Data

Gairdner - U equivalent concentration grid (AWAGS, no nasvd)

Geoscience Australia
Geophysical Acquisition & Processing Section
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/144966&rft.title=Gairdner - U equivalent concentration grid (AWAGS, no nasvd)&rft.identifier=https://pid.geoscience.gov.au/dataset/ga/144966&rft.description=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. The Geological Survey of South Australia commissioned the Gawler Craton Airborne Survey (GCAS) as part of the PACE Copper initiative. The airborne geophysical survey was flown over parts of the Gawler Craton in South Australia. The program was designed to capture new baseline geoscientific data to provide further information on the geological context and setting of the area for mineral systems (http://energymining.sa.gov.au/minerals/geoscience/pace_copper/gawler_craton_airborne_survey). This radiometric uranium grid has a cell size of 0.0004 degrees (approximately 41m) and shows uranium element concentration of the Gairdner Airborne Magnetic Radiometric and DEM survey, SA, 2018 in units of parts per million (or ppm). The data used to produce this grid was acquired in 2018 by the SA Government, and consisted of 104788 line-kilometres of data at 200m line spacing and 60m terrain clearance. To constrain long wavelengths in the grid, an independent data set, the Australia-wide Airborne Geophysical Survey (AWAGS) airborne magnetic data, was used to control the base levels of the survey grid.Maintenance and Update Frequency: notPlannedStatement: This Gairdner - U equivalent concentration grid (AWAGS, no nasvd) is an airborne-derived radiometric uranium grid for the Gairdner Airborne Magnetic Radiometric and DEM survey, SA, 2018. The Geological Survey of South Australia commissioned the Gawler Craton Airborne Survey (GCAS) as part of the PACE Copper initiative. The airborne geophysical survey was flown over parts of the Gawler Craton in South Australia. The program was designed to capture new baseline geoscientific data to provide further information on the geological context and setting of the area for mineral systems (http://energymining.sa.gov.au/minerals/geoscience/pace_copper/gawler_craton_airborne_survey). The survey was acquired under the project No. 1309 for the geological survey of SA. The grid has a cell size of 0.0004 degrees (approximately 41m). A total of 104788 line-kilometres of data at a line spacing of 200m and 60m terrain clearance were acquired to produce this grid. This radiometric uranium grid shows uranium element concentration of the Gairdner Airborne Magnetic Radiometric and DEM survey, SA, 2018 in units of parts per million (or ppm). To constrain long wavelengths in the grid, an independent data set, the Australia-wide Airborne Geophysical Survey (AWAGS) airborne magnetic data, was used to control the base levels of the survey grid (Milligan et al., 2009). This survey grid is essentially levelled to AWAGS. Details of the specifications of individual airborne surveys can be found in the Fourteenth Edition of the Index of Airborne Geophysical Surveys (Percival, 2014). This Index is also available online at http://pid.geoscience.gov.au/dataset/79134. References: Milligan, P.R., Minty, B.R.S., Richardson, M. & Franklin, R., 2009. The Australia-wide Airborne Geophysical Survey accurate continental magnetic coverage. Preview, No. 138, p. 1-128, Percival, P.J., 2014. Index of airborne geophysical surveys (Fourteenth Edition).&rft.creator=Geophysical Acquisition & Processing Section &rft.date=2020&rft.coverage=westlimit=134.9958; southlimit=-32.6746; eastlimit=136.5046; northlimit=-31.491; projection=GDA94 (EPSG:4283)&rft.coverage=westlimit=134.9958; southlimit=-32.6746; eastlimit=136.5046; northlimit=-31.491; projection=GDA94 (EPSG:4283)&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=(c) Commonwealth of Australia (Geoscience Australia) and Department for Energy and Mining, Government of South Australia 2020&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=EARTH SCIENCES&rft_subject=NCI&rft_subject=Earth sciences&rft_subject=geophysics&rft_subject=grid&rft_subject=Australia&rft_subject=SA&rft_subject=survey 1309&rft_subject=AWAGS&rft_subject=GADDS2.0&rft_subject=radiometrics&rft_subject=uranium&rft_subject=airborne digital data&rft_subject=geophysical survey&rft_subject=rad&rft_subject=U&rft_subject=gamma-ray&rft_subject=spectrometry&rft_subject=raster&rft_subject=Published_External&rft.type=dataset&rft.language=English Access the data
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(c) Commonwealth of Australia (Geoscience Australia) and Department for Energy and Mining, Government of South Australia 2020

