EP040
Submarine Geomorphology
Session ID#: 75317
Session Description:
The ocean floor hosts a tremendous variety of forms that reflect the action of a range of tectonic, sedimentary, oceanographic and biological processes at multiple spatio-temporal scales. Many such processes are hazards to coastal populations and offshore installations. High quality bathymetry, especially when combined with sub-seafloor and/or seabed measurements, provides an exciting opportunity to integrate the approaches of geomorphology and geophysics, and to extend quantitative geomorphology offshore. 3D seismic reflection data has also given birth to the discipline of seismic geomorphology.
This interdisciplinary session aims to examine the causes and consequences of geomorphic processes shaping underwater landscapes. The general goal of the session is to bring together researchers who characterize the shape of past and present seafloor features, seek to understand the sub-surface and surface processes at work and their impacts, or use bathymetry and/or 3D seismic data as a model input.
Co-Organized:
Index Terms:
3045 Seafloor morphology, geology, and geophysics [MARINE GEOLOGY AND GEOPHYSICS]
Primary Convener: Sebastian Krastel, Institute of Geosciences, Kiel, Germany; University of Kiel, Institute of Geosciences, Kiel, Germany
Conveners: Aaron Micallef, University of Malta, Msida, Malta and Alessandra Savini, University of Milano-Bicocca, Dept. of Earth and Environmental Sciences, Milano, Italy
Primary Liaison: Sebastian Krastel, Institute of Geosciences, Kiel, Germany; University of Kiel, Institute of Geosciences, Kiel, Germany
Submarine Permafrost Dynamics Along the Arctic Shelf Edge (Invited) (491053)
Charles K Paull1, Scott Dallimore2, Yong Keun Jin3, David W Caress1, Eve M Lundsten1, Krystle Anderson1, Roberto Gwiazda1, Michael Riedel4, Humfrey Melling5, Mathieu J Duchesne6 and Edward L King7, (1)Monterey Bay Aquarium Research Institute, Moss Landing, CA, United States, (2)Geological Survey of Canada Pacific, Sidney, BC, Canada, (3)Korea Polar Research Institute, Incheon, South Korea, (4)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, (5)Inst Ocean Sciences, Sidney, BC, Canada, (6)Geological Survey of Canada Quebec, Quebec, QC, Canada, (7)Natural Resources Canada, gsc, dartmouth, NS, Canada
Morphological and Structural Analysis of Large- and Small-Scale Erosional and Depositional Features Along the Argentine/Uruguayan Margin (501590)
Tilmann Schwenk1, Rouven Brune2, Fynn Warnke2, Volkhard Spiess2, Lena Steinmann1, Stefan Wenau2, Roberto Violante3, Graziella Bozzano3 and Sabine Kasten4, (1)University of Bremen, Faculty of Geosciences, Bremen, Germany, (2)University of Bremen, Bremen, Germany, (3)Servicio de Hidrografía Nava, Buenos Aires, Argentina, (4)Alfred Wegener Institute for P, Bremerhaven, Germany
Bathymetric mapping and high-resolution seismic reflection surveys on the submerged reef, Ryukyu Island Arc, northwestern Pacific (504741)
Kohsaku Arai, Geological Survey of Japan, AIST, Tsukuba, Ibaraki, Japan and Takahiko Inoue, Geology and Geoinformation, Tsukuba, Ibaraki, Japan
Large-scale scours formed by supercritical turbidity currents along the full length of a submarine canyon, northeast South China Sea (509146)
Wei Li1, Shuang Li1, Tiago M. Alves2 and Shiguo Wu3, (1)South China Sea Institute of Oceanology, Chinese Academy of Sciences, CAS Key Laboratory of Ocean and Marginal Sea Geology, Guangzhou, China, (2)Cardiff University, 3D Seismic Lab, School of Earth and Ocean Sciences, Cardiff, United Kingdom, (3)Institute of Deep-sea Science and Engineering, Chinese Academy of Sciences, Sanya, China
