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Thermal-maturity trends within Franciscan rocks near Big Sur, California: Implications for offset along the San Gregorio–San Simeon–Hosgri fault zone

1995; Geological Society of America; Volume: 23; Issue: 9 Linguagem: Inglês

10.1130/0091-7613(1995)023 2.3.co;2

1943-2682

Michael B. Underwood, Matthew M. Laughland, Kevin L. Shelton, Richard L. Sedlock,

High-pressure geophysics and materials

Research Article| September 01, 1995 Thermal-maturity trends within Franciscan rocks near Big Sur, California: Implications for offset along the San Gregorio–San Simeon–Hosgri fault zone Michael B. Underwood; Michael B. Underwood 1Department of Geological Sciences, University of Missouri, Columbia, Missouri 65211 Search for other works by this author on: GSW Google Scholar Matthew M. Laughland; Matthew M. Laughland 2Mobil Research and Development, P.O. Box 650232, 3000 Pegasus Park Drive, Dallas, Texas 75265 Search for other works by this author on: GSW Google Scholar Kevin L. Shelton; Kevin L. Shelton 1Department of Geological Sciences, University of Missouri, Columbia, Missouri 65211 Search for other works by this author on: GSW Google Scholar Richard L. Sedlock Richard L. Sedlock 3Department of Geology, San Jose State University, San Jose, California 95192 Search for other works by this author on: GSW Google Scholar Geology (1995) 23 (9): 839–842. https://doi.org/10.1130/0091-7613(1995)023 2.3.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 Michael B. Underwood, Matthew M. Laughland, Kevin L. Shelton, Richard L. Sedlock; Thermal-maturity trends within Franciscan rocks near Big Sur, California: Implications for offset along the San Gregorio–San Simeon–Hosgri fault zone. Geology 1995;; 23 (9): 839–842. doi: https://doi.org/10.1130/0091-7613(1995)023 2.3.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 Conventional neotectonic interpretations place the Lucia and Point Sur subterranes of the Franciscan subduction complex on opposite sides of the San Gregorio–San Simeon–Hosgri dextral fault system and connect that system through the Sur fault zone. Our reconstructed paleotemperature contours, however, are not offset across the San Simeon segment, so differential displacement between the subterranes after peak heating appears to have been negligible. One explanation is that dextral slip on the faults has totaled only 5–10 km. A second possibility is that a discrete Hosgri–San Simeon segment extends offshore of the amalgamated Point Sur and Lucia subterranes and that an en echelon stepover transfers dextral slip eastward to the San Gregorio–Palo Colorado segment. In either case, the Sur fault zone appears to play a relatively insignificant role in the late Cenozoic tectonic evolution of central 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.