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Curnamona 80m cell thorium grid geodetic

Created 17/10/2025

Updated 17/10/2025

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The radiometric, or gamma-ray spectrometric method, measures the natural variations in the gamma-rays detected near the Earth's surface as the result of the natural radioactive decay of potassium (K), uranium (U) and thorium (Th). The data collected are processed via standard methods to ensure the response recorded is that due only to the rocks in the ground. The results produce datasets that can be interpreted to reveal the geological structure of the sub-surface. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose. This radiometric thorium grid has a cell size of 0.00083 degrees (approximately 86m) and shows thorium element concentration of the Curnamona, SA, Broken Hill Exploration Initiative, 1995 in units of parts per million (or ppm). The data used to produce this grid was acquired in 1995 by the SA Government, and consisted of 62542 line-kilometres of data at a line spacing between 100m and 400m, and 60m terrain clearance.

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Additional Info

Field Value
Title Curnamona 80m cell thorium grid geodetic
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/6b188331-24cc-4159-b983-0be2d2047668
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 04/04/1995 - 08/06/1995
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        139.4887,
        -31.5079
      ],
      [
        141.0112,
        -31.5079
      ],
      [
        141.0112,
        -30.9921
      ],
      [
        139.4887,
        -30.9921
      ],
      [
        139.4887,
        -31.5079
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Curnamona 80m cell thorium grid geodetic". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/curnamona-80m-cell-thorium-grid-geodetic