Uranium in Volcanic and Volcaniclastic Rocks
Author: American Association of Petroleum Geologists. Southwest Section. Meeting
Publisher:
Published: 1981
Total Pages: 348
ISBN-13:
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Author: American Association of Petroleum Geologists. Southwest Section. Meeting
Publisher:
Published: 1981
Total Pages: 348
ISBN-13:
DOWNLOAD EBOOKAuthor: Philip C. Goodell
Publisher:
Published: 1981-01-01
Total Pages: 339
ISBN-13: 9780608056135
DOWNLOAD EBOOKAuthor:
Publisher:
Published: 1985
Total Pages: 486
ISBN-13:
DOWNLOAD EBOOKAuthor: Philip C. Goodell
Publisher:
Published: 1981
Total Pages: 0
ISBN-13:
DOWNLOAD EBOOKAuthor: American Association of Petroleum Geologists. Southwest Section. Meeting
Publisher:
Published:
Total Pages: 0
ISBN-13: 9780891810179
DOWNLOAD EBOOKAuthor: Donald M. Burt
Publisher:
Published: 1980
Total Pages: 502
ISBN-13:
DOWNLOAD EBOOKAuthor: Richard Brian Wice
Publisher:
Published: 1982
Total Pages: 0
ISBN-13:
DOWNLOAD EBOOKRhyolitic volcanic and volcaniclastic rocks found in or on the margins of Tertiary basins that contain sandstone-type uranium deposits are considered by many workers to be the source rocks for the uranium. In southwestern Montana and adjacent Idaho three volcanic areas were mapped and evaluated by geochemical analysis. X-ray diffraction and petrographic studies to determine if the volcanics are good source rocks for uranium deposits in nearby Tertiary basins. Area I volcanics, south of Dillon, Montana, have radiometric ages, uranium, thorium and fluorine contents and petrography similar to the Post-Lowland Creek Volcanics in the Boulder Batholith region and are tentatively correlated with them. Area II volcanics, south of Salmon, Idaho, were locally erupted and are a small satellite field separate from the main Challis Volcanic field. Area III volcanics, south of Salmon, Idaho, along the gorge of the Salmon River, lie on the northeast edge of the main Challis field. Comparisons of the average uranium, thorium and fluorine contents of rhyolites and tuffs indicate that the uranium and thorium may have been lost as volatile fluoride complexes during eruption. Although some uranium may have been lost from tuffaceous rocks soon after their eruption, geochemical data suggest that uranium is not mobile during diagenetic alteration of the tuffs to clays and zeolites. The formation of the clays and zeolites may inhibit the migration of uranium by either lowering the permeability of the rock or by adsorption of uranium. This conclusion is supported by the observation that present-day groundwaters associated with tuffaceous sediments contain low uranium concentrations and are strongly undersaturated with respect to uranium. Hydrothermal solutions leached significant amounts of uranium from the welded tuffs near Ennis, Idaho. This uranium apparently was deposited in lignite-bearing beds within a nearby tuffaceous sandstone.
Author: Aaron Clement Waters
Publisher:
Published: 1978
Total Pages: 18
ISBN-13:
DOWNLOAD EBOOKAuthor: Christopher D. Henry
Publisher:
Published: 1978
Total Pages: 454
ISBN-13:
DOWNLOAD EBOOKAuthor: Fares Howari
Publisher: Elsevier
Published: 2021-11-02
Total Pages: 288
ISBN-13: 0323909930
DOWNLOAD EBOOKUranium Geology of the Middle East and North Africa demonstrates mining potential in the MENA region, with a special interest given to Uranium. The formation and origin of uranium deposits is of interest for uranium exploration and is necessary for the long-term sustainability of nuclear energy production. The book proposes a new classification system built on earlier classification with detailed new maps, explanatory diagrams, cross sections, helpful satellite images, etc. In addition, it explains why the occurrences, depositional and geological environments of uranium in the Middle East and North Africa vary from one country to another. Using various related recognition criteria, the book reports the potential uranium provinces in the Middle East and North Africa countries. The definition of these provinces is based on the existing geologic and tectonic settings, along with geochronological sequences and geochemical characteristics. Presents a comprehensive overview of uranium resources and resource potential across the Middle East and North Africa Proposes a new system of metallogenic and tectonic classification for uranium ore deposits Includes case studies from each country in the region