*Shoko Imamura¹, Natsumi Noda¹, Yasuhito Sekine¹, Soichiro Uesugi¹, Minako Kurisu¹, Chihiro Miyamoto¹, Haruhisa Tabata¹, Takashi Murakami¹, Yoshio Takahashi¹ (1.University of Tokyo)

*Yoko Kebukawa¹, Motoo Ito², Michael E. Zolensky³, Aiko Nakato⁴, Hiroki Suga⁵, Yoshio Takahashi⁶, Takeichi Takeichi^7,8, Kazuhiko Mase^7,8, Queenie H. S. Chan⁹, Marc Fries³, Kensei Kobayashi¹ (1.Faculty of Engineering, Yokohama National University, 2.Kochi Institute for Core Sample Research JAMSTEC, 3.ARES, NASA Johnson Space Center, 4.Kyoto University, Division of Earth and Planetary Sciences, 5.Graduate School of Science, Hiroshima University, 6.Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, 7.Institute of Materials Structure Science, High-Energy Accelerator Research Organization (KEK), 8.Department of Materials Structure Science, SOKENDAI (The Graduate University for Advanced Studies), 9.Planetary and Space Sciences, Department of Physical Sciences, The Open University)

*Yoko Kebukawa¹, Motoo Ito², Michael E. Zolensky³, Aiko Nakato⁴, Hiroki Suga⁵, Yoshio Takahashi⁶, Takeichi Takeichi^7,8, Kazuhiko Mase^7,8, Queenie H. S. Chan⁹, Marc Fries³, Kensei Kobayashi¹ (1.Faculty of Engineering, Yokohama National University, 2.Kochi Institute for Core Sample Research JAMSTEC, 3.ARES, NASA Johnson Space Center, 4.Kyoto University, Division of Earth and Planetary Sciences, 5.Graduate School of Science, Hiroshima University, 6.Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, 7.Institute of Materials Structure Science, High-Energy Accelerator Research Organization (KEK), 8.Department of Materials Structure Science, SOKENDAI (The Graduate University for Advanced Studies), 9.Planetary and Space Sciences, Department of Physical Sciences, The Open University)

*Chihiro Miyamoto¹, Yoshinori Iizuka², Kohei Sakata³, Yoshio Takahashi¹ (1.Department of Earth and Planetary Science, Department of Science, The University of Tokyo, 2.Institute of Low Temperature Science, Hokkaido University, 3.Department of Earth and Planetary Systems Science, Graduate School of Science, Hiroshima University)

*Yoshio Takahashi¹, Minako Kurisu¹ (1.Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo)

*Yamaguchi Akiko¹, Tasuku Honda, Yoshio Takahashi¹ (1.University Of Tokyo)

*Shogo Aoki¹, Shuhei Sakata², Ryoichi Nakada³, Teruhiko Kashiwabara³, Takeshi Ohno², Yoshio Takahashi⁴, Harilaos Tsikos⁵, Tsuyoshi Komiya¹ (1.Graduate School of arts and science, the University of Tokyo, 2.Department of Chemistry, Gakushuin University, 3.Japan Agency for Marine-Earth Science and Technology, 4.Graduate School of Science, the University of Tokyo, 5.Department of Geology, Rhodes University)

*Shogo Aoki¹, Shuhei Sakata², Ryoichi Nakada³, Teruhiko Kashiwabara³, Takeshi Ohno⁴, Yoshio Takahashi⁴, Harilaos Tsikos⁵, Tsuyoshi Komiya¹ (1.Graduate School of arts and science, University of Tokyo, 2.Department of Chemistry, Gakushuin University, 3.Japan Agency for Marine-Earth Science and Technology, 4.Graduate School of Science, the University of Tokyo, 5.Department of Geology, Rhodes University)

*Momoko Miyata¹, Yoshio Takahashi¹, Yusuke Watanabe¹, Seishiro Furuyama², Akihiro Kano¹ (1.Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, 2.Geological Survey of Japan)

