*Haruki Sato¹, Shogo Aoki¹, Yoshiaki Kon² (1. Graduate School of International Resource Science, Akita University, 2. Geological Survey of Japan, AIST)

*Ryoma Torii^1,2, Asuka Yamaguchi^1,2 (1. Atmosphere and Ocean Research Institute, The University of Tokyo, 2. Department of Earth and Planetary Science, The University of Tokyo)

*Reina Onozawa¹, Kenta Kobayashi¹ (1. Niigata University)

*Akira Ono

*Ryunosuke Funahashi¹, Norihiro Wada¹, Motoo Ito², Satoshi Tonai¹, Masafumi MURAYAMA³ (1. Faculty of Science and Technology, Kochi University, 2. Kochi Institute for Core Sample Research JAMSTEC, 3. Faculty of Agriculture and Marine Science, Kochi University)

*Aoto Sato¹, Makoto Okada¹, Minoru Ikehara² (1. Ibaraki University, 2. Kochi University)

*Kentaro Ushimaru¹ (1. Geological Survey of Japan, National Institute of Advanced Science and Technology)

*Kato Satomi¹, Shimada Tetsuya, Inoue Takashi, Niida Kiyoaki (1. Mt. Apoi Geopark promotion council)

*Toshiko Furukawa¹, Shiori Uchiyama¹, Takuya Ishimaru¹, Daima Hasegawa¹ (1. Japan Organization for Metals and Energy Security)

*Shiori Uchiyama¹, Toshiko Furuawa¹, Takuya Ishimaru¹, Daima Hasegawa¹ (1. Japan Organization for Metals and Energy Security)

*Toshiki Haji¹ (1. Geological Survey of Japan, AIST)

*Yuto Yamada¹, Katsushi Sato¹ (1. Kyoto University)

*Katsushi Sato¹ (1. Division of Earth and Planetary Sciences, Graduate School of Science, Kyoto University)

*Zubida Khanum¹, Satoshi Tonai¹ (1. Kochi University, Japan)