Ararat Ballarat thorium grid geodetic

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Created 13/01/2025

Updated 13/01/2025

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 83m) and shows thorium element concentration of the Ararat-Ballarat merge, 1990-1992 in units of parts per million (or ppm). The data used to produce this grid was acquired in 1990 by the VIC Government, and consisted of 51328 line-kilometres of data at a line spacing between 200m and 400m, and 100m terrain clearance.

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Title Ararat Ballarat thorium grid geodetic
Language eng
Licence notspecified
Landing Page https://devweb.dga.links.com.au/data/dataset/63714f3a-dd11-4456-8f6d-b00a9b917008
Contact Point
Geoscience Australia
clientservices@ga.gov.au
Reference Period 05/01/1990 - 27/04/1992
Geospatial Coverage {"type": "Polygon", "coordinates": [[[142.3996, -38.0504], [144.0504, -38.0504], [144.0504, -36.9496], [142.3996, -36.9496], [142.3996, -38.0504]]]}
Data Portal data.gov.au