convener:Kenji Kawai(Department of Earth and Planetary Science, School of Science, University of Tokyo), Jun Tsuchiya(Geodynamics Research Center, Ehime University), Takayuki Ishii(Institute for Planetary Materials, Okayama University), Riko Iizuka-Oku(Department of Earth Sciences, School of Education, Waseda University), Chairperson:Riko Iizuka-Oku(Department of Earth Sciences, School of Education, Waseda University), Takayuki Ishii(Institute for Planetary Materials, Okayama University), Kenji Kawai(Department of Earth and Planetary Science, School of Science, University of Tokyo), Jun Tsuchiya(Geodynamics Research Center, Ehime University)