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Showing 1 to 11 of 11 for “"Athabasca Basin"”.
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Graphite-bearing and graphite-depleted basement rocks in the Dufferin Lake Zone, south-central Athabasca Basin, Saskatchewan
Unconformity-type uranium deposits from the Athabasca Basin are considered to be the result of mixing between oxidized basinal brines and basement-derived reduced fluids/gases, and/or reduced basement rocks. Graphite and/or its breakdown products are suggested to be responsible for uranium …
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Geochemical modeling of diagenesis, hydrothermal alteration, and unconformity-related uranium mineralization in the Athabasca Basin, Saskatchewan, Canada
… uranium (URU) deposits in the Athabasca Basin were interpreted to have formed through interactions between oxidizing basinal fluids and reducing basement-derived fluids or basement lithologies under diagenetic-hydrothermal conditions. However, there is controversy regarding …
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URANYL DEPOSITION IN UNCONFORMITY-RELATED DEPOSITS IN THE ATHABASCA BASIN: EVIDENCE FROM URANIUM SPECIATION IN HEMATITE AND GOETHITE
… in most uranium deposits such as those in the Athabasca basin (Canada) occurred are often not clear. The unconformity-related uranium deposits in the Athabasca basin are commonly accompanied by extensive and intensive hematite-rich alteration halos. Previous U L3-edge XANES studies of …
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Petrographic, Fluid Inclusion, and Illite Geothermometry Analysis of the Rumpel Lake Drill Core, Athabasca Basin, Northern Saskatchewan, Canada
The Athabasca Basin in northern Saskatchewan contains some of the world’s highest-grade unconformity-related uranium deposits, the genesis of which has been extensively explored in the literature. Constraints on the temperature, pressure, and composition of diagenetic fluids within the Athabasca …
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Distribution of Radiation-Induced Defects in Quartz at the ACKIO Uranium Prospect, Athabasca Basin, Saskatchewan: Tracing Uranium-Bearing Fluids
… Energy Corp.’s ACKIO uranium prospect in the Athabasca Basin, northern Saskatchewan. The study included samples taken from both the Athabasca Supergroup sandstones and basement rocks from 16 diamond drillholes. Detailed EPR analyses revealed that quartz from both sandstones and basement rocks …
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A Study of Petrography, Fluid Inclusions and Graphite Alteration of the Phoenix Uranium Deposit, Athabasca Basin, Northern Saskatchewan, Canada
… (URU) deposit, located in the southeastern Athabasca Basin, is associated with a NE-trending, moderately SE-dipping reverse fault crosscutting the unconformity between the Proterozoic Athabasca Group and the Archean – Paleoproterozoic basement. The mineralisation occurs mainly along the …
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Geometric and hydrodynamic modelling of fluid-structural relationships in the southeastern Athabasca Basin, Saskatchewan, Canada, with implications for uranium ore genesis
… unconformity-related uranium deposits in the Athabasca Basin in northern Saskatchewan, Canada, generally show close spatial relationships with reactivated basement faults. However, the nature of this relationship has not been well understood. This thesis aims to address this problem through …
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A Study of Compaction and Cementation of Sandstones in the Athabasca Basin, Northern Saskatchewan, Canada, and Implications for Uniformity-related Uranium Mineralization
The Athabasca Basin hosts numerous high-grade unconformity-related uranium (URU) deposits, which typically occur near the unconformity between the metamorphosed basement and the quartzose sedimentary rocks. Previous studies have generally agreed upon a diagenetic-hydrothermal model in which the URU …
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Spatial and Temporal Variations in Composition and P-T Conditions of Ore-Forming Fluids Along Structures Controlling Unconformity-Related Uranium Deposits in the Athatbasca Basin, Saskatchewan
… uranium (URU) deposits in the Athabasca Basin occur within certain segments of basement-rooted reverse faults near the basin-basement unconformity. It is widely accepted that these deposits formed through interaction between oxidized basinal fluids and reduced basement-derived …
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Fluid Evolution and Structural Control on Uranium Deposits in Successor Basins in Northern Canada and Northern Australia
… associated with Paleoproterozoic successor basins were investigated using structural, petrographic, geochronological and geochemical relationships to understand the character and timing of ore-forming fluids and the structural control on uranium mineralization. The work focused on two …
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History of the fluids associated with the lode-gold deposits, and complex U-PGE-Au vein-type deposits, Goldfields Peninsula, Northern Saskatchewan, Canada
… as the Late Aphebian to Helikian-aged Martin and Athabasca Groups. The succession of sedimentary basins was probably controlled by the virtually continuous tectonic evolution of the area prior to, and during, the Thelon-Talston (ca. 2.0 Ga), and Hudsonian (ca. 1.8 Ga) orogenies. The first fluid …