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Major right-lateral faulting in the Franciscan assemblage of northern California in late Tertiary time

1982; Geological Society of America; Volume: 10; Issue: 7 Linguagem: Inglês

10.1130/0091-7613(1982)10 2.0.co;2

1943-2682

Harvey M. Kelsey, Danny K. Hagans,

Geochemistry and Geologic Mapping

Research Article| July 01, 1982 Major right-lateral faulting in the Franciscan assemblage of northern California in late Tertiary time Harvey M. Kelsey; Harvey M. Kelsey 1National Park Service, Redwood National Park, Arcata, California 95521 Search for other works by this author on: GSW Google Scholar Danny K. Hagans Danny K. Hagans 1National Park Service, Redwood National Park, Arcata, California 95521 Search for other works by this author on: GSW Google Scholar Author and Article Information Harvey M. Kelsey 1National Park Service, Redwood National Park, Arcata, California 95521 Danny K. Hagans 1National Park Service, Redwood National Park, Arcata, California 95521 Publisher: Geological Society of America First Online: 01 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1982) 10 (7): 387–391. https://doi.org/10.1130/0091-7613(1982)10 2.0.CO;2 Article history First Online: 01 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Harvey M. Kelsey, Danny K. Hagans; Major right-lateral faulting in the Franciscan assemblage of northern California in late Tertiary time. Geology 1982;; 10 (7): 387–391. doi: https://doi.org/10.1130/0091-7613(1982)10 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 A minimum of 75 km of right-lateral fault displacement occurred within the Franciscan assemblage of northern California, most likely in late Tertiary time. This displacement is inferred from the present position of two geologically unrelated units, the rocks near Black Lassie, California, and the Redwood Creek schist. The Black Lassie rocks show at least 75 km of northward displacement from their source terrane within the Coast Range ophiolite. Although no conclusive evidence of northward transport for the Redwood Creek schist is available, the geologic setting of the schist and the nature of the faults that bound it strongly suggest that the Redwood Creek schist has also been laterally transported many tens of kilometres northward. We propose that both these units moved northward by means of one or a few major north-northwest–trending right-lateral faults that were active in the forearc basin off the California coast during right-oblique subduction of the Farallon plate under the North American plate in late Tertiary time. 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.