*Shogo Aoki¹, Shuhei Sakata², Ryoichi Nakada³, Teruhiko Kashiwabara³, Takeshi Ohno⁴, Yoshio Takahashi⁴, Harilaos Tsikos⁵, Tsuyoshi Komiya¹ (1.Graduate School of arts and science, University of Tokyo, 2.Department of Chemistry, Gakushuin University, 3.Japan Agency for Marine-Earth Science and Technology, 4.Graduate School of Science, the University of Tokyo, 5.Department of Geology, Rhodes University)

*Momoko Miyata¹, Yoshio Takahashi¹, Yusuke Watanabe¹, Seishiro Furuyama², Akihiro Kano¹ (1.Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, 2.Geological Survey of Japan)

*Satoshi Takahashi¹, Ryoichi Nakada², Yusuke Watanabe¹, Yoshio Takahashi¹ (1.Department of Earth and Planetary Science, University of Tokyo, 2.Kochi Institute for Core Sample Research, Japan Agency for Marine-Earth Science and Technology (JAMSTEC))

*Hiroko Makita^1,2, Sakiko Kikuchi¹, Satoshi Mitsunobu³, Emiko Tanaka^2,1, Yoshihiro Takaki¹, Toshiro Yamanaka⁴, Tomohiro Toki⁵, Takuroh Noguchi⁶, Kentaro Nakamura⁷, Mariko Abe¹, Miho Hirai¹, Masahiro Yamamoto¹, Katsuyuki Uematsu⁸, Junichi Miyazaki¹, Takuro Nunoura¹, Yoshio Takahashi⁷, Ken Takai¹ (1.Japan Agency for Marine-Earth Science and Technology, 2.Kanagawa Institute of Technology, 3.Ehime University, 4.Tokyo University of Marine Science and Technology, 5.University of the Ryukyus, 6.Kochi University, 7.The University of Tokyo, 8.Marine Works Japan Ltd)

*Hiroko Makita^1,2, Sakiko Kikuchi¹, Satoshi Mitsunobu³, Emiko Tanaka^2,1, Yoshihiro Takaki¹, Toshiro Yamanaka⁴, Tomohiro Toki⁵, Takuroh Noguchi⁶, Kentaro Nakamura⁷, Mariko Abe¹, Miho Hirai¹, Masahiro Yamamoto¹, Katsuyuki Uematsu⁸, Junichi Miyazaki¹, Takuro Nunoura¹, Yoshio Takahashi⁷, Ken Takai¹ (1.Japan Agency for Marine-Earth Science and Technology, 2.Kanagawa Institute of Technology, 3.Ehime University, 4.Tokyo University of Marine Science and Technology, 5.University of the Ryukyus, 6.Kochi University, 7.The University of Tokyo, 8.Marine Works Japan Ltd)

*Yoshio Takahashi¹ (1.Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo)

Soichiro Uesugi¹, *Yoshio Takahashi¹, Masato Tanaka¹, Teruhiko Kashiwabara², Akira Usui³ (1.Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, 2.JAMSTEC, 3.Kochi University)

*Lisa Ito¹, Shohei Hattori², Naohiro Yoshida², Yoshio Takahashi¹ (1.Department of Earth and Planetary Science, School of Science, The University of Tokyo, 2.Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology)

*Maki Asano¹, Yasuo Takeichi², Hiroki Suga³, Kanta Ono², Yoshio Takahashi⁴, Rota Wagai⁵ (1.University of Tsukuba, 2.KEK, 3.Hiroshima University, 4.The University of Tokyo, 5.NIAES)

