02239oam 2200625 450 991070716380332120160427065704.0(CKB)5470000002461859(OCoLC)889723635(EXLCZ)99547000000246185920140901d1990 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierGeology of the Mount Aetna volcanic center, Chaffee and Gunnison counties, Colorado /by Priestley Toulmin, III and Jane M. Hammarstrom[Reston, Va.] :Department of the Interior, U.S. Geological Survey,1990.[Washington, D.C.] :United States Government Printing Office.1 online resource (v, 44 pages, 1 page of plates) illustrations, maps (some color)U.S. Geological Survey bulletin ;1864Title from title screen (viewed August 28, 2014).Includes bibliographical references (pages 39-42).GeologyColoradoChaffee CountyGeologyColoradoGunnison CountyVolcanic ash, tuff, etcColoradoChaffee CountyVolcanic ash, tuff, etcColoradoGunnison CountyVolcanismColoradoChaffee CountyVolcanismColoradoGunnison CountyGeologyfastVolcanic ash, tuff, etcfastVolcanismfastColoradoChaffee CountyfastColoradoGunnison CountyfastGeologyGeologyVolcanic ash, tuff, etc.Volcanic ash, tuff, etc.VolcanismVolcanismGeology.Volcanic ash, tuff, etc.Volcanism.Toulmin Priestley1407995Hammarstrom Jane MarieGeological Survey (U.S.),COPCOPOCLCOOCLCFGPOBOOK9910707163803321Geology of the Mount Aetna volcanic center, Chaffee and Gunnison counties, Colorado3490679UNINA