STRATIGRAPHY AND URANIUM DEPOSITS, LISBON VALLEY DISTRICT, SAN JUAN COUNTY, UTAH.

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作者：
Huber, Gary C.
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来源：
Colorado School of Mines Quarterly | 1980年 / 75卷 / 02期
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481 Geology and Geophysics - 504 Mines and Mining; Metal;
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摘要：
Uranium occurrences are scattered throughout southeastern Utah in the lower sandstones of the Triassic Chinle Formation. The Lisbon Valley district, however, is the only area with uranium deposits of substantial size. The stratigraphy of the Lisbon Valley district was investigated to determine the nature of the relationship between the mineralized areas and the lower Chinle sandstones. The geochemistry of the Lisbon Valley uranium deposits indicates a possible district-wide zoning. Interpretation of the elemental zoning associated with individual ore bodies suggests that humates overtaken by a geochemical oxidation-reduction interface may have led to formation of the uranium deposits. Refs.
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