*Koji SETO¹, Hiroyuki TAKATA², Kota KATSUKI³, Takeshi SONODA⁴ (1.Research Center for Coastal Lagoon Environments, Shimane University, 2.Pusan National University, 3.Korea Institute of Geoscience and Mineral Resources, 4.Tokyo University of Agriculture)

*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)