T006
Advances in Understanding Continental Margin Evolution: Two Decades of GeoPRISMS and MARGINS Science I

Monday, 7 December 2020: 19:00-20:00
Virtual
Primary Convener:  Jennifer A Wade, National Science Foundation, Arlington, VA, United States
Conveners:  Demian M Saffer, University of Texas at Austin, Austin, PA, United States, Katherine A Kelley, University of Rhode Island, Narragansett, RI, United States and Harm J Van Avendonk, University of Texas at Austin, Institute for Geophysics, Austin, TX, United States
Primary Liaison:  Jennifer A Wade, National Science Foundation, Arlington, VA, United States
Chairs:  Demian M Saffer, University of Texas at Austin, Austin, PA, United States, Jennifer A Wade, National Science Foundation, Arlington, VA, United States, Harm J Van Avendonk, University of Texas at Austin, Institute for Geophysics, Austin, TX, United States and Anaïs Férot, Pennsylvania State University, University Park, PA, United States
OSPA Liaison:  Harm J Van Avendonk, University of Texas at Austin, Institute for Geophysics, Austin, TX, United States
19:04
The Impact of Lithology on Upland Erodibility: Source-to-Sink Sediment Transfer and Composition in the Gulf of Papua (688874)
Rhiannon Garrett, University of Sydney, Sydney, NSW, Australia, Tristan Salles, University of Sydney, Sydney, Australia and Patrice F Rey, Univ of Sydney, School of Geosciences, Sydney, Australia
19:08
Two Decades of Geodetic and Seismological Insight into the Seismogenic Zone: A View from Nicoya, Costa Rica (744093)
Andrew Vern Newman1, Marino Protti2, Susan Y Schwartz3, Timothy H Dixon4, Tiegan E Hobbs5, Nicholas K Voss4, Christodoulos Kyriakopoulos6, Dongdong Yao7, Esteban J. Chaves8, Yan Jiang9, Lujia Feng10, Heather DeShon11, Jacob I. Walter12, Hongfeng Yang13, Surui Xie4 and Victor M González8, (1)Georgia Institute of Technology Main Campus, Atlanta, GA, United States, (2)Observatorio Vulcanológico y Sismológico de Costa Rica, Heredia, Costa Rica, (3)University of California-Santa Cruz, Santa Cruz, CA, United States, (4)University of South Florida, School of Geosciences, Tampa, FL, United States, (5)Geological Survey of Canada, Victoria, BC, Canada, (6)University of Memphis, Center for Earthquake Research and Information, Memphis, TN, United States, (7)University of Michigan, Ann Arbor, MI, United States, (8)Volcanological and Seismological Observatory of Costa Rica, Universidad Nacional (OVSICORI-UNA), Heredia, Costa Rica, (9)Geological Survey of Canada, Sidney, Canada, (10)Earth Observatory of Singapore, Nanyang Technological University, Singapore, Singapore, (11)Southern Methodist University, Dallas, TX, United States, (12)University of Oklahoma, Oklahoma Geological Survey, Norman, OK, United States, (13)Chinese University of Hong Kong, Hong Kong, Hong Kong
19:12
The impact of splay fault initiation and evolution on the stress state in subduction-accretion complexes (703600)
Maria A Nikolinakou, The University of Texas at Austin; Bureau of Economic Geology, Jackson School of Geosciences, Austin, TX, United States, Peter B Flemings, The University of Texas at Austin, Institute for Geophysics and Department of Geological Sciences, Jackson School of Geosciences, Austin, TX, United States and Demian M Saffer, Pennsylvania State University, University Park, PA, United States
19:16
Upper-plate controls on megathrust slip behaviour: Comparing the Hikurangi and Nankai subduction zones (713392)
