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100   $a20140802d1959      ua             0
101 0 $aeng
135   $aurn||||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aEvaluation of the lead-alpha (Larsen) method for determining ages of igneous rocks /$fby David Gottfried, Howard W. Jaffe, and Frank E. Senftle
210  1$aWashington, D.C. :$cUnited States Department of the Interior, Geological Survey,$d1959.
210  2$aWashington, D.C. :$cGovernment Printing Office.
215   $a1 online resource (iv, 63 pages) $ccharts, photographs
225 1 $aGeological Survey bulletin ;$v1097-A
300   $a"This report concerns work done in part on behalf of the U. S. Atomic Energy Commission and is published with the permission of the Commission."
300   $aTitle from title screen (viewed July 23, 2014).
320   $aIncludes bibliographical references (pages 58-63).
517   $aEvaluation of the lead-alpha 
606   $aGeological time
606   $aIgneous rocks
606   $aRadioactive dating
606   $aGeological time$2fast
606   $aIgneous rocks$2fast
606   $aRadioactive dating$2fast
615  0$aGeological time.
615  0$aIgneous rocks.
615  0$aRadioactive dating.
615  7$aGeological time.
615  7$aIgneous rocks.
615  7$aRadioactive dating.
700   $aGottfried$b David$01398152
702   $aJaffe$b Howard W.
702   $aSenftle$b F. E.
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   $a9910707447303321
996   $aEvaluation of the lead-alpha (Larsen) method for determining ages of igneous rocks$93487088
997   $aUNINA