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Geological Petrographic And Geochemical Characterization Of The Roughrider West Zone Unconformity Type Uranium Deposit Athabasca Basin Saskatchewan
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Book Synopsis Geological, Petrographic and Geochemical Characterization of the Roughrider West Zone Unconformity-Type Uranium Deposit, Athabasca Basin, Saskatchewan by : Rachel Anne Boulanger
Download or read book Geological, Petrographic and Geochemical Characterization of the Roughrider West Zone Unconformity-Type Uranium Deposit, Athabasca Basin, Saskatchewan written by Rachel Anne Boulanger and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bulletin by : Geological Survey of Canada
Download or read book Bulletin written by Geological Survey of Canada and published by . This book was released on 1950 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Geology and Recognition Criteria for Veinlike Uranium Deposits of the Lower to Middle Proterozoic Unconformity and Strata-related Types by : Franz J. Dahlkamp
Download or read book Geology and Recognition Criteria for Veinlike Uranium Deposits of the Lower to Middle Proterozoic Unconformity and Strata-related Types written by Franz J. Dahlkamp and published by . This book was released on 1980 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book EXTECH IV written by Charlie W. Jefferson and published by . This book was released on 2007-01-01 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Geology of the Uranium Deposits Related to the Sub-Athabasca Unconformity, Saskatchewan by : Leo Paul Tremblay
Download or read book Geology of the Uranium Deposits Related to the Sub-Athabasca Unconformity, Saskatchewan written by Leo Paul Tremblay and published by . This book was released on 1982 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this paper is to describe the main characteristics of the uranium deposits related to the Athabasca basin as presently known, to define the characteristics of each type or group, to compare the main types with one another, and to attempt a classification.
Book Synopsis Uranium Exploration in Athabasca Basin, Saskatchewan, Canada by : Geological Survey of Canada
Download or read book Uranium Exploration in Athabasca Basin, Saskatchewan, Canada written by Geological Survey of Canada and published by Geological Survey of Canada. This book was released on 1983 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Uranium Deposits of the Athabasca Basin, Saskatchewan by : T. I. I. Sibbald
Download or read book Uranium Deposits of the Athabasca Basin, Saskatchewan written by T. I. I. Sibbald and published by . This book was released on 1990 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Alteration Spatially Associated with the Phoenix Unconformity-Related Uranium Deposit, Athabasca Basin, Saskatchewan, Canada by : Jack Dann
Download or read book Alteration Spatially Associated with the Phoenix Unconformity-Related Uranium Deposit, Athabasca Basin, Saskatchewan, Canada written by Jack Dann and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Unconformity-related uranium deposits in the Athabasca Basin represent a significant global resource of uranium. One such deposit, the Phoenix Deposit, discovered in 2007 on Denison Mine's Wheeler River property, shares similarities with other deposits in the Basin. The Phoenix Deposit is located at the apex between a basement shear structure, and the unconformity between the crystalline basement and overlying sandstones. The shear structure extends into the sandstones, this structure controls the distribution of alteration minerals in the basement and early alteration phases in sandstones. The shear structure extending to sandstones is not spatially associated with late alteration phases associated with the uranium deposit, suggesting that the structure was not important for uranium mineralisation. Bulk rock compositions of sandstones show chimney-like distribution of elements above the uranium deposit. The most notable ones are the distribution of yttrium, and boron. Rare earth elements and yttrium are not soluble in aqueous fluids at low temperatures and they are enriched in uranium ore. Therefore, the chimney-like distribution of elements are attributed to uraniferous hydrothermal activity in sandstones. Petrographic and chemical analysis of alteration associated with the Phoenix Deposit shows two types of tourmaline, a pre-ore (Tur 1) in the basement, which is likely a metamorphic product (Tur1) and a syn-ore magnesiofoitite (Tur 2) in the basement and the sandstones. Three generations of chlorite are identified within the alteration halo of the Phoenix Deposit; an early Fe-rich clinochlore (C1) in the basement and sandstones, the second generation, Mg-rich sudoitic chlorite (C2) in the basement, and a late, sudoitic chlorite (C3) in the basement and sandstones. Illite shows three types; an early and late M1 and a late M2. M1 is found as two polytypes, 1Mc and 1Mt, in the basement and sandstones, with the 1Mt having a spatial relationship with the uranium deposit. Late M2 illite is coarse-grained and occurs in the basement and sandstones. Near Infrared (NIR) spectra of sandstones overlying the deposit shows absorption features between 600 and 700 nm. It is considered that these absorption features appear to have been produced during late hydrothermal activity and may have a temporal as well as spatial relationship with uranium mineralisation.
