02009oam 2200577 450 991070405910332120151021072828.0(CKB)5470000002437063(OCoLC)886546730(EXLCZ)99547000000243706320140812d1984 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierPrecambrian deposits of zinc-copper-lead sulfides and zinc spinel (gahnite) in Colorado /by Douglas M. Sheridan and William H. Raymond[Reston, Va.] :Department of the Interior, United States Geological Survey,1984.Washington :United States Government Printing Office.1 online resource (iii, 31 pages) illustrations, mapGeological Survey bulletin ;1550Title from title screen (viewed Aug. 4, 2014).Includes bibliographical references (pages 28-31).Precambrian deposits of zinc-copper-lead sulfides and zinc spinel SulfidesColoradoGeology, StratigraphicPrecambrianGeologyColoradoGeologyfastGeology, StratigraphicfastPrecambrian Geologic PeriodfastSulfidesfastColoradofastSulfidesGeology, StratigraphicGeologyGeology.Geology, Stratigraphic.Precambrian Geologic Period.Sulfides.Sheridan Douglas M.1921-1393719Raymond William H.Geological Survey (U.S.),COPCOPOCLCOOCLCFGPOBOOK9910704059103321Precambrian deposits of zinc-copper-lead sulfides and zinc spinel (gahnite) in Colorado3510334UNINA