02101oam 2200481 450 991070730620332120160803161157.0(CKB)5470000002464461(OCoLC)891382868(EXLCZ)99547000000246446120140926d1970 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierPrecambrian melasyenite of Ute Creek, San Juan Mountains, Colorado -- chemistry, petrology, and strontium isotopes hornblende-biotite melasyenite, exposed in an erosional window through Tertiary and Quaternary rocks, is similar in age and composition to rocks near Powerhorn, Colorado /by Fred Barker, Z.E. Peterman, and R.F. Marvin[Washington, D.C.] :United States Department of the Interior, Geological Survey,1970.Washington :United States Government Printing Office.1 online resource (iii, 15 pages) illustrationsGeological Survey bulletin ;1311-CContributions to general geologyTitle from title screen (viewed September 15, 2014).Includes bibliographical references (pages 14-15).Precambrian melasyenite of Ute Creek, San Juan Mountains, Colorado -- chemistry, petrology, and strontium isotopes ChemistrySan Juan Mountains (Colo. and N.M.)PetrologySan Juan Mountains (Colo. and N.M.)StrontiumIsotopesSan Juan Mountains (Colo. and N.M.)ChemistryPetrologyStrontiumIsotopesBarker Fred1928-1398492Marvin Richard F.Peterman Zell E.Geological Survey (U.S.),COPCOPOCLCOGPOBOOK9910707306203321Precambrian melasyenite of Ute Creek, San Juan Mountains, Colorado -- chemistry, petrology, and strontium isotopes3464106UNINA