8 resultados para INDIAN BLACK EARTH

em University of Michigan


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A reconnaissance for uranium was conducted in the Black Mountain-Yale Point area of Black Mesa, Arizona, from February to November 1954. Numerous uranium deposits were examined, which appear to be situated in areas of greater tectonic deformation and confined to a single stratigraphic zone in the Toreva formation of the Upper Cretaceous Mesaverde group. Locally the uranium appears to occur in the vicinity of carbonized plant material in quartzose sand lenses, within paleostream channel deposits.

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"Facsimile of the first edition ... The introduction and index prepared by W. W. Elwang and published by Lucas brothers, Columbia, Missouri, 1935."

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"Describes the film made by the Los Angeles County Sanitation Districts for the Federal solid waste management program under contract No. PH-OS-DQ-66."