02080oam 2200589 450 991070972080332120180712095042.0(CKB)5470000002473042(OCoLC)896811360(OCoLC)995470000002473042(EXLCZ)99547000000247304220141123d1993 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierStratigraphy of the Cretaceous Hornbrook Formation, southern Oregon and northern California /by Tor H. NilsenWashington :U.S. Department of the Interior, U.S. Geological Survey,1993.1 online resource (iv, 89 pages) illustrations, maps (some color) +1 plateU.S. Geological Survey professional paper ;1521"A stratigraphic division of the Hornbrook Formation into five nonmarine and marine members."Includes bibliographical references (pages 77-82).Geology, StratigraphicCretaceousFormations (Geology)CaliforniaFormations (Geology)OregonCretaceous Geologic PeriodfastGeologyfastGeology, StratigraphicfastHornbrook Formation (Calif. and Or.)CaliforniafastOregonfastUnited StatesHornbrook FormationfastGeology, StratigraphicFormations (Geology)Formations (Geology)Cretaceous Geologic Period.Geology.Geology, Stratigraphic.Nilsen Tor Helge1388950Geological Survey (U.S.),COPCOPOCLCOOCLCFSOSOCLCAGPOBOOK9910709720803321Stratigraphy of the Cretaceous Hornbrook Formation, southern Oregon and northern California3518913UNINA