Contains TIFF images of airborne magnetics data obtained by the Australian Geological Survey Organisation (AGSO), the Geological Survey of Victoria (GSV) and various companies.

Biosiliceous sediments sampled from a submarine valley system on the continental shelf of East Antarctica contain intervals of ripple cross-lamination interspersed with massively bedded units. Based on radiocarbon dates from one core collected on the Mac.Robertson Shelf, the most intensely cross-laminated sediments were deposited between 6 000 and 3 500 years before the present, with isolated cross-laminae deposited at other times in the Holocene.

AGSO Record 2000/45 is a report of the results of specialist structural geological studies in the North Pilbara between 1997-2000 and, for the first time, this report provides a comprehensive synthesis of the structural evolution of the resource-rich North Pilbara Craton. A print, CD-ROM, and web based output. The report can be viewed with a standard web browser. Traditionally, the science of structural geology is presented in a one-dimensional printed text document format with accompanying maps, drawings, and images referred to from the text at appropriate points. This approach creates a problem in communication, as structural geology is four dimensional (the three spatial dimensions and time). The report is structured so that the new information can be accessed in three different ways. 1) a 'standard' way where the text is arranged chronologically and where the user can skip to sections of interest by embedded hyperlinks; 2) geographical regions on a map with hyperlinked text explanations, maps, and images, and; 3) time-based break up of the text (by structural events eg D1, D2 etc) so that the same event can be compared across regions. A printable version is also available on the CD-ROM. Over 200 scanned photographs are located spatially on active maps so the user can see the geology described in their correct spatial position and in relation to other areas. This provides a 'virtual' fieldtrip for the user, who can decide where they want to go in the report. The report can be viewed with the standard web browser.

This product is the single largest AGSO funded stream sediment geochemical data set available in Australia. The data covers roughly 80 000 square kilometres of Proterozoic and Phanerozoic north Queensland and contains 235 914 analyses of 8752 samples. This product also includes PDF files of the associated reports and atlases.

Mapping of outcrop geology on Leonora 1:100 000 map sheet in the Eastern Goldfields, Western Australia, as part of the National Geoscience Mapping Accord (NGMA). Briefly, mapping consists of geological boundaries/units, faults, fractures, folds, veins, dykes, joints, linears, marker beds, trends, structural measurements, and mineral deposits.

Geoscience Australia, ACRES distribute Landsat Multispectral Scanner (MSS), Thematic Mapper (TM) and Enhanced Thematic Mapper Plus (ETM+) data for a series of epochs or time frames covering Australia. The first epoch is 1972. These data have been produced and provided by the Australian Greenhouse Office (AGO). AGO use the data in their National Carbon Accounting System for monitoring land clearing and revegetation. This data is only available through ACRES and ACRES Landsat Distributors, and not through the AGO. More information is available at <a href="http://www.ga.gov.au/acres/prod_ser/agosuite.jsp">http://www.ga.gov.au/acres/prod_ser/agosuite.jsp</a> This data is available in 1:1M tiles or as a full continental Mosaic. Tiles areas are available at: <a href="http://www.ga.gov.au/acres/prod_ser/agotilemap.jsp">http://www.ga.gov.au/acres/prod_ser/agotilemap.jsp</a>

National map which identifies Australia's major mines and mineral deposits by deposit type overlayed on a grey-scale magnetic image of the continent. Complements the 2nd edition AGSO-MCA map released in April 2000 (Catalog # 33045).

The product comprises digital outcrop geology and interpreted basement geology layers in ArcInfo, MapInfo and ArcView formats. The data were compiled from geological mapping of the Bogan Gate 100K sheet from 1995 to 1999 by the NSW Geological Survey and AGSO under the NGMA. The data layers are a subset of the Forbes 250K sheet GIS data package.

AGSO's northwest Australian margin project (NWAM) aims to provide a high level understanding of the geological framework of the entire northwest margin of the continent, with particular emphasis on the crustal and basin architecture. The following studies are currently addressing these objectives: 1) ArcView GIS, 2) Potential field and bathymetric grids (2nd version), 3) Regional deep seismic re-interpretation, and 4) Ocean-bottom seismograph velocity models.

Assessment of mineral potential in the Regional Forest Agreement Areas (RFAs) required collating mineral potential tract maps of individual deposit styles to produce composite, cumulative and weighted composite and cumulative maps. To achieve that an Avenue-script based ArcView extension was created to combine grids of mineral potential tract maps. The grids were combined to generate maps which showed either the highest (weighted or non-weighted) or cumulated (weighted or non-weighted) values. Resources and Advice Decision Support System (RADSS) combines features of the ArcView extension used in mineral potential assessments in RFAs and ASSESS. It is an ArcView extension with a 'Wizard'-like main dialog that leads the user through the process of creating an output. The system has the capacity to combine GIS-layers (raster and vector) to produce various mineral potential and other suitability maps.