LEADER 01976oam 2200481 450 001 9910704177903321 005 20151123082300.0 035 $a(CKB)5470000002437883 035 $a(OCoLC)886560136 035 $a(EXLCZ)995470000002437883 100 $a20140812d1986 ua 0 101 0 $aeng 135 $aurmn||||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aGeochemical reconnaissance of late Proterozoic volcanic and mafic plutonic rocks of the Al ?Awshaziyah quadrangle and related rocks in the Qufar quadrangle, Northern Arabian Shield /$fby Gerhard W. Leo 210 1$a[Reston, Va.] :$cDepartment of the Interior, U.S. Geological Survey,$d1986. 210 2$a[Washington, D.C.] :$cUnited States Government Printing Office. 215 $a1 online resource (iii, 16 pages) $cillustrations, maps 225 1 $aU.S. Geological Survey bulletin ;$v1680 300 $aTitle from title screen (viewed Aug. 11, 2014). 320 $aIncludes bibliographical references. 606 $aGeochemistry$zSaudi Arabia$z?Awsaji?yah Region 606 $aGeochemistry$zSaudi Arabia$zQufa?r Region 606 $aGeology, Stratigraphic$yPrecambrian 606 $aVolcanic ash, tuff, etc$zSaudi Arabia$z?Awsaji?yah Region 606 $aVolcanic ash, tuff, etc$zSaudi Arabia$zQufa?r Region 615 0$aGeochemistry 615 0$aGeochemistry 615 0$aGeology, Stratigraphic 615 0$aVolcanic ash, tuff, etc. 615 0$aVolcanic ash, tuff, etc. 700 $aLeo$b Gerhard W.$01388949 712 02$aGeological Survey (U.S.), 801 0$bCOP 801 1$bCOP 801 2$bOCLCO 801 2$bGPO 906 $aBOOK 912 $a9910704177903321 996 $aGeochemical reconnaissance of late Proterozoic volcanic and mafic plutonic rocks of the Al ?Awshaziyah quadrangle and related rocks in the Qufar quadrangle, Northern Arabian Shield$93518958 997 $aUNINA