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Radiometric Grid of Australia (Radmap) v4 2019 ratio uranium over thorium

Created 16/10/2025

Updated 16/10/2025

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The uranium over thorium grid is a derivative of the 2019 radiometric or gamma-ray grid of Australia which is a merge of over 600 individual gamma-ray spectrometric surveys. 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 are collected on airborne geophysical surveys conducted by Commonwealth, State and Northern Territory Governments and the private sector. The 2019 uranium over thorium grid has a cell size of about 100 m (0.001 degrees) and is derived from the filtered uranium and thorium grids.

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Additional Info

Field Value
Title Radiometric Grid of Australia (Radmap) v4 2019 ratio uranium over thorium
Language English
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/d3ff04d5-2885-4815-bdc4-a06774bf128b
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 20/04/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        112.7175,
        -43.7615
      ],
      [
        153.6715,
        -43.7615
      ],
      [
        153.6715,
        -9.0005
      ],
      [
        112.7175,
        -9.0005
      ],
      [
        112.7175,
        -43.7615
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Radiometric Grid of Australia (Radmap) v4 2019 ratio uranium over thorium". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/radiometric-grid-of-australia-radmap-v4-2019-ratio-uranium-over-thorium