*Masaaki MIYAHARA¹, Eiji OHTANI², Ahmed EL GORESY³, Philippe GILLET⁴ (1.DEPSS, Graduate School of Science, Hiroshima Univ., 2.Institute of Mineralogy, Petrology and Economic Geology, Graduate School of Science, Tohoku Uni., 3.BGI, 4.EPFL)

*Takafumi NIIHARA¹, David A. KRING² (1.NIPR / LPI / SSERVI, 2.LPI / SSERVI)

*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)

*Tomoaki KUBO¹, Mari KONO¹, Takumi KATO¹ (1.Dept. Earth Plant. Sci., Kyushu Univ.)

Hiroki NAGAOKA¹, *Akiko NAKAMURA¹, Ayako SUZUKI², Sunao HASEGAWA² (1.Graduate School of Science, Kobe University, 2.Institute of Space and Astronautical Science)

*Moe KAMIOKA¹, Kentaro TERADA¹, Hiroshi HIDAKA², Kosuke KIMURA², Sergey SKUBLOV³ (1.Osaka University, Department of Earth and Space Science, 2.Guraduate school of Science, Hiroshima University, 3.Institute of Precambrian Geology and Geochronology,)