02310oam 2200625I 450 991070430000332120160310145214.0(CKB)5470000002438670(OCoLC)885006351(EXLCZ)99547000000243867020140731d1949 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierPreliminary report on the bedded manganese of the Lake Mead region, Nevada and Arizona /by V.E. McKelvey, J.H. Wiese, and V.H. Johnson[Washington, D.C.] :United States Department of the Interior, Geological Survey,1949.Washington :United States Government Printing Office.1 online resource (iii, 83-101 pages, 39-44 pages of plates) illustrations (some color), maps (some color)Bulletin / United States Department of the Interior, Geological Survey ;948-DStrategic minerals investigations ;1945Title from title screen (viewed July 16, 2014).Includes bibliographical references.Strategic minerals investigations, 1945, manganese deposits, Lake Mead regionMines and mineral resourcesMead, Lake (Ariz. and Nev.)Manganese oresMead, Lake (Ariz. and Nev.)GeologyMead, Lake (Ariz. and Nev.)GeologyfastManganese oresfastMines and mineral resourcesfastUnited StatesLake MeadfastMines and mineral resourcesManganese oresGeologyGeology.Manganese ores.Mines and mineral resources.McKelvey V. E(Vincent Ellis),1916-1392434Wiese John H.Johnson V. H.Geological Survey (U.S.),COPCOPOCLCOOCLCAOCLCFGPOOCLOCLCQGPOBOOK9910704300003321Preliminary report on the bedded manganese of the Lake Mead region, Nevada and Arizona3508689UNINA