02345oam 2200625 450 991070977730332120180620101829.0(CKB)5470000002472471(OCoLC)896811273(OCoLC)995470000002472471(EXLCZ)99547000000247247120141123d1990 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierGeology of volcanic and subvolcanic rocks of the Raton-Springer area, Colfax and Union counties, New Mexico /by Glenn R. Scott, Ray E. Wilcox, and Harald H. MehnertWashington :Department of the Interior, U.S. Geological Survey,1990.1 online resource (iv, 58 pages) illustrations, mapsU.S. Geological Survey professional paper ;1507"Descriptions, chemical analyses, and ages for an alkalic sill complex and for mafic feldspathoidal and basaltic effusive rocks."Includes bibliographical references (pages 57-58).Volcanic ash, tuff, etcNew MexicoColfax CountyVolcanic ash, tuff, etcNew MexicoUnion CountyPotassium-argon datingGeologyNew MexicoColfax CountyGeologyNew MexicoUnion CountyGeologyfastPotassium-argon datingfastVolcanic ash, tuff, etcfastNew MexicoColfax CountyfastNew MexicoUnion CountyfastVolcanic ash, tuff, etc.Volcanic ash, tuff, etc.Potassium-argon dating.GeologyGeologyGeology.Potassium-argon dating.Volcanic ash, tuff, etc.Scott Glenn R.1918-2012,1387152Wilcox Ray E(Ray Everett),1912-2012,Mehnert Harald H.Geological Survey (U.S.),COPCOPOCLCOOCLCFOCLCAGPOBOOK9910709777303321Geology of volcanic and subvolcanic rocks of the Raton-Springer area, Colfax and Union counties, New Mexico3527087UNINA