LEADER 02009oam 2200577 450 001 9910704059103321 005 20151021072828.0 035 $a(CKB)5470000002437063 035 $a(OCoLC)886546730 035 $a(EXLCZ)995470000002437063 100 $a20140812d1984 ua 0 101 0 $aeng 135 $aurbn||||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aPrecambrian deposits of zinc-copper-lead sulfides and zinc spinel (gahnite) in Colorado /$fby Douglas M. Sheridan and William H. Raymond 210 1$a[Reston, Va.] :$cDepartment of the Interior, United States Geological Survey,$d1984. 210 2$aWashington :$cUnited States Government Printing Office. 215 $a1 online resource (iii, 31 pages) $cillustrations, map 225 1 $aGeological Survey bulletin ;$v1550 300 $aTitle from title screen (viewed Aug. 4, 2014). 320 $aIncludes bibliographical references (pages 28-31). 517 $aPrecambrian deposits of zinc-copper-lead sulfides and zinc spinel 606 $aSulfides$zColorado 606 $aGeology, Stratigraphic$yPrecambrian 606 $aGeology$zColorado 606 $aGeology$2fast 606 $aGeology, Stratigraphic$2fast 606 $aPrecambrian Geologic Period$2fast 606 $aSulfides$2fast 607 $aColorado$2fast 615 0$aSulfides 615 0$aGeology, Stratigraphic 615 0$aGeology 615 7$aGeology. 615 7$aGeology, Stratigraphic. 615 7$aPrecambrian Geologic Period. 615 7$aSulfides. 700 $aSheridan$b Douglas M.$f1921-$01393719 702 $aRaymond$b William H. 712 02$aGeological Survey (U.S.), 801 0$bCOP 801 1$bCOP 801 2$bOCLCO 801 2$bOCLCF 801 2$bGPO 906 $aBOOK 912 $a9910704059103321 996 $aPrecambrian deposits of zinc-copper-lead sulfides and zinc spinel (gahnite) in Colorado$93510334 997 $aUNINA