02162oem 2200517Ia 450 991070120770332120200806095559.0(CKB)5470000002416985(OCoLC)768995183(EXLCZ)99547000000241698520111221d2002 ua engb|||||||||||||||||||||hurcn|||||||||crdrdacontentcrdamediacrrdacarrierStratigraphic framework of Cambrian and Ordovician rocks in the central Appalachian Basin from Lake County, Ohio, to Juniata County, Pennsylvania[electronic resource] /by Robert T. RyderOnline version 1.0 /rev. and digitized by Robert D. Crangle, Jr.Reston, VA :U.S. Dept. of the Interior, U.S. Geological Survey,2002.1 online resource (1 section) colorMiscellaneous investigations series ;map I-2200Title from title screen (viewed on Dec. 21, 2011).Includes text, table, chart, and location map.Includes bibliographical references.Cambrian and Ordovician rocks in the central Appalachian Basin from Lake County, Ohio, to Juniata County, PennsylvaniaGeology, StratigraphicCambrianCharts, diagrams, etcGeology, StratigraphicOrdovicianCharts, diagrams, etcGeology, StructuralAppalachian BasinCharts, diagrams, etcGeological cross sectionsAppalachian BasinGeology, StratigraphicGeology, StratigraphicGeology, StructuralGeological cross sectionsRyder Robert T1395259Crangle Robert D.Jr.1031917Geological Survey (U.S.)GPOGPOGPOBOOK9910701207703321Stratigraphic framework of Cambrian and Ordovician rocks in the central Appalachian Basin from Lake County, Ohio, to Juniata County, Pennsylvania3467711UNINA