02035oam 2200529 450 991070696630332120180410082155.0(CKB)5470000002459813(OCoLC)896810612(OCoLC)995470000002459813(EXLCZ)99547000000245981320141123d1978 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierMixed-layer clay in the Pierre Shale and equivalent rocks, northern Great Plains region /by Leonard G. SchultzWashington :United States Department of the Interior, Geological Survey,1978.1 online resource (iv, 28 pages) illustrations, mapGeological Survey professional paper ;1064-ATitle from title screen (viewed October 6, 2014)."Geochemistry of the Pierre shale and equivalent rocks of the late Cretaceous age.""X-ray diffraction techniques for interpretation of mixed-layer illite-smectite clay, chemical composition of the clay, and developmental history of the clay."Includes bibliographical references (pages 27-28).Clay mineralsGreat PlainsGeology, StratigraphicCretaceousClay mineralsfastCretaceous Geologic PeriodfastGeology, StratigraphicfastGreat PlainsfastClay mineralsGeology, StratigraphicClay minerals.Cretaceous Geologic Period.Geology, Stratigraphic.Schultz Leonard Gene1926-1400946Geological Survey (U.S.),COPCOPOCLCOOCLCFGPOBOOK9910706966303321Mixed-layer clay in the Pierre Shale and equivalent rocks, northern Great Plains region3495554UNINA