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100   $a20141123d1978      ua             0
101 0 $aeng
135   $aurmn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 14$aThe potential for porphyry copper-molybdenum deposits in the Eastern United States $ea descriptive resume? of deposits of the porphyry type and an evaluation of potential areas for discovery of new deposits /$fby Robert Gordon Schmidt
210  1$aWashington :$cUnited States Department of the Interior, Geological Survey,$d1978.
215   $a1 online resource (v, E31 pages) $cillustrations, maps
225 1 $aGeological Survey professional paper ;$v907E
300   $aTitle from title screen (viewed October 6, 2014).
300   $a"A descriptive resume of deposits of the porphyry type and an evaluation of potential areas for discovery of new deposits."
320   $aIncludes bibliographical references (pages E29-E31).
517   $aPotential for porphyry copper-molybdenum deposits in the Eastern United States 
606   $aCopper ores$zUnited States
606   $aMolybdenum ores$zUnited States
606   $aPorphyry$zUnited States
606   $aCopper ores$2fast
606   $aMolybdenum ores$2fast
607   $aUnited States$2fast
615  0$aCopper ores
615  0$aMolybdenum ores
615  0$aPorphyry
615  7$aCopper ores.
615  7$aMolybdenum ores.
700   $aSchmidt$b Robert Gordon$f1924-$01392401
712 02$aGeological Survey (U.S.),
801  0$bCOP
801  1$bCOP
801  2$bOCLCO
801  2$bOCLCF
801  2$bGPO
906   $aBOOK
912   $a9910706963903321
996   $aThe potential for porphyry copper-molybdenum deposits in the Eastern United States$93550372
997   $aUNINA