*Hiroto Kajita^1,2,3,4,5, Yuta Isaji², Rintaro Kato³, Yoko Nishikura⁴, Masafumi Murayama⁶, Naohiko Ohkouchi², Shouye Yang⁷, Hongbo Zheng⁸, Ke Wang^8,3, Toshimichi Nakanishi⁹, Takenori Sasaki³, Ayumi Maeda^3,4,5, Atsushi Suzuki⁵, Hodaka Kawahata^3,4,5 (1.National Institute for Polar Research, 2.Biogeochemistry Research Center, Japan Agency for Marine-Earth Science and Technology, 3.Department of Earth and Planetary Science, Graduate School of Science, the University of Tokyo, 4.Atmosphere and Ocean Research Institute, the University of Tokyo, 5.Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology, 6.Center for Advanced Marine Core Research, Kochi University, 7.State Key Laboratory of Marine Geology, Tongji University, 8.Research Center for Earth System Science, Yunnan University, 9.Museum of Natural and Environmental History)

*Chisato Yoshikawa¹, Masahito Shigemitsu¹, Akitomo Yamamoto¹, Akira Oka², Naohiko Ohkouchi¹ (1.JAMSTEC, 2.AORI)

*Takumi Ishimura¹, Daiki Kurosaki¹, Satoshi Suyama², Taiki Fuji², Toyoho Ishimura³, Nanako O. Ogawa⁴, Chisato Yoshikawa⁴, Yota Harada⁴, Naohiko Ohkouchi⁴, Shin-ichi Ito¹ (1.Atmosphere and Ocean Research Institute, The University of Tokyo, 2.Japan Fisheries Research and Education Agency, 3.Kyoto University, 4.Japan Agency for Marine-Earth Science and Technology)

*Kai Nils Nitzsche¹, Toshihiro Yoshimura¹, Naoto F Ishikawa¹, Nanako O Ogawa¹, Katsuhiko Suzuki², Naohiko Ohkouchi¹ (1.Biogeochemistry Research Center, Japan Agency for Marine-Earth Science and Technology, 2.Submarine Resources Research Center, Japan Agency for Marine-Earth Science and Technology)

*Atsushi URAI¹, Yoshinori Takano¹, Yohei Matsui¹, Hiroki Iwata², Yosuke Miyairi³, Yusuke Yokoyama^1,3, Yuichi Miyabara², Naohiko Ohkouchi¹, Ho-Dong Park² (1.Japan Agency for Marine-Earth Science and Technology, 2.Shinshu Univ., 3.Univ. Tokyo)

*Bethany C. Behrens^1,2, Yusuke Yokoyama^1,2,3, Yosuke Miyairi¹, Alexandra L Post⁴, Leanne K Armand^5,10, Stephen P Obrochta⁶, Naohiko Ohkouchi⁷, Hisami Suga⁷, Takato Takemura⁸, Philip E O'Brien⁹ (1.Atmosphere and Ocean Research Institute, The University of Tokyo, 2.Graduate Program on Environmental Science, The University of Tokyo, 3.Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, 4.Geoscience Australia, Australia, 5.Research School of Earth Sciences, Australian National University, 6.Akita University Graduate School of International Resource Science, Japan, 7.Japan Agency for Marine-Earth Science and Technology, Japan, 8.Geomechanics Lab, College of Humanities and Sciences, Nihon University, 9.Department of Environmental Sciences, Macquarie University, Australia, 10.Deceased, Leanne Kay Armand on 4 January 2022)

*Adam David Sproson¹, Toshihiro Yoshimura¹, Takahiro AZE², Shigeyuki Wakaki³, Tsuyoshi Ishikawa³, Yusuke Yokoyama^1,2, Naohiko Ohkouchi¹ (1.Biogeochemistry Research Center, Japan Agency for Marine-Earth Science and Technology, 2.Atmosphere and Ocean Research Institute, The University of Tokyo, 3.Kochi Institute for Core Sample Research, Japan Agency for Marine-Earth Science and Technology)