25 resultados para sandstone

em University of Michigan


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Mode of access: Internet.

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Under contract between the University of Utah and the U.S. Atomic Energy Commission, the writer has carried on a field and laboratory investigation of the uranium deposits in the Salt Wash sandstone of the Colorado Plateau.

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Reprint. Originally published: London : Geological Society of London. (Geol. trans. 2nd ser. ; v. 4).

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Chapter by Watson and Hess was previously issued as Bull. 530-P, U.S. Geological Survey, 1912; chapter by Stose was previously issued as Bull. 530, pt. 1, U.S. Geological Survey, 1911.

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"DNA 6033F."

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This report represents an attempt to use quantitative petrography to elucidate criteria for differentiating ore-bearing from barren sediments in the Salt Wash member of the Morrison formation of the Colorado Plateau. The main premise upon which this approach is based is that the factors which determine whether a sediment contains ore or not is a function largely, if not solely, of the characteristics of the sedimentary rock. It follows that if this premise is true, then the petrographic characteristics of a sediment containing ore should differ from those of the sediments which are barren.