EP11E:
Toward a Step Change in Understanding of Sedimentary Processes in the Deep Sea I

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Session ID#: 35627

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:  John E Hughes Clarke, Center for Coastal and Ocean Mapping Joint Hydrographic Center, Durham, NH, United States and Hajime Naruse, Kyoto University, Division of Earth and Planetary Sciences, Kyoto, Japan
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:

Seabed Motion During Sediment Density Flows as Recorded by Displaced Man-Made Motion-Recording Boulders and a Heavy Instrument Platform (242132)
Roberto Gwiazda1, Charles K Paull1, Brian Kieft2, Larry Bird1, Denis Klimov1, Robert Herlien1, Alana Sherman2, Michael P McCann3, Esther Sumner4, Peter Talling5, Jingping Xu6, Daniel R Parsons7, Katherine L Maier8, James Barry3 and Monterey Coordinated Canyon Experiment Team, (1)Monterey Bay Aquarium Research Institute, Moss Landing, CA, United States, (2)Monterey Bay Aquarium Research Institute, Moss Landing, United States, (3)Monterey Bay Aquarium Research Institute, Moss Landing, CA, UNITED STATES, (4)University of Southampton, National Oceanography Centre, Southampton, United Kingdom, (5)University of Durham, Earth Sciences and Geography, Durham, United Kingdom, (6)Ocean University of China, Qingdao, China, (7)University of Hull, Energy & Environment Institute, Hull, United Kingdom, (8)National Institute of Water and Atmospheric Research, Wellington, New Zealand
The down canyon evolution of submarine sediment density flows (294766)
Daniel R Parsons1, James Barry2, Michael Andrew Clare3, Matthieu Cartigny4, Mark R Chaffey5, Jenny A. Gales3, Roberto Gwiazda6, Katherine L Maier7, Mary McGann8, Charles K Paull9, Thomas C O'Reilly9, Kurt J Rosenberger10, Stephen Simmons11, Esther Joanne Sumner12, Peter Talling13, Jingping Xu14 and the Monterey Coordinated Canyon Experiment Team, (1)University of Hull, Energy & Environment Institute, Hull, United Kingdom, (2)Monterey Bay Aquarium Research Institute, Research, Moss Landing, CA, United States, (3)National Oceanography Centre, Southampton, United Kingdom, (4)University of Durham, Department of Geography, Durham, United Kingdom, (5)MBARI, Moss Landing, CA, United States, (6)Monterey Bay Aquarium Res Inst, Moss Landing, CA, United States, (7)National Institute of Water and Atmospheric Research, Wellington, New Zealand, (8)Pacific Coastal and Marine Science Center Menlo Park, Menlo Park, CA, United States, (9)Monterey Bay Aquarium Research Institute, Moss Landing, CA, United States, (10)U.S. Geological Survey, Pacific Coastal and Marine Science Center, Santa Cruz, CA, United States, (11)University of Hull, School of Environmental Sciences, Hull, HU6, United Kingdom, (12)University of Southampton, Southampton, United Kingdom, (13)University of Durham, Earth Sciences and Geography, Durham, United Kingdom, (14)Ocean University of China, Qingdao, China
Carbon transport in Monterey Submarine Canyon (242254)
James Barry1, Charles K Paull2, Jingping Xu3, Michael Andrew Clare4, Jenny A. Gales4, Kurt Randall Buck2, Chris Lovera5, Roberto Gwiazda6, Katherine L Maier7, Mary McGann8, Daniel R Parsons9, Stephen Simmons10, Kurt J Rosenberger11 and Peter J Talling4, (1)Monterey Bay Aquarium Research Institute, Research, Moss Landing, CA, United States, (2)Monterey Bay Aquarium Research Institute, Moss Landing, CA, United States, (3)Southern University of Science and Technology, Department of Ocean Science & Engineering, Guangdong, China, (4)National Oceanography Centre, Southampton, United Kingdom, (5)Monterey Bay Aquarium Research Institute, Moss Landing, United States, (6)Monterey Bay Aquarium Res Inst, Moss Landing, CA, United States, (7)National Institute of Water and Atmospheric Research, Wellington, New Zealand, (8)Pacific Coastal and Marine Science Center Menlo Park, Menlo Park, CA, United States, (9)University of Hull, Energy & Environment Institute, Hull, United Kingdom, (10)University of Hull, Hull, HU6, United Kingdom, (11)U.S. Geological Survey, Pacific Coastal and Marine Science Center, Santa Cruz, CA, United States
Direct sampling during multiple sediment density flows reveals dynamic sediment transport and depositional environment in Monterey submarine canyon (229795)
