LEADER 02027oam 2200517 450 001 9910707781403321 005 20161028135656.0 035 $a(CKB)5470000002466731 035 $a(OCoLC)886547014 035 $a(EXLCZ)995470000002466731 100 $a20140812d1973 ua 0 101 0 $aeng 135 $aurbn||||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aSturgis Formation (Upper Pennsylvanian), a new map unit in the western Kentucky coal field /$fby Thomas M. Kehn ; work done in cooperation with the Kentucky Geological Survey 210 1$a[Washington, D.C.] :$cUnited States Department of the Interior, Geological Survey,$d1973. 210 2$aWashington :$cUnited States Government Printing Office. 215 $a1 online resource (iii, 24 pages) $cillustrations, maps 225 1 $aGeological Survey bulletin ;$v1394-B 225 1 $aContributions to stratigraphy 300 $a"A clarification and revision of the stratigraphic terminology and a description of the rocks of Late Pennsylvanian age." 320 $aIncludes bibliographical references (pages 23-24). 517 $aSturgis Formation 606 $aGeology, Stratigraphic$yPennsylvanian$xNomenclature 606 $aGeology, Stratigraphic$vNomenclature 606 $aGeology, Stratigraphic$2fast 606 $aPennsylvanian Geologic Period$2fast 608 $aTerminology.$2fast 615 0$aGeology, Stratigraphic$xNomenclature. 615 0$aGeology, Stratigraphic 615 7$aGeology, Stratigraphic. 615 7$aPennsylvanian Geologic Period. 700 $aKehn$b Thomas M.$01387860 712 02$aGeological Survey (U.S.), 712 02$aKentucky Geological Survey. 801 0$bCOP 801 1$bCOP 801 2$bOCLCO 801 2$bOCLCF 801 2$bGPO 906 $aBOOK 912 $a9910707781403321 996 $aSturgis Formation (Upper Pennsylvanian), a new map unit in the western Kentucky coal field$93488840 997 $aUNINA