*Masao SAKAMOTO¹, Kiyotaka NINAGAWA², Hirotsugu NISHIDO², Arnold GUCSIK³ (1.Iida City Museum, 2.Okayama University of Science, 3.University of Johannesburg)

*Yu CHANG¹, Masahiro KAYAMA², Eiichi TAJIKA³, Yasuhito SEKINE¹, Toshimori SEKINE⁴, Hirotsugu NISHIDO⁵, Takamichi KOBAYASHI⁶ (1.Earth & Planetary Sci., Univ. of Tokyo, 2.Earth & Planetary Sci., Kobe Univ., 3.Complexity Sci. & Eng., Univ. of Tokyo, 4.Earth & Planetary Sci., Hiroshima Univ., 5.Research Institute of Natural Science, Okayama Univ. of Science., 6.National Institute for Material Science (NIMS))

*Masahiro KAYAMA¹, Naotaka TOMIOKA², Eiji OHTANI³, Yusuke SETO¹, Jun-ichi FUKUDA⁴, Toshimori SEKINE⁵, Masaaki MIYAHARA⁵, Shin OZAWA³, Akira MIYAKE⁶, Kazushige TOMEOKA¹, Timothy Fagan⁷, Hirotsugu NISHIDO⁸ (1.Department of Earth and Planetary Sciences, Faculty of Science, Kobe University, 2.Kochi Institute for Core Sample Research, Japan Agency for Marine-Earth Science and Technology, 3.Department of Earth and Planetary Materials Science, Graduate School of Science, Tohoku University, 4.Department of Geology and Geophysics, Texas A&M University, 5.Graduate School of Science, Hiroshima University, 6.Department of Geology and Mineralogy, Graduate School of Science, Kyoto University, 7.Department of Earth Sciences, School of Education, Waseda University, 8.Department of Biosphere-Geosphere Science, Okayama University of Science)

*Masahiro KAYAMA¹, Naotaka TOMIOKA², Eiji OHTANI³, Yusuke SETO¹, Jun-ichi FUKUDA⁴, Toshimori SEKINE⁵, Masaaki MIYAHARA⁵, Shin OZAWA³, Akira MIYAKE⁶, Kazushige TOMEOKA¹, Timothy Fagan⁷, Hirotsugu NISHIDO⁸ (1.Department of Earth and Planetary Sciences, Faculty of Science, Kobe University, 2.Kochi Institute for Core Sample Research, Japan Agency for Marine-Earth Science and Technology, 3.Department of Earth and Planetary Materials Science, Graduate School of Science, Tohoku University, 4.Department of Geology and Geophysics, Texas A&M University, 5.Graduate School of Science, Hiroshima University, 6.Department of Geology and Mineralogy, Graduate School of Science, Kyoto University, 7.Department of Earth Sciences, School of Education, Waseda University, 8.Department of Biosphere-Geosphere Science, Okayama University of Science)

*Nobuhiro KUSANO¹, Hirotsugu NISHIDO¹, Kiyotaka NINAGAWA¹ (1.Okayama University of Science)

*Syuhei OHGO¹, Hirotsugu NISHIDO¹, Kiyotaka NINAGAWA¹ (1.Okayama University of Science)