*Akira Hayashida¹, Kazuhiro Anraku², Masao Ohno³, Michinobu Kuwae⁴, Keiji Takemura⁵ (1.Department of Environmental Systems Science, Doshisha University, 2.Graduate School of Science and Engineering, Doshisha University, 3.Department of Environmental Changes, Kyushu University, 4.Center for Marine Environmental Studies, Ehime University, 5.Institute for Geothermal Sciences, Kyoto University)

*Kazuhiro Anraku¹, Akira Hayashida², Ikuko Kitaba³, Richard A. Staff⁴, Tsuyoshi Haraguchi⁵, Yoshitsugu Shinozuka⁶, Kazuyoshi Yamada⁷, Katsuya Gotanda⁸, Hitoshi Yonenobu⁹ (1.Graduate School of Science and Engineering, Doshisha University, 2.Department of Environmental Systems Science, Doshisha University, 3.Research Centre for Palaleoclimatology, Ritsumeikan University, 4.Research Laboratory for Archaeology and the History of Art, University of Oxford, 5.Department of Geosciences,Graduate School of Science,Osaka City University, 6.Ritsumeikan Global Innovation Research Organization, Ritsumeikan University, 7.Museum of Natural and Environmental history, Shizuoka, 8.Faculty of Polycy Informatics, Chiba University of Commerce, 9.Graduate School of Education, Naruto University of Education)