01468oam 2200409 450 991070569000332120170519105622.0(CKB)5470000002451493(OCoLC)891572398(OCoLC)995470000002451493(EXLCZ)99547000000245149320140929d1936 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierOrigin of the copper deposits of the Ducktown type in the southern Appalachian region /by Clarence S. RossWashington :United States Department of the Interior, Geological Survey,1935.1 online resource (v, 165 pages) illustrations, mapsProfessional paper ;179Title from title screen (viewed September 22, 2014).Includes bibliographical references and index.Copper mines and miningAppalachian MountainsCopper oresAppalachian MountainsCopper mines and miningCopper oresRoss Clarence S(Clarence Samuel),1880-1975,1388979Geological Survey (U.S.),COPCOPOCLCOGPOBOOK9910705690003321Origin of the copper deposits of the Ducktown type in the southern Appalachian region3450444UNINA