Data

Australian National Radiometric Data Collection

Geoscience Australia
Commonwealth of Australia (Geoscience Australia)
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=https://pid.geoscience.gov.au/dataset/ga/144636&rft.title=Australian National Radiometric Data Collection&rft.identifier=https://pid.geoscience.gov.au/dataset/ga/144636&rft.description=This data collection is comprised of radiometric (gamma-ray spectrometric) surveys acquired across Australia by Commonwealth, State and Northern Territory governments and the private sector with project management and quality control undertaken by Geoscience Australia. The radiometric method measures naturally occurring radioactivity arising from gamma-rays. In particular, the method is able to identify the presence of the radioactive isotopes potassium (K), uranium (U) and thorium (Th). The measured radioactivity is then converted into concentrations of the radioelements K, U and Th in the ground. Radiometric surveys have a limited ability to see into the subsurface with the measured radioactivity originating from top few centimetres of the ground. These surveys are primarily used as a geological mapping tool as changes in rock and soil type are often accompanied by changes in the concentrations of the radioactive isotopes of K, U and Th. The method is also capable of directly detecting mineral deposits. For example, K alteration can be detected using the radiometric method and is often associated with hydrothermal ore deposits. Similarly, the method is also used for U and Th exploration, heat flow studies, and environmental mapping purposes such as characterising surface drainage features. The instrument used in radiometric surveys is a gamma-ray spectrometer. This instrument measures the number of radioactive emissions (measured in counts per second) and their energies (measured in electron volts (eV)). Radiometric data are simultaneously acquired with magnetic data during airborne surveys and are a non-invasive method for investigating near-surface geology and regolith.Maintenance and Update Frequency: annuallyStatement: Source: The data in this collection are airborne surveys conducted from the 1980's onwards by Commonwealth, State and Northern Territory governments and the private sector. Form: The data are point-located (line) or gridded and include metadata and supporting documentation such as operations and processing reports.&rft.creator=Commonwealth of Australia (Geoscience Australia) &rft.date=2021&rft.coverage=westlimit=112.00; southlimit=-44.00; eastlimit=154.00; northlimit=-9.00&rft.coverage=westlimit=112.00; southlimit=-44.00; eastlimit=154.00; northlimit=-9.00&rft_rights=&rft_rights=Creative Commons Attribution 4.0 International Licence&rft_rights=CC-BY&rft_rights=4.0&rft_rights=http://creativecommons.org/licenses/&rft_rights=Australian Government Security ClassificationSystem&rft_rights=https://www.protectivesecurity.gov.au/Pages/default.aspx&rft_rights=WWW:LINK-1.0-http--link&rft_rights=Creative Commons Attribution 4.0 International Licence http://creativecommons.org/licenses/by/4.0&rft_subject=geoscientificInformation&rft_subject=GEOPHYSICS&rft_subject=HVC_144636&rft_subject=HVC - High Value Collection&rft_subject=radiometrics&rft_subject=gamma-ray&rft_subject=spectrometry&rft_subject=spectrometer&rft_subject=uranium&rft_subject=thorium&rft_subject=potassium&rft_subject=airborne&rft_subject=geophysics&rft_subject=Australia-Wide Airborne Geophysical Survey (AWAGS)&rft_subject=radioactive&rft_subject=radioisotope&rft_subject=HVC&rft_subject=Published_External&rft.type=dataset&rft.language=English Access the data
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Creative Commons Attribution 4.0 International Licence
http://creativecommons.org/licenses/by/4.0

Creative Commons Attribution 4.0 International Licence

CC-BY

4.0

http://creativecommons.org/licenses/

Australian Government Security ClassificationSystem

https://www.protectivesecurity.gov.au/Pages/default.aspx

WWW:LINK-1.0-http--link

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Brief description

This data collection is comprised of radiometric (gamma-ray spectrometric) surveys acquired across Australia by Commonwealth, State and Northern Territory governments and the private sector with project management and quality control undertaken by Geoscience Australia. The radiometric method measures naturally occurring radioactivity arising from gamma-rays. In particular, the method is able to identify the presence of the radioactive isotopes potassium (K), uranium (U) and thorium (Th). The measured radioactivity is then converted into concentrations of the radioelements K, U and Th in the ground. Radiometric surveys have a limited ability to see into the subsurface with the measured radioactivity originating from top few centimetres of the ground. These surveys are primarily used as a geological mapping tool as changes in rock and soil type are often accompanied by changes in the concentrations of the radioactive isotopes of K, U and Th. The method is also capable of directly detecting mineral deposits. For example, K alteration can be detected using the radiometric method and is often associated with hydrothermal ore deposits. Similarly, the method is also used for U and Th exploration, heat flow studies, and environmental mapping purposes such as characterising surface drainage features. The instrument used in radiometric surveys is a gamma-ray spectrometer. This instrument measures the number of radioactive emissions (measured in counts per second) and their energies (measured in electron volts (eV)). Radiometric data are simultaneously acquired with magnetic data during airborne surveys and are a non-invasive method for investigating near-surface geology and regolith.

Lineage

Maintenance and Update Frequency: annually
Statement: Source: The data in this collection are airborne surveys conducted from the 1980's onwards by Commonwealth, State and Northern Territory governments and the private sector.

Form: The data are point-located (line) or gridded and include metadata and supporting documentation such as operations and processing reports.

Notes

Purpose
Radiometric surveys measure the radioactivity originating from top few centimetres of the ground. These surveys are primarily used as a geological mapping tool but also have uses in U and Th exploration, heat flow studies, and environmental mapping.

Issued: 28 09 2022

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154,-9 154,-44 112,-44 112,-9 154,-9

133,-26.5

text: westlimit=112.00; southlimit=-44.00; eastlimit=154.00; northlimit=-9.00

Subjects
Australia-Wide Airborne Geophysical Survey (AWAGS) | GEOPHYSICS | HVC | HVC - High Value Collection | HVC_144636 | Published_External | airborne | gamma-ray | geophysics | geoscientificInformation | potassium | radioactive | radioisotope | radiometrics | spectrometer | spectrometry | thorium | uranium |

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Other Information
Geophysical Archive Data Delivery System (GADDS)

uri : https://portal.ga.gov.au/persona/gadds

Identifiers
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