Dan Bassett1, Adrien F Arnulf2, Shuichi Kodaira3, Stuart A Henrys1, Harm J Van Avendonk4, Daniel H N Barker1, Ayako Nakanishi5, Alistair J Harding6, Ryuta Arai7, Nathan L Bangs8, David A Okaya9, Katie Jacobs1, Gou Fujie10, Andrew Gase11, Yojiro Yamamoto10, Thomas Luckie9 and Koichiro Obana10, (1)GNS Science, Lower Hutt, New Zealand, (2)Scripps Institution of Oceanography, La Jolla, CA, United States, (3)Yokohama National University, Yokohama, Japan, (4)University of Texas at Austin, Institute for Geophysics, Austin, TX, United States, (5)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan, (6)Scripps Institution of Oceanog, La Jolla, CA, United States, (7)University of Hawaii at Manoa, Honolulu, HI, United States, (8)Univ Texas, Institute for Geophysics, Austin, TX, United States, (9)University of Southern California, Los Angeles, CA, United States, (10)Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokohama, Japan, (11)University of Texas, Institute for Geophysics, Austin, TX, United States
19:20
Heterogenous sediment input along the Nankai Trough subduction zone (709604)
Hannah Tilley1, Gregory F Moore1, Michael Underwood2, Mikiya Yamashita3 and Shuichi Kodaira3, (1)University of Hawaii at Manoa, Earth Sciences, Honolulu, HI, United States, (2)New Mexico Tech, Earth and Environmental Sciences, Socorro, NM, United States, (3)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan
19:24
Seismic Imaging of the Magma Plumbing System Beneath Mount Cleveland Volcano, Alaska (695248)
Daniel Evan Portner, Carnegie Institution for Science Washington, Earth and Planets Laboratory, Washington, DC, United States, Lara S Wagner, Carnegie Institution for Science Washington, Department of Terrestrial Magnetism, Washington, DC, United States, Helen A Janiszewski, University of Hawaii at Manoa, Earth Sciences, Honolulu, HI, United States, Diana C. Roman, Carnegie Institution for Science, Department of Terrestrial Magnetism, Washington, DC, United States and John A Power, USGS, Alaska Volcano Observatory, Anchorage, AK, United States
19:28
Multi-Disciplinary Evidence for a Large, Previously Unrecognized Caldera in the Islands of Four Mountains, Central Aleutian Arc, Alaska (746451)
John A Power1, Diana C. Roman2, Kirsten P Nicolaysen3, Pavel E Izbekov4, Cynthia A Werner5, Helen A Janiszewski6, Daniel Evan Portner7, Lara S Wagner2, Terry A Plank8, Daniel J. Rasmussen9, John J Lyons10, Matthew M Haney10, Helene Le Mevel11 and Max Kaufman12, (1)U.S. Geological Survey Alaska Volcano Observatory, Anchorage, AK, United States, (2)Carnegie Institution for Science, Department of Terrestrial Magnetism, Washington, DC, United States, (3)Whitman College, Department of Geology, Walla Walla, WA, United States, (4)Geophysical Institute, Fairbanks, AK, United States, (5)USGS Alaska Science Center, Anchorage, AK, United States, (6)Columbia University in the City of New York, Lamont-Doherty Earth Observatory, Palisades, NY, United States, (7)University of North Carolina at Chapel Hill, Olney, MD, United States, (8)Lamont Doherty Earth Obs., Palisades, NY, United States, (9)Lamont -Doherty Earth Observatory, Department of Earth & Environmental Sciences, Palisades, NY, United States, (10)USGS Alaska Volcano Observatory, Anchorage, AK, United States, (11)Carnegie Institution for Science Washington, Washington, United States, (12)University of Alaska Fairbanks, Fairbanks, AK, United States
19:32
3D Seismic Reflection Images of the Mount St Helens Magma Plumbing System (729420)
Alan Levander, Rice University, Earth, Environmental and Planetary Sciences, Houston, TX, United States and Eric Kiser, University of Arizona, Department of Geosciences, Tucson, AZ, United States
19:36
Discussion
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