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Parkes 1 100k 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 0.00042 degrees (approximately 43m) and shows thorium element concentration of the Forbes Detail, NSW, 1993 in units of parts per million (or ppm). The data used to produce this grid was acquired in 1993 by the NSW Government, and consisted of 49055 line-kilometres of data at a line spacing between 200m and 400m, and 100m terrain clearance.

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Title Parkes 1 100k thorium grid geodetic
Language eng
Licence notspecified
Landing Page https://devweb.dga.links.com.au/data/dataset/2b67f5e5-4754-47a5-9ccf-617c5494cb3c
Contact Point
Geoscience Australia
clientservices@ga.gov.au
Reference Period 02/03/1993 - 09/05/1993
Geospatial Coverage {"type": "Polygon", "coordinates": [[[147.9938, -33.3385], [148.5117, -33.3385], [148.5117, -32.9891], [147.9938, -32.9891], [147.9938, -33.3385]]]}
Data Portal data.gov.au