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TitleComparison of geophysical, mineralogical, and stratigraphic attributes in drillholes MAC-218 and RL-88, McArthur River uranium camp, Athabasca Basin, Saskatchewan
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LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorMwenifumbo, C J; Percival, J BORCID logo; Bernius, G R; Elliott, B; Jefferson, C W; Wasyliuk, K; Drever, G
SourceEXTECH IV: Geology and Uranium EXploration TECHnology of the Proterozoic Athabasca Basin, Saskatchewan and Alberta; by Jefferson, C W (ed.); Delaney, G (ed.); Geological Survey of Canada, Bulletin no. 588, 2007 p. 507-520; 1 CD-ROM, Open Access logo Open Access
Alt SeriesSaskatchewan Geological Society Special Publication 18
Alt SeriesGeological Association of Canada, Mineral Deposits Division, Special Publication 4
PublisherNatural Resources Canada
Mediapaper; CD-ROM; on-line; digital
RelatedThis publication is contained in EXTECH IV: Geology and Uranium EXploration TECHnology of the Proterozoic Athabasca Basin, Saskatchewan and Alberta
File formatpdf
NTS74H/15; 64L
AreaMcArthur River; Wollaston Lake
Lat/Long WENS-105.0000 -104.5000 58.0000 57.7500
Lat/Long WENS-104.0000 -102.0000 59.0000 58.0000
Subjectseconomic geology; geophysics; mineralogy; stratigraphy; mineral exploration; exploration; uranium; uranium deposits; mineralization; unconformity-type deposit; unconformities; metamorphic rocks; gneisses; basins; sedimentary basins; structural features; faults; shear zones; basement geology; bedrock geology; Archean; geophysical surveys; gamma-ray surveys; gamma-ray spectroscopy; geophysical interpretations; metamorphism; petrography; lithogeochemistry; lithostratigraphy; Athabasca Basin; Athabasca Group; Rae Province; Hearne Province; Read Formation; Manitou Falls Formation; Precambrian; Proterozoic
Illustrationssketch maps; seismic profiles; tables; photomicrographs
ProgramExploration Science and Technology (EXTECH IV) Initiative, 2000-2003
ProgramNorthern Resources Development Program
ProgramSecure Canadian Energy Supply
Released2007 07 20
AbstractMultiparameter downhole geophysical measurements in two representative boreholes in the eastern Athabasca Basin are compared to visual, petrographic, mineralogical, and lithogeochemical analyses of their drill cores. Natural gamma-ray spectrometry data exhibit increased levels of radioactivity in the Read and Manitou Falls formations that relate mainly to natural thorium and, to a lesser extent, uranium abundances, whereas potassium responses are generally low. Thorium responses in these quartz-dominated fluvial deposits are closely correlated with detrital grain-size parameters such as the per cent of grains greater than 2 mm and are therefore interpreted to relate to primary heavy mineral accumulations and their diagenetic products (crandallite-group minerals) within coarser grained beds. Diagenetic attributes such as porosity and silicification are positively correlated with density, resistivity, and acoustic velocity. Natural
gamma-ray logs are thus guides to stratigraphy, and other geophysical parameters calibrate ore-related alteration features, thereby facilitating integration of geological and geophysical transects.

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