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MRTAS NW Tasmania ppm thorium grid geodetic

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Created 14/01/2025

Updated 14/01/2025

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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 41m) and shows thorium element concentration of the North West Tasmania, Tas, 2001 (WTRMP Area B) in units of parts per million (or ppm). The data used to produce this grid was acquired in 2001 by the TAS Government, and consisted of 33834 line-kilometres of data at 200m line spacing and 80m terrain clearance.

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Title MRTAS NW Tasmania ppm thorium grid geodetic
Language eng
Licence notspecified
Landing Page https://devweb.dga.links.com.au/data/dataset/973ce945-ea75-4d4e-aa3b-c18f9a41583e
Contact Point
Geoscience Australia
clientservices@ga.gov.au
Reference Period 02/01/2001 - 17/02/2001
Geospatial Coverage {"type": "Polygon", "coordinates": [[[144.5608, -41.397], [146.3763, -41.397], [146.3763, -40.3465], [144.5608, -40.3465], [144.5608, -41.397]]]}
Data Portal data.gov.au