*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)