Episodic erosion and deposition in the Tongue of the Ocean (Bahamas)

Research Article| August 01, 1976 Episodic erosion and deposition in the Tongue of the Ocean (Bahamas) W. SCHLAGER; W. SCHLAGER 1Comparative Sedimentology Laboratory, Rosenstiel School of Marine and Atmospheric Science, University of Miami, Fisher Island Station, Miami Beach, Florida 33139 Search for other works by this author on: GSW Google Scholar R. L. HOOKE; R. L. HOOKE 2Department of Geology and Geophysics, University of Minnesota, Minneapolis, Minnesota, 55455 Search for other works by this author on: GSW Google Scholar N. P. JAMES N. P. JAMES 3Department of Geology, Memorial University of Newfoundland, St. John's, Newfoundland, A1C 5S7, Canada Search for other works by this author on: GSW Google Scholar GSA Bulletin (1976) 87 (8): 1115–1118. https://doi.org/10.1130/0016-7606(1976)87<1115:EEADIT>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 W. SCHLAGER, R. L. HOOKE, N. P. JAMES; Episodic erosion and deposition in the Tongue of the Ocean (Bahamas). GSA Bulletin 1976;; 87 (8): 1115–1118. doi: https://doi.org/10.1130/0016-7606(1976)87<1115:EEADIT>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 SocietyGSA Bulletin Search Advanced Search Abstract During four dives in the Tongue of the Ocean in the deep submersible Alvin, we observed extensive evidence for erosion, including cliffs several tens of metres high of horizontally bedded pelagic chalk, crescentic scour marks around boulders in channel bottoms, and bands of freshly exposed rock at the bases of cliffs that were otherwise stained dark brown by manganese oxide. In the central part of the Tongue of the Ocean, the change from a depositional to an erosional regime must have occurred only recently, as the axial valley is cutting headward into bedded chalks of mid-Pleistocene age. Such changes may have occurred several times in the history of the Tongue of the Ocean, and the steep walls may be the result of an interplay between upbuilding of the platforms and erosion of the troughs. 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.