Session Proposal: From the Seismic Cycle to Geological Timescales, How Do Subduction Processes that Can Possibly Modify the Megathrust Geometry and Mechanical Properties Control the Tectonic Evolution and Deformation of Active Margins and the Subduction Seismic Behavior? II Posters (2015 AGU Fall Meeting)

T33C:
From the Seismic Cycle to Geological Timescales, How Do Subduction Processes that Can Possibly Modify the Megathrust Geometry and Mechanical Properties Control the Tectonic Evolution and Deformation of Active Margins and the Subduction Seismic Behavior? II Posters

Session ID#: 7866

Session Description:

A fundamental feature of overriding plates is that on 10⁰to10⁷yr time-scales, they deform both abruptly and dramatically or slowly and subtly in response to an array of distinct subduction processes, among which are earthquake cycles, subducting ridges, and erosion/accretion. Over short time-scales, the pattern of upper-plate vertical deformation is dominated by subduction seismic cycles controlled by the megathrust structure and mechanical properties. Over longer time-scales, upper-plates present various vertical deformation patterns, which can be transient, vary along-strike, reflect long lasting elastic behavior (no permanent deformation) or not (building of permanent topography). Consequently, observations of long-term vertical deformation offer clues to investigate the structure, properties and processes enveloping the interplate thrust zone and their significance regarding subduction seismic behavior. This session welcomes insights focusing on active deformation at convergent margins through observations and modeling that seek to integrate the different time-scales to comprehend the factors controlling subduction zone behavior.

Primary Convener: Frédérique Leclerc, Géoazur, Nice-Sophia Antipolis University, Nice, France

Conveners: Frederick W Taylor, Institute for Geophysics, Austin, United States, Nathalie Feuillet, Institut de Physique du Globe de Paris, Paris, France and Yanhui Suo, Ocean University of China, Qingdao, China

Chairs: Nathalie Feuillet, Université de Paris Cité, Institut de Physique du Globe de Paris, CNRS, Paris, France and Yanhui Suo, Ocean University of China, Qingdao, China

OSPA Liaison: Frédérique Leclerc, Géoazur, Nice-Sophia Antipolis University, Nice, France

Cross-Listed:

G - Geodesy
S - Seismology

Co-Sponsor(s):

EGU-TS: European Geosciences Union - Tectonics and Structural Geology Division -

Index Terms:

1209 Tectonic deformation [GEODESY AND GRAVITY]
7240 Subduction zones [SEISMOLOGY]
8031 Rheology: crust and lithosphere [STRUCTURAL GEOLOGY]
8170 Subduction zone processes [TECTONOPHYSICS]

Abstracts Submitted to this Session:

M9-Class Earthquake Cycle Revealed From Vertical Deformation of the Honshu Coast (NE Japan) on Various Timescales (73559)

Mustapha Meghraoui¹, Matthieu Alexis Ferry², Silke Mechernich^1,3, Esra Cetin^1,4 and Frederic Masson⁵, (1)Institut de Physique du Globe Strasbourg, CNRS-UMR 7516, DGDA, Strasbourg Cedex, France, (2)Géosciences Montpellier, Montpellier Cedex 05, France, (3)* now at Institute for Geology and Mineralogy, University of Cologne, Cologne, Germany, (4)now at Mugla University, Department of Geology, Mugla, Turkey, (5)Institut de Physique du Globe Strasbourg, CNRS-UMR 7516, Strasbourg Cedex, France

Continuous coastal subsidence during the Holocene along a source region of the 2011 great Tohoku-oki, Japan, earthquake revealed from new paleo-geodetic data (60651)

Yuichi Niwa, Tohoku University, Sendai, Japan, Shinji Toda, Tohoku University, International Research Institute of Disaster Science, Sendai, Japan and Toshihiko Sugai, Univ Tokyo, Kashiwa, Japan

Spatial heterogeneity of stress and driving fluid pressure ratio inferred from mineral vein orientation along seismogenic megasplay fault (Nobeoka Thrust, Japan) (63070)

Makoto Otsubo¹, Ayumu Miyakawa¹, Ryoji Kawasaki², Katsushi Sato³, Asuka Yamaguchi⁴ and Gaku Kimura², (1)Geological Survey of Japan, AIST, Tsukuba, Japan, (2)University of Tokyo, Bunkyo-ku, Japan, (3)Kyoto University, Kyoto, Japan, (4)University of Tokyo, Atmosphere and Ocean Research Institute, Kashiwa, Japan

