*Hongyang Xu^1,2, Hiroko Miyahara², Kazuho Horiuchi³, Hiroyuki Matsuzaki⁴, Hailong Sun⁵, Weijun Luo⁵, Xiangmin Zheng¹, Yusuke Suganuma^6,7, Shijie Wang⁵, Limin Zhou¹ (1.East China Normal University, 2.Musashino Art University, 3.Hirosaki University, 4.University of Tokyo, 5.Chinese Academy of Sciences, 6.National Institute of Polar Research, 7.The Graduate University for Advanced Studies (SOKENDAI))

*Hongyang Xu^1,2, Hiroko Miyahara², Kazuho Horiuchi³, Hiroyuki Matsuzaki⁴, Hailong Sun⁵, Weijun Luo⁵, Xiangmin Zheng¹, Yusuke Suganuma^6,7, Shijie Wang⁵, Limin Zhou¹ (1.East China Normal University, 2.Musashino Art University, 3.Hirosaki University, 4.University of Tokyo, 5.Chinese Academy of Sciences, 6.National Institute of Polar Research, 7.The Graduate University for Advanced Studies (SOKENDAI))

*Hongyang Xu^1,2, Hiroko Miyahara², Kazuho Horiuchi³, Hiroyuki Matsuzaki⁴, Hailong Sun⁵, Weijun Luo⁵, Xiangmin Zheng¹, Yusuke Suganuma^6,7, Shijie Wang⁵, Limin Zhou¹ (1.East China Normal University, 2.Musashino Art University, 3.Hirosaki University, 4.University of Tokyo, 5.Chinese Academy of Sciences, 6.National Institute of Polar Research, 7.The Graduate University for Advanced Studies (SOKENDAI))

*Hongyang Xu^1,2, Hiroko Miyahara², Kazuho Horiuchi³, Hiroyuki Matsuzaki⁴, Hailong Sun⁵, Weijun Luo⁵, Xiangmin Zheng¹, Yusuke Suganuma^6,7, Shijie Wang⁵, Limin Zhou¹ (1.East China Normal University, 2.Musashino Art University, 3.Hirosaki University, 4.University of Tokyo, 5.Chinese Academy of Sciences, 6.National Institute of Polar Research, 7.The Graduate University for Advanced Studies (SOKENDAI))

*Yuki Matsushi¹, Hiroshi YAGI², Hiroyuki Matsuzaki³ (1.Disaster Prevention Research Institute, Kyoto University, 2.Department of Education, Art and Science, Yamagata University, 3.icro Analysis Laboratory, Tandem Accelerator, The University of Tokyo)

*Takuma Watakabe¹, Yuki Matsushi², Hiroyuki Matsuzaki³ (1.Graduate School of Science, Kyoto University, 2.Disaster Prevention Research Institute, Kyoto University, 3.The University Museum, The University of Tokyo)

*Yusuke Yokoyama¹, Tezer M Esat⁹, William G Thompson¹⁰, Alexandar L Thomas¹¹, Jody W Webster², Yosuke Miyairi¹, Chikako Sawada¹, Takahiro AZE¹, Hiroyuki Matsuzaki¹, Jun'ichi Okuno³, Stewart Fallon⁹, Juan-Carlos Braga¹², Marc Humblet⁴, Yasufumi Iryu⁵, Donald C Potts¹³, Kazuhiko Fujita⁶, Atsushi Suzuki⁷, Hironobu Kan⁸ (1.Atmosphere and Ocean Research Institute, University of Tokyo, 2.University of Sydney, Australia, 3.National Institute of Polar Research, 4.Nagoya University, 5.Tohoku University, 6.University of the Ryukyus, 7.The Geological Survey of Japan, AIST, 8.Kyushu University, 9.Research School of Earth Sciences, The Australian National University, Australia, 10.Woods Hole Oceanographic Institute, USA, 11.University of Edinburgh, UK, 12.Universidad de Granada, Spain, 13.University of California Santa Cruise, USA)

*Yusuke Yokoyama^1,2,3, Masako Yamane⁷, Atsunori Nakamura⁴, Yosuke Miyairi¹, Kazuho Horiuchi⁵, Takahiro AZE¹, Hiroyuki Matsuzaki⁶, Yoshiki Shirahama⁴, Yuka Ando¹ (1.Atmosphere and Ocean Research Institute, University of Tokyo, 2.Department of Earth and Planetary Science, University of Tokyo, 3.Department of Biogeochemistry, Japan Agency for Marine-Earth Science and Technology, 4.Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology, 5.Graduate School of Science and Technology, Hirosaki University, 6.Micro Analysis Laboratory, Tandem Accelerator, University of Tokyo, 7.Division for Chronological Research, Institute for Space–Earth, Environmental Research, Nagoya University)

*Yusuke Yokoyama^1,2,3, Masako Yamane⁷, Atsunori Nakamura⁴, Yosuke Miyairi¹, Kazuho Horiuchi⁵, Takahiro AZE¹, Hiroyuki Matsuzaki⁶, Yoshiki Shirahama⁴, Yuka Ando¹ (1.Atmosphere and Ocean Research Institute, University of Tokyo, 2.Department of Earth and Planetary Science, University of Tokyo, 3.Department of Biogeochemistry, Japan Agency for Marine-Earth Science and Technology, 4.Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology, 5.Graduate School of Science and Technology, Hirosaki University, 6.Micro Analysis Laboratory, Tandem Accelerator, University of Tokyo, 7.Division for Chronological Research, Institute for Space–Earth, Environmental Research, Nagoya University)