*Yujiro Sasaki¹, Kazuhiko Fujita², Fumito Shiraishi¹ (1.Hiroshima University, 2.Ryukyu University)

*Shunichi Kinoshita¹, Azumi Kuroyanagi², Hiroshi Nishi³, Kazuhiko Fujita⁴, Atsushi Suzuki⁵, Hodaka Kawahata⁶ (1.Department of Geology and Paleontology, National Museum of Nature and Science, 2.Tohoku University Museum, The Center for Academic Resources and Archives, Tohoku University, 3.Fukui Prefectural University, 4.Department of Physics and Earth Sciences, University of the Ryukyus, 5.Geological Survey of Japan National Institute of Advanced Industrial Science and Technology (AIST), 6.Atmosphere Ocean Research Institute, the University of Tokyo)

*Yukiko Nagai^1,2, Remi Tsubaki³, Kazuhiko Fujita⁴, Takashi Toyofuku^2,5 (1.National Museum of Nature and Science of Tokyo, 2.JAMSTEC, 3.The University Museum, The University of Tokyo, 4.University of the Ryukyus, 5.TUMSAT)