How seamount subduction affects active margin architecture along the Middle America Trench in Mexico (513006)
Jan Cerny1, M. Teresa Ramirez-Herrera2, Emmanuel Soliman M Garcia3, Yoshihiro Ito3 and Filip Tomek4, (1)Universidad Nacional Autonoma de Mexico, Laboratorio de Tsunamis y Paleosismología, Instituto de Geografía, Mexico City, Mexico, (2)Universidad Nacional Autónoma de Mexico, Laboratorio de Tsunamis y Paleosismología, Instituto de Geografía, Mexico City, Mexico, (3)Disaster Prevention Research Institute, Kyoto University, Kyoto, Japan, (4)Institute of Geology, Czech Academy of Sciences, Prague - Lysolaje, Czech Republic
Discovery of giant submarine canyons on the Davie Ridge (western Indian Ocean): timing of formation and significance. (520460)
Vittorio Maselli, Dalhousie University, Earth and Environmental Sciences, Halifax, NS, Canada, Dick Kroon, University of Edinburgh, Edinburgh, United Kingdom, David Iacopini, University of Aberdeen, Geology and Petroleum Geology, Aberdeen, United Kingdom, Bridget Wade, University College London, Department of Earth Sciences, London, United Kingdom, Paul N Pearson, Cardiff University, School for Earth and Ocean Sciences, Cardiff, United Kingdom and Henk de Haas, National Marine Facilities Department and Utrecht University, 6Royal Netherlands Institute for Sea Research, Yerseke, Netherlands
Commingled Seafloor Pockmarks and Micro Depressions Offshore Big Sur, California (521270)
Eve M Lundsten1, Charles K Paull1, David W Caress1, Roberto Gwiazda1, Guy R Cochrane2, Maureen A L Walton3 and Nora Nieminski4, (1)Monterey Bay Aquarium Research Institute, Moss Landing, CA, United States, (2)USGS, Santa Cruz, CA, United States, (3)U.S. Geological Survey, Santa Cruz, CA, United States, (4)Stanford University, Geological Sciences, Stanford, CA, United States
Controlled-Source Electromagnetic Methods (CSEM) to Detect and Characterize Resources and Hazards on the Continental Shelf (523347)
Roslynn King1,2, Jillian M Maloney2 and Steven Constable1, (1)Scripps Institution of Oceanography, La Jolla, CA, United States, (2)San Diego State University, Department of Geological Sciences, San Diego, CA, United States
Drowned coastlines on continental shelves and their relation to stillstands and meltwater pulses (561187)
Alex Bastos1, Geandré Boni2, Pedro Menandro3, Fernanda Vedoato2, Marcos Daniel Leite2, Natacha Oliveira3, Ana Carolina Lavagnino2 and Danielle D'Agostini2, (1)UFES Federal University of Espírito Santo, Vitoria, Brazil, (2)UFES, Vitória, Brazil, (3)Ufes, Vitoria, Brazil
Laboratory simulations of the movement mechanisms in a submarine landslide during seismic loading (568808)
Jonathan Carey, GNS Science, Lower Hutt, New Zealand, Joshu J Mountjoy, NIWA National Institute of Water and Atmospheric Research, Wellington, New Zealand, Gareth James Crutchley, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany and David N Petley, University of Sheffield, Sheffield, United Kingdom
Development of stepped slope topographies and broken gravels by submarine thrust fault activity, around the Senoumi Bank, Suruga Bay Japan. (580891)
Izumi Sakamoto1, Sho Tomita2, Yuka Yokoyama1, Masatoshi Yagi3 and Ömer Aydan4, (1)Tokai University, Tokyo, Japan, (2)TOKAI Univ., Shizuoka, Japan, (3)Geosys, inc., Tokyo, Japan, (4)Ryukyu Univ., Okinawa, Japan
Deepwater distributary system avulsion processes and geomorphic signatures (613058)
Rebecca L Caldwell, Chevron Energy Technology Company, Earth Science Dept., Houston, IN, United States and Tao Sun, Chevron Energy Technology Company, Earth Science Dept., Houston, TX, United States
