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The Cooper Basin Region 3D Map Version 1: A Search for Hot Buried Granites

Created 17/10/2025

Updated 17/10/2025

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A 3D map of the Cooper Basin region has been produced over an area of 300 x 450 km to a depth of 20 km (Figure 1). The 3D map was constructed from 3D inversions of gravity data using geological data to constrain the inversions. It delineates regions of low density within the basement of the Cooper/Eromanga Basins that are inferred to be granitic bodies. This interpretation is supported by a spatial correlation between the modelled bodies and known granite occurrences. The 3D map, which also delineates the 3D geometries of the Cooper and Eromanga Basins, therefore incorporates both potential heat sources and thermally insulating cover, key elements in locating a geothermal play. This study was conducted as part of Geoscience Australia's Onshore Energy Security Program, Geothermal Energy Project. This 3D data release constitutes the first version of the Cooper Basin region 3D map. A future data release (version 2 of the 3D map) will extend the area to the north and east to encompass the entire Queensland extension of the Cooper Basin. The version 2 3D map will incorporate more detailed 3D models of the Cooper and Eromanga Basins by delineating the major internal sedimentary sequences within the basins. Thermal properties will then be incorporated into the 3D map to produce a 3D thermal model. The goal is to produce a 3D thermal model of the Cooper Basin region that not only matches existing temperature and heat flow data in the region, but also predicts regions of high heat flow and elevated temperatures in regions where no heat flow or temperature data exists.

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Additional Info

Field Value
Title The Cooper Basin Region 3D Map Version 1: A Search for Hot Buried Granites
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/en/dataset/bbcc7a0f-9594-4d4f-85a7-0177644f4169
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 20/04/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        139.5,
        -29.0
      ],
      [
        142.5,
        -29.0
      ],
      [
        142.5,
        -25.0
      ],
      [
        139.5,
        -25.0
      ],
      [
        139.5,
        -29.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "The Cooper Basin Region 3D Map Version 1: A Search for Hot Buried Granites". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/the-cooper-basin-region-3d-map-version-1-a-search-for-hot-buried-granites