*Hirokuni Oda¹, Chisato Anai², Naoto Fukuyo¹, Takashi Ito³, Naotomo Kaneko¹ (1.Geological Survey of Japan, AIST, 2.Kyoto University, 3.Ibaraki University)

*Haruki Honda¹, Yoichi Usui¹, Junichiro Ohta², Honami Sato³ (1.Kanazawa University, 2.The University of Tokyo, 3.Kyushu University)

*Hyeon-Seon Ahn^1,2, Sujeong Park¹, Hyun Ho Yoon¹, Jaesoo Lim^1,2, Yuhji Yamamoto³ (1.Korea Institute of Geoscience and Mineral Resources (KIGAM), 2.University of Science and Technology (UST), 3.Marine Core Research Institute (MaCRI), Kochi University)

*Yuki Haneda¹, Megumi Saito-Kato², Tatsuya Hayashi³, William Krebs (1.Geological Survey of Japan, AIST, 2.National Museum of Nature and Science, Tokyo, 3.Kyusyu University)

*Hiroki Matsumoto¹, Chisato Anai², Hitoshi Hasegawa¹, Kanade Izumi¹, Minoru Ikehara¹, Aki Sakuma³, Ryusei Kuma⁴, Yuhji Yamamoto¹ (1.Kochi University, 2.Kyuto University, 3.University of Tokyo, 4.Miyazaki University)

*Yuto Koremura¹, Yuhji Yamamoto¹, Hiroyuki Hoshi², Chie Kato³, Jowita Kumek⁴, Justin Tonti-Filippini⁵, Elisa Piispa⁴ (1.Kochi University , 2.Aichi University of Education, 3.Kyushu University, 4.University of Iceland, 5.University of Oslo)

*Akihiro Tanimoto¹, Makoto Okada¹ (1.Ibaraki University)

*Nobutatsu Mochizuki¹, Ryuichiro Hidaka², Chie Kato³, Tesfaye Kidane⁴, Ameha Atnafu Muluneh^5,6, Naoto Ishikawa⁷ (1.Department of Earth and Environmental Science, Faculty of Advanced Science and Technology, Kumamoto University, 2.Department of Earth and Environmental Science, Graduate School of Science and Technology, Kumamoto University, 3.Kyushu University, 4.Wayne State University, 5.Addis Ababa University, 6.GFZ German Research Centre for Geosciences, 7.University of Toyama)

*Ryota Imaki¹, Masahiko Sato¹ (1.Tokyo university of science)

*Tohru Watanabe¹, Kazuo Kawasaki¹, Katsuyoshi Michibayashi² (1.Faculty of Sustainable Design, University of Toyama, 2.Department of Earth and Planetary Sciences, Nagoya University)

*Chisato Anai¹, Hirokuni Oda², Noriko Hasebe³, Hitoshi Hasegawa⁴ (1.Aso Volcanological Laboratory, Kyoto University, 2.Geological Survey of Japan, 3.Institute of Nature and Environmental Technology, Kanazawa University, 4.Faculty of Science and Technology, Kochi University)

*Noriko Kawamura¹, Tomo Aoki² (1.Japan Coast Guard Academy, 2.Japan Coast Guard)

*Tetsuro Sato¹, Masaki Yamada², Masahiko Sato³, Naruya Asaka², Yuhji Yamamoto¹, Hironori Hidaka⁴, Kasumi Sakurai^4,5, Kotaro Kawai⁴, Toyohiro Kato⁴, Yusuke Kurosaki⁴, Atsuko Kobayashi^1,4, Joseph Lynn Kirschvink^1,6 (1.Kochi University, 2.Shinshu University, 3.Tokyo University of Science, 4.Institute of Science Tokyo, 5.KTH Royal Institute of Technology, 6.California Institute of Technology)

*Tadahiro Hatakeyama¹, Evdokia Tema^2,3, Enzo Ferrara⁴, Patrizia Davit⁵, George S. Polymeris⁶, Naoko Matsumoto⁷, Jun Mitsumoto⁸ (1.Institute of Frontier Science and Technology, Okayama University of Science, 2.Dipartimento di Scienze della Terra, Università degli Studi di Torino, Italy , 3.ALP-CIMaN Alpine Laboratory of Palaeomagnetism, Italy , 4. Istituto Nazionale di Ricerca Metrologica, Torino, Italy, 5.Dipartimento di Chimica, Università degli Studi di Torino, Italy, 6.Institute of Nanoscience and Nanotechnology, NCSR “Demokritos”, Greece, 7.Faculty of Humanities and Social Sciences, Okayama University, Japan, 8.Research Institute for the Dynamics of Civilizations, Okayama University, Japan)

*Jun Shibuya¹, Tatsuo Kanamaru², Kuniyuki Furukawa³, Kenichiro Tani⁴, Yuhji Yamamoto⁵ (1.Graduate School of Comprehensive Basic Sciences, Nihon University, 2.Department of Earth and Environmental Sciences, College of Humanities & Sciences, Nihon University, 3.Faculty of Business Administration, Aichi University, 4.Department of Geology and Paleontology, National Museum of Nature and Science, 5.Marine Core Research Institute, Kochi University)

*Yuga Fujimoto¹, Naoto Ishikawa² (1.Earth, Life, Environmental Science Program, Graduate School of Science and Engineering, University of Toyama , 2. Department of Earth System Science, Faculty of Sustainable Design, University of Toyama )

*Yutaka Yoshimura¹, Hyeon-Seon Ahn^2,3, Chie Kato^4,7, Yuhji Yamamoto⁵, Chisato Anai⁶, Yoshinori Tajiri^4,7, Tadahiro Hatakeyama⁸, Masao OHNO^4,7 (1.National Institute of Polar Research, 2.Korea Institute of Geoscience and Mineral Resources, 3.University of Science and Technology, 4.Faculty of Social and Cultural Studies, Kyushu University, 5.Marine Core Research Institute, Kochi University, 6.Aso Volcanological Laboratory, Kyoto University, 7.Advanced Asian Archaeological Research Center, Kyushu University, 8.Institute of Frontier Science and Technology, Okayama University of Science)

*Takumi Kera¹, Hiroaki Matsui, Masaki Matsushima², Yuto Katoh¹ (1.Department of Geophysics, Graduate School of Science, Tohoku University, 2.Institue of Science Tokyo: Tokyo, JP)

*Hao Luo¹ (1.Institute of Geology and Geophysics, Chinese Academy of Sciences)