From Geoscience Australia
JSON format icon JSON RDF format icon RDF ISO19115-3 XML

GSWA Boorabbin Lake Johnston ppm Thorium Grid Geodetic

Created 16/10/2025

Updated 16/10/2025

JSON format icon JSON RDF format icon RDF ISO19115-3 XML

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 0.0005 degrees (approximately 51m) and shows thorium element concentration of the Southern Yilgarn (Boorabbin, Lk Johnstn, Sthn Cross, W Kal.), WA, 2004 in units of parts per million (or ppm). The data used to produce this grid was acquired in 2004 by the WA Government, and consisted of 83101 line-kilometres of data at a line spacing between 200m and 400m, and 60m terrain clearance.

Files and APIs

Tags

Additional Info

Field Value
Title GSWA Boorabbin Lake Johnston ppm Thorium Grid Geodetic
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/d439ef5a-1589-4782-b7ad-76c5654b7e9b
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 13/10/2004 - 17/02/2005
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        119.679,
        -33.0392
      ],
      [
        121.69,
        -33.0392
      ],
      [
        121.69,
        -30.9762
      ],
      [
        119.679,
        -30.9762
      ],
      [
        119.679,
        -33.0392
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "GSWA Boorabbin Lake Johnston ppm 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/gswa-boorabbin-lake-johnston-ppm-thorium-grid-geodetic