*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)

*Yoshiaki Suzuki¹, Ryuji Tada¹, Tomohisa Irino², Kazuyoshi Yamada³, Kana Nagashima⁴, Takeshi Nakagawa⁵, Tsuyoshi Haraguchi⁶, Katsuya Gotanda⁷, SG12/06 Project members (1.The University of Tokyo, 2.Hokkaido University, 3.Museum of Natural and Environmental history, Shizuoka, 4.JAMSTEC, 5.Ritsumeikan University, 6.Osaka City University, 7.Chiba University of Commerce)

*Yoshiaki Suzuki¹, Ryuji Tada¹, Tomohisa Irino², Kazuyoshi Yamada³, Kana Nagashima⁴, Takeshi Nakagawa⁵, Tsuyoshi Haraguchi⁶, Katsuya Gotanda⁷, SG12/06 Project members (1.The University of Tokyo, 2.Hokkaido University, 3.Museum of Natural and Environmental history, Shizuoka, 4.JAMSTEC, 5.Ritsumeikan University, 6.Osaka City University, 7.Chiba University of Commerce)

*Saiko Sugisaki¹, Andrew Murray², Jan-Pieter Buylaert^2,3, Ryuji Tada⁴, Yasufumi Satoguchi⁶, Yoshitaka Nagahashi⁵, Ken Ikehara¹, Tomohisa Irino⁷, Richard W. Murray⁸, Carlos A. Alvarez-Zarikian⁹ (1.Geological Survey of Japan, AIST, 2.Aarhus University, 3.Technical University of Denmark, 4.The University of Tokyo, 5.Fukushima University, 6.Lake Biwa Museum, 7.Hokkaido University, 8.Boston University, 9.Texas A&M University)

*Saiko Sugisaki¹, Andrew Murray², Jan-Pieter Buylaert^2,3, Ryuji Tada⁴, Yasufumi Satoguchi⁶, Yoshitaka Nagahashi⁵, Ken Ikehara¹, Tomohisa Irino⁷, Richard W. Murray⁸, Carlos A. Alvarez-Zarikian⁹ (1.Geological Survey of Japan, AIST, 2.Aarhus University, 3.Technical University of Denmark, 4.The University of Tokyo, 5.Fukushima University, 6.Lake Biwa Museum, 7.Hokkaido University, 8.Boston University, 9.Texas A&M University)

*Toshihiro Tada¹, Ryuji Tada¹, Paul Carling², Wickanet Songtham³, Yu Chang¹, Eiichi Tajika¹ (1.Department of Earth and Planetary Science, 2. Geography & Environment, University of Southampton, 3.Northeastern Research Institute of Petrified Wood and Mineral Resources, Nakhon Ratchasima Rajabhat University)

*Toshihiro Tada¹, Ryuji Tada¹, Paul Carling², Wickanet Songtham³, Yu Chang¹, Eiichi Tajika¹ (1.Department of Earth and Planetary Science, 2. Geography & Environment, University of Southampton, 3.Northeastern Research Institute of Petrified Wood and Mineral Resources, Nakhon Ratchasima Rajabhat University)

*Shunsuke Kurokawa¹, Ryuji Tada¹, Tomohisa Irino², Arisa Seki¹, Masafumi Murayama³ (1.Graduate School of Science,The University of Tokyo, 2.Faculty of Environmental Earth Science, Hokkaido University, 3.Faculty of Agriculture and Marine Science, Kochi University)

*Arisa Seki¹, Ryuji Tada¹, Shunsuke Kurokawa¹, Kazu Mitake¹, Masafumi Murayama² (1.Graduate School of Science,The University of Tokyo, 2.Faculty of Agriculture and Marine Science, Kochi University)

*Satoshi Takahashi¹, Ryuji Tada¹, Arisa Seki¹, Tomohisa Irino² (1.Department of Earth and Planetary Science, University of Tokyo, 2.Faculty of Environmental Earth Science, Hokkaido University)

*Shu Oshio¹, Kosei E. Yamaguchi^1,2, Satoshi Takahashi³, Ryuji Tada³, Hiroshi Naraoka⁴, Minoru Ikehara⁵, Asuka Yamaguchi⁶ (1.Department of Chemistry, Toho University, 2.NASA Astrobiology Institute, 3.Department of Earth and Planetary Science, Graduate School of Science, The Univeristy of Tokyo, 4.Department of Earth and Planetary Sciences, Kyushu University, 5.Center for Advanced Marine Core Research, Kochi University, 6.Atomosphere and Ocean Research Institute, The University of Tokyo)

*Saeka Masuda¹, Kosei E. Yamaguchi^1,3, Satoshi Takahashi², Ryuji Tada² (1.Chemistry, Department of science, Toho University , 2.Department of Earth and Planetary Science, University of Tokyo, 3.NASA Astrobiology Institute)

*Tomohisa Irino¹, Mui Fa Alison Lee², Ryuji Tada³ (1.Faculty of Environmental Earth Science, Hokkaido University, 2.Graduate School of Environmental Science, Hokkaido University, 3.Graduate School of Science, University of Tokyo)

