EP12C:
Toward a Step Change in Understanding of Sedimentary Processes in the Deep Sea II

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Session ID#: 35633

Session Description:
Submarine turbidity currents are the volumetrically most important process for transporting sediment across our planet, and form its largest sediment accumulations, whilst geostrophic contour currents drive ocean circulation. These deep-sea flows thus have unusually widespread implications for transfer and burial of organic carbon, functioning and diversity of benthic ecosystem, geohazards to seabed pipelines and cables, deposition of oil and gas reservoirs, and reading geological archives of Earth climate and history. It can be particularly challenging to study active processes in the deep-sea, which ensures that key questions remain. Turbidity currents have been especially difficult to monitor directly. Here we show how recent work used new technology and methods to monitor turbidity currents in action, in unprecedented detail. This session thus seeks to make a step change in understanding of deep-sea flows through studies that combine direct monitoring, morphodynamics, numerical modelling, physical experiments, and studies of deep-sea deposits at different scales.
Primary Convener:  Peter Talling, University of Durham, Earth Sciences and Geography, Durham, United Kingdom
Conveners:  Robert Michael Dorrell, University of Leeds, Leeds, LS2, United Kingdom, Charles K Paull, Monterey Bay Aquarium Research Institute, Moss Landing, CA, United States and Jingping Xu, Southern University of Science and Technology, Department of Ocean Science and Engineering, Shenzhen, China
Chairs:  Robert Michael Dorrell, University of Leeds, Leeds, LS2, United Kingdom and Michael Andrew Clare, National Oceanography Centre, Southampton, United Kingdom
OSPA Liaison:  Peter Talling, University of Durham, Durham, United Kingdom

Cross-Listed:
  • NH - Natural Hazards
  • OS - Ocean Sciences
Index Terms:

3022 Marine sediments: processes and transport [MARINE GEOLOGY AND GEOPHYSICS]
3045 Seafloor morphology, geology, and geophysics [MARINE GEOLOGY AND GEOPHYSICS]
4262 Ocean observing systems [OCEANOGRAPHY: GENERAL]
4558 Sediment transport [OCEANOGRAPHY: PHYSICAL]

Abstracts Submitted to this Session:

