Uranium, thorium, and other metal associations in silicic volcanic complexes of the northern basin and range : a preliminary report

Walker, George Walton, 1921-
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  • Microfiche. [Denver, Colo. : U.S. Geological Survey, 1981?]. 2 microfiches ; 11 x 15 cm.
  • One map on folded sheet in pocket.
  • Bibliography: leaves 43-45.
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