Quantified rates of geomorphic change on a modern carbonate tidal flat, Bahamas

Research Article| July 01, 2002 Quantified rates of geomorphic change on a modern carbonate tidal flat, Bahamas Eugene C. Rankey; Eugene C. Rankey 1Department of Geologic and Atmospheric Sciences and Virtual Reality Applications Center, Iowa State University, Ames, Iowa 50011, USA Search for other works by this author on: GSW Google Scholar Jim Morgan Jim Morgan 2Department of Geologic and Atmospheric Sciences, Iowa State University, Ames, Iowa 50011, USA Search for other works by this author on: GSW Google Scholar Geology (2002) 30 (7): 583–586. https://doi.org/10.1130/0091-7613(2002)030<0583:QROGCO>2.0.CO;2 Article history received: 25 Oct 2001 rev-recd: 28 Feb 2002 accepted: 06 Mar 2002 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 Eugene C. Rankey, Jim Morgan; Quantified rates of geomorphic change on a modern carbonate tidal flat, Bahamas. Geology 2002;; 30 (7): 583–586. doi: https://doi.org/10.1130/0091-7613(2002)030<0583:QROGCO>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 Comparison of aerial photographs and ultrahigh-resolution remote sensing data reveals changes in the geomorphology of a modern carbonate tidal flat. In the 58 yr between acquisition of the two data sets, several tidal channels have extended headward more than 100 m, channel bars have stabilized, the shoreline has eroded as much as 50 m, the inland algal marsh locally has prograded as much as 90 m, and many mangrove ponds have increased in size. These changes over the known time interval allow quantification of the rates of these geomorphic processes and suggest rates of migration of landforms to several meters per year. Some observed rates appear to be different than rates averaged over the past several thousand years, however, possibly because of changes in storm activity or circulation patterns. These data illustrate the dynamic nature of the entire coastal tidal-flat system, not just the shoreline, and reflect the system's response to factors including relative rises in sea level. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.