Acoustic Imaging of a Turbidity Current Flowing along a Channel (210462)
John E Hughes Clarke1, Anand Hiroji1, Liam Cahill2 and Juan Jose Fedele3, (1)Center for Coastal and Ocean Mapping Joint Hydrographic Center, Durham, NH, United States, (2)University of New Hampshire Main Campus, Ocean Engineering, Durham, NH, United States, (3)ExxonMobil Upstream Research Company, Houston, TX, United States
First direct observations linking confined supercritical turbidity currents to their depositional architecture and facies characteristics (240536)
Sophie Hage1, Matthieu Cartigny2, John E Hughes Clarke3, Michael Andrew Clare4, Esther Sumner5, Stephen Michial Hubbard6, Peter Talling7, Gwyn Lintern8, Cooper Stacey9, Mark E. Vardy10, James Hunt4, Daniela Vendettuoli11, Miwa Yokokawa12, Jamie Lee Hizzett4, Age Jan Vellinga4 and María Azpiroz4, (1)Universite Paris-Saclay, Geosciences, Paris, France, (2)University of Durham, Department of Geography, Durham, United Kingdom, (3)Center for Coastal and Ocean Mapping Joint Hydrographic Center, Durham, NH, United States, (4)National Oceanography Centre, Southampton, United Kingdom, (5)University of Southampton, National Oceanography Centre, Southampton, United Kingdom, (6)University of Calgary, Department of Earth, Energy and Environment, Calgary, AB, Canada, (7)University of Durham, Earth Sciences and Geography, Durham, United Kingdom, (8)Geological Survey of Canada, sidney, BC, Canada, (9)Natural Resources Canada, Sidney, BC, Canada, (10)National Oceanography Centre, Southampton, Marine Geosciences, Southampton, United Kingdom, (11)University of Southampton, & NOC, Southampton, United Kingdom, (12)Osaka Institute of Technology, Information Science & Technology, Hirakata, Japan
SEDIMENTARY SIGNATURES OF SUBMARINE EARTHQUAKES: DECIPHERING THE EXTENT OF SEDIMENT REMOBILIZATION FROM THE 2011 TOHOKU EARTHQUAKE AND TSUNAMI AND 2010 HAITI EARTHQUAKE (220140)
Cecilia M McHugh1, Leonardo Seeber2, Jasper Moernaut3, Michael Strasser3, Toshiya Kanamatsu4, Ken Ikehara5, Richard Bopp6, Sharif Mustaque7, Kazuko Usami8, Tobias Schwestermann3, Arata Kioka9, L. McCain Moore10 and R/V Sonne 251A Science Party, (1)Queens College, City University of New York and Lamont Doherty Earth Observatory, Flushing/NY, United States, (2)Columbia University of New York, Lamont-Doherty Earth Observatory, Palisades, United States, (3)University of Innsbruck, Institute of Geology, Innsbruck, Austria, (4)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Institute for Marine Geodynamics, Kanagawa, Japan, (5)AIST - National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan, (6)Rensselaer Polytechnic Institute, Troy, NY, United States, (7)Queens College, City University of New York, School of Earth and Environmental Sciences, Flushing/NY, NY, United States, (8)Geological Survey of Japan, AIST, Tsukuba, Japan, (9)University of Innsbruck, Institue of Geology, Innsbruck, Austria, (10)Queens College, City University of New York, Flushing, NY, United States
Deciphering Depositional Signals in the Bed-Scale Stratigraphic Record of Submarine Channels (276367)
Zoltan Sylvester, University of Texas at Austin, Bureau of Economic Geology, Austin, United States and Jacob A Covault, Bureau of Economic Geology, The University of Texas at Austin, Austin, TX, United States
A 2.7 Myr record of sedimentary processes on a high-latitude continental slope: 3D seismic evidence from the mid-Norwegian margin (249773)
Aleksandr Montelli, University of Cambridge, Scott Polar Research Institute, Cambridge, United Kingdom, Julian A. Dowdeswell, Scott Polar Research Institute, University of Cambridge, Cambridge, United Kingdom, Dag Ottesen, Geological Survey of Norway, Trondheim, Norway and Stale Johansen, Norwegian University of Science and Technology, Trondheim, Norway
A Predictive Model for Submarine Canyon Type Based on the Relative Influence of Rivers, Waves and Tides. (251221)
Esther Sumner, University of Southampton, Southampton, SO14, United Kingdom and Charles K Paull, Monterey Bay Aquarium Research Institute, Moss Landing, CA, United States
How well do basic models describe the turbidity currents coming down Monterey and Congo Canyon? (274641)
Matthieu Cartigny1, Stephen Simmons2, Catharina Heerema3, Jingping Xu4, María Azpiroz5, Michael Andrew Clare5, Cortis Cooper6, Jenny A. Gales5, Katherine L Maier7, Daniel R Parsons8, Charles K Paull9, Esther J Sumner10, Peter Talling11 and Monterey Coordinated Canyon Experiment Team, (1)University of Durham, Department of Geography, Durham, United Kingdom, (2)University of Hull, School of Environmental Sciences, Hull, HU6, United Kingdom, (3)University of Durham, Durham, United Kingdom, (4)Southern University of Science and Technology, Department of Ocean Science & Engineering, Guangdong, China, (5)National Oceanography Centre, Southampton, United Kingdom, (6)Chevron L4240, San Ramon, CA, United States, (7)National Institute of Water and Atmospheric Research, Wellington, New Zealand, (8)University of Hull, Energy & Environment Institute, Hull, United Kingdom, (9)Monterey Bay Aquarium Research Institute, Moss Landing, CA, United States, (10)University of Southampton, Ocean and Earth Science, Southampton, United Kingdom, (11)University of Durham, Earth Sciences and Geography, Durham, United Kingdom

See more of: Earth and Planetary Surface Processes