Quaternary aragonite cycles and oxygen-isotope record in Bahamian carbonate ooze

Research Article| April 01, 1983 Quaternary aragonite cycles and oxygen-isotope record in Bahamian carbonate ooze A. W. Droxler; A. W. Droxler 1Comparative Sedimentology Laboratory, Rosenstiel School of Marine and Atmospheric Science, University of Miami, Fisher Island Station, Miami Beach, Florida 33139-7392 Search for other works by this author on: GSW Google Scholar W. Schlager; W. Schlager 1Comparative Sedimentology Laboratory, Rosenstiel School of Marine and Atmospheric Science, University of Miami, Fisher Island Station, Miami Beach, Florida 33139-7392 Search for other works by this author on: GSW Google Scholar C. C. Whallon C. C. Whallon 2Department of Geology, University of Miami, Coral Gables, Florida 33124 Search for other works by this author on: GSW Google Scholar Geology (1983) 11 (4): 235–239. https://doi.org/10.1130/0091-7613(1983)11<235:QACAOR>2.0.CO;2 Article history first online: 01 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 A. W. Droxler, W. Schlager, C. C. Whallon; Quaternary aragonite cycles and oxygen-isotope record in Bahamian carbonate ooze. Geology 1983;; 11 (4): 235–239. doi: https://doi.org/10.1130/0091-7613(1983)11<235:QACAOR>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 Carbonate ooze in Bahamian troughs displays cyclic variation in the content of aragonite. A 10 m core devoid of turbidites shows 3.5 cycles, each defined by a sharp increase, followed by a gradual decrease of aragonite. The aragonite curve matches closely the oxygen-isotope curve of planktic foraminifera from the same core. Aragonite highs correspond to light oxygen-isotope values and thus to interglacial stages. Content of terrigenous material is low during interglacials and higher during glacial periods. Intermittent flooding and exposure of the Bahama Banks is most probably not the cause of the cycles, because the latest increase in aragonite precedes bank flooding by 8,000 yr and because the cycles are distinctly asymmetric, with rapid increase and gradual decrease of aragonitic content. Carbonate dissolution cycles tied to the glacial rhythm of Earth's climate are a more likely explanation of the variations in aragonite content. 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.