EP11A:
Advancements in Understanding Deep-Sea Clastic Sedimentary Processes I


Session ID#: 8359

Session Description:
This session focuses on marine sedimentary processes and products in clastic depositional environment in open sea. Here, either persistent along-slope contouritic processes and episodic dip-slope events (turbidity currents as well as mass-transport processes including landslides and debris flows) may act and interact. In these settings the action of sediment supply and bottom currents, controlled by pre-existing seabed morphology, result in erosional features and sedimentary deposits that help to contrain regional geologic and climate history.

We seek contributions that are comprehensive, interdisciplinary and that may be regional, providing new findings of international significance. We welcome contributions based on geophysical data and sediment sampling of the seabed, preferably with an integrated approach.

A critical outcome of this session is a better understanding of sediment dynamics, paleo-reconstruction potential and natural hazards associated to  the sedimentary environment regulated by deep sea dip- and along-slope sedimentary processes.

Primary Convener:  Michele Rebesco, National Institute of Oceanography and Applied Geophysics OGS, Trieste, Italy
Conveners:  David Piper, Bedford Institute of Oceanography, Dartmouth, NS, Canada, Gert J De Lange, Utrecht University, Department of Earth Science-Geochemistry, Geosciences, Utrecht, Netherlands and John Wells, Virginia Institute of Marine Science, Gloucester Point, VA, United States
Chairs:  Michele Rebesco, National Institute of Oceanography and Applied Geophysics OGS, Trieste, Italy, Gert J De Lange, Utrecht University, Department of Earth Science-Geochemistry, Geosciences, Utrecht, Netherlands, David Piper, Bedford Institute of Oceanography, Dartmouth, NS, Canada and John Wells, Virginia Institute of Marine Science, Gloucester Point, VA, United States
OSPA Liaison:  Michele Rebesco, National Institute of Oceanography and Applied Geophysics OGS, Trieste, Italy

Cross-Listed:
  • NH - Natural Hazards
  • OS - Ocean Sciences
  • PP - Paleoceanography and Paleoclimatology
Index Terms:

3022 Marine sediments: processes and transport [MARINE GEOLOGY AND GEOPHYSICS]
3025 Marine seismics [MARINE GEOLOGY AND GEOPHYSICS]
3045 Seafloor morphology, geology, and geophysics [MARINE GEOLOGY AND GEOPHYSICS]
3070 Submarine landslides [MARINE GEOLOGY AND GEOPHYSICS]

Abstracts Submitted to this Session:

