*Chuichi Kakuta¹ (1.none)

*Shintaro Azuma¹, Ryuichi Nomura², Yuki Nakashima³, Kentaro Uesugi⁴, Toru Shinmei², Tetsuo Irifune² (1.Department of Earth and Planetary Sciences, Faculty of Science, Kyushu University, 2.Ehime University, Geodynamics Research Center, 3.Tokyo Institute of Technology, 4.Japan Synchrotron Radiation Research Institute)

*Asako Takamasa¹, Katsuhiko Suzuki¹ (1.Japan Agency for Marine-Earth Science and Technology)

*Takuya Moriguti¹, Akira Yoneda¹, Eiji Ito¹ (1.Institute for Planetary Materials, Okayama University)

*Akira Ishikawa^1,2, Katsuhiko Suzuki², Tetsu Kogiso³, Norikatsu Akizawa³ (1.Department of Earth Science and Astronomy, The University of Tokyo, 2.Research and Development Center for Submarine Resources, Japan Agency for Marine-Earth Science and Technology, 3.Graduate Scool of Human and Environmental Studies, Kyoto University)

*Keisuke ISHII¹, Eiichi TAKAZAWA^2,3, Yoshihiko Tamura³ (1.Graduate School of Science and Technology, Niigata University, 2.Department of Geology, Faculty of Science, Niigata University, 3.R&D Center for ODS, JAMSTEC)