02230oam 2200577 450 991070730090332120160519125159.0(CKB)5470000002462494(OCoLC)889600857(EXLCZ)99547000000246249420140829d1991 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierManganese contents of some sedimentary rocks of Paleozoic Age in Virginia /by Eric R. Force and Leslie J. Cox[Reston, Va.] :U.S. Department of the Interior, U.S. Geological Survey,1991.[Washington, D.C.] :United States Government Printing Office.1 online resource (various pagings) illustrations, mapU.S. Geological Survey Bulletin ;1916Title from title screen (viewed Aug. 20, 2014).Includes bibliographical references.pt. A. Manganese contents of some lower Paleozoic carbonate rocks of Virginia / by Eric R. Force -- pt. B. Manganese contents of some rocks of Silurian and Devonian Ages in northwest Virginia / by Leslie J. Cox.Geology, StratigraphicPaleozoicManganese oresGeologyVirginiaSedimentary rocksVirginiaAnalysisGeology, StratigraphicfastManganese oresGeologyfastPaleozoic Geologic PeriodfastSedimentary rocksAnalysisfastVirginiafastGeology, StratigraphicManganese oresGeologySedimentary rocksAnalysis.Geology, Stratigraphic.Manganese oresGeology.Paleozoic Geologic Period.Sedimentary rocksAnalysis.Force Eric R.1212693Cox Leslie J.Geological Survey (U.S.),COPCOPOCLCOOCLCFGPOBOOK9910707300903321Manganese contents of some sedimentary rocks of Paleozoic Age in Virginia3487266UNINA