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100   $a20140929d1969      ua             0
101 0 $aeng
135   $aurmn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aDistribution of thorium, uranium, and potassium in igneous rocks of the Boulder batholith region, Montana, and its bearing on radiogenic heat production and heat flow /$fby Robert I. Tilling and David Gottfried
210  1$aWashington :$cUnited States Department of the Interior, Geological Survey,$d1969.
215   $a1 online resource (iii, E29 pages) $cillustrations, maps
225 1 $aGeological Survey professional paper ;$v614-E
225 1 $aShorter contributions to general geology
300   $aTitle from title screen (viewed September 24, 2014).
300   $a"A study of the relationship between content of heat-producing elements and host-rock chemistry and heat flow."
320   $aIncludes bibliographical references (pages E19-E22).
606   $aEarth temperature$zMontana$zBoulder Batholith
606   $aIgneous rocks$zMontana$zBoulder Batholith
606   $aPotassium
606   $aThorium ores$zMontana$zBoulder Batholith
606   $aUranium ores$zMontana$zBoulder Batholith
615  0$aEarth temperature
615  0$aIgneous rocks
615  0$aPotassium.
615  0$aThorium ores
615  0$aUranium ores
700   $aTilling$b Robert I.$052698
702   $aGottfried$b David
712 02$aGeological Survey (U.S.),
801  0$bCOP
801  1$bCOP
801  2$bOCLCO
801  2$bGPO
906   $aBOOK
912   $a9910705829803321
996   $aDistribution of thorium, uranium, and potassium in igneous rocks of the Boulder batholith region, Montana, and its bearing on radiogenic heat production and heat flow$93516764
997   $aUNINA