*Uramoto Go-Ichiro^1,2, Yuki Morono¹, Naotaka Tomioka¹, Shigeyuki Wakaki¹, Rota Wagai³, Kentaro Uesugi⁴, Akihisa Takeuchi⁴, Masato Hoshino⁴, Yoshio Suzuki^4,5, Satoshi Mitsunobu⁶, Hiroki Suga⁷, Chihiro Miyamoto⁵, Yoshio Takahashi⁵, Fumio Inagaki¹ (1.Japan Agency for Marine-Earth Science and Technology, 2.Kochi University, 3.National Agriculture and Food Research Organization, 4.Japan Synchrotron Radiation Research Institute, 5.University of Tokyo, 6.Ehime University, 7.Hiroshima University)

*Uramoto Go-Ichiro^1,2, Yuki Morono¹, Naotaka Tomioka¹, Shigeyuki Wakaki¹, Rota Wagai³, Kentaro Uesugi⁴, Akihisa Takeuchi⁴, Masato Hoshino⁴, Yoshio Suzuki^4,5, Satoshi Mitsunobu⁶, Hiroki Suga⁷, Chihiro Miyamoto⁵, Yoshio Takahashi⁵, Fumio Inagaki¹ (1.Japan Agency for Marine-Earth Science and Technology, 2.Kochi University, 3.National Agriculture and Food Research Organization, 4.Japan Synchrotron Radiation Research Institute, 5.University of Tokyo, 6.Ehime University, 7.Hiroshima University)

*Natsumi Noda¹, Shoko Imamura¹, Yasuhito Sekine¹, Soichiro Uesugi¹, Minako Kurisu¹, Chihiro Miyamoto¹, Haruhisa Tabata¹, Yoshio Takahashi¹, Takashi Murakami¹ (1. Department of Earth and Planetary Science, The University of Tokyo)

*Yuichi Kurihara¹, Hikaru Miura¹, Toshihiro Kogure¹, Noriko Yamaguchi², Shogo Higaki³, Aya Sakaguchi⁴, Yuichi Onda⁵, Masayoshi Yamamoto⁶, Kazuya Tanaka⁷, Jota Kanda⁸, Takashi Ishimaru⁸, Yoshio Takahashi¹ (1.Department of Earth and Planetary Science, Graduate School of Science, The university of Tokyo, 2.National Institute for Agro-Environmental Sciences, 3.Radioisotope Center, The university of Tokyo, 4.Faculty of Pure and Applied Science, University of Tsukuba, 5.Center for Research in Isotopes and Environmental Dynamics, University of Tsukuba, 6.Low Level Radioactivity Laboratory, Kanazawa University, 7.Japan Atomic Energy Agency, 8.Tokyo University of Marine Science and Technology)

*Hikaru Miura¹, Yuichi Kurihara¹, Keisuke Taniguchi², Aya Sakaguchi³, Shogo Higaki⁴, Yuichi Onda³, Yoshio Takahashi¹ (1.Department of science, Graduate school of The university of Tokyo , 2.Center for Environmental Creation Fukushima Prefecture, 3.Center for Research in Isotopes and Environmental Dynamics, University of Tsukuba, 4.Isotope science center, The university of Tokyo)

*Yuichi Kurihara¹, Hikaru Miura¹, Toshihiro Kogure¹, Noriko Yamaguchi², Shogo Higaki³, Aya Sakaguchi⁴, Yuichi Onda⁵, Masayoshi Yamamoto⁶, Kazuya Tanaka⁷, Jota Kanda⁸, Takashi Ishimaru⁸, Yoshio Takahashi¹ (1.Department of Earth and Planetary Science, Graduate School of Science, The university of Tokyo, 2.National Institute for Agro-Environmental Sciences, 3.Radioisotope Center, The university of Tokyo, 4.Faculty of Pure and Applied Science, University of Tsukuba, 5.Center for Research in Isotopes and Environmental Dynamics, University of Tsukuba, 6.Low Level Radioactivity Laboratory, Kanazawa University, 7.Japan Atomic Energy Agency, 8.Tokyo University of Marine Science and Technology)