02308nem 2200541Ia 450 991070120780332120111221091200.0(CKB)5470000002416984(OCoLC)768994641(EXLCZ)99547000000241698420111221d2002 ua engb|||||||||||||||||||||hurcn|||||||||crdrdacontentcrdamediacrrdacarrierStratigraphic framework of Cambrian and Ordovician rocks in the central Appalachian Basin from Richland County, Ohio to Rockingham County, Virginia[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-2264Title from title screen (viewed on Dec. 20, 2011).Includes text, location map, correlation chart, and table.Includes bibliographical references.Cambrian and Ordovician rocks in the central Appalachian Basin from Richland County, Ohio to Rockingham County, VirginiaGeology, StratigraphicCambrianCharts, diagrams, etcGeology, StratigraphicOrdovicianCharts, diagrams, etcGeology, StructuralAppalachian BasinCharts, diagrams, etcGeologyAppalachian BasinCharts, diagrams, etcGeological cross sectionsAppalachian BasinAppalachian BasinCharts, diagrams, etcGeology, StratigraphicGeology, StratigraphicGeology, StructuralGeologyGeological cross sectionsRyder Robert T1395259Crangle Robert D.Jr.1031917Geological Survey (U.S.)GPOGPOBOOK9910701207803321Stratigraphic framework of Cambrian and Ordovician rocks in the central Appalachian Basin from Richland County, Ohio to Rockingham County, Virginia3503777UNINA