NH53B:
Underwater Landslides: Triggering Mechanisms, Timing, and Mechanics II Posters

Submit an Abstract to this Session



Session ID#: 26523

Session Description:
Subaqueous landslides are present in a wide variety of environments including marine and lacustrine, active and passive margins, on gentle and steep slopes, in soft and lithified sediments, and can remobilize sediment on scales ranging from a few m3 to thousands of Quantitative understanding of triggering mechanisms, landslide propagation as well as preconditioning factors that influence landslide timing is of fundamental importance for assessing sediment transport processes and possible geohazards. Unless directly monitored, relatively little is known about triggering mechanisms which include but are not limited to earthquakes, hydrate dissociation, pressure rebound behind headwalls, or influence of basement dynamics (e.g., diapirism). These processes are not mutually exclusive, and may have differing influence on landslide dynamics, frequency, and magnitude at any particular site. This session invites contributions highlighting the relationship between triggering mechanisms, timing, and mechanics of slide events as well as their influences on event frequency, nature, and magnitude.
Primary Convener:  Hugh Daigle, University of Texas at Austin, Center for Subsurface Energy and the Environment, Austin, TX, United States
Conveners:  Jenna C Hill, Ohio State University Main Campus, Earth Sciences, Columbus, United States and Hugh Daigle, University of Texas at Austin, Hildebrand Department of Petroleum and Geosystems Engineering, Austin, TX, United States
Chairs:  Jenna C Hill, Ohio State University Main Campus, Earth Sciences, Columbus, United States and Hugh Daigle, University of Texas at Austin, Hildebrand Department of Petroleum and Geosystems Engineering, Austin, TX, United States
OSPA Liaison:  Hugh Daigle, University of Texas at Austin, Hildebrand Department of Petroleum and Geosystems Engineering, Austin, TX, United States

Cross-Listed:
  • OS - Ocean Sciences
Index Terms:

3022 Marine sediments: processes and transport [MARINE GEOLOGY AND GEOPHYSICS]
3070 Submarine landslides [MARINE GEOLOGY AND GEOPHYSICS]
4219 Continental shelf and slope processes [OCEANOGRAPHY: GENERAL]
4304 Oceanic [NATURAL HAZARDS]

Abstracts Submitted to this Session:

Research on the resurrection evolution mechanism of Gendakan ancient landslide in the upstream on Lancang River, China (296912)
Deng H., Chengdu University of Technology, Chengdu, China
Submarine Landslide Hazards Offshore Southern Alaska: Seismic Strengthening Versus Rapid Sedimentation (299330)
Jenna C Hill, Ohio State University Main Campus, Earth Sciences, Columbus, United States, Robert Reece, Texas A&M University, Geology and Geophysics, College Station, TX, United States, Sean P S Gulick, University of Texas, Institute for Geophysics, Austin, United States and Brandi Lenz, Ohio State University Main Campus, Columbus, OH, United States
The Sedimentology and Origins of a Giant Mass Transport Deposit: The Nataraja Slide, Arabian Sea (213606)
Sarah Kathryn Dailey, Louisiana State University, Baton Rouge, LA, United States, Prof. Peter Dominic Clift, MA, PhD, DSc, Louisiana State University, Department of Geology and Geophysics, Baton Rouge, United States, Denise K Kulhanek, Christian-Albrechts-University of Kiel, Institute of Geosciences, Kiel, Germany and Gerome Calves, Universite Toulouse 3 UPS, Toulouse, France
Systematic Lithologic Calibration of Neogene Mass-Transport Deposits Seismic Character in Mississippi Canyon of the Northern Gulf of Mexico, USA. (237451)
Mario Andres Gutierrez, University of Texas at Austin, Austin, TX, United States and John Snedden, Institute for Geophysics, Austin, TX, United States
Storm-wave-induced seabed deformation: Results from in situ observation in the Yellow River subaqueous delta (239558)
Yonggang Jia, Zhenhao Wang Mr., Xiaolei Liu and Hongxian Shan, Ocean University of China, Qingdao, China
Characterising weak layers that accommodate submarine landslides on the Northwest African continental slope (271449)
Morelia Urlaub1, Sebastian Krastel2, Jacob Geersen1 and Tilmann Schwenk3, (1)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, (2)University of Kiel, Institut fuer Geowissenschaften, Kiel, Germany, (3)MARUM - University of Bremen, Bremen, Germany

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