Katherine L Maier1, Jenny A. Gales2, Charles K Paull3, Roberto Gwiazda3, Kurt J Rosenberger4, Mary McGann5, Eve M Lundsten3, Krystle Anderson6, Peter Talling7, Jingping Xu8, Daniel R Parsons9, James Barry10, Stephen Simmons9, Michael Andrew Clare11, Cristian Carvajal3, Monica Wolfson-Schwehr3, Esther Sumner11, Matthieu Cartigny12 and Monterey Coordinated Canyon Experiment Team, (1)National Institute of Water and Atmospheric Research, Wellington, New Zealand, (2)National Oceanography Centre, Southampton, United Kingdom, (3)Monterey Bay Aquarium Research Institute, Moss Landing, CA, United States, (4)U.S. Geological Survey, Pacific Coastal and Marine Science Center, Santa Cruz, CA, United States, (5)U.S. Geological Survey, Pacific Coastal and Marine Science Center Menlo Park, Menlo Park, CA, United States, (6)Monterey Bay Aquarium Research Institute, Moss Landing, United States, (7)University of Durham, Durham, United Kingdom, (8)Ocean University of China, Qingdao, China, (9)University of Hull, Hull, HU6, United Kingdom, (10)Monterey Bay Aquarium Research Institute, Research, Moss Landing, CA, United States, (11)University of Southampton, National Oceanography Centre, Southampton, United Kingdom, (12)University of Durham, Department of Geography, Durham, United Kingdom
Novel Quantification of Sediment Concentration in Turbidity Currents Through in-situ Measurements of Conductivity and Temperature (230479)
Jingping Xu1, Zhiwen Wang1, Roberto Gwiazda2, Charles K Paull3, Peter Talling4, Daniel R Parsons5, Katherine L Maier6, Stephen Simmons7, Matthieu Cartigny8 and Monterey Coordinated Canyon Experiment Team, (1)Ocean University of China, Qingdao, China, (2)Monterey Bay Aquarium Res Inst, Moss Landing, CA, United States, (3)Monterey Bay Aquarium Research Institute, Moss Landing, CA, United States, (4)University of Durham, Earth Sciences and Geography, Durham, United Kingdom, (5)University of Hull, Energy & Environment Institute, Hull, United Kingdom, (6)National Institute of Water and Atmospheric Research, Wellington, New Zealand, (7)University of Hull, School of Environmental Sciences, Hull, HU6, United Kingdom, (8)University of Durham, Department of Geography, Durham, United Kingdom
Go big or die out: Bifurcation and bimodality in submarine sediment flow behaviour (226726)
Peter Talling1, Charles K Paull2, Gwyn Lintern3, Roberto Gwiazda4, Matthieu Cartigny5, John E Hughes Clarke6, Jingping Xu7, Michael Andrew Clare8, Daniel R Parsons9, Stephen Simmons10, Katherine L Maier11, Jenny A. Gales8, Sophie Hage12, Mary McGann13, Ed Pope14, Kurt J Rosenberger15, Cooper Stacey16, James Barry17, Eve M Lundsten2, Krystle Anderson18, Thomas C O'Reilly2, Natasha Chapplow19, Daniela Vendettuoli20 and Monterey Coordinate Canyon Experiment (CCE) Team and Bute Inlet Team, (1)University of Durham, Earth Sciences and Geography, Durham, United Kingdom, (2)Monterey Bay Aquarium Research Institute, Moss Landing, CA, United States, (3)Geological Survey of Canada, sidney, BC, Canada, (4)Monterey Bay Aquarium Res Inst, Moss Landing, CA, United States, (5)University of Durham, Department of Geography, Durham, United Kingdom, (6)Center for Coastal and Ocean Mapping Joint Hydrographic Center, Durham, NH, United States, (7)Southern University of Science and Technology, Department of Ocean Science and Engineering, Shenzhen, China, (8)National Oceanography Centre, Southampton, United Kingdom, (9)University of Hull, Energy & Environment Institute, Hull, United Kingdom, (10)University of Hull, School of Environmental Sciences, Hull, HU6, United Kingdom, (11)National Institute of Water and Atmospheric Research, Wellington, New Zealand, (12)Universite Paris-Saclay, Geosciences, Paris, France, (13)Pacific Coastal and Marine Science Center Menlo Park, Menlo Park, CA, United States, (14)University of Durham, Departments of Geography and Earth Science, Durham, United Kingdom, (15)U.S. Geological Survey, Pacific Coastal and Marine Science Center, Santa Cruz, CA, United States, (16)Natural Resources Canada, Sidney, BC, Canada, (17)Monterey Bay Aquarium Research Institute, Research, Moss Landing, CA, United States, (18)MBARI, Moss Landing, CA, United States, (19)University of Durham, Department of Earth Sciences, Durham, United Kingdom, (20)University of Southampton, & NOC, Southampton, United Kingdom

See more of: Earth and Planetary Surface Processes