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