LEADER 01792oam  2200457   450 
001 9910704174603321
005 20151123162153.0
035   $a(CKB)5470000002437916
035   $a(OCoLC)886560198
035   $a(EXLCZ)995470000002437916
100   $a20140812d1987      ua             0
101 0 $aeng
135   $aurmn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aPetrographic and scanning electron microscope studies of samples from the Roberts Mountains and Popovich formations, Carlin Mine area, Eureka County, Nevada /$fby Augustus K. Armstrong [and three others]
210  1$a[Reston, Va.] :$cDepartment of the Interior, U.S. Geological Survey,$d1987.
210  2$aWashington :$cUnited States Government Printing Office.
215   $a1 online resource (iii, 23 pages) $cillustrations (some color), maps
225 1 $aU.S. Geological Survey bulletin ;$v1684
300   $aTitle from title screen (viewed Aug. 11, 2014).
320   $aIncludes bibliographical references.
606   $aPetrology$zNevada$zCarlin Mine Region
606   $aPhotomicrography
606   $aGold ores$zNevada$zCarlin Mine Region
607   $aRoberts Mountains Formation (Nev. and Utah)
607   $aPopovich Formation (Nev.)
615  0$aPetrology
615  0$aPhotomicrography.
615  0$aGold ores
700   $aArmstrong$b Augustus K.$01386763
712 02$aGeological Survey (U.S.),
801  0$bCOP
801  1$bCOP
801  2$bOCLCO
801  2$bGPO
906   $aBOOK
912   $a9910704174603321
996   $aPetrographic and scanning electron microscope studies of samples from the Roberts Mountains and Popovich formations, Carlin Mine area, Eureka County, Nevada$93461485
997   $aUNINA