Accumulation of bank-top sediment on the western slope of Great Bahama Bank: Rapid progradation of a carbonate megabank

Research Article| October 01, 1990 Accumulation of bank-top sediment on the western slope of Great Bahama Bank: Rapid progradation of a carbonate megabank R. Jude Wilber; R. Jude Wilber 1Sea Education Association, Woods Hole, Massachusetts 02543 Search for other works by this author on: GSW Google Scholar John D. Milliman; John D. Milliman 2Woods Hole Oceanographic Institution, Woods Hole, Massachusetts 02543 Search for other works by this author on: GSW Google Scholar Robert B. Halley Robert B. Halley 3U.S. Geological Survey, St. Petersburg, Florida 33705 Search for other works by this author on: GSW Google Scholar Author and Article Information R. Jude Wilber 1Sea Education Association, Woods Hole, Massachusetts 02543 John D. Milliman 2Woods Hole Oceanographic Institution, Woods Hole, Massachusetts 02543 Robert B. Halley 3U.S. Geological Survey, St. Petersburg, Florida 33705 Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1990) 18 (10): 970–974. https://doi.org/10.1130/0091-7613(1990)018<0970:AOBTSO>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 R. Jude Wilber, John D. Milliman, Robert B. Halley; Accumulation of bank-top sediment on the western slope of Great Bahama Bank: Rapid progradation of a carbonate megabank. Geology 1990;; 18 (10): 970–974. doi: https://doi.org/10.1130/0091-7613(1990)018<0970:AOBTSO>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 High-resolution seismic profiles and submersible observations along the leeward slope of western Great Bahama Bank show large-scale export of bank-top sediment and rapid progradation of the slope during the Holocene. A wedge-shaped sequence, up to 90 m thick, is present along most of the slope and consists of predominantly aragonite mud derived from the bank since flooding of the platform 6-8 ka. Total sediment volume of the slope sequence is 40%-80% that of Holocene sediment currently retained on the bank. Maximum rates of vertical accumulation and lateral progradation are 11-15 m/ka and 80-110 m/ka, respectively: 10 to 100 times greater than previously known for periplatform muds. Slope deposition of exported mud during sea-level highs appears to have been a major mechanism for the westward progradation of Great Bahama Bank throughout the Quaternary; this may provide a critical modern analogue for ancient progradational margins. 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.