02377oam 2200649 450 991070740290332120160909142601.0(CKB)5470000002465504(OCoLC)891382960(EXLCZ)99547000000246550420140926d1971 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierThe Chopawamsic Formation-- a new stratigraphic unit in the Piedmont of northeastern Virginia /by D.L. Southwick, John C. Reed, Jr., and R.B. Mixon[Washington, D.C.] :United States Department of the Interior, Geological Survey,1971.Washington :United States Government Printing Office.1 online resource (iii, 11 pages) illustrationsGeological Survey bulletin ;1324-DContributions to stratigraphyTitle from title screen (viewed September 15, 2014)."Description of a sequence of felsic, intermediate, and mafic metavolcanic and metasedimentary rocks."Includes bibliographical references (pages 10-11).Chopawamsic Formation-- GeologyVirginiaPrince William CountyGeologyVirginiaStafford CountyGeology, StratigraphicCambrianGeology, StratigraphicOrdovicianCambrian Geologic PeriodfastGeologyfastGeology, StratigraphicfastOrdovician Geologic PeriodfastVirginiaPrince William CountyfastVirginiaStafford CountyfastGeologyGeologyGeology, StratigraphicGeology, StratigraphicCambrian Geologic Period.Geology.Geology, Stratigraphic.Ordovician Geologic Period.Southwick D. L(David Leroy),1936-1401668Mixon Robert B.Reed John CalvinJr.,1930-Geological Survey (U.S.),COPCOPOCLCOOCLCFGPOBOOK9910707402903321The Chopawamsic Formation--3483174UNINA