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TitleApplication of regional geochemical datasets to uranium exploration in the Athabasca Basin, Saskatchewan
DownloadDownload (whole publication)
AuthorWright, D M; Potter, E G
SourceTargeted Geoscience Initiative 4: unconformity-related uranium systems; by Potter, E G (ed.); Wright, D M (ed.); Geological Survey of Canada, Open File 7791, 2015 p. 14-20, (Open Access)
PublisherNatural Resources Canada
Documentopen file
Mediaon-line; digital
RelatedThis publication is contained in Potter, E G; Wright, D M; (2015). Targeted Geoscience Initiative 4: unconformity-related uranium systems, Geological Survey of Canada, Open File 7791
File formatpdf
NTS64E; 64L; 64M; 74F; 74G; 74H; 74I; 74J; 74K; 74N; 74O; 74P
Lat/Long WENS-112.0000 -102.0000 60.0000 57.0000
Subjectseconomic geology; radioactive minerals; geochemistry; unconformity-type deposit; unconformities; uranium deposits; uranium; mineral deposits; mineral occurrences; mineralization; geochemical surveys; geochemical analyses; uranium thorium ratios; yttrium geochemistry; lithium geochemistry; Athabasca Basin
Illustrationslocation maps; plots
ProgramTargeted Geoscience Initiative (TGI-4), Uranium Ore Systems
Released2015 03 02 (08:30)
AbstractRegional examination and integration of geochemical data with other components of the uranium exploration model can influence mineral exploration. This approach was applied to regional geochemical data for the Athabasca Basin, northern Saskatchewan, which is host to some of the world's most significant high-grade unconformity-associated uranium deposits. Composite geochemical features based on components of four lithogeochemical signatures highlight specific chemical- spatial relationships important to ongoing exploration for unconformity-associated uranium in the Athabasca Basin. Geospatial integration of these geochemical signatures with regional lineaments and the exploration model highlights that they: 1) correspond with known uranium occurrences and deposits; 2) occur in the exposed and near-surface rocks, including locations overlying ore at significant depths; and 3) correspond with lineament traces and highlight lineament intersections that are fertile for uranium enrichment. Geochemical Signature 1 illustrates uranium enrichment relative to thorium, emphasizing two distinct types of uranium anomalism. Geochemical Signature 2 illustrates yttrium enrichment relative to phosphorous, which reflects chemo-stratigraphic signatures in the upper Athabasca Group and also displays a spatial (and perhaps temporal) association with known zones of uranium mineralization. Geochemical Signatures 3 and 4, represented by magnesium behaviour relative to lithium, and copper behaviour relative to cobalt, respectively, provide further refinement of the proximal to distal alteration signatures around known deposits.