Submarine Landslides: What we Know and Where we are Going! (Invited) (60581)
Lorena Gina Moscardelli, The University of Texas at Austin, now at Statoil RDI, Austin, TX, United States, Joshu J Mountjoy, NIWA National Institute of Water and Atmospheric Research, Wellington, New Zealand, Aaron Micallef, University of Malta, Geosciences Faculty of Science, Msida, Malta, Michael Strasser, University of Innsbruck, Institute of Geology, Innsbruck, Austria, Maarten Vanneste, Norwegian Geotechnical Institute, Oslo, Norway, Jason D Chaytor, US Geological Survey, Coastal and Marine Science Center Woods Hole, Woods Hole, MA, United States, David Mosher, University of New Hampshire, Durham, NH, United States, Sebastian Krastel, Institute of Geosciences, Kiel, Germany, Claudio Lo Iacono, ICM-CSIC, Barcelona, Spain; National Oceanography Center, Southampton, United Kingdom and Yasuhiro Yamada, JAMSTEC, ODS, Kanagawa, Japan
How are giant clasts incorporated into submarine landslides and how do they change flow dynamics? (75369)
Andrea Ortiz-Karpf1, David Hodgson2, Christopher Aiden-Lee Jackson3, Yvonne Spychala4, Brooks L Hannah1 and William D McCaffrey1, (1)University of Leeds, School of Earth & Environment, Leeds, United Kingdom, (2)University of Leeds, School of Earth and Environment, Leeds, United Kingdom, (3)Imperial College London, London, United Kingdom, (4)Utrecht University, Department of Earth Sciences, Utrecht, Netherlands
Sediment movement and dispersal patterns on the Grand Banks continental shelf and slope were tied to the dynamics of the Laurentide ice-sheet margin (71223)
Harunur Rashid1, Kevin MacKillop2, David Piper3, Marli Vermooten4, Jenna Higgins3, Brittany Marche4, Keesha Langer4, Brent Brockway4, Heather E. Spicer4, Micheala D. Webb4 and Emilie Fournier4, (1)Memorial University of Newfoundland Grenfell, Corner Brook, NF, Canada, (2)Geological Survey of Canada Atlantic, Dartmouth, NS, Canada, (3)Bedford Institute of Oceanography, Dartmouth, NS, Canada, (4)Memorial University of Newfoundland Grenfell, Corner Brook, Canada
Complex Bedforms and Complex Water Masses: A Case Study from the Tertiary to Present-day, Pelotas Basin, Offshore Uruguay (82093)
Philip Thompson1, Gianluca Badalini1, Simon Wrigley1, Richard Walker1, John Argent1, Javier Hernandez-Molina2, Hector de Santa Ana3, Matias Soto3 and Juan Tomasini3, (1)BG Group, Exploration, Reading, United Kingdom, (2)Royal Holloway University of London, Earth Sciences, London, United Kingdom, (3)ANCAP, Exploración y Producción, Montevideo, Uruguay
Oceanic Density Fronts Steering Bottom-Current Induced Sedimentation Deduced from a 50 ka Contourite-Drift Record and Numerical Modeling (off NW Spain) (79838)
Till Jens Joerg Hanebuth1, Wenyan Zhang2, Antonia L Hofmann2, Ludvig A Lowemark3 and Tilmann Schwenk4, (1)Coastal Carolina University, Department of Marine Science, Conway, United States, (2)MARUM - University of Bremen, Bremen, Germany, (3)National Taiwan University, Taipei, Taiwan, (4)University of Bremen, Faculty of Geosciences, Bremen, Germany
Sedimentary dynamic processes of a contourite drift formation in the South China Sea: from long-term in situ observations to geological records (79028)
Zhifei Liu1, Yulong Zhao1, Yanwei Zhang1, Jianru Li2, Ke Wen2, Xiajing Li2, Shouting Tuo3 and Guangfa Zhong4, (1)Tongji University, State Key Laboratory of Marine Geology, Shanghai, China, (2)Tongji University, Shanghai, China, (3)Tongji University, Shanghai 200092, China, (4)State Key Laboratory of Marine Geology, Tongji University, Shanghai, China
Evolution of the Gulf of Cadiz and west Portugal contourite depositional system: tectonic, sedimentary and paleoceanographic implications from IODP Expedition 339 (Invited) (63195)
Francisco Javier Hernández Molina1,2, Francisco J Sierro3, Estefanía Llave4, Cristina Roque5, Dorrik A.V. Stow6, Trevor Williams7, Johanna Lofi8, Marlies Van der Schee9, Alvaro Arnaíz10, Santiago Ledesma11, Carlos Rosales10, Francisco J Rodriguez-Tovar12, Eulogio Pardo-Igúzquiza4 and Rachel Brackenridge13, (1)Royal Holloway University of London, Egham, United Kingdom, (2)Royal Holloway University of London, Earth Sciences, Egham, TW20, United Kingdom, (3)University of Salamanca, Department of Geology, Salamanca, Spain, (4)IGME, Madrid, Spain, (5)Instituto Dom Luiz-IDL, Lisboa, Portugal, (6)Heriot-Watt University, Institute of Petroleum Engineering, Edinburgh, United Kingdom, (7)Lamont Doherty Earth Obs, Palisades, United States, (8)Université de Montpellier, Géosciences Montpellier, Montpellier Cedex 05, France, (9)University of Salamanca, Salamanca, Spain, (10)Repsol, Madrid, Spain, (11)Gas Natural Fenosa, Madrid, Spain, (12)Univ de Granada, Granada, Spain, (13)Shell International Exploration & Production B.V., The Hague, Netherlands

See more of: Earth and Planetary Surface Processes