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Great Artesian Basin Surat / Clarence-Moreton basins Hydrogeological Boundary

Created 17/10/2025

Updated 17/10/2025

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The approximate location of the Helidon Ridge (proposed name) - a basement ridge likely to define the hydrogeological boundary between the Surat and Clarence-Moreton basins in the GAB. To be used in conjunction with dataset 'Groundwater divide in the Hutton Sandstone boundary' (Geoscience Australia, Catalogue #77024, 2013) to define the easternmost boundary of the GAB. The approximate location of the Helidon ridge was interpreted from a GOCAD model layer of Base of Hutton Sandstone surface (Geoscience Australia dataset, Catalogue #76025, 2013). This data set provides an approximate location of Helidon ridge as a polygon in Shapefile format. The polygon represents the area in which the boundary is likely to be located, as the exact location is open to interpretation. Data is available in Shapefile format This data set was used in: Figure 5.3 in Ransley TR and Smerdon BD (eds) (2012) Hydrostratigraphy, hydrogeology and system conceptualisation of the Great Artesian Basin. A technical report to the Australian Government from the CSIRO Great Artesian Basin Water Resource Assessment. CSIRO Water for a Healthy Country Flagship, Australia. Figure 5.3 in Smerdon BD and Ransley TR (eds) (2012) Water resource assessment for the Surat region. A report to the Australian Government from the CSIRO Great Artesian Basin Water Resource Assessment. CSIRO Water for a Healthy Country Flagship, Australia Figure 14 in Smerdon BD, Marston FM and Ransley TR (2012) Water resource assessment for the Surat region. Summary of a report to the Australian Government from the CSIRO Great Artesian Basin Water Resource Assessment. CSIRO Water for a Healthy Country Flagship, Australia. 16pp. This dataset and associated metadata can be obtained from www.ga.gov.au, using catalogue number 75836.

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Additional Info

Field Value
Title Great Artesian Basin Surat / Clarence-Moreton basins Hydrogeological Boundary
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/2e1af8c1-75c0-4673-9d25-844547d42b50
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 22/04/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        151.778,
        -28.147
      ],
      [
        152.245,
        -28.147
      ],
      [
        152.245,
        -27.435
      ],
      [
        151.778,
        -27.435
      ],
      [
        151.778,
        -28.147
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Great Artesian Basin Surat / Clarence-Moreton basins Hydrogeological Boundary". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/great-artesian-basin-surat-clarence-moreton-basins-hydrogeological-boundary