LEADER 01826oam 2200553 450 001 9910711423903321 005 20181016101159.0 035 $a(CKB)5470000002483805 035 $a(OCoLC)953266686 035 $a(OCoLC)995470000002483805 035 $a(EXLCZ)995470000002483805 100 $a20160708d1951 ua 0 101 0 $aeng 135 $aurbn||||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aVirgin Valley opal district, Humboldt County, Nevada /$fby M.H. Staatz and H.L. Bauer, Jr 210 1$aWashington, D.C. :$cUnited States Department of the Interior, Geological Survey,$d1951. 215 $a1 online resource (7 pages) $cmaps 225 1 $aGeological Survey circular ;$v142 300 $a"This report concerns work done on behalf of the U. S. Atomic Energy Commission and is published with the permission of the Commission." 606 $aCarnotite$zNevada$zHumboldt County 606 $aOpals$zNevada$zHumboldt County 606 $aUranium$zNevada$zHumboldt County 606 $aCarnotite$2fast 606 $aOpals$2fast 606 $aUranium$2fast 607 $aNevada$zHumboldt County$2fast 615 0$aCarnotite 615 0$aOpals 615 0$aUranium 615 7$aCarnotite. 615 7$aOpals. 615 7$aUranium. 700 $aStaatz$b Mortimer H$g(Mortimer Hay),$f1918-2004,$01385974 702 $aBauer$b Herman L$g(Herman Louis),$f1925- 712 02$aGeological Survey (U.S.), 712 02$aU.S. Atomic Energy Commission, 801 0$bCOP 801 1$bCOP 801 2$bOCLCO 801 2$bOCLCF 801 2$bOCLCA 801 2$bGPO 906 $aBOOK 912 $a9910711423903321 996 $aVirgin Valley opal district, Humboldt County, Nevada$93544628 997 $aUNINA