*Masahiro KAYAMA¹, Naotaka TOMIOKA², Toshimori SEKINE¹, Jens G{S:0323}TZE³, Hirotsugu NISHIDO⁴, Eiji OHTANI⁵, Masaaki MIYAHARA¹, Shin OZAWA⁵ (1.Department of Earth and Planetary Systems Science, Graduate School of Science, Hiroshima University, 2.Institute for Study of the Earth's Interior, Okayama University, 3.Department of Mineralogy, TU Bergakademie Freiberg, 4.Depertment of Biosphere-Geosphere Science, Okayama University of Science, 5.Department of Earth and Planetary Materials Science, Graduate School of Science, Tohoku University)

Shohei KANEKO¹, *Eiji OHTANI¹, Masaaki MIYAHARA², Shin OZAWA¹, Tomoko ARAI³ (1.Tohoku University, 2.Hiroshima University, 3.Chiba Institute of Technology)