*Hayato Ueda¹, Ryusei KOTA¹, Mitsuhiko Ishino¹, Minato Munakata¹, Komei Nara¹, Yuta Akutsu¹, Yusuke Sugiyama¹, Nozomu Suzuki¹ (1.Department of Geology, Niigata University)

*Kenichiro Tani¹, Osamu Ishizuka², Kyoko Okino³, Hayato Ueda⁴ (1.Department of Geology and Paleontology, National Museum of Nature and Science, 2.Geological Survey of Japan/AIST, 3.Atmosphere and Ocean Research Institute, The University of Tokyo, 4.Faculty of Science, Niigata University)

*Michiru Inoue¹, Hayato Ueda¹ (1.Department of Geology, Niigata University)

*Yuki Furukawa¹, Hayato Ueda¹, Megumi Ozawa² (1.Niigata University, 2.Asano Taiseikiso Engineering Corporation)

*Komei Nara¹, Yuta Akutsu², Hayato Ueda¹ (1.Niigata University, 2.Kowa co.Ltd)

*Nozomu Suzuki¹, yusuke Sugiyama, Hayato Ueda¹ (1.Niigata University)

*Moeko Kanno¹, Tsuyoshi Toyoshima², Hayato Ueda² (1.Graduate school of Science and Technology, Environmental Science and Technology,Earth science, 2.Niigata University, Faculty of Science,Department Geology)