Abstract
Research Article| June 01, 1980 Flowslides in muds on extremely low angle tidal flats, northeastern South America John T. Wells; John T. Wells 1Coastal Studies Institute, Louisiana State University, Baton Rouge, Louisiana 70803 Search for other works by this author on: GSW Google Scholar David B. Prior; David B. Prior 1Coastal Studies Institute, Louisiana State University, Baton Rouge, Louisiana 70803 Search for other works by this author on: GSW Google Scholar James M. Coleman James M. Coleman 1Coastal Studies Institute, Louisiana State University, Baton Rouge, Louisiana 70803 Search for other works by this author on: GSW Google Scholar Geology (1980) 8 (6): 272–275. https://doi.org/10.1130/0091-7613(1980)8<272:FIMOEL>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 John T. Wells, David B. Prior, James M. Coleman; Flowslides in muds on extremely low angle tidal flats, northeastern South America. Geology 1980;; 8 (6): 272–275. doi: https://doi.org/10.1130/0091-7613(1980)8<272:FIMOEL>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 Observations during field experiments on tidal flats in northeastern South America revealed that subaqueous mass-movement processes occur in soft, fluid muds on slopes of only 0.03° to 0.08°. Systems of linear failure chutes bounded by well-formed shear zones become visible during low tide and carry muds seaward at average rates of 1 to 10 cm/min. In situ measurements of pressure within the mud suggest that excess pore-water pressures which develop as tide waters recede may initiate this offshore movement of mud, described herein as “flowsliding.” Flowslide movement is significant as a transport mechanism for returning tidal flat muds to the wave-dominated environment from which they were derived. 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.
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