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TitleSurface media expressions of buried uranium: the Phoenix & Millennium deposits, Athabasca Basin, Saskatchewan, Canada
AuthorPower, M J; Hattori, K; Sorba, C; Kotzer, T; Potter, E G
SourceMineral deposit research for a high-tech world, proceedings of the 12th Biennial SGA Meeting; vol. 1, 2013 p. 426-429
Alt SeriesEarth Sciences Sector, Contribution Series 20130175
PublisherSociety for Geology Applied to Mineral Deposits (SGA)
Meeting12th Biennial SGA Meeting; Uppsala; SE; August 12-15, 2013
File formatpdf
NTS64E; 64L; 64M; 74E; 74F; 74G; 74H; 74I; 74J; 74K; 74L; 74M; 74N; 74O; 74P
Areanorthern Saskatchewan
Lat/Long WENS-112.0000 -102.0000 60.0000 57.0000
Subjectssurficial geology/geomorphology; geochemistry; glacial deposits; glacial landforms; uranium; uranium deposits; geochemical analyses; lithology; tills; till geochemistry; soil samples; soil geochemistry; Athabasca Basin; Phoenix Deposit; Millennium Deposit; Cenozoic; Quaternary
Illustrationshistograms; location maps; photographs; plots
ProgramUranium Ore Systems, Targeted Geoscience Initiative (TGI-4)
AbstractTo detect buried uranium deposits using surficial geochemistry, we selected two known deposits: Phoenix and Millennium. The Phoenix has indicated resources of 52.3 million lbs U3O8 at -400 m depth, whereas Millennium has indicated resources of 68.2 million lbs U3O8, at -750 m depth. Both are located in the southeastern Athabasca Basin, Saskatchewan, Canada. Sampling in 2011 above Phoenix yielded anomalous U, Pb, Ni, Cu, Mo, As and W in humus, B-horizon soil, till and uppermost sandstones above the deposit and WS Shear zone. 2012 sampling reproduced anomalies in soil (2-17 ppm U, 10-27 ppm Cu, 4-7 ppm Ni, 1-1.5 ppm As) in total and partial leaches. Leaching of humus in various acid solutions shows that metals are tightly held in organics. Soil sampling over Millennium in 2012 yielded broad anomalies in U (0.4-0.6 ppm), Pb (15-35 ppm) and Cu (5-15 ppm) in partial leaches of humus and B-horizon soil above the deposit & B1 and Marker faults. Results suggest upward migration of mobile metals from these deposits to surface.
Summary(Plain Language Summary, not published)
The Targeted Geoscience Initiative (TGI-4) is a collaborative federal geoscience program that provides industry with the next generation of geoscience knowledge and innovative techniques to better detect buried mineral deposits, thereby reducing some of the risks of exploration. Geochemical analysis of soils overlying deeply-buried uranium mineralization in the Athabasca Basin (Saskatchewan) has outlined the presence of certain elements in concentrations exceeding 'background' values. These elevated values suggest upward migration of mobile metal ions from these deposits to surface and while the mechanism for the movement of these metals is debated, their presence alone may provide a powerful exploration tool for deeply-buried mineralization.