*Daisuke Kuwano¹, Yoshimi Kubota², Kanako Mantoku², Koji Kameo³ (1.Division of Earth and Environmental Sciences, Graduate School of Science and Engineering, Chiba University, 2.National Museum of Nature and Science, 3.Department of Earth Sciences, faculty of Science, Chiba University)

*Daisuke Kuwano¹, Yoshimi Kubota², Kanako Mantoku², Koji Kameo³ (1.Division of Earth and Environmental Sciences, Graduate School of Science and Engineering, Chiba University, 2.National Museum of Nature and Science, 3.Department of Earth Sciences, faculty of Science, Chiba University)

*Yoshimi Kubota¹, Steven Clemens², Kyung-Eun Lee³, Ann Holbourn⁴, Etsuko Wakisaka⁵, Keiji Horikawa⁵, Ryuji Tada⁶, Katsunori Kimoto⁷ (1.National Museum of Nature and Science, 2.Brown University, 3.Korea Maritime and Ocean University, 4.Christian-Albrechts-University, 5.University of Toyama, 6.The University of Tokyo, 7.Japan Agency for Marine-Earth Science and Technology)

*Yuki Haneda¹, Nanako Yokokawa¹, Makoto Okada¹, Hiroki Hayashi², Yoshimi Kubota³, Yusuke Suganuma⁴ (1.College of Science, Ibaraki University, 2.Interdisciplinary Factulty of Science and Engineering, Shimane University, 3.National Museum of Nature and Science, 4.National Institute of Polar Research)

*Fumito Mizuno¹, Takuya Sagawa², Keisuke Mukaida³, Yoshimi Kubota⁴, Toshitsugu Yamazaki⁵, Junichiro Kuroda⁵ (1.Graduate School of Natural Science and Technology. Kanazawa University, 2.Institute of Science & Engineering. Kanazawa University, 3.Collage of Science & Engineering. Kanazawa University, 4.National Museum of Nature & Science, 5.Atmosphere and Ocean Research Institute. The University of Tokyo)