[2poster68-80] T13［Topic Session］Subduction zones and on-land accretionary complexes

Mon. Sep 18, 2023 1:30 PM - 3:00 PM T13_poster (Yoshida-South Campus Academic Center Bldg.)

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[T13-P-1] Modeling seismic wave radiation from quartz vein concentrated zone in Makimine mélange

*Suguru YABE¹, Makoto Otsubo¹, Kotaro Ujiie² (1. Geological Survey of Japan, AIST, 2. University of Tsukuba)

[T13-P-2] (entry) Seismic evidence for hydrofracturing above a megathrust zone

*【ECS】Ito Yosuke¹, Nakajima Junichi¹ (1. Tokyo Institute of Technology)

[T13-P-3] (entry) Constraints on the depth and the stable fluid pressure for shear veins: Yokonami mélange, The Cretaceous Shimanto Belt

*【ECS】Sora HIRAOKA¹, Yuki TAKAHASHI¹, Takahiro HOSOKAWA¹, Yoshitaka HASHIMOTO¹ (1. Kochi University)

[T13-P-4] (entry) The Okitsu Fault, large scale exposed fault comparable with present seismogenic fault in subduction zone

*Sho SUMIDA¹, Masato ICHIKI², Arito SAKAGUCHI¹ (1. Yamaguchi University Graduate School of Sciences and Technology for Innovation, 2. ASANO TAISEIKISO ENGINEERING Co.,Ltd.)

[T13-P-5] Strain analysis on a cataclastic zone in an exhumed accretionary complex by Anisotropy of Magnetic Susceptibility: the Yokonami mélange, the Cretaceous Shimanto Belt

*Jinpei Mitani¹, Yoshitaka Hashimoto¹ (1. Kochi university)

[T13-P-6] Isotopic variation of syn-tectonic calcite veins formed in stress regimes located in subducted plates boundary-implication of geofluids evolution with seismic cycle in Mugi mélange

*Wenjing WANG^1,2, Yoshitaka HASHIMOTO¹, Takahiro HOSOGAWA¹, Masafumi MURAYAMA¹ (1. Kochi University, 2. China University of Geoscience (Wuhan))

[T13-P-7] Anisotropy of consolidation in the Mio–Pleistocene forearc basin located in the Boso peninsula, central Japan

*Nana Kamiya¹, Masahiro Miyazaki², Weiren Lin¹, Akira Hayashida³ (1. Kyoto University, 2. Kyoto University (Shigmaxyz), 3. Doshisha University)

[T13-P-8] (entry) Frictional properties of faults in shallow portion
of subduction zones: the Sengen Fault, southern Miura Peninsula, central Japan

*【ECS】Yuki KASAI¹, Akito TSUTSUMI¹, Yuzuru YAMAMOTO² (1. Graduate School of Science, Kyoto University, 2. Department of Planetology, Graduate School of Science, Kobe University)

[T13-P-9] (entry) Experimental study on shear-induced liquefaction along a fault in shallow portion of accretionary prism

*Keigo Tashiro¹, Tsutsumi Akito¹, Yuzuru Yamamoto², Gonghui Wang³, Chengrui Chang³, Chao Huang³ (1. Graduate School of Science, Kyoto University, 2. Graduate School of Science, Kobe University , 3. Disaster Prevention Research Institute, Kyoto University)

[T13-P-10] The relationship between the basal weak layer and the development of the décollement in the Coulomb wedge

*【ECS】Takami TACHIBANA¹, Satoshi TONAI¹, Hiroaki KOGE² (1. Kochi University, 2. AIST)

[T13-P-11] Shallow Slow Slip Events (SSEs) detected by borehole and DONET observatories: comparison of SSEs between 2020 and 2023 March

*Keisuke Ariyoshi¹, Takeshi Iinuma¹, Yojiro Yamamoto¹, Yasumasa Miyazawa¹, Sergey Varlamov¹, Hiroyuki Matsumoto¹, Yuya Machida¹, Demian Saffer³, Eiichiro Araki¹, Hiroki Horikawa¹, Kentaro Sueki¹, Shuichiro Yada¹, Narumi Takahashi², Takane Hori¹, Shuichi Kodaira¹ (1. JAMSTEC, 2. NIED, 3. University of Texas, Austin)

[T13-P-12] Porosity of gravels of submarine landslide deposit of frontal prism in the off-Kumano Nankai Trough

*Rina Fukuchi¹, Yang Zhao², Kazuya Shiraishi³, Mari Hamahashi⁴, Masafumi Murayama⁵, Juichiro Ashi², Asuka Yamaguchi² (1. Naruto University of Education, 2. Atmosphere and Ocean Research Institute, The University of Tokyo , 3. Japan Marine-Earth Science and Technology (JAMSTEC), 4. Yamaguchi University, 5. Kochi University)

[T13-P-13] Seismic surveys in the northern Japan Trench -from outer rise to landward slope-

*Yasuyuki Nakamura¹, Tetsuo No¹, Ryo Miura¹, Gou Fujie¹, Seiichi Miura¹, Shuichi Kodaira¹, Tetsuro Tsuru², Jin-Oh Park³ (1. JAMSTEC, 2. Tokyo Univ. of Marine Science and Technology, 3. Univ. Tokyo)

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