Authors / CoAuthors
Geophysical Acquisition & Processing Section
Abstract
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 Tallaringa, SA, 2006 (P1162), radiometric line data, AWAGS levelled were acquired in 2006 by the SA Government, and consisted of 34469 line-kilometres of data at 400m line spacing and 80m terrain clearance. To constrain long wavelengths in the data, an independent data set, the Australia-wide Airborne Geophysical Survey (AWAGS) airborne magnetic data, was used to control the base levels of the survey data. This survey data is essentially levelled to AWAGS.
Product Type
dataset
eCat Id
143021
Contact for the resource
Point of contact
Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
ACT
2601
Australia
Keywords
- theme.ANZRC Fields of Research.rdf
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- EARTH SCIENCES
- ( Discipline )
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- Earth sciences
- ( Discipline )
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- geophysics
- ( Feature type )
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- line
- ( Place )
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- Australia
- ( Place )
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- SA
- ( Project )
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- survey 1162
- ( Theme )
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- AWAGS
- ( Theme )
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- GADDS2.0
- ( Theme )
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- radiometrics
- ( Theme )
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- gamma-ray
- ( Theme )
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- spectrometry
- ( Theme )
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- NASVD
- ( Theme )
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- potassium
- ( Theme )
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- thorium
- ( Theme )
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- uranium
- ( Theme )
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- airborne digital data
- ( Theme )
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- geophysical survey
- ( Theme )
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- line
- ( Theme )
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- vector
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- Published_External
Publication Date
2019-12-15T00:00:00
Creation Date
2019-12-15T00:00:00
Security Constraints
Legal Constraints
Status
completed
Purpose
Maintenance Information
notPlanned
Topic Category
geoscientificInformation
Series Information
Lineage
This Tallaringa, SA, 2006 (P1162), radiometric line data, AWAGS levelled is an airborne-derived radiometric data for the Tallaringa, SA, 2006. The data was acquired under the project No. 1162 for the geological survey of SA. A total of 34469 line-kilometres of data at a line spacing of 400m were acquired during this survey. To constrain long wavelengths in the data, an independent data set, the Australia-wide Airborne Geophysical Survey (AWAGS) airborne magnetic data, was used to control the base levels of the survey data (Milligan et al., 2009). This survey data is essentially levelled to AWAGS. Noise-adjusted singular value decomposition (NASVD) has been applied to the data. NASVD is a spectral component analysis procedure for the removal of noise from gamma-ray spectra. 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).
Parent Information
Geophysical Data Collection - Airborne Geophysics
UUID - ddeb0fc4-32e3-4913-80f2-f4249b17a925,
eCat ID - 111301
Extents
[-29.8981, -28.9622, 131.4633, 133.0326]
Reference System
GDA94 (EPSG:4283)
Spatial Resolution
Service Information
Associations
Downloads and Links
Source Information
This Tallaringa, SA, 2006 (P1162), radiometric line data, AWAGS levelled includes airborne-derived radiometric data for the Tallaringa, SA, 2006 acquired for the geological survey of SA