*Michinobu KUWAE¹, Mako KIYOTO¹, Takuya SAGAWA², Masanobu YAMAMOTO³, Yugo NAKAMURA⁴, Yukinori TANI⁵, Narumi TSUGEKI⁶, Hiroji OHNISHI⁷, Minoru IKEHARA⁸ (1.Center for Marine Environmental Studies, 2.Faculty of Sciences, Kyushu University, 3.Faculty of Environmental Earth Science, Hokkaido University, 4.Institute of Seismology and Volcanology, Faculty of Science, Hokkaido University, 5.Graduate Division of Nutritional and Environmental Sciences, University of Shizuoka, 6.Matsuyama University The Faculty of Law, 7.Graduate School of Fisheries Sciences, Hokkaido University, 8.Center for Advanced Marine Core Research , Kochi Univ)

*Ijin KANG¹, Kaoru KASHIMA², Koji SETO³, Keisuke ITO⁴, Eisuke HONDA⁴, Yukinori TANI⁵, Takahiro WATANABE⁶, Toshio NAKAMURA⁷, Satoshi IMURA⁸, Genki I. MATSUMOTO⁹ (1.Department of Earth and Planetary Sciences, Graduate School of Sciences, Kyushu University, 2.Department of Earth and Planetary Sciences, Graduate School of Sciences, Kyushu University, 3.Research Center for Coastal Lagoon Environments, Shimane University, 4.Graduate School of Studies in Human Culture, Otsuma Women's University,, 5.Institute of Environmental Sciences, University of Shizuoka, 6.Graduate School of Environmental Studies, Tohoku University, 7.Center for Chronological Research, Nagoya University, 8.National Institute of Polar Research, 9.School of Social Information Studies, Otsuma Women's University)

*Ijin KANG¹, Kaoru KASHIMA², Koji SETO³, Keisuke ITO⁴, Eisuke HONDA⁴, Yukinori TANI⁵, Takahiro WATANABE⁶, Toshio NAKAMURA⁷, Satoshi IMURA⁸, Genki I. MATSUMOTO⁹ (1.Department of Earth and Planetary Sciences, Graduate School of Sciences, Kyushu University, 2.Department of Earth and Planetary Sciences, Graduate School of Sciences, Kyushu University, 3.Research Center for Coastal Lagoon Environments, Shimane University, 4.Graduate School of Studies in Human Culture, Otsuma Women's University,, 5.Institute of Environmental Sciences, University of Shizuoka, 6.Graduate School of Environmental Studies, Tohoku University, 7.Center for Chronological Research, Nagoya University, 8.National Institute of Polar Research, 9.School of Social Information Studies, Otsuma Women's University)