*Yoshimi Kubota¹, Katsunori Kimoto², Ryuji Tada³ (1.National Museum of Nature and Science, 2.Japan Agency for Marine-Earth Science and Technology, 3.University of Tokyo)

*Koji Kameo¹, Yuki Haneda², Yoshimi Kubota³, Yusuke Suganuma⁴, Makoto Okada² (1.Department of Earth Sciences, Faculty of Science, Chiba University, 2.Graduate School of Science and Engineering, Ibaraki University, 3.National Museum of Nature and Science, 4.National institute of Polar Research)

*Koji Kameo¹, Yuki Haneda², Yoshimi Kubota³, Yusuke Suganuma⁴, Makoto Okada² (1.Department of Earth Sciences, Faculty of Science, Chiba University, 2.Graduate School of Science and Engineering, Ibaraki University, 3.National Museum of Nature and Science, 4.National institute of Polar Research)

*Yoshimi Kubota¹, Etsuko Wakisaka², Steven Clemens³, Ann Holbourn⁴, Kyung Eun Lee⁵, Martin Ziegler⁶, Keiji Horikawa² (1.National Museum of Nature and Science, 2.University of Toyama, 3.Brown University, 4.Christian-Albrechts University, 5.Korea Maritime and Ocean University, 6.Utrecht University)

*Ryuji Tada¹, Ke WANG¹, Keita Saito¹, Hongbo Zheng⁶, Yoshiaki Suzuki¹, Saiko Sugisaki², Kana Nagashima⁵, Masao Uchida⁷, Tomohisa Irino⁴, Takeshi Nakagawa⁸, Yoshimi Kubota³, Katsunori Kimoto⁵, Takuya Itaki² (1.Department of Earth and Planetary Science, Graduate School of Science, The Univeristy of Tokyo, 2.Geological Survey of Japan, AIST, 3.National Museum of Nature and Science, 4.Hokkaido University, 5.JAMSTEC, 6.Yunnan University, 7.National Institute for Environmental Studies, 8.Ritsumeikan University)

*Katsunori Kimoto¹, Yoshimi Kubota², Osamu Sasaki³, Tomohiro Iwashita⁴, Yuriko Nakamura¹ (1.Japan Agency for Marine-Earth Science and Technology, 2.National Museum of Nature and Science , 3.The Tohoku University Museum, 4.White rabbit)

*Katsunori Kimoto¹, Yoshimi Kubota², Osamu Sasaki³, Tomohiro Iwashita⁴, Yuriko Nakamura¹ (1.Japan Agency for Marine-Earth Science and Technology, 2.National Museum of Nature and Science , 3.The Tohoku University Museum, 4.White rabbit)

*Yoshimi Kubota¹, Yuki Haneda², Yusuke Suganuma³, Makoto Okada², Takuya Itaki⁴, Koji Kameo⁵, Hiroki Hayashi⁶ (1.National Museum of Nature and Science, 2.Ibaraki University, 3.National Institute of Polar Research, 4.Geological Survey of Japan, AIST, 5.Chiba University, 6.Shimane University)

*Yuki Haneda¹, Yusuke Suganuma², Yoshimi Kubota³, Makoto Okada⁴, Daisuke Hasegawa⁴, Yosuke Hiraoka⁴, Hiroomi Nakazato⁵ (1.Graduate School of Science and Engineering, Ibaraki University, 2.National Institute of Polar Reseach, 3.National Museum of Nature and Science, 4.Department of Earth Sciences, Faculty of Science, Ibaraki University, 5.National Agriculture and Food Research Organization)