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100   $a20140802d1959      ua             0
101 0 $aeng
135   $aurn||||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aLead-alpha age determinations of accessory minerals of igneous rocks (1953-1957) /$fby Howard W. Jaffe, Claude L. Waring, and Helen W. Worthing
210  1$aWashington, D.C. :$cUnited States Department of the Interior, Geological Survey,$d1959.
210  2$aWashington, D.C. :$cGovernment Printing Office.
215   $a1 online resource (iii, 65-148 pages) $ccharts
225 1 $aGeological Survey bulletin ;$v1097-B
300   $a"This report concerns work done in part on behalf of the U. S. Atomic Energy Commisionand is published with the permission of the Commission."
300   $aTitle from title screen (viewed July 23, 2014).
320   $aIncludes bibliographical references (pages 145-148).
517   $aLead-alpha age determinations of accessory minerals of igneous rocks 
606   $aGeological time
606   $aIgneous rocks
606   $aOres$xSampling and estimation
606   $aRadioactive prospecting
606   $aGeological time$2fast
606   $aIgneous rocks$2fast
606   $aOres$xSampling and estimation$2fast
606   $aRadioactive prospecting$2fast
615  0$aGeological time.
615  0$aIgneous rocks.
615  0$aOres$xSampling and estimation.
615  0$aRadioactive prospecting.
615  7$aGeological time.
615  7$aIgneous rocks.
615  7$aOres$xSampling and estimation.
615  7$aRadioactive prospecting.
700   $aJaffe$b Howard W.$01414318
702   $aWaring$b C. L$g(Claude L.),
702   $aWorthing$b Helen W.
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$bGPO
906   $aBOOK
912   $a9910707446903321
996   $aLead-alpha age determinations of accessory minerals of igneous rocks (1953-1957)$93513231
997   $aUNINA