Pleistocene Sand Ridges and Pans in Western Rhodesia

Research Article| March 01, 1968 Pleistocene Sand Ridges and Pans in Western Rhodesia RICHARD FOSTER FLINT; RICHARD FOSTER FLINT Dept. of Geology, Yale University, New Haven, Connecticut Search for other works by this author on: GSW Google Scholar GEOFFREY BOND GEOFFREY BOND Dept. of Geology, University College, Salisbury, Rhodesia Search for other works by this author on: GSW Google Scholar GSA Bulletin (1968) 79 (3): 299–314. https://doi.org/10.1130/0016-7606(1968)79[299:PSRAPI]2.0.CO;2 Article history received: 19 Aug 1966 rev-recd: 29 Mar 1967 first online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share MailTo Twitter LinkedIn Tools Icon Tools Get Permissions Search Site Citation RICHARD FOSTER FLINT, GEOFFREY BOND; Pleistocene Sand Ridges and Pans in Western Rhodesia. GSA Bulletin 1968;; 79 (3): 299–314. doi: https://doi.org/10.1130/0016-7606(1968)79[299:PSRAPI]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 Long, wide, but extremely low, parallel ridges of sand are believed to represent the eroded stumps of former longitudinal dunes. Lacking erosion channels of any kind, they are probably unique features. The former dunes are thought to have been degraded mainly by sheet erosion, which was effected by (1) a high-intensity rainfall, (2) a partial vegetation cover, and (3) an unconsolidated, permeable sandy terrain. Probably this combination of factors is rare.Small basins in the troughs between the sand ridges are underlain by a mixture of sand and clay that came from the ridges. These basins are maintained by deflation, together with excavation by buffalo, elephant, and other large animals.The history of the ridges implies Pleistocene climatic change. A very wet period succeeded a very dry period. Also a short, recent dry period is suggested. 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.