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Uranium series ages of corals from the upper Pleistocene Mulege terrace, Baja California Sur, Mexico

1987; Geological Society of America; Volume: 15; Issue: 2 Linguagem: Inglês

10.1130/0091-7613(1987)15 2.0.co;2

1943-2682

James Ashby, T. L. Ku, John A. Minch,

Geochemistry and Geologic Mapping

Research Article| February 01, 1987 Uranium series ages of corals from the upper Pleistocene Mulege terrace, Baja California Sur, Mexico James R. Ashby; James R. Ashby 1Department of Geological Sciences, San Diego State University, San Diego, California 921154Present address: Department of Earth and Space Sciences, University of California, Los Angeles, California 90024 Search for other works by this author on: GSW Google Scholar T. L. Ku; T. L. Ku 2Department of Geological Sciences, University of Southern California, Los Angeles, California 90007 Search for other works by this author on: GSW Google Scholar John A. Minch John A. Minch 3Department of Geology, Saddleback College, Mission Viejo, California 92692 Search for other works by this author on: GSW Google Scholar Geology (1987) 15 (2): 139–141. https://doi.org/10.1130/0091-7613(1987)15 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 R. Ashby, T. L. Ku, John A. Minch; Uranium series ages of corals from the upper Pleistocene Mulege terrace, Baja California Sur, Mexico. Geology 1987;; 15 (2): 139–141. doi: https://doi.org/10.1130/0091-7613(1987)15 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 Specimens of Porites californica contained in the sediments of upper Pleistocene, +12-m marine terrace deposits developed on the east coast of the Baja California (Mexico) peninsula at Mulege have yielded 230Th/234U dates of 124 ±5 and 144 ±7 ka (±1σ). These dates can be assigned to the well-documented late Pleistocene oxygen-isotope stage 5e high sea stand. Differences between the eustatic and present elevations of this terrace indicate average uplift rates since terrace formation of approximately 4 to 5 cm/1000 yr, indicating a relative stability and lack of major vertical deformation since the late Pleistocene. This terrace in the Mulege area can now be correlated with other marine terraces throughout the Baja California peninsula and southern California. 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.