01542oam 2200421 450 991070729680332120160520134721.0(CKB)5470000002462535(OCoLC)891382392(EXLCZ)99547000000246253520140926d1968 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierPetrography and petrology of volcanic rocks in the Mount Jefferson area, High Cascade Range, Oregon /by Robert C. Greene[Washington, D.C.] :United States Department of the Interior, Geological Survey,1968.Washington :United States Government Printing Office.1 online resource (vii, 48 pages) illustrationsGeological Survey bulletin ;1251-GContributions to general geologyTitle from title screen (viewed September 15, 2014).Includes bibliographical references (pages 46-48).Igneous rocksOregonJefferson, MountPetrologyOregonJefferson, MountIgneous rocksPetrologyGreene Robert C.55338Geological Survey (U.S.),COPCOPOCLCOGPOBOOK9910707296803321Petrography and petrology of volcanic rocks in the Mount Jefferson area, High Cascade Range, Oregon3493968UNINA