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National Geochemical Survey of Australia: Comparison of Geochemical and Airborne Radiometric Data

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Created 20/01/2025

Updated 20/01/2025

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The National Geochemical Survey of Australia (NGSA) provides the first national coverage of multi-element chemistry at a continental scale. The NGSA data is an important complement to other national-scale geological and geophysical datasets, particularly the Radiometric Map of Australia. The Radiometric Map of Australia shows potassium (K) measured directly from gamma-rays emitted when 40K decays to argon (40Ar), whereas thorium (Th) and uranium (U) do not emit gamma-rays. Instead, their abundances are inferred indirectly by measuring gamma-ray emissions associated with parent radionuclides (thallium-208 for Th, and bismuth-214 for U) within their radioactive decay chains. Airborne-derived grids provide a continuous prediction of these radioelements across the Australian landscape. In contrast, the NGSA data provide a series of precise single point geochemical measurements of surface (0-10 cm) and near-surface (~60-80 cm depth) unconsolidated catchment outlet sediments.

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Title National Geochemical Survey of Australia: Comparison of Geochemical and Airborne Radiometric Data
Language eng
Licence notspecified
Landing Page https://devweb.dga.links.com.au/data/dataset/59924ac8-7086-403e-8f43-4217c2f41c43
Contact Point
Geoscience Australia
clientservices@ga.gov.au
Reference Period 20/04/2018
Geospatial Coverage {"type": "Polygon", "coordinates": [[[108.0, -44.0], [156.0, -44.0], [156.0, -8.0], [108.0, -8.0], [108.0, -44.0]]]}
Data Portal data.gov.au

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This dataset was originally found on data.gov.au "National Geochemical Survey of Australia: Comparison of Geochemical and Airborne Radiometric Data". Please visit the source to access the original metadata of the dataset:
https://devweb.dga.links.com.au/data/dataset/national-geochemical-survey-of-australia-comparison-of-geochemical-and-airborne-radiometric-dat

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