*Shunichi Kinoshita¹, Azumi Kuroyanagi², Hiroshi Nishi², Osamu Sasaki², Kazuhiko Fujita³, Atsushi Suzuki⁴, Hodaka Kawahata⁵ (1.Graduate School of Science, Tohoku University, 2.The Tohoku University Museum, The Center for Academic Resources and Archives, Tohoku Univerity, 3.Department of Physics and Earth Sciences, Faculty of Science and Tropical Biosphere Research Center, University of the Ryukyus, 4.Geological Survey of Japan National Institute of Advanced Industrial Science and Technology, 5.Atmosphere and Ocean Research Institute, the University of Tokyo)

*Shunichi Kinoshita¹, Azumi Kuroyanagi², Hiroshi Nishi², Osamu Sasaki², Kazuhiko Fujita³, Atsushi Suzuki⁴, Hodaka Kawahata⁵ (1.Graduate School of Science, Tohoku University, 2.The Tohoku University Museum, The Center for Academic Resources and Archives, Tohoku Univerity, 3.Department of Physics and Earth Sciences, Faculty of Science and Tropical Biosphere Research Center, University of the Ryukyus, 4.Geological Survey of Japan National Institute of Advanced Industrial Science and Technology, 5.Atmosphere and Ocean Research Institute, the University of Tokyo)