Fluvial Record of Active Deformation Along the Canyon River Fault in the Wynoochee River Valley, WA (74376)

Jaime Delano, Western Washington University, Geology, Bellingham, WA, United States, Colin B Amos, Western Washington University, Geology Department, Bellingham, WA, United States, Jack Loveless, Smith College, Geosciences, Northampton, MA, United States and Tammy M Rittenour, Utah State University, Department of Geosciences, Logan, UT, United States

Record Of Both Tectonic Related Vertical Motions and Global Sea Level Rise by Marine Terraces along an Active Arc Volcano. Example of Basse-Terre, Lesser Antilles (French West-Indies). (79101)

Marine Moysan¹, Maud Fabre², David Graindorge³, Lebrun Jean-Frederic², Mélody Philippon⁴, Boris Marcaillou⁵ and Jean-Len Léticée², (1)University of Western Brittany, Brest, France, (2)UMR 5243 Geosciences Montpellier, Antilles University, Pointe à Pitre, Guadeloupe, (3)Geo-Ocean, Univ Brest, CNRS, Ifremer, UMR5638, Plouzané, France, (4)UMR 5243 Geosciences Montpellier, Antilles University, Pointe à Pitre, France, (5)UMR GeoAzur, Nice Sophia-Antipolis University, Valbonne, France

Long-term deformation of the Lesser Antilles arc recorded by Late Pleistocene carbonate platforms: questioning our present knowledge of the megathrust seismic behavior. (62150)

Nathalie Feuillet¹, Frédérique Leclerc², Jennifer Weil Accardo¹, Guy Cabioch³, Sara Bazin⁴, Francois Beauducel⁵, Georges Boudon⁶, Christine Deplus⁷, Pierre Deschamps⁸, Lyvanne De Min⁹, Eric Jacques¹⁰, Lebrun Jean-Frederic⁹, Anne Le Friant¹¹, David Mélézan¹, Anne-Sophie B Meriaux¹², Marie Perret¹, J Taylor Perron¹³, Belle Philibosian¹⁴ and Jean-Marie Saurel¹⁵, (1)Institut de Physique du Globe de Paris, Paris, France, (2)Géoazur, Nice-Sophia Antipolis University, Nice, France, (3)Laboratoire d’océanographie et du Climat, Institut de Recherche pour le Développement, Bondy, France, (4)Geo-Ocean (CNRS-UBO-Ifremer-UBS), Plouzané, France, (5)Institut de Recherche pour le Développement (IRD), Institut des Sciences de la Terre (ISTerre), UMR 219, Grenoble, Grenoble, France, (6)Institut de Physique du Globe de Paris, Sorbonne Paris Cité, Université Paris Diderot, Paris, France, (7)IPGP & CNRS, Paris Cedex 05, France, (8)Aix Marseille Univ, CNRS, IRD, INRAE, Coll France, CEREGE, Aix-en-Provence Cedex, France, (9)Université des Antilles, Pointe-à-Pitre, Guadeloupe, (10)Institut de Physique du Globe de Paris, Université Paris-Cité, Paris, France, (11)Université de Paris, Institut de physique du globe de Paris, CNRS, Paris, France, (12)Newcastle University, Newcastle Upon Tyne, United Kingdom, (13)Massachusetts Institute of Technology, Department of Earth, Atmospheric, & Planetary Sciences, Cambridge, United States, (14)Columbia University of New York, Palisades, NY, United States, (15)Université Paris-Cité, Institut de Physique du Globe de Paris, Paris, France

Vertical forearc tectonic displacements offer insights into underlying interplate thrust zone processes: 10⁴-10⁵ yr uplift/subsidence cycles in Southwest Pacific arcs may represent recoverable plastic deformation that is often falsely attributed to other causes (67397)

Frederick W Taylor, Institute for Geophysics, Austin, United States, Yanhui Suo, Ocean University of China, Qingdao, China, Cliff Frohlich, University of Texas at Austin, Institute for Geophysics, Austin, TX, United States, Kaustubh Thirumalai, Brown University, Providence, RI, United States and Alison K Papabatu, Dept. Mines, Energy, Water Resources, Minsitry of Natural Resources, Honiara, Solomon Islands

