BARCHAN-DUNE MOVEMENT IN IMPERIAL VALLEY, CALIFORNIA

Abstract

Research Article| February 01, 1964 BARCHAN-DUNE MOVEMENT IN IMPERIAL VALLEY, CALIFORNIA JOSEPH T LONG; JOSEPH T LONG TOPOGRAPHIC DIVISION, U. S. GEOLOGICAL SURVEY, MENLO PARK, CALIF.; CALIFORNIA INSTITUTE OF TECHNOLOGY, PASADENA, CALIF. Search for other works by this author on: GSW Google Scholar ROBERT P SHARP ROBERT P SHARP TOPOGRAPHIC DIVISION, U. S. GEOLOGICAL SURVEY, MENLO PARK, CALIF.; CALIFORNIA INSTITUTE OF TECHNOLOGY, PASADENA, CALIF. Search for other works by this author on: GSW Google Scholar GSA Bulletin (1964) 75 (2): 149–156. https://doi.org/10.1130/0016-7606(1964)75[149:BMIIVC]2.0.CO;2 Article history received: 12 Aug 1963 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 JOSEPH T LONG, ROBERT P SHARP; BARCHAN-DUNE MOVEMENT IN IMPERIAL VALLEY, CALIFORNIA. GSA Bulletin 1964;; 75 (2): 149–156. doi: https://doi.org/10.1130/0016-7606(1964)75[149:BMIIVC]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 movement of 47 barchan dunes on the west side of Salton Sea, California, ranged from 325 to 925 feet over the 7 years between 1956 and 1963, an average of 82 feet per year. During the 15 years between 1941 and 1956, the movement of 34 of these dunes ranged between 350 and 1200 feet, an average of 50 feet per year. This difference in average movement during the two intervals is attributed primarily to increased sand supply. Movement (D) plotted against height of slip face (H) for the Salton dunes fits reasonably well with Finkel's reciprocal curve (1/D = n + k H) or with a law of the type D = PerH. Factors other than height affect the rate of movement, one of the more important being the state of the dune, whether growing or steady state. Barchan shape, whether fat or slim, may also influence the rate of movement of growing dunes. None of these dunes needs be more than 300 years old. 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.