T23A:
Exploring the Characteristics and Dynamics of Oceanic Plates Entering Subduction Zones Posters

Submit an Abstract to this Session



Session ID#: 24328

Session Description:
Oceanic plates entering subduction zones play a key role in transporting material from Earth’s surface to the deep interior. In the last decade, several marine geophysical studies have revealed new high-resolution observations of bending-induced normal faults and additional structural variations suggesting infiltration of water into the crust and mantle of the downgoing plate. This session aims to highlight these findings as well as examine the relationship between large outer-rise earthquakes, megathrust events, compositional variations in the incoming plate and forearc, and the tectonic forces acting on the downgoing plate and the plate boundary interface. We also welcome presentations based on geophysical and geological studies of incoming oceanic plates, analyses of rock samples, effects of plate bending on the earth’s volatile cycle and igneous activities in the incoming plate, and numerical modeling studies that aim to elucidate the key tectonic processes within the incoming plate.
Primary Convener:  Shuichi Kodaira, JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan
Conveners:  Douglas Wiens, Washington University in St Louis, Earth and Planetary Sciences, St. Louis, MO, United States, Asuka Yamaguchi, University of Tokyo, Atmosphere and Ocean Research Institute, Kashiwa, Japan and John Naliboff, University of California Davis, Davis, CA, United States
Chairs:  Douglas Wiens, Washington University in St Louis, Department of Earth, Environmental, and Planetary Sciences, St. Louis, United States and Shuichi Kodaira, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokohama, Japan
OSPA Liaison:  John Naliboff, University of California Davis, Davis, CA, United States
Co-Organized with:
Tectonophysics, Seismology, and Volcanology, Geochemistry and Petrology
Index Terms:

7220 Oceanic crust [SEISMOLOGY]
7240 Subduction zones [SEISMOLOGY]
8120 Dynamics of lithosphere and mantle: general [TECTONOPHYSICS]
8170 Subduction zone processes [TECTONOPHYSICS]

Abstracts Submitted to this Session:

