[S-CG69] Rheology, fracture and friction in Earth and planetary sciences

Sun. May 24, 2026 10:45 AM - 12:15 PM 301B (International Conference Hall, Makuhari Messe)

Chairperson:Sawa Sando(Deparment of Earth Science, Graduate School of Science, Tohoku Univeristy), Azuma Shintaro(Department of Earth and Planetary Sciences, School of Science, Institute of Science Tokyo)

This session aims to join people from various research areas in the earth and planetary sciences and to stimulate discussion beyond the boundaries of each research area. Our goal is to deepen our understanding of dynamics in geosciences by looking over whole areas in the earth and planetary sciences from the viewpoint of PHYSICS OF DEFORMATION, FLOW, AND FRACTURE. We welcome any field (e.g., earthquake, volcano, earth surface, crust, mantle and the core, and other planets and satellites) and any approach (e.g., laboratory experiments, numerical simulations, field observations, and theories). Oral presentations in Japanese will also be accepted. Using one's first language has been shown to reduce cognitive load and support deeper, faster, and more precise discussion (Takano and Noda, 1993; Shinozuka et al., 2021), and provides students and early-career researchers with a valuable step toward preparing for international presentations (Kakitani and Kormos, 2024; Liu et al., 2021). Slides and posters must be prepared in English (Japanese translation optional), and English presentations are welcome so that non-Japanese participants can follow and join the discussion.

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10:45 AM - 11:00 AM

[SCG69-07] Effect of Dislocations on Rock Anelasticity: In situ Forced Oscillation Test and Theoretical Modeling

*Riku Sugimoto¹, Kosuke Yabe², Yasuko Takei¹, Yusuke Miyatake¹ (1. Department of Earth and Planetary Science, School of Science, The University of Tokyo, 2. National Institute of Advanced Industrial Science and Technology)

11:00 AM - 11:15 AM

[SCG69-08] 1ppg vs area-based CPO of olivine: Grain-size control on seismic anisotropy and deformation mechanisms in the upper mantle

*Kazuki Matsuyama ^1,2, Miki Tasaka³, Lars N. Hansen⁴, Katsuyoshi Michibayashi^1,5, Takehiko Hiraga⁶ (1. Department of Earth and Planetary Sciences, GSES, Nagoya University, 2. Géosciences Montpellier, Université de Montpellier, CNRS, Montpellier, France, 3. Department of Geoscience, Faculty of Science, Shizuoka University, 4. Department of Earth and Environmental Sciences, University of Minnesota Twin Cities, Minneapolis, MN, USA, 5. Volcanoes and Earth's Interior Research Center, IMG, JAMSTEC, 6. Earthquake Research Institute, The University of Tokyo)

11:15 AM - 11:30 AM

[SCG69-09] In situ deformation experiments on metastable olivine under the pressure-temperature conditions of deep subducted slabs

*Kohei Matsuda¹, Tomohiro Ohuchi¹, Sayako Inoué¹, Yuji Higo², Noriyoshi Tsujino², Sho Kakizawa² (1. Geodynamics Research Center, Ehime University, 2. Japan Synchrotron Radiation Research Institute)

11:30 AM - 11:45 AM

[SCG69-10] Hardening mechanisms in low-temperature plastic deformation of quartz: Insight from deformation experiments on single crystals of wet quartz

*Hiroaki Yokoyama^1,2, David Wallis³, Jun Muto¹ (1. Department of Earth Sciences, Tohoku University, 2. Earth and Planetary Systems Science Program, Hiroshima University, 3. Department of Earth Sciences, University of Cambridge)

11:45 AM - 12:00 PM

[SCG69-11] Stress corrosion cracking associated with subgrain rotation recrystallization in quartz: Implications for grain-size reduction process

*Takuro Yoshioka¹, Takamoto Okudaira¹, Seto Yusuke¹, Akira Miyake², Yohei Igami², Hideo Takagi³ (1. Osaka Metropolitan University, 2. Kyoto University, 3. Waseda University)

時間調整 (12:00 PM - 12:15 PM)

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