Author :Canadian Institute of Mining and Metallurgy Publisher :Published for the Geology Division of CIM by the Canadian Institute of Mining and Metallurgy ISBN 13 : Total Pages :280 pages Book Rating :4.F/5 ( download)
Book Synopsis Geology of Uranium Deposits by : Canadian Institute of Mining and Metallurgy
Download or read book Geology of Uranium Deposits written by Canadian Institute of Mining and Metallurgy and published by Published for the Geology Division of CIM by the Canadian Institute of Mining and Metallurgy. This book was released on 1985 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Geochemical and Microbial Assessment of the Unconformity-related Uranium Prospectivity of the Hawk Reapids Area, Southeastern Athabasca Basin, Canada by :
Download or read book Geochemical and Microbial Assessment of the Unconformity-related Uranium Prospectivity of the Hawk Reapids Area, Southeastern Athabasca Basin, Canada written by and published by . This book was released on 2014 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hawk Rapids is a uranium exploration project located in the southeastern part of the Athabasca Basin, in Saskatchewan, Canada. Geochemical and mineralogical assessments of drill core from Hawk Rapids were used to evaluate the possibility of an unconformity-related uranium deposit occurring within the area. The mineral evolution of this area spans the pre-Athabasca Basin period through diagenesis to post hydrothermal alteration events. Pre-Athabasca alteration is characterized by muscovite and clinochlore while early to late diagenesis is represented by early hematite, quartz overgrowths, dickite and illite. These events were followed by dravite, both in the basement and sandstone units, kaolinite, pyrite, minor coffinite, uraninite, and siderite, which mark the hydrothermal evolution of the area. Post-hydrothermal activity is marked by the late influx of meteoric water, which resulted in formation of late kaolinite. The alteration fluids at Hawk Rapids have three distinct isotopic compositions associated with these stages of evolution. The fluid in equilibrium with pre-Athabasca alteration minerals has an isotopic composition similar to that of modified seawater or low latitude meteoric waters. Basinal brines with a meteoric component characterize the fluid in equilibrium with illite, which represents the diagenetic mineral assemblage. The precipitation of dravite in the hydrothermal stage records a mixture of both basement modified and basinal brines. Radiogenic Pb leached from the drill core samples at Hawk Rapids was derived from both internal and external sources. The breakdown of uranium-rich heavy minerals such as apatite, zircon and monazite make up the internal sources while other uranium-rich sources such as possible proximal uranium deposits constitute external sources. Microbial methane production coupled with methane consumption (microbial methane oxidation) are the major microbial activities associated with unconformity-related uranium at Hawk Rapids. The activities of these microbes are most pronounced near the unconformity where there is secondary dispersion of uranium and associated pathfinder elements that serve as nutrients. This work shows that the integration of both geochemical and mineralogical data is an effective tool in evaluating the prospectivity of an area for possible unconformity-related uranium deposits.
Book Synopsis The Geology and Geochemistry of the Millennium Uranium Deposit, Athabasca Basin, Saskatchewan, Canada by : Charles J. Beshears
Download or read book The Geology and Geochemistry of the Millennium Uranium Deposit, Athabasca Basin, Saskatchewan, Canada written by Charles J. Beshears and published by . This book was released on 2010 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: Uranium -- geochemistry -- isotopes -- geology.
Book Synopsis Geochemical Surface Expression of the Phoenix and Millennium Uranium Deposits, Athabasca Basin, Saskatchewan by : Michael James Power
Download or read book Geochemical Surface Expression of the Phoenix and Millennium Uranium Deposits, Athabasca Basin, Saskatchewan written by Michael James Power and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The geochemistry of surface media above two known U deposits were examined to observe any possible dispersion products could be detected from them, and based on these findings, improved geochemical exploration techniques are proposed to reduce cost of finding undiscovered U resources. This study examined the materials overlying the Phoenix deposits, which have indicated resources of approximately 58.2 million lbs U3O8 grading 15 wt% that lie at 400 m depth below surface at the unconformity between the overlying Athabasca sandstones and Paleoproterozoic basement rocks. Aqua regia digestion, ammonium acetate at pH 5 and hydroxylamine leaches revealed U, Pb, Co, Ni, Mo, and W anomalies in humus and U, W and As anomalies in B-horizon soils above the ore zones and the basement location of a deposit-hosting, northeast-trending zWS Hanging Wally shear zone over a three year period. These metal signatures suggest likely upward transport of metals from the deposits to overlying sandstones, and subsequently into the overlying till and soils. This study also looked at materials above the Millennium U deposit, which has indicated resources of 68.2 million lbs U3O8 grading 4 wt% at 7̃50 m depth that occurs along a major fault in granites & metamorphosed pelites of Paleoproterozoic age below the Athabasca sandstones. Soil samples taken over the surface projections of an ore-hosting fault and the ore zone yielded anomalous values in U, Ni, Cu and Pb in aqua regia digestion of humus and U, Cu and Pb values in ammonium acetate leach of pH 5 of B-horizon soils. Hydroxylamine leach did not yield as many anomalies as ammonium acetate leach. Measured 4He/36Ar ratios of gas dissolved in water-filled drill holes were observed to be up to about 700 times the atmosphere value for air-saturated water, revealing the presence of radiogenic 4He that was likely produced from decaying U and released in the groundwater above the deposit. Our results suggest upward migration of metals to surface through porous sandstone and fault systems at Phoenix, and upward migration of metals along faults and He gas at Millennium. Both studies indicate the importance of the traverse method of sampling over targets perpendicular to the last major ice-flow event to discern U deposits that are defined by other means.
