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

Sun. May 24, 2026 3:30 PM - 5:00 PM 301B (International Conference Hall, Makuhari Messe)

Chairperson:Maruishi Takafumi(National Research Institute for Earth Science and Disaster Resilience), Katsuragi Hiroaki(Department of Earth and Space Science, Osaka University)

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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3:30 PM - 3:45 PM

[SCG69-17] Effects of pore pressure on extension-shear mixed-mode fracture in porous and non-porous rocks

*Hiroko Kitajima¹, Cate Tilley¹, Casey Ruplinger¹, Jacob Tristan¹, Daniel Worley¹ (1. Texas A&M University College Station)

3:45 PM - 4:00 PM

[SCG69-18] Tensile fracturing inside rigid inclusions and its implications as paleostress markers

*Tridib Kumar Mondal¹, Gourav Das¹, Sirshendu Kumar Biswas², P. N. R. L. Sudhishna³, Swagata Singha⁴, Sourav Mondal³ (1. Geological Studies Unit, Indian Statistical Institute, 203, B. T. Road, Kolkata-700108, West Bengal, INDIA, 2. Hiroshima University, Graduate School of Advanced Science and Engineering, Earth and Planetary Systems Science Program, Kagamiyama 1-3-1, Higashi Hiroshima, Hiroshima 739-8256, JAPAN, 3. Department of Chemical Engineering, Indian Institute of Technology Kharagpur, Kharagpur-721302, INDIA, 4. Department of Geological Sciences, Jadavpur University, Kolkata-700032, INDIA)

4:00 PM - 4:30 PM

[SCG69-19] A shock recovery method using decaying shock waves and Its application to Earth and planetary materials

★Invited Papers

*Kosuke Kurosawa^1,2, Takafumi Niihara³, Haruka Ono⁴, Christopher Hamann⁵, Toshihiro Tada⁶, Takayoshi Nagaya⁷, Hidenori Genda⁸, Naotaka Tomioka⁹ (1. Graduate School of Human Development and Environment, Kobe University, 2. Planetary Exploration Research Center, Chiba Institute of Technology, 3. Department of Applied Science, Okayama University of Science, 4. Graduate School of Science, Kyoto University, 5. Museum für Naturkunde, 6. Institute for Geo-Cosmology, Chiba Institute of Technology, 7. Faculty of Education and Integrated Arts and Sciences, Waseda University, 8. Earth-Life Science Institute, Institute of Science Tokyo, 9. Kochi Institute for Core Sample Research, JAMSTEC)

4:30 PM - 4:45 PM

[SCG69-20] Rock fracture at slow to ultra-high strain rates: toward a unified understanding from earthquakes to asteroid impacts

*Yushin Mori¹, Keishi Okazaki¹, Kosei Ogita², Jun Muto² (1. Hiroshima University, 2. Tohoku University)

4:45 PM - 5:00 PM

[SCG69-21] Formation Process and Timing of Type I Feather Features in Shocked Quartz

*Toshihiro Tada¹, Auriol Rae², Hiroshi Sakuma³, Naotaka Tomioka⁴, Takayoshi Nagaya⁵, Kosuke Kurosawa^6,7 (1. Chiba Institute of Technology, Institute for Geo-Cosmology, 2. School of Geosciences, University of Edinburgh, 3. Research Center for Electronic and Optical Materials, National Institute for Materials Science, 4. Kochi Institute for Core Sample Research, Xstar, Japan Agency for Marine-Earth Science and Technology, 5. Department of Earth Sciences, Department of Science, School of Education, Faculty of Education and Integrated Arts and Sciences, Waseda University, 6. Graduate School of Human Development and Environment, Kobe University, 7. Planetary Exploration Research Center, Chiba Institute of Technology)

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