Tectonics, Marine Geology, and Bathymetry of the Celebes Sea-Sulu Sea Region

Research Article| August 01, 1966 Tectonics, Marine Geology, and Bathymetry of the Celebes Sea-Sulu Sea Region DALE C KRAUSE DALE C KRAUSE Graduate School of Oceanography, University of Rhode Island, Kingston, Rhode Island Search for other works by this author on: GSW Google Scholar Author and Article Information DALE C KRAUSE Graduate School of Oceanography, University of Rhode Island, Kingston, Rhode Island Publisher: Geological Society of America Received: 13 Jul 1964 First Online: 02 Mar 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Copyright © 1966, The Geological Society of America, Inc. Copyright is not claimed on any material prepared by U.S. government employees within the scope of their employment. GSA Bulletin (1966) 77 (8): 813–832. https://doi.org/10.1130/0016-7606(1966)77813:TMGABO2.0.CO;2 Article history Received: 13 Jul 1964 First Online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation DALE C KRAUSE; Tectonics, Marine Geology, and Bathymetry of the Celebes Sea-Sulu Sea Region. GSA Bulletin 1966;; 77 (8): 813–832. doi: https://doi.org/10.1130/0016-7606(1966)77813:TMGABO2.0.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 Contoured bathymetric charts of the Celebes Sea-Sulu Sea region form the primary basis for a geologic interpretation of the region. The large ridges and basins show abundant evidence of active tectonism in the form of scarps, recent troughs, warping, large vertical displacements, and volcanoes. Terraces below the 1000-fathom depth in the basins of both seas are an enigma. Turbidity-current deposition has flattened the floors of the basins, while Pleistocene lowering of sea level caused the cutting of wide marine shelves on the ridges. Deep channels were cut in the shelves by intensive marine currents. Deep erosional features are evidence of local and regional subsidence. Published evidence regarding tectonism and geologic history combined with the marine data reveal that: (1) the left-lateral strike-slip Philippine fault extends south of the Talaud Islands and may have at least 110 km of horizontal displacement; (2) no land existed prior to Cretaceous time; (3) much spilitic lava was extruded in late Cretaceous and early Tertiary time; (4) a major orogeny occurred in late Miocene time and that another, still active, began in late Pliocene and Quaternary time. 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.