Coseismic Topography Deformation at Sumatra (76537)

Xinyue Tong, University of Texas at Austin, Institute for Geophysics, Austin, TX, United States, Yanhui Suo, Ocean University of China, Qingdao, China and Eh Tan, Academia Sinica, Institute of Earth Sciences, Taipei, Taiwan

Insights on the Quaternary Tectonic Evolution of the SE Indonesia Arc-Continent Collision from the Study of Uplifted Coral Terraces on Sumba Island. (68611)

Frédérique Leclerc¹, Sylvain Rigaud², Hong-Wei Chiang³, Yudha Setiawan Djamil⁴, Thalya Herdiyanti⁵, Joan Johnny⁵, Sorvigenaleon Ildefonso⁶, Irwan Meilano⁷, Satria Bijaksana⁵, Hasanuddin Zainal Abidin⁵, Paul Tapponnier⁴ and Xianfeng Wang⁶, (1)Géoazur, Nice-Sophia Antipolis University, Nice, France, (2)Earth Observatory of Singapore, Nanyang Technological University, Singapore, Singapore, (3)Nanyang Technological University, Division of Earth Sciences, Singapore, Singapore, (4)Nanyang Technological University, Singapore, Singapore, (5)Bandung Institute of Technology, Bandung, Indonesia, (6)Earth Observatory of Singapore, Singapore, Singapore, (7)Institut Teknologi Bandung (ITB), Indonesia, Bandung, Indonesia

Effects of Clay Mineral Provenance and Clay Diagenesis on the Hanging Wall of a Megasplay Fault: Results from Riser Drilling, Nankai Trough Seismogenic Zone Experiment (74298)

Michael Underwood, New Mexico Tech, Earth and Environmental Sciences, Socorro, NM, United States and Chen Song, University of Missouri Columbia, Department of Geological Sciences, Columbia, MO, United States

Rheological Heterogeneity Along the Deep Subduction Interface: Insights from Exhumed HP Metamorphic Rocks Exposed on Syros Island, Greece (77442)

Alissa Kotowski¹, Whitney M Behr², Daniel F Stockli¹ and Kyle T Ashley³, (1)University of Texas at Austin, Austin, TX, United States, (2)Structural Geology and Tectonics Group, Geological Institute, Zurich, Switzerland, (3)Virginia Polytechnic Institute and State University, Blacksburg, VA, United States

Distribution of physical properties and timing of relative uplift in upper plate off Costa Rica: IODP Expedition 344 (68918)

Ayaka Saiki, University of Kochi, Kochi, Japan and Yoshitaka Hashimoto, Kochi University, Kochi, Japan

Nature and Role of Subducting Sediments on the Megathrust and Forearc Evolution in the 2004 Great Sumatra Earthquake Rupture Zone: Results from Full Waveform Inversion of Long Offset Seismic Data (73004)

Yanfang Qin and Satish Chandra Singh, Institut de Physique du Globe de Paris, Paris, France

Critical taper wedge strength varies with structural style: results from distinct-element models (80218)

Luther M Strayer, California State University East Bay, Department of Earth and Environmental Sciences, Hayward, United States and John Suppe, NTU National Taiwan University, Taipei, Taiwan

Local Seismicity Recorded by ChilePEPPER: Implications for Dynamic Accretionary Prism Response and Long-term Prism Evolution (71412)

Alexander de Moor, Oregon State University, Corvallis, OR, United States, Anne M Trehu, Oregon State University, CEOAS, Corvallis, United States and Michael D Tryon, Scripps Inst Oceanography, La Jolla, CA, United States

Dynamic effects of plate-buoyancy subduction at Manila Trench, South China Sea (69573)

Lianting Jiang¹, Wenhuan Zhan², Jie Sun³ and Jian Li¹, (1)SCSIO South China Sea Institute of Oceanology, Chinese Acaademy of Sciences, Guangzhou, China, (2)SCSIO South China Sea Institute of Oceanology, Chinese Acaademy of Sciences, Key Laboratory of Marginal Sea Geology, Guangzhou, China, (3)Florida State University, Tallahassee, FL, United States