Download or read book Overview of Uranium Exploration Work Along the Northern Rim of the Athabasca Basin Northeastern Alberta written by D. I. Panǎ and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
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:
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:
Download or read book Uranium Exploration in Athabasca Basin written by Geological Survey of Canada and published by . This book was released on 1983 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
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:
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:
Download or read book Investigating Modelling and Inversion Techniques for Overburden Stripping for Uranium Exploration in the Athabasca Basin Canada written by Mahrdad Darijani and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The major investment in exploration for uranium in Canada is in one of the most important structural corridors of the eastern Athabasca Basin, extending from the Millennium deposit to the McArthur River deposit (called the McArthur-Millennium corridor). This corridor hosts the largest and highest-grade uranium deposits in the world (at a depth of more than 500 m), and it will be the focus of exploration activity by companies (e.g., Cameco) in the Athabasca Basin for many years. In the McArthur-Millennium corridor, people have wondered about how to better detect structures (e.g., alteration zones) associated with the (volumetrically) small uranium mineralization at depth using geophysical methods. But the geophysical responses (e.g., the gravity response) of these structures can be masked by the variation of the overburden thicknesses. Some geophysical attempts have been made to remove the overburden signature and to find the alteration zones, but none of them have got very far. To solve this problem, I investigate developing new methodology as well as new exploration methods in the region to find and remove the overburden signature to explore for new deposits. In this dissertation, I investigate new ways to separate the overburden contribution from geophysical data (via modelling and inversion) so that deeper targets (e.g. an alteration zone) can be detected and delineated by means of an innovative application of new, modern, state-of-the-art modelling and (constrained and joint) inversion of geophysical methods such as seismic refraction, gravity, magnetic and electromagnetic methods. These new methods and investigations (e.g., modelling and constrained joint inversions using the fuzzy c-mean method on tetrahedral meshes) bring us much closer to solving the problem in this corridor. This research project is a part of the CMIC Footprints project, and is a very challenging exploration problem and very useful if successful for many places in Canada, not just the Athabasca Basin and uranium exploration. The Athabasca Basin is a Proterozoic sedimentary basin which supplies around 20% of the world's uranium. The uranium deposits are surrounded by alteration zones near the unconformity between Proterozoic sedimentary rocks and the Archean and Aphebian metamorphic basement. The sedimentary rocks are covered by Quaternary glacial deposits. Because of the small size of uranium deposits and their location at depth, geophysical methods look for structures which host the uranium deposits, for example, electromagnetic (EM) methods can locate graphitic faults. The gravity method can potentially detect the alteration zones. The seismic method can image the unconformity and basement faults. And, magnetic data can delineate basement structures. The benefit of using multiple datatypes can provide complementary information (e.g. the seismic and gravity). These methods can be used for the overburden stripping as well. In the Athabasca Basin, overburden can be conductive while density and seismic velocity of the overburden is less than the sandstone. Some rocks in unconsolidated glacial deposits have magnetic susceptibilities (e.g. granite), whereas sandstone is non-magnetic. Based on these features, the synthetic modelling and inversion of the geophysical data are performed for (mainly) the overburden characterization as well as reconstructing the geological structure in depth. Magnetic, gravity, first-arrival seismic traveltimes and time- and frequency-domain electromagnetic data are synthetized using forward modelling of 2D and 3D models. For inversion methods, independent, joint and constrained methods are applied for 1D, 2D and 3D cases. Independent inversions of the seismic refraction data as well as the electromagnetic data are useful methods for reconstructing the base of the overburden, unlike the independent inversions of gravity and magnetic data. The joint inversion of gravity and seismic refraction data is able well to reconstruct the variable thickness of the overburden better and sharper than the independent inversions. After applying the thickness of the overburden (obtained from the joint inversion) in the constrained independent inversion of gravity data, the location of alteration zone is apparent at depths. The joint inversion of magnetic and gravity data was able to reconstruct the basement blocks, the sandstone and the unconformity; furthermore the base of overburden can be detected after using the constrained joint inversion of magnetic and gravity methods. This method cannot show the alteration zone, but it can show the intersection of the fault with the unconformity where the mineralization can occur. For the electromagnetic method, results show that frequency and time-domain methods can be used for determining the location of the interface between overburden and sandstone and the location of the graphitic faults, respectively.
Download or read book Uranium Exploration Case Histories written by International Atomic Energy Agency and published by . This book was released on 1981 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Uranium Deposits of the Athabasca Basin written by International Association on the Genesis of Ore Deposits. Symposium and published by . This book was released on 1990 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Application of Seismic and Audiomagnetotelluric Methods to Uranium Exploration in the Athabasca Basin written by Saskatchewan. Saskatchewan Industry and Resources and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Uranium Mining Development in Northern Saskatchewan written by Joint Federal-Provincial Panel on Uranium Mining Developments in Northern Saskatchewan (Canada) and published by . This book was released on 1993 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Midwest Uranium Mine Project Cigar Lake Uranium Mine Project Cumulative Observations written by Joint Federal-Provincial Panel on Uranium Mining Developments in Northern Saskatchewan (Canada) and published by Panel Publishers. This book was released on 1997 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Download or read book First Interim Report on Uranium Exploration written by British Columbia. Royal Commission of Inquiry, Health and Environmental, Uranium Mining and published by . This book was released on 1979 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Exxon uranium exploration written by Exxon Uranium Exploration And Navajo Nation and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Commissioners First Interim Report on Uranium Exploration written by British Columbia. Royal Commission of Inquiry, Health and Environmental Protection, Uranium Mining and published by . This book was released on 1979 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development Stratigraphy and Summary Diagenetic History of the Athabasca Basin Early Proterozoic of Alberta and Its Relation to Uranium Potential written by Paul Ramaekers and published by . This book was released on 2004 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
