Search Results - "Gold mines and mining"
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Gold-silver mining districts, alteration zones, and paleolandforms in the Miocene Bodie Hills volcanic field, California and Nevada
Published: U.S. Department of the Interior, U.S. Geological Survey, 2015Get full textDescription: 1 online resource (xii, 160 pages) : color illustrations, maps (some color).
Government Document eBook -
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Contributions to economic geology (short papers and preliminary reports), 1912 : Part I. - Metals and nonmetals except fuels
Published: U.S. G.P.O., 1914Description: 563 pages : illustrations, xi plates, maps (some folded) ; 24 cm.Book