Research Article| December 01, 1988 Platforms of the Nicaraguan Rise: Examples of the sensitivity of carbonate sedimentation to excess trophic resources Pamela Hallock; Pamela Hallock 1Department of Marine Science, University of South Florida, St. Petersburg, Florida 33701 Search for other works by this author on: GSW Google Scholar Albert C. Hine; Albert C. Hine 1Department of Marine Science, University of South Florida, St. Petersburg, Florida 33701 Search for other works by this author on: GSW Google Scholar Gabriel A. Vargo; Gabriel A. Vargo 1Department of Marine Science, University of South Florida, St. Petersburg, Florida 33701 Search for other works by this author on: GSW Google Scholar Jane A. Elrod; Jane A. Elrod 2Laboratory for Oceans, Code 671, NASA/Goddard Space Flight Center, Greenbelt, Maryland 20771 Search for other works by this author on: GSW Google Scholar Walter C. Jaap Walter C. Jaap 3Bureau of Marine Research, Florida Department of Natural Resources, St. Petersburg, Florida 33701 Search for other works by this author on: GSW Google Scholar Geology (1988) 16 (12): 1104–1107. https://doi.org/10.1130/0091-7613(1988)016<1104:POTNRE>2.3.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 Pamela Hallock, Albert C. Hine, Gabriel A. Vargo, Jane A. Elrod, Walter C. Jaap; Platforms of the Nicaraguan Rise: Examples of the sensitivity of carbonate sedimentation to excess trophic resources. Geology 1988;; 16 (12): 1104–1107. doi: https://doi.org/10.1130/0091-7613(1988)016<1104:POTNRE>2.3.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 The Nicaraguan Rise is an active tectonic structure in the western Caribbean. Carbonate accumulation on its platforms has not kept pace with relative Holocene sea-level rise, despite a tropical location remote from terrigenous sedimentation. Trophic resources apparently exceed levels favoring coral-reef development because sponge-algal communities dominate the drowning western platforms, in contrast to mixed coral-algal benthos on Pedro Bank and well- developed coral reefs along the north coast of Jamaica. Concentrations of biotic pigments in sea-surface waters show a corresponding west-east gradient; oceanic waters flowing over the western banks carry nearly twice as much biotic pigment as oceanic waters north of Jamaica. Sources enriching the western Caribbean are terrestrial runoff, upwelling off northern South America, and topographic upwelling over the Nicaraguan Rise. That relatively modest levels of trophic resources can suppress coral-reef development holds important implications for understanding carbonate platform drownings in the geologic record. 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.