Book Synopsis Geological Survey of Canada, Current Research (Online) no. 2003-C20 by :
Download or read book Geological Survey of Canada, Current Research (Online) no. 2003-C20 written by and published by Natural Resources Canada. This book was released on with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Uranium Provinces of North America by : Warren Irvin Finch
Download or read book Uranium Provinces of North America written by Warren Irvin Finch and published by . This book was released on 1996 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 3D Lithogeochemical Footprint of the Millennium-McArthur River Unconformity-type Uranium Deposits, Saskatchewan, Canada by : Shannon Dee Guffey
Download or read book 3D Lithogeochemical Footprint of the Millennium-McArthur River Unconformity-type Uranium Deposits, Saskatchewan, Canada written by Shannon Dee Guffey and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Millennium and McArthur River unconformity-related uranium deposits in the southeastern Athabasca Basin, Saskatchewan, are overlain by hydrothermally altered sandstones of the Manitou Falls Formation. The distal lithogeochemical footprints in these sandstones, from unconformity to subcrop, are useful for vectoring toward mineralization using simple major and trace element analyses. Large first order alteration envelopes are defined by molar element ratios K/Al vs. Mg/Al, which surround smaller, second order trace element haloes. At Millennium, median Mg/K molar ratios >0.2 define a 10-km alteration envelope. Values increase significantly within 2 km of the deposit, coinciding with Mo, Ga, and REE enrichment 100s of metres vertically above the deposit. At McArthur River, K/Al
Book Synopsis 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 by : Morteza Rabiei
Download or read book 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 written by Morteza Rabiei and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Unconformity-related 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 fluids or reducing lithologies. However, the factors that control localization of orebodies within limited areas along the structures remain to be determined. This study tackles this problem by examining the spatial and temporal variation of composition and pressure-temperature conditions of ore-forming fluids along two major URU-controlling structures, the Patterson Lake corridor (PLC) in the southwestern margin of the basin and the P2 fault in McArthur River area in the eastern Athabasca Basin. The results provide new insights on the sources and paths of the ore-forming fluids, ore deposition mechanisms, and the role of structures in controlling the localization of mineralization. Fluid inclusion analyses indicate that the pre-Athabasca fluids have lower salinities and higher homogenization temperatures (average salinity of 9.0 wt.% NaCl equivalent and average Th of 147 ̊C) than syn-mineralization fluids (average salinity of 25.4 wt.% NaCl + CaCl2 and average Th of 128 ̊C). The overall similarities in fluid composition between the syn-mineralization fluids and fluid inclusions recorded within the basin, including elevated salinities, NaCl and CaCl2 as dominant solutes, and variable Ca/Na ratios from Ca-dominated to Na-dominated varieties, supports the general hypothesis that ore-forming fluids were derived from basinal brines. Microthermometric analyses on fluid inclusions from syn-mineralization drusy quartz veins indicate that fluids with similar Th, salinity, and Ca/Na values were present in mineralized zones and areas distal to mineralization: over ~31 km strike length and up to ~900 m vertical extent in the PLC and ~4.3 km strike length of the P2 fault. Coexistence of liquid-dominated, vapor-dominated, and vapor-only fluid inclusions in fluid inclusion assemblages indicate that fluid boiling, which is interpreted to be related to low fluid pressure caused by episodic fracturing, occurred in both mineralized and distal areas along the ore-hosting structures. Laser ablation - inductively coupled plasma - mass spectrometry (LA-ICPMS) of individual fluid inclusions indicate that U-rich fluids were present in both mineralized segments (0.4 to 213.9 ppm) and distal areas (0.3 to 144.2 ppm). Uraniumrich fluids were also detected by ICP-MS analysis of bulk fluid inclusions from both mineralized zones (0.4 to 1562 ppm) and distal areas (0.1 to 1.5 ppm), as well as by synchrotron X-ray fluorescence (SXRF). These results suggest that uraniferous fluids with similar thermal and compositional characteristics circulated along the entire structures and at different depths. The formation of a significant U mineralization at a given locality is therefore not determined by the presence or absence of U-rich fluids, but rather by the abundance or flow rate of uraniferous fluids and reducing fluids as well as their relative timing. The differences in fluid flow rate and timing of different fluids in different parts of a given structure may be related to factors such as heterogeneous permeabilities, variations in lithology and fault geometry that control fluid flow mechanisms.
Download or read book Geological Survey Paper written by and published by . This book was released on 1935 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:
