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TitleAlteration features and geochemical signatures of the Maybelle River uranium zone, Athabasca Basin, Alberta
DownloadFree download (whole publication) (zip 291344 KB)
AuthorKupsch, B G; Catuneanu, O
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. 347-361; 1 CD-ROM, https://doi.org/10.4095/223780
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
NTS74L/07
AreaMaybelle River
Lat/Long WENS-111.0000 -110.5000 58.5000 58.2500
Subjectsgeochemistry; mineralogy; uranium; uranium deposits; mineralization; unconformity-type deposit; unconformities; alteration; arsenic; nickel; sedimentary rocks; basins; sedimentary basins; basement geology; bedrock geology; trace element geochemistry; whole rock geochemistry; whole rock analyses; host rocks; lithogeochemistry; Athabasca Basin; Athabasca Group; Rae Province; Hearne Province; Fair Point Formation; Precambrian; Proterozoic; Cenozoic; Quaternary
Illustrationssketch maps; cross-sections; plots; tables
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
AbstractThe Maybelle River uranium zone comprises several drill intersections up to 20.9% U3O8 over 5 m, in basal Fair Point Formation just above the unconformity with a paleoweathered graphitic mylonitic zone in gneissic basement. Detailed petrography of selected drill-core samples documents an alteration halo with the following similarities to those surrounding polymetallic uranium deposits in the eastern Athabasca Basin of Saskatchewan: massive clay replacement, quartz dissolution and sandstone collapse, drusy quartz- and pyrite-lined fractures, chlorite overprinting, and bleaching. Regional interstitial illite and dickite are replaced by chlorite and additional illite in strata surrounding the uraniferous zone. Lithogeochemistry of drill core reveals a polymetallic ore assemblage: uranium, arsenic, nickel, boron, phosphorus, molybdenum, and cobalt. These studies confirm the geological environment of the western part of Athabasca Basin as favourable for major unconformity-related deposits as in eastern and central parts of the basin, and provide guides to further exploration.
GEOSCAN ID223780