NH023:
Underwater Landslides – Triggering Mechanisms, Timing, and Mechanics





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 km3. 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:  Julia S Reece, Texas A&M University College Station, Department of Geology and Geophysics, College Station, TX, United States
Conveners:  Jara Schnyder, University of Miami, Marine Geology and Geophysics, Miami, FL, United States, Derek Sawyer, Ohio State University Main Campus, Earth Sciences, Columbus, OH, United States and Hugh Daigle, University of Texas, 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:

Leyla Dzhangirovna Bashirova1,2, Evgenia Dorokhova1, Vadim Sivkov1,2, Nils Andersen3, Liubov A. Kuleshova1 and Alexander Matul1, (1)Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow, Russia, (2)Immanuel Kant Baltic Federal University, Kaliningrad, Russia, (3)University of Kiel, Leibniz Laboratory for Radiometric Dating and Stable Isotope Research, Kiel, Germany
Daniele Casalbore1, Alessandro Bosman2, David Casas3, Francesco Latino Chiocci4, Eleonora Martorelli2 and Domenico Ridente5, (1)Sapienza University of Rome, Rome, Italy, (2)Consiglio Nazionale delle Ricerche, Roma, Italy, (3)IGME, Madrid, Spain, (4)Università la Sapienza, Scienze della Terra, Rome, Italy, (5)Consiglio Nazionale delle Ricerche, IGAG, Roma, Italy
Jenna C Hill1, Daniel S Brothers1, Uri S Ten Brink2 and Brian D Andrews2, (1)USGS Pacific Coastal and Marine Science Center Santa Cruz, Santa Cruz, CA, United States, (2)USGS Coastal and Marine Science Center Woods Hole, Woods Hole, MA, United States
Alexis Wright, USGS Pacific Coastal and Marine Science Center Santa Cruz, Santa Cruz, CA, United States, Daniel S Brothers, Pacific Coastal and Marine Science Center Santa Cruz, Santa Cruz, CA, United States, Jared Kluesner, USGS, Santa Cruz, CA, United States, Brandon Dugan, Colorado School of Mines, Geophysics, Golden, CO, United States and Samuel Y Johnson, Pacific Science Center, Seattle, WA, United States
Deng H., Chengdu University of Technology, Chengdu, China
Derek Sawyer, Ohio State University Main Campus, Earth Sciences, Columbus, OH, United States, Robert Reece, Texas A&M University, Geology and Geophysics, College Station, TX, United States, Sean P S Gulick, The University of Texas at Austin, Department of Geological Sciences, Austin, TX, United States and Brandi L Lenz, Ohio State University Main Campus, Columbus, OH, United States
Roger Urgeles1, Eulàlia Gràcia1, Claudio Lo Iacono2, Cristina Sànchez-Serra1 and Finn Løvholt3, (1)Institut de Ciències del Mar (CSIC), Barcelona, Spain, (2)National Oceanography Center, Southampton, United Kingdom, (3)Norwegian Geotechnical Institute, Oslo, Norway
Sarah Kathryn Dailey, Louisiana State University, Baton Rouge, LA, United States, Peter Dominic Clift, Louisiana State University, Geology and Geophysics, Baton Rouge, LA, United States, Denise K Kulhanek, T, International Ocean Discovery Program, College Station, TX, United States and Gerome Calves, Universite Toulouse 3 UPS, Toulouse, France
Roger Urgeles1, Jaume Llopart2, Renata Lucchi3, Michele Rebesco3, Nils W. Brückner4, Denise C. Rüther5 and Hendrik Lantzsch6, (1)Institut de Ciències del Mar (CSIC), Barcelona, Spain, (2)Institut de Physique du Globe de Paris, Paris, France, (3)National Institute of Oceanography and Applied Geophysics OGS, Trieste, Italy, (4)Western Norway University of Applied Sciences, Songdal, Norway, (5)Western Norway University of Applied Sciences, Sogndal, Norway, (6)University of Bremen, Bremen, Germany
Mario Andres Gutierrez, University of Texas at Austin, Austin, TX, United States and John Snedden, Institute for Geophysics, Austin, TX, United States
Yonggang Jia, Zhenhao Wang Mr., Xiaolei Liu and Hongxian Shan, Ocean University of China, Qingdao, China
Jonathan Drobiarz1, Jacqueline Caplan-Auerbach1 and Robert P Dziak2, (1)Western Washington University, Bellingham, WA, United States, (2)NOAA, Pacific Marine Environmental Laboratory, Newport, OR, United States
Jeffrey Obelcz1, Kehui Xu2, Samuel J Bentley3, Warren T Wood4, Ioannis Y Georgiou5, Jillian M Maloney1 and Michael D. Miner6, (1)Coastal Studies Institute, Baton Rouge, LA, United States, (2)Louisiana State University, Department of Oceanography and Coastal Sciences, Baton Rouge, LA, United States, (3)Louisiana State University, Department of Geology and Geophysics, Baton Rouge, LA, United States, (4)John C. Stennis Space Center, Geology and Geophysics, Stennis Space Center, MS, United States, (5)University of New Orleans, New Orleans, LA, United States, (6)Bureau of Ocean Energy Management, New Orleans, LA, United States
Travis Eckert, Southern Methodist University, Dallas, TX, United States and David Walter Sparks, Texas A & M Univ, College Station, TX, United States
Patricia Manley, Thomas Manley, Supriti Jaya Ghosh, Piper Rosales-Underbrink and Perri Silverhart, Middlebury College, Geology, Middlebury, VT, United States
Morelia Urlaub1, Florian Petersen1, Felix Gross2, Dietrich Lange1 and Heidrun Kopp1, (1)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, (2)University of Kiel, Institut fuer Geowissenschaften, Kiel, Germany
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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