*Shogo Numata¹, Hirochika Sumino², Yuji Orihashi¹, Shiki Machida³, Ryo Anma⁴, Satoru Haraguchi⁵, Natsue Abe⁶ (1.department of Earth and Environmental Sciences, Graduate School of Hirosaki University, 2.Department of General Systems Studies, Graduate School of Arts and Sciences, The University of Tokyo, 3.Ocean Resources Research Center for Next Generation, Chiba Institute of Technology, 4.Graduate School of Technology, Industrial and Social Sciences, Tokushima University, 5.Earthquake Research Institute, The University of Tokyo, 6.Mantle Drilling Promotion Office, MarE3, Japan Agency for Marine-Earth Science and Technology)

*Taichi Sakai¹, Hiroko Watanabe¹, Kunio Inoue¹, William F McDonough^1,2,3, Natsue Abe⁴, Eiichiro Araki⁴, Takafumi Kasaya⁴, Masanori Kyo⁴, Noriaki Sakurai⁴, Kenta Ueki⁴, Hiroshi Yoshida⁴ (1.Tohoku University,Research Center for Neutrino Science, 2.Tohoku University, 3.Maryland University, 4.JAMSTEC)

*Shigenobu Hirose¹, Natsue Abe¹, Noriko Hasebe², Kohta Murase³, Yasushi Hoshino⁴, Takashi Kamiyama⁵ (1.Japan Agency for Marine-Earth Science and Technology, 2.Kanazawa University, 3.Pennsylvania State University, 4.Kanagawa University, 5.Hokkaido University)

*Hiroko Watanabe¹, Kunio Inoue¹, Taichi Sakai¹, William F McDonough^1,2,3, Natsue Abe⁴, Eiichiro Araki⁵, Takafumi Kasaya⁵, Masanori Kyo⁵, Kenta Ueki⁵, Tamano Omata⁵, Yasuhiro Yamada⁶ (1.Research Center for Neutrino Science, Tohoku University, 2.Department of Earth Science, Tohoku University, 3.University of Maryland, 4.Mantle Drilling Promotion Office, MarE3, Japan Agency for Marine-Earth Science and Technology, 5.Japan Agency for Marine-Earth Science and Technology, 6.Kyushu University)

*Natsue Abe^1,2, Kohei Hatakeyama³ (1.Mantle Drilling Promotion Office, MarE3, Japan Agency for Marine-Earth Science and Technology , 2.Graduate School of Natural Science& Technology, Kanazawa University, 3.Meisei University)

*Natsue Abe^1,2, Keishi Okazaki³, Ikuo Katayama⁴, Kohei Hatakeyama⁵, Yuya Akamatsu⁴, Kumpei Nagase⁴ (1.Mantle Drilling Promotion Office, MarE3, Japan Agency for Marine-Earth Science and Technology , 2.Graduate School of Natural Science& Technology, Kanazawa University, 3.KCC, X-Star, Japan Agency for Marine-Earth Science and Technology , 4.Hiroshima University, 5.Meisei University)

*Natsue Abe^1,2, Andrew McCaig³, Susan Lang⁴, Donna Blackman⁵, Benoit Ildefonse⁶, Yasuhiko Ohara^7,8, Beth Orcutt⁹, Benedicte Menez¹⁰, Marvin Lilley¹¹, Geoffery Wheaet¹², Johan Lissenberg¹³, Frieder Klein¹⁴, William Seyfried¹⁵, Muriel Andreani¹⁶, Barbara John¹⁷, Marguerite Godard⁶, Antony Morris¹⁸, Esther Schwarzenbach¹⁹, Christopher MacLeod¹³, Ivan Savov³, Alistair Harding²⁰, Gretchen Früh-Green²¹ (1.Mantle Drilling Promotion Office, MarE3, Japan Agency for Marine-Earth Science and Technology , 2.Graduate School of Natural Science & Technology, Kanazawa University, 3.University of Leeds, 4.University of South California, 5.UC Santa Cruz, 6.University of Montpellier, 7.Graduate School of Environmental Studies, Nagoya University, 8.IMG, Japan Agency for Marine-Earth Science and Technology, 9.Bigelow Laboratory for Ocean Sciences, 10.IPGP Paris, 11.University of Washington, 12.University of Alaska, Fairbanks, 13.Cardiff University, 14.Woods Hole Oceanographic Institute, 15.University of Minnesota, 16.University of Lyon, 17.University of Wyoming, 18.University of Plymouth, 19.Free University Berlin, 20.UC San Diego, 21.ETH, Zürich)

*Yuya Akamatsu¹, Kumpei Nagase¹, Natsue Abe², Keishi Okazaki², Kohei Hatakeyama³, Ikuo Katayama¹ (1.Hiroshima University, 2.JAMSTEC, 3.Meisei University)