Session Details
T1[Topic] Tectonics
Sun. Sep 13, 2026 1:30 PM - 3:00 PM JST
Sun. Sep 13, 2026 4:30 AM - 6:00 AM UTC
Sun. Sep 13, 2026 4:30 AM - 6:00 AM UTC
T1_poster(Academic Promenade)
[T1-P-1]Late Permian to Jurassic accretionary growth history along the East
Asian margin revealed by multi-proxy detrital zircon analyses of the
Ultra-Tamba and Tamba belts, SW Japan
*Keigo ADACHI1, Shogo AOKI1, Mayuko FUKUYAMA2, Yoshiaki KON3, Yuta TSUCHIYA4 (1. Graduate School of International Resource Sciences, Akita University, 2. Graduate School of Engineering Science, Akita University, 3. Geological Survey of Japan, AIST, 4. Hiruzen Institute for Geology and Chronology)
[T1-P-2]Fault Geometry and Evolution of a Newly Discovered Yokokawa Fault Outcrop at the Northernmost Segment of the ISTL, Central Japan
*Hibiki CHIBA1, Masahiro MIYAWAKI1 (1. Nuclear Regulation Authority (NRA))
[T1-P-3]Tectonic Evolution of Proto-Japan Inferred from Paleozoic Clastic Rocks in the South Kitakami Belt: Petrographic and Geochemical Constraints
*Haruki SATO1, Shogo AOKI1, Yoshiaki KON2, Haruki YAMAZAKI3 (1. Graduate School of International Resource Sciences, Akita University, 2. Geological Survey of Japan, AIST, 3. Graduate School of Medicine, Science and Technology, Shinshu University)
[T1-P-4]Zircon U-Pb ages of the Sugoroku Foliated Granite in the Hida Belt
*Shota KUROSAWA1, Tetsuya TOKIWA1, Natsuko KITANO1, Hiroshi MORI1 (1. Shinshu University)
[T1-P-5]Formation of andesites along the Median Tectonic Line and their thermal effects
*Daichi SHIRAI1, Keita NAKANO2, Youhei HAMADA3, Weiren LIN4, Arito SAKAGUCHI1 (1. Yamaguchi Univercity, 2. Hokkaido Research Organization, 3. JAMSTEC, 4. Kyoto Univercity)
[T1-P-6]The origin of the Kurosegawa Belt in Shirokawa Town, Seiyo City, Ehime Prefecture and Yusuhara Town, Kochi Prefecture, Southwest Japan
*Ryo NAKAMURA1, Tomohiro TSUJI1, Hideki IWANO,2, Tohru DANHARA2 (1. Graduate School of Sciences and Technology for innovation, Yamaguchi University, 2. Kyoto Fission-Track Co., Ltd.)
[T1-P-7]Structural Evolution of the Block Structure along the Median Tectonic Line of Southeastern Matsuyama, Ehime Prefecture.
*Yasu'uchi KUBOTA1, Toru TAKESHITA2 (1. OYO corp., 2. Iwate Univ.)
[T1-P-8]Observation of deformation microstructures of fault gauge from the outcrop of the Hanaore fault, Japan
*Motoya Miyachi1, Tetsuro Hirono1 (1. Osaka Metropolitan University)
[T1-P-9]Surface geological survey and boring survey on the Iga Fault of the Kizugawa Fault Zone
*Junichi WADA1, Koji SHIMADA1, Kiriha TANAKA1 (1. Japan Atomic Energy Agency)
[T1-P-10]Paleoseismic Investigation of the Nishigata Fault, Yamaguchi Prefecture, Japan: Onshore Segment of the Hoyo-shoto Fault Zone
*Yukari MIYASHITA1, Hoshikazu HAYASHI2, Takahiro KITAMURA2, Masao KAMETAKA2, Takashi Ogami1, Yusuke YOKOYAMA3, Yosuke MIYAIRI3, Takahiro AZE3 (1. Geological Survey of Japan, AIST, 2. Dia Nippon Engineering Consultants Co., Ltd., 3. Atmosphere and Ocean Research Institute, The University of Tokyo)
[T1-P-11]The effect of E-W compressive tectonic stresses on the development of anisotropy in elastic wave velocity and mechanical property of mudstone of Funakawa Formation in the Akita area
*Osamu Nishikawa1, Rintaro Koike2, Yuya Kofuji3, Tadao Imai1 (1. Graduate Graduate School of International Resource Sciences , Akita University, 2. Kiso-Jiban Consultants, 3. Faculty of International Resource Sciences, Akita University)
[T1-P-12]Paleostress Fields and Lithology-dependent Distribution of Mineral-filled Tensile Veins within an Archean Craton: Analysis of Rock Core Hole A Drilled near the Source Region of the Orkney Earthquake, South Africa
*Takaya HAMAGAKI1, Yoshitaka HASHIMOTO1, Takahiro HOSOKAWA1, Hiroshi OGASAWARA2 (1. Kochi Univ., 2. Ritsumeikan Univ.)
