravity data come from existing data held in Geoscience Australia's National Gravity Database. These data are sourced from various surveys that in the past were commissioned by either Geoscience Australia, NSW Dept of Mineral Resources or private industry. All data were used to ground truth airborne gravity data acquired over the same geographic area near Broken Hill.

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Geoscience Australia's National Gravity Database contains data from more than 1,000,000 point gravity observations on the Australian mainland. These data have been collected from 1,814 gravity surveys dating back to 1937. This repository of gravity information is a valuable national asset with importance to the mineral and petroleum exploration industries, geodesy and the international scientific community. This February 2002 release contains approximately 30,000 more stations than the 2001 release.

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GADDS runs the JetStream software package created by Intrepid Geophysics Pty Ltd. GADDS was implemented for web-data delivery of Geoscience Australia's land gravity and airborne survey datasets in both grid and (point/line) vector data formats. GADDS works on geodetic magnetic and gravity grids of continental Australia as well as individual survey magnetic, radiometric and elevation datasets. Gravity point data from Australia is extracted from an Oracle database. The GADDS front-end application was developed in-house at Geoscience Australia by Aaron Sedgmen.