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Leonora thorium grid geodetic

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Created 13/01/2025

Updated 13/01/2025

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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 87m) and shows thorium element concentration of the Leonora, WA, 1991/92 in units of parts per million (or ppm). The data used to produce this grid was acquired in 1992 by the WA Government, and consisted of 10225 line-kilometres of data at 400m line spacing and 60m terrain clearance.

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Title Leonora thorium grid geodetic
Language eng
Licence Not Specified
Landing Page https://devweb.dga.links.com.au/data/dataset/c2ab66d7-bfdd-4861-a323-65fed46853d6
Contact Point
Geoscience Australia
clientservices@ga.gov.au
Reference Period 01/08/1992 - 31/12/1992
Geospatial Coverage
Map data © OpenStreetMap contributors
Data Portal Data.gov.au