From Geoscience Australia

GSWA Carnarvon Basin North Thorium Grid Geodetic

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Created 20/01/2025

Updated 20/01/2025

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 89m) and shows thorium element concentration of the Carnarvon Basin North, WA, 2011 in units of parts per million (or ppm). The data used to produce this grid was acquired in 2011 by the WA Government, and consisted of 107266 line-kilometres of data at 400m line spacing and 60m terrain clearance.

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Title GSWA Carnarvon Basin North Thorium Grid Geodetic
Language eng
Licence notspecified
Landing Page https://devweb.dga.links.com.au/data/dataset/800c7bdd-1474-4a6e-b665-8b17b733b99e
Contact Point
Geoscience Australia
clientservices@ga.gov.au
Reference Period 24/07/2011 - 20/10/2011
Geospatial Coverage {"type": "Polygon", "coordinates": [[[112.9863, -25.0133], [114.7872, -25.0133], [114.7872, -21.7463], [112.9863, -21.7463], [112.9863, -25.0133]]]}
Data Portal data.gov.au