*IJIN KANG¹, Kaoru Kashima², Koji Seto³, Yukinori Tani⁴, Takahiro Watanabe⁵, Toshio Nakamura⁶, Satoshi Imura⁷, Genki I. Matsumoto⁸ (1.Department of Earth and Planetary Sciences, Graduate School of Sciences, Kyushu University, 2.Department of Earth and Planetary Sciences, Kyushu University, 3.Estuary Research Center, Shimane University, 4.Institute of Environmental Sciences, University of Shizuoka, 5.Japan Atomic Energy Agency, 6.Center for Chronological Research, Nagoya University, 7.National Institute of Polar Research, 8.School of Social Information Studies, Osuma Women's University)

*IJIN KANG¹, Kaoru Kashima², Koji Seto³, Yukinori Tani⁴, Takahiro Watanabe⁵, Toshio Nakamura⁶, Satoshi Imura⁷, Genki I. Matsumoto⁸ (1.Department of Earth and Planetary Sciences, Graduate School of Sciences, Kyushu University, 2.Department of Earth and Planetary Sciences, Kyushu University, 3.Estuary Research Center, Shimane University, 4.Institute of Environmental Sciences, University of Shizuoka, 5.Japan Atomic Energy Agency, 6.Center for Chronological Research, Nagoya University, 7.National Institute of Polar Research, 8.School of Social Information Studies, Osuma Women's University)

*Nagayoshi Katsuta¹, Shinya Ochiai², Koji Shichi³, Takuma Murakami⁴, Yukinori Tani⁵ (1.Faculty of Education, Gifu University, 2.Institute of Natural and Environmental Technology, Kanazawa University, 3.Department of Forest Site Environment, Forestry and Forest Products Research Institute, 4.Graduate School of Environmental Studies, Nagoya University, 5.Department of Environmental and Life Sciences, University of Shizuoka)