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TitleMagnetic insights into basement geology in the area of McArthur River uranium deposit, Athabasca Basin, Saskatchewan
DownloadFree download (whole publication) (zip 291344 KB)
AuthorThomas, M D; McHardy, S
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. 425-440; 1 CD-ROM, https://doi.org/10.4095/223786
Year2007
Alt SeriesSaskatchewan Geological Society Special Publication 18
Alt SeriesGeological Association of Canada, Mineral Deposits Division, Special Publication 4
PublisherNatural Resources Canada
Documentserial
Lang.English
Mediapaper; CD-ROM
RelatedThis publication is contained in Jefferson, C W; Delaney, G; (2007). EXTECH IV: Geology and Uranium EXploration TECHnology of the Proterozoic Athabasca Basin, Saskatchewan and Alberta, Geological Survey of Canada, Bulletin no. 588
RelatedThis publication is contained in Jefferson, C W; Delaney, G; (2007). EXTECH IV: Geology and Uranium EXploration TECHnology of the Proterozoic Athabasca Basin, Saskatchewan and Alberta, Geological Survey of Canada, Bulletin no. 588
ProvinceSaskatchewan
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; 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; magnetic interpretations; magnetic surveys; magnetic anomalies; magnetic susceptibility; geophysical interpretations; metamorphism; Athabasca Basin; Athabasca Group; Rae Province; Hearne Province; P2 fault zone; Precambrian; Proterozoic
Illustrationssketch maps; seismic profiles; tables; images
ProgramAthabasca Uranium Multi-disciplinary Study, Exploration Science and Technology (EXTECH IV) Initiative, 2000-2003
ProgramNorthern Resources Development Program
ProgramSecure Canadian Energy Supply
Released2007 07 20
AbstractCalibration of magnetic features with gneissic basement units northeast of the Athabasca Basin, combined with extrapolation of geological-magnetic trends and drillhole information, is used to predict basement composition and structure beneath the basin in the McArthur River area, principally for a related gravity study. Magnetic lows are associated with pelitic-psammopelitic gneiss and lesser quartzite, intermediate levels with psammitic gneiss, and highs with granitoid units. Northeast-trending faults and contacts are interpreted mainly along steep magnetic gradients. Northwest-trending faults are inferred from narrow magnetic lows, and offsets or terminations of northeast-trending features. McArthur River uranium deposits lack characteristic magnetic signatures, although the P2 Main deposit lies along the southern margin of a moderate magnetic high. Uranium potential north to northeast of McArthur River is inferred to be greatest within magnetic lows of the Mudjatik Domain. These lows probably outline pelitic-psammopelitic paragneiss that locally contains graphitic conductors, which are prospective for unconformity-related uranium deposits.
GEOSCAN ID223786