Earthflows in Franciscan melange, Van Duzen River basin, California

Research Article| June 01, 1978 Earthflows in Franciscan melange, Van Duzen River basin, California Harvey M. Kelsey Harvey M. Kelsey 1National Park Service, Redwood National Park, Orick, California 95555 Search for other works by this author on: GSW Google Scholar Author and Article Information Harvey M. Kelsey 1National Park Service, Redwood National Park, Orick, California 95555 Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1978) 6 (6): 361–364. https://doi.org/10.1130/0091-7613(1978)6<361:EIFMVD>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 Harvey M. Kelsey; Earthflows in Franciscan melange, Van Duzen River basin, California. Geology 1978;; 6 (6): 361–364. doi: https://doi.org/10.1130/0091-7613(1978)6<361:EIFMVD>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 Large earthflows are a significant source of sediment in the highly sheared and easily eroded Franciscan melange of the northern California Coast Ranges. They are active during the winter wet season, and their movement averages 2.4 to 4.0 m/yr. Fluvial sediment yield from the gullied and broken earthflow surface is about equal to sediment yield by mass movement. Indirect evidence suggests that changes in vegetation cover due to grazing beginning in the nineteenth century may have increased the rate of earthflow movement. 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.