| Session Details | |
| Section | SE - Solid Earth Sciences |
| Session Title | Nankai Trough Seismogenic Zone Experiment and Related Studies of Tectonics in the Western Pacific |
| Main Convener | Prof. Kyuichi Kanagawa (Chiba University, Japan) |
| Co-convener(s) | Dr. Keir Becker (University of Miami, United States) Prof. Masataka Kinoshita (The University of Tokyo, Japan) Prof. Yi-Ching Yeh (National Central University, Taiwan) |
| Session Description | The Nankai Trough Seismogenic Zone Experiment (NanTroSEIZE) is a multidisciplinary investigation of fault mechanics and seismogenesis along the megathrust at the Nankai Trough subduction zone, and includes reflection and refraction seismic imaging, direct sampling by drilling, in situ measurements, and long-term monitoring in conjunction with laboratory and numerical modeling studies. During the past 12 IODP expeditions off Kii Peninsula since 2007, 15 sites have been drilled by D/V "Chikyu" down to depths from 100s of meters to more than 3000 meters below seafloor, where the inner and outer wedge of the Nankai margin has been sampled extensively, and two state-of-the-art real-time downhole observatories are now in operation. NanTroSEIZE is now at the final stage with only one more expedition planned for resuming riser drilling toward the megathrust at ~5200 meters below seafloor starting from October, 2018. In this session, we expect presentations not only on the NanTroSEIZE project, but also on other related studies in the western Pacific. We welcome presentations on, but are not limited to, seismic imaging, borehole logging and monitoring, chemical analyses of pore water and mud gas, lithology, structures, physical properties and laboratory experiments of cuttings and core samples, and theoretical and numerical modeling. |