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TitleQuantifying fertile alteration in the Patterson Lake corridor, Saskatchewan, through visible-near infrared-shortwave infrared spectroscopy
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AuthorPowell, J W; Potter, E G; Tschirhart, V; Percival, J B; Mount, S; McEwan, B; Ashley, R; Wheatley, K
SourceTargeted Geoscience Initiative: 2018 report of activities; by Rogers, N (ed.); Geological Survey of Canada, Open File 8549, 2019 p. 365-379, (Open Access)
PublisherNatural Resources Canada
Documentopen file
Mediaon-line; digital
RelatedThis publication is contained in Rogers, N; (2019). Targeted Geoscience Initiative: 2018 report of activities, Geological Survey of Canada, Open File 8549
File formatpdf
NTS74F/11; 74F/14
AreaForest Lake; Murison Lake
Lat/Long WENS-109.5000 -109.0000 58.0000 57.5000
Subjectseconomic geology; geophysics; mineralogy; mineral deposits; uranium; unconformity-type deposit; mineral exploration; mineral potential; ore mineral genesis; mineralization; ore controls; fluid dynamics; fluid flow; drillholes; core samples; drill core analyses; spectroscopic analyses; infrared spectral analyses; geophysical logging; gamma ray logging; magnetic susceptibility; mineralogical analyses; reflectance; clay minerals; crystallography; thermal maturation; x-ray diffraction analyses; alteration; bedrock geology; basement geology; lithology; metamorphic rocks; mafic rocks; ultramafic rocks; orthogneisses; structural features; unconformities; Archean; Athabasca Basin; Patterson Lake Corridor; Taltson Domain; Rae Province; Canadian Shield; Arrow Prospect; Triple R Prospect; Spitfire Prospect; Clearwater project; Harpoon discovery; Taltson Magmatic Zone; Athabasca Group; Manitou Falls Formation; Lazenby Lake Formation; ore systems approach; Precambrian
Illustrationslocation maps; geoscientific sketch maps; photographs; tables; profiles; gamma ray logs; spectra; pie charts
ProgramTargeted Geoscience Initiative (TGI-5), Knowledge Management Coordination
ProgramTargeted Geoscience Initiative (TGI-5), Uranium ore systems - fluid pathways
Released2019 03 01
AbstractVisible-near infrared - shortwave infrared (VNIR-SWIR) spectroscopy, gamma-ray logs, and magnetic susceptibility measurements were taken on drill core samples that span the Patterson Lake exploration corridor (PLC) on the south-western margin of the Athabasca Basin. Clay mineralogy and mineral properties (composition, crystallinity) derived from reflectance spectra were compared with gamma-ray and magnetic susceptibility profiles to assess relationships between uranium mineralization and alteration in the crystalline basement. In all drill core, the clay mineralogy is similar to the clay alteration in deposits of the eastern portion of basin, although in the PLC, dickite is uncommon and kaolinite horizons are associated with high-grade mineralization. Several drill core exhibit trends between spectral parameters related to the crystallinity and thermal maturity of clays (illite and kaolinite) and uranium mineralization. A non-mineralized drill core with moderate clay alteration was expectantly nonmagnetic. In comparison, the magnetic susceptibility within a mineralized hole that included multiple lithologies correlated with observed parameters computed from reflectance spectra. These results highlight the efficacy of VNIR-SWIR reflectance spectroscopy in characterizing clay alteration associated with uranium mineralization. As shown throughout the Athabasca Basin, mineralogy and spectral parameters may vector towards fertile fluid conduits when expanded to property- or corridor-scales.