A multidisciplinary approach to constrain incoming plate hydration in the Central American Margin (262841)
Yan Hu1, Meghan R Guild2, Samer Naif3, Melody O Eimer4, Owen Evans5, Katherine F Fornash6, Terry A Plank3, Donna J Shillington7, Foteini Vervelidou8, Jessica M Warren9 and Douglas Wiens10, (1)University of Nevada Las Vegas, Department of Geoscience, Las Vegas, NV, United States, (2)Arizona State University, School of Earth & Space Exploration, Tempe, AZ, United States, (3)Columbia University, Lamont-Doherty Earth Observatory, Palisades, United States, (4)Washington University in St Louis, St. Louis, MO, United States, (5)Columbia University, New York, NY, United States, (6)Ohio University, Department of Geological Sciences, Athens, OH, United States, (7)Columbia University, Lamont-Doherty Earth Observatory, Palisades, NY, United States, (8)Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany, (9)University of Delaware, Earth Sciences, Newark, DE, United States, (10)Washington University in St. Louis, Earth, Environmental, and Planetary Sciences, St. Louis, United States
Uppermost oceanic crust structure and properties from multichannel seismic data at the Alaska subduction zone (276724)
Anne Becel, Lamont-Doherty Earth Observatory, Palisades, NY, United States, Helene Delphine Carton, Columbia University in the City of New York, Lamont-Doherty Earth Observatory, Palisades, NY, United States; Université Paris Cité, Institut de Physique du Globe de Paris, CNRS, Paris, France and Donna J Shillington, Columbia University of New York, Palisades, NY, United States
Frictional Behavior of Altered Basement Approaching the Nankai Trough (277517)
Matt Ikari1, Tyrone O Rooney2, Chris Marone3 and Demian M Saffer3, (1)MARUM - University of Bremen, Bremen, Germany, (2)Michigan State University, Department of Earth and Environmental Sciences, East Lansing, United States, (3)Penn State University, Department of Geosciences, University Park, PA, United States
Structural characteristics of the décollement zone and underthrust sediments in the Nankai accretionary prism: Geologic architectures in the Site C0023, IODP Expedition 370 (230275)
Yuzuru Yamamoto, JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan, Yuhji Yamamoto, Geol. Surv. Japan, AIST, Research Institute of Geology and Geoinformation, Tsukuba, Japan, Natsumi Okutsu, Atmosphere and Ocean Research Institute University of Tokyo, Tokyo, Japan, Yasuhiro Yamada, JAMSTEC, ODS, Kanagawa, Japan, Stephen Bowden, University of Aberdeen, Aberdeen, United Kingdom, Satoshi Tonai, Kochi University, Kochi, Japan, Kiho Yang, Pusan National University, Institute for Future Earth, Busan, South Korea, Man-Yin Tsang, University of Washington, School of Oceanography, Seattle, United States, Takehiro Hirose, JAMSTEC, Kochi Institute for Core Sample Research, Nankoku, Japan, Nana Kamiya, Doshisha University, Department of Environmental System Sciences, Kyoto, Japan and Expedition 370 Scientists
The Characteristics of Heat Flow in the Ryukyu Trench-Arc-Basin System: Constraints on Thermal Structure and Evolution of the Okinawa Trough (249386)
Liang Zhang, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
Waveform anomaly caused by strong attenuation in the crust and upper mantle in the Okinawa Trough region (222988)
Simanchal Padhy1, Takashi Furumura2 and Takuto Maeda2, (1)CSIR-National Geophysical Research Institute, Hyderabad, Seismology, Hyderabad, India, (2)ERI, The University of Tokyo, Tokyo, Japan
Seismic Structure of the Oceanic Plate Entering the Central Part of the Japan Trench Obtained from Ocean-Bottom Seismic Data (235529)
Akane Ohira1,2, Shuichi Kodaira1,3, Gou Fujie4, Tetsuo No2, Yasuyuki Nakamura5 and Seiichi Miura6, (1)Yokohama National University, Yokohama, Japan, (2)JAMSTEC, Yokohama, Japan, (3)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan, (4)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Yokohama, Japan, (5)Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Research Institute for Marine Geodynamics, Yokohama, Japan, (6)Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokohama, Japan
Structural characteristics of a post-middle Miocene forearc basin on land in the Boso Peninsula, central Japan based on geothermal analysis and consolidation experiments (237777)
Nana Kamiya, Kochi Institute for Core Sample Research, Kochi, Japan, Masayuki Utsunomiya, Geological Survey of Japan, AIST, Tsukuba, Japan, Yuzuru Yamamoto, JAMSTEC, Yokohama, Japan, Weiren Lin, Kyoto University, Graduate School of Engineering, Kyoto, Japan, Junichi Fukuoka, Nagoya Institute of Technology, Nagoya, Japan and Feng Zhang, Nagoya Institute of Thechnology, Nagoya, Japan
Structural and stratigraphic constraints on tsunamigenic rupture along the frontal Sunda megathrust from MegaTera bathymetric and seismic reflection data (268115)
Kyle E Bradley1, Yanfang Qin2, Fernando Villanueva-Robles3, Nugroho Hananto4, Frédérique Leclerc5, Satish Chandra Singh2, Paul Tapponnier6, Kerry Sieh7, Shengji Wei6, Helene Delphine Carton8, Haryadi Permana9, Praditya Avianto9 and Adam Budi Nugroho10, (1)Earth Observatory of Singapore, Asian School of the Environment, Singapore, Singapore, (2)Earth Observatory of Singapore, Nanyang Technological University, Singapore, Singapore, (3)Freiburg, Germany, (4)National Research and Innovation Agency, Jakarta Pusat, Indonesia, (5)Géoazur, Nice-Sophia Antipolis University, Nice, France, (6)Earth Observatory of Singapore, Singapore, Singapore, (7)EOS, Nanyang Technological Univ., Singapore, Singapore, (8)Columbia University in the City of New York, Lamont-Doherty Earth Observatory, Palisades, NY, United States, (9)Indonesian Institute of Sciences, Bandung, Indonesia, (10)Indonesian Agency for the Assessment and Application of Technology, Jakarta, Indonesia
Cenozoic Tectonic Evolution of Northeast China and Surrounding Areas Reproduced by Slab Subduction Models (237571)
Ting Yang1, Louis Noel Moresi1, Dapeng Zhao2 and Dan Sandiford3, (1)University of Melbourne, Parkville, VIC, Australia, (2)Tohoku University, Sendai, Japan, (3)University of Melbourne, Parkville, Australia
Coupling intensity and isostatic competition between subducting slab and overriding plate control trench motions and tectonics of the overriding plate (300574)
Guangliang Wu and Louis Noel Moresi, University of Melbourne, Parkville, VIC, Australia
Seismic response of the outer-rise region within a seismic cycle (269757)
Anthony Sladen, Université Côte d’Azur, CNRS, OCA, IRD, Géoazur, Sophia-Antipolis, France and Jenny Trévisan, Université Côte d’Azur, CNRS, OCA, IRD, Géoazur, Valbonne, France
Linking Incoming Plate Faulting and Intermediate Depth Seismicity (254050)
Kevin B Kwong, Southern Methodist University, Dallas, United States, Iris van Zelst, ETH Swiss Federal Institute of Technology Zurich, Department of Earth Sciences, Zurich, Switzerland, Xinyue Tong, University of Texas at Austin, Jackson School of Geosciences, Austin, TX, United States, Melody O Eimer, Washington University in St Louis, St. Louis, MO, United States, Samer Naif, Columbia University, Lamont-Doherty Earth Observatory, Palisades, United States, Yi Hu, University of Hawaii at Manoa, Honolulu, HI, United States, Zhongwen Zhan, CalTech Seismological Laboratory, Pasadena, CA, United States, Yuval Boneh, Washington University in St Louis, Earth and Planetary Sciences, St. Louis, MO, United States, Emily Schottenfels, Northern Arizona University, Flagstaff, United States, Meghan Samanth Miller, Australian National University, Research School of Earth Sciences, Canberra, ACT, Australia, Louis Noel Moresi, University of Melbourne, Parkville, VIC, Australia, Jessica M Warren, University of Delaware, Earth Sciences, Newark, DE, United States and Douglas A Wiens, Washington University in St Louis, Department of Earth and Planetary Sciences, St. Louis, MO, United States
How does Subduction Interface Roughness influence Megathrust Earthquakes: Insights from Natural Data and Analogue Models (212585)
Elenora van Rijsingen1,2, Serge Lallemand3, Michel Peyret4, Fabio Corbi5, Francesca Funiciello6, Diane Arcay5 and Arnauld Heuret5,7, (1)Utrecht University, Earth Sciences, Utrecht, Netherlands, (2)Ecole Normale Supérieure, PSL Research University, CNRS UMR 8538, Laboratoire de Géologie, Paris, France, (3)UMR5243 Geosciences Montpellier, CNRS, Montpellier, France, (4)Géosciences Montpellier, Montpellier Cedex 05, France, (5)Géosciences Montpellier, Montpellier, France, (6)University Roma Tre, Science, Rome, Italy, (7)Université de Guyane, Cayenne, French Guiana

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