Cayar Submarine Canyon

Abstract

Research Article| December 01, 1968 Cayar Submarine Canyon ROBERT S DIETZ; ROBERT S DIETZ ESSA, Atlantic Oceanographic Laboratories, Miami, Florida Search for other works by this author on: GSW Google Scholar HARLEY J KNEBEL; HARLEY J KNEBEL ESSA, Atlantic Oceanographic Laboratories, Miami, Florida Search for other works by this author on: GSW Google Scholar LEE H SOMERS LEE H SOMERS Department of Meteorology and Oceanography, University of Michigan, Ann Arbor, Michigan Search for other works by this author on: GSW Google Scholar Author and Article Information ROBERT S DIETZ ESSA, Atlantic Oceanographic Laboratories, Miami, Florida HARLEY J KNEBEL ESSA, Atlantic Oceanographic Laboratories, Miami, Florida LEE H SOMERS Department of Meteorology and Oceanography, University of Michigan, Ann Arbor, Michigan Publisher: Geological Society of America Received: 20 Sep 1968 First Online: 02 Mar 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Copyright © 1968, The Geological Society of America, Inc. Copyright is not claimed on any material prepared by U.S. government employees within the scope of their employment. GSA Bulletin (1968) 79 (12): 1821–1828. https://doi.org/10.1130/0016-7606(1968)79[1821:NADCSC]2.0.CO;2 Article history Received: 20 Sep 1968 First Online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation ROBERT S DIETZ, HARLEY J KNEBEL, LEE H SOMERS; Cayar Submarine Canyon. GSA Bulletin 1968;; 79 (12): 1821–1828. doi: https://doi.org/10.1130/0016-7606(1968)79[1821:NADCSC]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 SocietyGSA Bulletin Search Advanced Search Abstract The characteristics of the Cayar Submarine Canyon off the coast of Senegal suggest that its evolution was controlled by submarine processes. This well-delineated, hitherto-unsurveyed canyon originates near the shoreline (10 to 20 m deep) on the upcurrent side of the Cape Verde peninsula and extends downslope to the oceanic basin. Its channel remains a prominent feature at 1800 fm (3294 m); its maximum width is 5 nautical miles (9 km).The Cayar Canyon confirms the conditions which attend the development of canyons up-current from headlands: a supply of sediment available at the canyon head, a steep nearshore gradient, and a decrease in longshore current transport. The conspicuous absence of fluvial influence and the apparent lack of direct tectonic involvement in recent geologic time suggest that the canyon was developed by the movement of sediment downslope in response to a localized over-accumulation of continental detritus. This canyon is probably second only to the Congo Canyon in geologic importance around Africa. 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.