Comparison of Miocene provincial foraminiferal stages to coccolith zones in the California Continental Borderland

Abstract

Research Article| April 01, 1979 Comparison of Miocene provincial foraminiferal stages to coccolith zones in the California Continental Borderland James K. Crouch; James K. Crouch 1U.S. Geological Survey, Scripps Institution of Oceanography, La Jolla, California 92093 Search for other works by this author on: GSW Google Scholar David Bukry David Bukry 1U.S. Geological Survey, Scripps Institution of Oceanography, La Jolla, California 92093 Search for other works by this author on: GSW Google Scholar Author and Article Information James K. Crouch 1U.S. Geological Survey, Scripps Institution of Oceanography, La Jolla, California 92093 David Bukry 1U.S. Geological Survey, Scripps Institution of Oceanography, La Jolla, California 92093 Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1979) 7 (4): 211–215. https://doi.org/10.1130/0091-7613(1979)7<211:COMPFS>2.0.CO;2 Article history First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation James K. Crouch, David Bukry; Comparison of Miocene provincial foraminiferal stages to coccolith zones in the California Continental Borderland. Geology 1979;; 7 (4): 211–215. doi: https://doi.org/10.1130/0091-7613(1979)7<211:COMPFS>2.0.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract Biostratigraphic ages determined by planktic coccoliths and benthic foraminifera for the same core samples from the California Continental Borderland suggest that a significant overlap exists among provincial Miocene stages of California and that some of the benthic foraminifera commonly used to recognize these stages are time-transgressive. For example, samples assigned to the middle Miocene Discoaster exilis Zone of coccoliths (∼ 14 ± 1 m.y.) are also assigned to the Relizian, Luisian, and lower Mohnian Stages on the basis of benthic foraminifera. Significantly, most past and current geologic interpretations of Cenozoic marine sequences in California rely heavily on provincial benthic foraminiferal stages and zones. Thus, the apparent overlapping of provincial stages has serious implications for geologic studies of the California Cenozoic and should be further investigated in sections onshore. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.