*Satoshi Takahashi¹, Satoshi Yamakita², Shun Muto³, Satoru Kojima⁴, Kunio Kaiho⁵, Shin-ichi Yamasaki⁶, Noriyoshi Tsuchiya⁷, Yijun Xiong⁸, Simon W. Poulton⁸, Paul B. Wignall⁸, Hironao Matsumoto⁹, TAKAAKI ITAI¹¹, Megumu Fujibayashi¹⁰ (1.Department of Earth and Environmental Sciences Graduate School of Environmental Studies Nagoya University, 2.Faculty of Education, University of Miyazaki, 3.National Institute of Advanced Science and Technology, 4.Faculty of Engineering, Gifu University, 5.Department of Earth Science, Tohoku University, 6.Graduate School of Environmental Studies, Tohoku University, 7.National Institute of Technology, Hachinohe College, 8.School of Earth and Environment, University of Leeds, 9.Institute of Life and Environmental Sciences, University of Tsukuba, 10.Faculty of Engineering, Kyushu University, 11.Department of Earth and Planetary Science, University of Tokyo)

*Jumpei Yoshioka¹, Junichiro Kuroda², TAKAAKI ITAI³, Kenji Matsuzaki² (1.National Institute of Advanced Industrial Science and Technology, 2.Atmosphere and Ocean Research Institute, the University of Tokyo, 3.Department of Earth and Planetary Science, the University of Tokyo)

*Aki Sakuma¹, Taiga Okumura¹, Takaaki Itai¹ (1.Department of Earth and Planetary Science, School of Science, the University of Tokyo)