*Atena SHIZUYA¹, Kunio KAIHO¹, Zhong-qiang CHEN², Paul GORJAN³, Masahiro OBA¹, Satoshi TAKAHASHI⁴ (1.Grad. Sch. of Sci., Tohoku Univ., 2.China University of Geosciences, 3.Washington University in St. Louis, 4.School of Science, The Univ. of Tokyo)

*Kunio KAIHO¹, Atena SHIZUYA¹, Masahiro OBA¹, Kenji YAMADA¹, Minori KIKUCHI¹, Naoto SENBA¹, Zhong-qiang CHEN², Jinnan TONG², Satoshi TAKAHASHI³, Li TIAN², Tsuyoshi KOMIYA³ (1.Tohoku University, 2.China University of Geosciences, 3.University of Tokyo)

*Kunio KAIHO¹, Satoshi TAKAHASHI², Paul GORJAN³, Zhong-qiang CHEN⁴, Jinnan TONG⁴ (1.Tohoku University, 2.University of Tokyo, 3.Washington University, 4.China University of Geosciences)

*Satoshi TAKAHASHI¹, Shin-ichi YAMASAKI², Yasumasa OGAWA³, Kazuhiko KIMURA⁴, Kunio KAIHO⁵, Takeyoshi YOSHIDA⁵, Noriyoshi TSUCHIYA² (1.Department of Earth and Planetary Science, the University of Tokyo, 2.Graduate School of Environmental Studies, Tohoku University, 3.Graduate School of Engineering and Resource Science, Akita University, 4.School of food, Agricultual and Environmental Science, Miyagi University, 5.Department of Earth Science, Graduate School of Science, Tohoku University)

*Shunsuke KUROKAWA¹, Ryuji TADA¹, Satoshi TAKAHASHI¹, Akane MIZUTANI¹, Yui KUBOKI¹ (1.Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo)

*Shunsuke KUROKAWA¹, Ryuji TADA¹, Satoshi TAKAHASHI¹, Akane MIZUTANI¹, Yui KUBOKI¹ (1.Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo)

*Shun MUTO¹, Satoshi TAKAHASHI¹, Satoshi YAMAKITA², Noritoshi SUZUKI³, Yoshiaki AITA⁴ (1.Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, 2.Department of Earth Sciences, Faculty of Education and Culture, University of Miyazaki, 3.Institute of Geology and Paleontology, Graduate school of Science, Tohoku University, 4.Geology Lab, Faculty of Agriculture, Utsunomiya University)

*Satoshi TAKAHASHI¹, Asuka YAMAGUCHI², Satoshi YAMAKITA³, Akane MIZUTANI¹, Jun ISHIDA¹, Shinji YAMAMOTO¹, Masayuki IKEDA⁴, Kazumi OZAKI², Ryuji TADA¹ (1.Department of Earth and Planetary Science, the University of Tokyo, 2.Atmosphere and Ocean Research Institute, the University of Tokyo, 3.Department of Earth Science, Faculty of Culture, Miyazaki University, 4.Department of Earth Sciences, Graduate School of Science and Engineering, Ehime University)

*Satoshi TAKAHASHI¹, Asuka YAMAGUCHI², Satoshi YAMAKITA³, Akane MIZUTANI¹, Jun ISHIDA¹, Shinji YAMAMOTO¹, Masayuki IKEDA⁴, Kazumi OZAKI², Ryuji TADA¹ (1.Department of Earth and Planetary Science, the University of Tokyo, 2.Atmosphere and Ocean Research Institute, the University of Tokyo, 3.Department of Earth Science, Faculty of Culture, Miyazaki University, 4.Department of Earth Sciences, Graduate School of Science and Engineering, Ehime University)

*Asuka YAMAGUCHI¹, Satoshi TAKAHASHI², Satoshi YAMAKITA³ (1.Atmosphere and Ocean Research Institute, the University of Tokyo, 2.Department of Earth and Planetary Science, the University of Tokyo, 3.Faculty of Education and Culture, University of Miyazaki)