*Masakazu Fujii^1,2, Yasuhiko Ohara^3,4,5, Yumiko Harigane⁶, Hiroyuki Yamashita⁷, Kyoko Okino⁸ (1.National Institute of Polar Research, 2.SOKENDAI (The Graduate University for Advanced Studies), 3.Hydrographic and Oceanographic Department of Japan, 4.Japan Agency for Marine-Earth Science and Technology, 5.Nagoya University, 6.Geological Survey of Japan, AIST, 7.Kanagawa Prefectural Museum of Natural History, 8.Atmosphere and Ocean Research Institute, The University of Tokyo)

*Kohei Nimura¹, Katsuyoshi Michibayashi^1,2, Yumiko Harigane³, Yasuhiko Ohara^1,2,4 (1.Department of Earth and Planetary Sciences, GSES, Nagoya University, 2.Volcanoes and Earth’s Interior Research Center, IMG, JAMSTEC, 3.Research Institute of Geology and Geoinformation, Geological Survey of Japan, AIST, 4.Hydrographic and Oceanographic Department of Japan)

*So Inoue¹, Katsuyoshi Michibayashi^1,2, Yumiko Harigane³, Yasuhiko Ohara^1,2,4 (1.Department of Earth and Planetary Sciences, GSES, Nagoya University, 2.Volcanoes and Earth's Interior Research, IMG, JAMSTEC, 3.Research Institute of Geology and Geoinformation, Geological Survey of Japan, AIST, 4.Hydrographic and Oceanographic Department of Japan)

Chiori Tamura¹, *Masakazu Fujii^2,3, Yasuhiko Ohara^4,5,6, Seitaro Ono¹, Tomohiro Ito⁷ (1.Atmosphere and Ocean Research Institute, The University of Tokyo, 2.National Institute of Polar Research, 3.SOKENDAI (The Graduate University for Advanced Studies), 4.Hydrographic and Oceanographic Department of Japan, 5.Japan Agency for Marine-Earth Science and Technology, 6.Nagoya University, 7.Hiroshima University)

*Takaaki Moriguchi¹, Kyoko Okino¹, Yasuhiko Ohara^2,3,4, Yumiko Harigane⁵, Matamura Yuki⁶ (1.Atomosphere and Ocean Research Institute, The University of Tokyo, 2.Hydrographic and Oceanographic Department of Japan, 3.Japan Agency for Marine-Earth Science and Technology, 4.Nagoya University, 5.Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology (AIST), 6.Tohoku University)

*Yasuhiko Ohara^1,2,3, Yumiko Harigane⁴, Masakazu Fujii⁵, Norikatsu Akizawa¹¹, Valentin Basch¹⁰, Carlotta Ferrando¹², Ikuo Katayama⁷, Katsuyoshi Michibayashi³, Akito Ogawa^8,2, Aya Takeuchi⁹, Makoto Takeuchi¹¹, Chiori Tamura¹¹, Ko Tomikawa⁷, Shun Watanabe⁹, Hiroyuki Yamashita⁶, KH-23-9 Onboard Students (1.Hydrographic and Oceanographic Department of Japan, 2.Japan Agency for Marine-Earth Science and Technology, 3.Nagoya University, 4.Geological Survey of Japan/AIST, 5.National Institute of Polar Research, 6.Kanagawa Prefectural Museum of Natural History, 7.Hiroshima University, 8.National Museum of Nature and Science, 9.Kindai University, 10.CNR, 11.AORI, 12.University of Genoa)

*Norikatsu Akizawa¹, Ito Kengo², Sota Niki², Takafumi Hirata², Kyoko Okino¹, Yasuhiko Ohara^3,4,5 (1.Atmosphere and Ocean Research Institute, The University of Tokyo, 2.Geochemical Research Center, The University of Tokyo, 3.Hydrographic and Oceanographic Department of Japan, 4.JAMSTEC, 5.Nagoya University)