Session Details

[P-PS12]Formation and evolution of planetary materials in the Solar System

Thu. May 28, 2026 10:45 AM - 12:15 PM JST
Thu. May 28, 2026 1:45 AM - 3:15 AM UTC
302 International Conference Hall, Makuhari Messe
convener:Minako Hashiguchi(Nagoya University), Atsushi Takenouchi(Kyoto University), Toru Matsumoto(The Hakubi Center for Advanced Research, Kyoto University), Noriyuki Kawasaki(Department of Earth and Planetary Sciences, Graduate School of Science, Hokkaido University), Chairperson:Matsumoto Toru(The Hakubi Center for Advanced Research, Kyoto University), Takenouchi Atsushi(Kyoto University)
In this session, we will discuss the material evolution in the Solar System based on analyses of extraterrestrial materials and experimental studies. We will overview recent knowledge from primitive materials, such as chondrites, interplanetary dust particles, and returned samples by space missions (e.g. Hayabusa 2 mission). Research on meteoritic parent body processes such as aqueous alteration, thermal metamorphism, shock metamorphism, volcanic activity, and core-mantle-crust differentiation will also be discussed. The topics of this session include experimental studies which, together with meteorite studies, help us to understand the material formation/evolution in the Solar System as well as processes on meteorite parent bodies. Presentations on new innovative analytical and theoretical techniques in various research fields (chemistry, theoretical calculation, physical property), and exploratory research by students are highly welcome to improve future studies of the Solar System evolution. This session is J (Japanese) session to promote active discussion on the evolution of solar system materials and to foster our community that includes beginner students. However, presentations in English are also welcome. Presentations on the general formation processes of materials in space are recommended for the "Origin and evolution of materials in space" session, and observational studies on small solar system bodies for the "Small Solar System Bodies: New perspectives on the origin and evolution of the Solar System" session (both E sessions).

[PPS12-07]Mineral-catalyzed Oligomer Formation under Simulated Europa Seafloor Conditions

*Chihaya Yamamoto1, Ayako Shinozaki2, Koichi Mimura1 (1.Graduate School of Environmental Studies, Nagoya University, 2.Faculty of Science, Hokkaido University)

[PPS12-08]Chemical Evolution of Vapor Plumes Produced by Micrometeoroid Impacts on Saturn’s Rings

*Yoko Ochiai1, Ryuki Hyodo1,3,4,5, Shigeru Ida1, Daigo Shoji2 (1.Earth-Life Science Institute, Institute of Science Tokyo, 2.Department of Earth and Planetary Science, The University of Tokyo, 3.Université Paris Cité, Institut de Physique du Globe de Paris, CNRS, 4.Graduate School of Artificial Intelligence and Science, Rikkyo University, 5.SpaceData Inc.)

[PPS12-09]Experimental Study on Precursors of Framboidal Magnetite in Asteroids

*Tomohito Kondo1, Masaya Sakakibara1, Tomoya Yamazaki1, Yuki Kimura1 (1.Institute of Low Temperature Science, Hokkaido University)

[PPS12-10]Microscale Distribution of Be and B in Ryugu: Mineralogical Constraints from In Situ Ion Imaging

*Tak Kunihiro1, Noah Brendan Miklusicak1 (1.Institute for Planetary Materials, Okayama University)

[PPS12-11]Mineralogical Study of Shock Melt in the Sample from Asteroid Ryugu

*Taiga Takase1, Megumi Matsumoto1, Tomoki Nakamura1, Yoshino Fukuda1, Rieto Kawada1, Seima Ishida1, Shohei Yamashita2, Yoshio Takahashi3 (1.Tohoku University, 2.High Energy Accelerator Research Organization (KEK) , 3.The University of Tokyo)

[PPS12-12]Constraints on the internal structure and evolutionary timescale of the parent body based on the lithological diversity of Ryugu and CI chondrites and thermal evolution modeling

*Sojiro Yamazaki1, Takashi Mikouchi1, Michael Zolensky2 (1.The University of Tokyo, 2.NASA Johnson Space Center)