LEADER 02101oam 2200481 450 001 9910707306203321 005 20160803161157.0 035 $a(CKB)5470000002464461 035 $a(OCoLC)891382868 035 $a(EXLCZ)995470000002464461 100 $a20140926d1970 ua 0 101 0 $aeng 135 $aurbn||||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aPrecambrian melasyenite of Ute Creek, San Juan Mountains, Colorado -- chemistry, petrology, and strontium isotopes $ehornblende-biotite melasyenite, exposed in an erosional window through Tertiary and Quaternary rocks, is similar in age and composition to rocks near Powerhorn, Colorado /$fby Fred Barker, Z.E. Peterman, and R.F. Marvin 210 1$a[Washington, D.C.] :$cUnited States Department of the Interior, Geological Survey,$d1970. 210 2$aWashington :$cUnited States Government Printing Office. 215 $a1 online resource (iii, 15 pages) $cillustrations 225 1 $aGeological Survey bulletin ;$v1311-C 225 1 $aContributions to general geology 300 $aTitle from title screen (viewed September 15, 2014). 320 $aIncludes bibliographical references (pages 14-15). 517 $aPrecambrian melasyenite of Ute Creek, San Juan Mountains, Colorado -- chemistry, petrology, and strontium isotopes 606 $aChemistry$zSan Juan Mountains (Colo. and N.M.) 606 $aPetrology$zSan Juan Mountains (Colo. and N.M.) 606 $aStrontium$xIsotopes$zSan Juan Mountains (Colo. and N.M.) 615 0$aChemistry 615 0$aPetrology 615 0$aStrontium$xIsotopes 700 $aBarker$b Fred$f1928-$01398492 702 $aMarvin$b Richard F. 702 $aPeterman$b Zell E. 712 02$aGeological Survey (U.S.), 801 0$bCOP 801 1$bCOP 801 2$bOCLCO 801 2$bGPO 906 $aBOOK 912 $a9910707306203321 996 $aPrecambrian melasyenite of Ute Creek, San Juan Mountains, Colorado -- chemistry, petrology, and strontium isotopes$93464106 997 $aUNINA