LEADER 02113oam  2200505   450 
001 9910709619203321
005 20180612085315.0
035   $a(CKB)5470000002472048
035   $a(OCoLC)896811188
035   $a(OCoLC)995470000002472048
035   $a(EXLCZ)995470000002472048
100   $a20141123d1993      ua             0
101 0 $aeng
135   $aurmn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aMineralogy, mineral chemistry, and paragenesis of gold, silver, and base-metal ores of the North Amethyst vein system, San Juan Mountains, Mineral County, Colorado /$fby Nora K. Foley [and three others]
210  1$aWashington :$cU.S. Department of the Interior, U.S. Geological Survey,$d1993.
215   $a1 online resource (iv, 39 pages) $cillustrations, maps
225 1 $aU.S. Geological Survey professional paper ;$v1537
300   $a"A study of progressive vein-related mineralization of structures in volcanic rocks of the San Luis and Bachelor calderas of the San Juan volcanic field of southwestern Colorado and its bearing on the economic potential of the area."
320   $aIncludes bibliographical references (pages 37-39).
606   $aGold ores$xGeology$zColorado$zMineral County
606   $aOre deposits$zColorado$zMineral County
606   $aOre deposits$zSan Juan Mountains (Colo. and N.M.)
606   $aGold ores$xGeology$2fast
606   $aOre deposits$2fast
607   $aColorado$zMineral County$2fast
615  0$aGold ores$xGeology
615  0$aOre deposits
615  0$aOre deposits
615  7$aGold ores$xGeology.
615  7$aOre deposits.
700   $aFoley$b N. K.$01391520
712 02$aGeological Survey (U.S.),
801  0$bCOP
801  1$bCOP
801  2$bOCLCO
801  2$bOCLCF
801  2$bGPO
906   $aBOOK
912   $a9910709619203321
996   $aMineralogy, mineral chemistry, and paragenesis of gold, silver, and base-metal ores of the North Amethyst vein system, San Juan Mountains, Mineral County, Colorado$93445365
997   $aUNINA