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TitlePreliminary interpretations of high-resolution airborne radiometric data, Athabasca Basin region
DownloadDownloads
AuthorFortin, R; Harvey, B J A; Campbell, J E; Potter, E G; Sinclair, L E; Jefferson, C W
SourceGeological Survey of Canada, Open File 7609, 2014, 1 sheet, https://doi.org/10.4095/293819 (Open Access)
Image
Year2014
PublisherNatural Resources Canada
Documentopen file
Lang.English
MapsPublication contains 1 map
Map Info.geophysical, radiometric ternary
ProjectionUniversal Transverse Mercator Projection, UTM zone 13N (NAD83)
Mediaon-line; digital
File formatpdf
ProvinceSaskatchewan
NTS74H
AreaGeikie River
Lat/Long WENS-106.0000 -104.0000 58.0000 57.0000
Subjectsgeophysics; gamma-ray surveying; gamma-ray surveys; gamma-ray surveys, airborne; gamma-ray spectrometers; potassium; uranium; thorium; radiometric surveys; anomalies; radiometric anomalies
Illustrationslocation maps; photographs; histograms
ProgramUranium, GEM: Geo-mapping for Energy and Minerals
ProgramUranium Ore Systems, Targeted Geoscience Initiative (TGI-4)
Released2014 05 16
AbstractAirborne gamma-ray spectrometry provides measurements of the surface concentrations of potassium (K), equivalent uranium (eU) and equivalent thorium (eTh). The resulting radiometric maps present intricate spatial variations that are controlled among other things by the complex surface processes and the inherent statistical fluctuations of radioactive decays. To enhance the readability of the radiometric images, radiometric domains, spatially-restricted areas presenting a distinctive signature, can be traced to provide local baselines of the surface concentrations of the natural radioelements. This approach was applied to airborne gamma-ray survey data from the "Eastern Athabasca Basin" survey, in Saskatchewan. Ground spectrometry measurements were conducted in 2013 within the radiometric domains that were identified and compare well with domain averages calculated from the airborne survey data.
Summary(Plain Language Summary, not published)
Airborne gamma-ray spectrometry (AGRS) provides direct measurements of the earth surface's concentrations of potassium (K), Uranium (U) and Thorium (Th). This information, usually presented on a map, is very useful for geological mapping and mineral exploration. This poster present a methodology, that was applied to AGRS data from the Athabasca Basin area, to enhance the readability of AGRS maps by reducing the complexity of the measurements in a set of spatially-restricted areas. It will help end-users involved in geological mapping and exploration make better use of the wealth of geophysical survey data distributed freely by the Geological Survey of Canada.
GEOSCAN ID293819