02434oam 2200649 450 991070625830332120171013111937.0(CKB)5470000002455854(OCoLC)891598849(OCoLC)995470000002455854(EXLCZ)99547000000245585420140929d1953 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierGeology and ore deposits of the Boulder County tungsten district, Colorado /by T. S. Lovering and Ogden Tweto; prepared in cooperation with the State of Colorado through the Colorado Geological Survey Board and the Colorado Metal Mining FundWashington :United States Department of the Interior, Geological Survey,1953.1 online resource (viii, 199 pages) illustrations, maps +27 platesGeological Survey professional paper ;245Title from title screen (viewed September 29, 2014).Includes bibliographical references (pages 192-196) and index.Mines and mineral resourcesColoradoBoulder CountyTungsten mines and miningColoradoBoulder CountyTungsten oresColoradoBoulder CountyGeologyColoradoBoulder CountyPetrologyColoradoBoulder CountyGeologyfastPetrologyfastTungsten mines and miningfastTungsten oresfastBoulder County (Colo.)ColoradoBoulder CountyfastMines and mineral resourcesTungsten mines and miningTungsten oresGeologyPetrologyGeology.Petrology.Tungsten mines and mining.Tungsten ores.Lovering T. S(Thomas Seward),1896-1991,1392397Tweto Ogden1912-1983,Geological Survey (U.S.),Colorado Geological Survey.Colorado State Metal Mining Fund.COPCOPOCLCOOCLCFGPOBOOK9910706258303321Geology and ore deposits of the Boulder County tungsten district, Colorado3504376UNINA