LEADER 01877oam 2200397Ia 450 001 9910708193703321 005 20140329023357.0 035 $a(OCoLC)761220098 035 $a(MiFhGG)NCCO2012866 035 $a(CKB)4920000002447125 035 $a(EXLCZ)994920000002447125 100 $a20790606d1896 ua 0 101 0 $aeng 135 $aur|n||||||||n 200 10$aGeology of the Castle Mountain mining district, Montana$fby Walter Harvey Weed and Louis Valentine Pirsson 210 $aWashington $cGovt. Print. Off$d1896 215 $a1 online resource (164 p. , [17] plates) $cill., folded map 225 1 $aBulletin of the United States Geological Survey ;$vno. 139 225 1 $aNineteenth Century Collections Online: Science, Technology, and Medicine, Part I 300 $aIncludes index. 300 $aReproduction of the original from the Library of Congress. 320 $aIncludes bibliographical references. 327 $tIntroduction --$tTopography --$tStructural geology and geological history of Castle Mountain --$tStratified Rocks --$tIgneous rocks --$tMicroscopical petrography --$tMicroscopical petrography of the extrusive rocks --$tGeneral petrology of the Castle Mountain district --$tGlaciation of Castle Mountain --$tEconomic geology --$tMineralogy. 410 0$aBulletin of the United States Geological Survey ;$vno. 139. 410 0$aNineteenth Century Collections Online: Science, Technology, and Medicine, Part I. 606 $aGeology$zMontana 615 0$aGeology 700 $aWeed$b Walter Harvey$f1862-1944.$0819826 701 $aPirsson$b Louis V$g(Louis Valentine),$f1860-1919.$01394417 712 02$aGeological Survey (U.S.) 801 0$bMIGCL 801 1$bUtOrBLW 906 $aBOOK 912 $a9910708193703321 996 $aGeology of the Castle Mountain mining district, Montana$94129975 997 $aUNINA