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Brief description

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. The Geological Survey of South Australia commissioned the Gawler Craton Airborne Survey (GCAS) as part of the PACE Copper initiative. The airborne geophysical survey was flown over parts of the Gawler Craton in South Australia. The program was designed to capture new baseline geoscientific data to provide further information on the geological context and setting of the area for mineral systems (http://energymining.sa.gov.au/minerals/geoscience/pace_copper/gawler_craton_airborne_survey). This radiometric uranium grid has a cell size of 0.0004 degrees (approximately 41m) and shows uranium element concentration of the Gairdner Airborne Magnetic Radiometric and DEM survey, SA, 2018 in units of parts per million (or ppm). The data used to produce this grid was acquired in 2018 by the SA Government, and consisted of 104788 line-kilometres of data at 200m line spacing and 60m terrain clearance. To constrain long wavelengths in the grid, an independent data set, the Australia-wide Airborne Geophysical Survey (AWAGS) airborne magnetic data, was used to control the base levels of the survey grid.

Lineage

Maintenance and Update Frequency: notPlanned
Statement: This Gairdner - U equivalent concentration grid (AWAGS, no nasvd) is an airborne-derived radiometric uranium grid for the Gairdner Airborne Magnetic Radiometric and DEM survey, SA, 2018. The Geological Survey of South Australia commissioned the Gawler Craton Airborne Survey (GCAS) as part of the PACE Copper initiative. The airborne geophysical survey was flown over parts of the Gawler Craton in South Australia. The program was designed to capture new baseline geoscientific data to provide further information on the geological context and setting of the area for mineral systems (http://energymining.sa.gov.au/minerals/geoscience/pace_copper/gawler_craton_airborne_survey). The survey was acquired under the project No. 1309 for the geological survey of SA. The grid has a cell size of 0.0004 degrees (approximately 41m). A total of 104788 line-kilometres of data at a line spacing of 200m and 60m terrain clearance were acquired to produce this grid. This radiometric uranium grid shows uranium element concentration of the Gairdner Airborne Magnetic Radiometric and DEM survey, SA, 2018 in units of parts per million (or ppm). To constrain long wavelengths in the grid, an independent data set, the Australia-wide Airborne Geophysical Survey (AWAGS) airborne magnetic data, was used to control the base levels of the survey grid (Milligan et al., 2009). This survey grid is essentially levelled to AWAGS. Details of the specifications of individual airborne surveys can be found in the Fourteenth Edition of the Index of Airborne Geophysical Surveys (Percival, 2014). This Index is also available online at http://pid.geoscience.gov.au/dataset/79134. References: Milligan, P.R., Minty, B.R.S., Richardson, M. & Franklin, R., 2009. The Australia-wide Airborne Geophysical Survey accurate continental magnetic coverage. Preview, No. 138, p. 1-128, Percival, P.J., 2014. Index of airborne geophysical surveys (Fourteenth Edition).

Created: 31 10 2020

Issued: 31 10 2020

Modified: 05 07 2021

Data time period: 30 06 2018 to 23 01 2019

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136.5046,-31.491 136.5046,-32.6746 134.9958,-32.6746 134.9958,-31.491 136.5046,-31.491

135.7502,-32.0828

text: westlimit=134.9958; southlimit=-32.6746; eastlimit=136.5046; northlimit=-31.491; projection=GDA94 (EPSG:4283)

Subjects
AWAGS | Australia | EARTH SCIENCES | Earth sciences | GADDS2.0 | NCI | Published_External | SA | U | airborne digital data | gamma-ray | geophysical survey | geophysics | geoscientificInformation | grid | rad | radiometrics | raster | spectrometry | survey 1309 | uranium |

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Other Information
The Geophysical Archive Data Delivery System (GADDS2) portal provides HTTP download of geophysics datasets in a number of formats. Point and line datasets are available in NetCDF and ASEG-GDF2. Grid datasets are available in NetCDF, GeoTIFF and ERS. (File available for download in various formats from the GADDS2 portal)

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

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