Exploring the Characteristics and Dynamics of Oceanic Plates Entering Subduction Zones

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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, Yokohama, Japan
Conveners:  Douglas Wiens, Washington University in St Louis, Earth and Planetary Sciences, St. Louis, MO, United States, Asuka Yamaguchi, University of Tokyo, Bunkyo-ku, Japan and John Naliboff, University of California Davis, Davis, CA, United States
Co-Organized with:
Tectonophysics, Seismology, and Volcanology, Geochemistry and Petrology
Index Terms:

Abstracts Submitted to this Session:

Yasuyuki Nakamura1, Gou Fujie2, Asuka Yamaguchi3, Shuichi Kodaira2 and Seiichi Miura2, (1)Japan Agency for Marine-Earth Science and Technology, R&D Center for Earthquake and Tsunami, Yokohama, Japan, (2)JAMSTEC, Yokohama, Japan, (3)Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa, Japan
Elenora van Rijsingen1,2, Serge Lallemand2, Michel Peyret2, Fabio Corbi2, Francesca Funiciello1, Diane Arcay2 and Arnauld Heuret2,3, (1)Università Roma Tre, Dip. Scienze, Rome, Italy, (2)Géosciences Montpellier, Montpellier, France, (3)Université de Guyane, Cayenne, French Guiana
Simanchal Padhy1, Takashi Furumura2 and Takuto Maeda2, (1)Earthquake Research Institute, University of Tokyo, Tokyo, Japan, (2)ERI, The University of Tokyo, Tokyo, Japan

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