02244oam 2200613 450 991070671430332120180131085457.0(CKB)5470000002458318(OCoLC)896810234(OCoLC)995470000002458318(EXLCZ)99547000000245831820141123d1973 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierThe Portage Lake Volcanics (Middle Keweenawan) on Isle Royale, Michigan /by N. King Huber; prepared in cooperation with the National Park ServiceWashington :United States Department of the Interior, Geological Survey,1973.1 online resource (iv, C32 pages) illustrations, mapGeological Survey professional paper ;754-CTitle from title screen (viewed October 2, 2014)."The Geology of Isle Royale National Park, Michigan."Includes bibliographical references (pages C30-C32).Portage Lake Volcanics GeologyMichiganIsle RoyaleGeology, StratigraphicPrecambrianVolcanic ash, tuff, etcMichiganIsle RoyaleGeologyfastGeology, StratigraphicfastPrecambrian Geologic PeriodfastVolcanic ash, tuff, etcfastPortage Lake Volcanics (Mich.)MichiganIsle RoyalefastMichiganPortage Lake VolcanicsfastGeologyGeology, StratigraphicVolcanic ash, tuff, etc.Geology.Geology, Stratigraphic.Precambrian Geologic Period.Volcanic ash, tuff, etc.Huber N. King(Norman King),1926-1393971Geological Survey (U.S.),United States.National Park Service.COPCOPOCLCOOCLCFGPOBOOK9910706714303321The Portage Lake Volcanics (Middle Keweenawan) on Isle Royale, Michigan3476737UNINA