01968oam 2200577 450 991070714320332120160504165324.0(CKB)5470000002462067(OCoLC)889723630(EXLCZ)99547000000246206720140901d1989 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierBarite nodules in Devonian shales and mudstones of western Virginia /by Sandra H.B. Clark and Elwin L. Mosier[Reston, Va.] :Department of the Interior, U.S. Geological Survey,1989.[Washington, D.C.] :United States Government Printing Office.1 online resource (iv, 30 pages) illustrationsU.S. Geological Survey bulletin ;1880Title from title screen (viewed Aug. 28, 2014)."Barite nodules in western Virginia"--Page 4 of cover.Includes bibliographical references (pages 27-30).Barite nodules in western VirginiaBariteAppalachian RegionBariteVirginiaGeology, StratigraphicDevonianBaritefastDevonian Geologic PeriodfastGeology, StratigraphicfastAppalachian RegionfastVirginiafastBariteBariteGeology, StratigraphicBarite.Devonian Geologic Period.Geology, Stratigraphic.Clark Sandra H. B.1398343Mosier Elwin L.Geological Survey (U.S.),COPCOPOCLCOOCLCFGPOBOOK9910707143203321Barite nodules in Devonian shales and mudstones of western Virginia3529535UNINA