[T1-P-13]Comparative Analysis of Fault Characteristics Based on Mechanical Indicators
*Ayumi Ozeki1, Hideki Mukoyoshi2, Kotaro Aiyama3 (1. Earth Science Course, Program in Environmental Systems Science, Graduate School of Natural Science and Technology, Shimane University, 2. Shimane University, 3. Central Research Institute of Electric Power Industry)
[T1-P-14]Stress trajectories of different tectonic phases inferred from mesoscale faults in the lower Miocene Ichishi Group, Mie Prefecture
*Hideki KINOSHITA1,2, Atsushi YAMAJI1 (1. Kyoto University, 2. OYO Corporation)
[T1-P-15]Elucidation of the geological characteristics of seismic and aseismic zones in the San'in region
*Yuya KAMURA1, Hideki MUKOYOSHI2 (1. Graduate School of Shimane University, 2. Shimane University)
[T1-P-16]Improved paleostress inversion technique from orientations of veins using their thicknesses: Application to the Hozukyo area, Tamba Belt
*Yuto Yamada1, Katsushi Sato1 (1. Graduate School of Science, Kyoto University)
[T1-P-17]Paleostress inversion and constraints on the formation age of faults in the Eastern Outer Zone of the Kii Peninsula
*Koshi KIMURA1, Tetsuya TOKIWA1, Kojiro USUI2, Hiroshi MORI1 (1. Shinshu University, 2. Nippon Koei Co., Ltd.)
[T1-P-18]Reverse-faulting stress around southern Suzuka Mountains estimated from active faults and minor faults
*Kazuki TOYODOME1, Katsushi SATO1 (1. Graduate School of Science, Kyoto University)
[T1-P-19]Stress History Analysis of the Neodani Fault using a Stress Tensor Inversion Technique
*Kazushi HYAKKOKU2, Tomoyuki OHTANI1, Touma ARAKI1 (1. Department of Civil and Environmental Engineering, Faculty of Engineering, Gifu University, 2. Graduate School of Natural Science and Technology, Gifu University)
[T1-P-20]Stress inversion analysis using stylolites developed in the Nashimoto Limestone of the Izu Peninsula
*Rikuto KOREEDA1, Katsushi SATO1 (1. Graduate School of Science, Kyoto University)
[T1-P-21]Mechanical validation of the doming uplift model for the southern Ou Backbone range based on stress inversion analysis
*Nariaki NISHIYAMA1, Noriaki ABE2, Tomonori TAMURA1, Shoma FUKUDA1, Shigeru SUEOKA1, Takahiro TAGAMI3 (1. Tono Geoscience Center, Japan Atomic Energy Agency, 2. National Institute of Advanced Industrial Science and Technology, 3. Kyoto University)
[T1-P-22]Performance Evaluation of the Fold Test in Fault-Slip Analysis
*Gentaro Kobayashi1, Katsushi Sato1 (1. Division of Earth and Planetary Sciences, Graduate School of Science, Kyoto University)
[T1-P-23]Mode Ⅲ crack growth pattern from multi shear planes observed by strike-slip faulting analogue experiments using dry sand layer
*Satoshi TONAI1, Hiiro ABE1, Towa AMANO1, Yasuhiro YAMADA2 (1. Kochi University, 2. Kyushu University)
[T1-P-24]Three-Dimensional Deformation and Strain Analysis of Strike-slip Sandbox Fault Models Using X-ray CT Images and Digital Volume Correlation
Kazuo Mizoguchi2, Ryuhei Sanjo2, Keiichi Ueta2, *takahiro iida1 (1. CERES, 2. Central Research Institute of Electric Power Industry)
[T1-P-25]Repeated Horst-Graben Subduction Drives Distributed Shear-Zone Development in Shallow Subduction Zones
*Hiroaki KOGE1, Atsushi NODA1, Ayumu MIYAKAWA1, Takami TACHIBANA2,1, Michelle M NISHIMOTO4,3,1, Yuichi OKUMA6,5,1, Nodoka ODA2,1, Satoshi TONAI2, Naotomo KANEKO1, Hiroshi SAKUMA7, Makoto OTSUBO1 (1. AIST, 2. Kochi University, 3. Japan Women's University, 4. University of Massachusetts Amherst, 5. Atmospheric and Ocean Research Institute, University of Tokyo, 6. Ocean Engineering & Development Co., Ltd. , 7. National Institute for Materials Science (NIMS))