*Aki Sakuma¹, Ryuji Tada¹, Hongbo Zheng², Tomohiro Kanzaki¹, Bin Wang³, Mengying He⁴, Shunsuke Kurokawa¹ (1.Department of Earth and Planetary Science, School of Science, the University of Tokyo, 2.School of Resource, Environment and Earth Science, Yunnan University, 3.College of Tourism and Environment, Shaanxi Normal University, 4.School of Geography Science, Nanjing Normal University)

*Yoshiaki Suzuki¹, Ryuji Tada¹, Tomohisa Irino², Kazuyoshi Yamada³, Kana Nagashima⁴, Takeshi Nakagawa⁵, Tsuyoshi Haraguchi⁶, Katsuya Gotanda⁷, SG12/06 Project members (1.The University of Tokyo, 2.Hokkaido University, 3.Museum of Natural and Environmental history, Shizuoka, 4.JAMSTEC, 5.Ritsumeikan University, 6.Osaka City University, 7.Chiba University of Commerce)

*Kenji Marc Raymond Matsuzaki¹, Takuya Itaki², Ryuji Tada¹, Shunsuke Kurokawa¹ (1.Department of Earth and Planetary Science, Graduate School of Science, the University of Tokyo, 2.Geological Survey of Japan, AIST, Marine Geology Research Group )

*Takuya Sagawa¹, Yoshitaka Nagahashi², Yasufumi Satoguchi⁶, Takuya Itaki³, Ann Holbourn⁷, Ken Ikehara³, Tomohisa Irino⁴, Ryuji Tada⁵ (1.Institute of Science and Engineering, Kanazawa University, 2.Faculty of Symbiotic Systems Science, Fukushima University, 3.Geological Survey of Japan, AIST, 4.Faculty of Environmental Earth Science, Hokkaido University, 5.Department of Earth and Planetary Science, The University of Tokyo, 6.Lake Biwa Museum, 7.Institute of Geosciences, Christian-Albrechts-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)

*Shunsuke Kurokawa¹, Ryuji Tada¹, Tomohisa Irino², Arisa Seki¹, Masafumi Murayama³ (1.Graduate School of Science,The University of Tokyo, 2.Faculty of Environmental Earth Science, Hokkaido University, 3.Faculty of Agriculture and Marine Science, Kochi University)

*Arisa Seki¹, Ryuji Tada¹, Shunsuke Kurokawa¹, Kazu Mitake¹, Masafumi Murayama² (1.Graduate School of Science,The University of Tokyo, 2.Faculty of Agriculture and Marine Science, Kochi University)

*Satoshi Takahashi¹, Ryuji Tada¹, Arisa Seki¹, Tomohisa Irino² (1.Department of Earth and Planetary Science, University of Tokyo, 2.Faculty of Environmental Earth Science, Hokkaido University)

*Shu Oshio¹, Kosei E. Yamaguchi^1,2, Satoshi Takahashi³, Ryuji Tada³, Hiroshi Naraoka⁴, Minoru Ikehara⁵, Asuka Yamaguchi⁶ (1.Department of Chemistry, Toho University, 2.NASA Astrobiology Institute, 3.Department of Earth and Planetary Science, Graduate School of Science, The Univeristy of Tokyo, 4.Department of Earth and Planetary Sciences, Kyushu University, 5.Center for Advanced Marine Core Research, Kochi University, 6.Atomosphere and Ocean Research Institute, The University of Tokyo)

*Saeka Masuda¹, Kosei E. Yamaguchi^1,3, Satoshi Takahashi², Ryuji Tada² (1.Chemistry, Department of science, Toho University , 2.Department of Earth and Planetary Science, University of Tokyo, 3.NASA Astrobiology Institute)

*Tomohisa Irino¹, Mui Fa Alison Lee², Ryuji Tada³ (1.Faculty of Environmental Earth Science, Hokkaido University, 2.Graduate School of Environmental Science, Hokkaido University, 3.Graduate School of Science, University of Tokyo)

*Aki Sakuma¹, Ryuji Tada¹, Hongbo Zheng², Tomohiro Kanzaki¹, Bin Wang³, Mengying He⁴, Shunsuke Kurokawa¹ (1.Department of Earth and Planetary Science, School of Science, the University of Tokyo, 2.School of Resource, Environment and Earth Science, Yunnan University, 3.College of Tourism and Environment, Shaanxi Normal University, 4.School of Geography Science, Nanjing Normal University)

*Yoshiaki Suzuki¹, Ryuji Tada¹, Tomohisa Irino², Kazuyoshi Yamada³, Kana Nagashima⁴, Takeshi Nakagawa⁵, Tsuyoshi Haraguchi⁶, Katsuya Gotanda⁷, SG12/06 Project members (1.The University of Tokyo, 2.Hokkaido University, 3.Museum of Natural and Environmental history, Shizuoka, 4.JAMSTEC, 5.Ritsumeikan University, 6.Osaka City University, 7.Chiba University of Commerce)

*Yoshiaki Suzuki¹, Ryuji Tada¹, Tomohisa Irino², Kazuyoshi Yamada³, Kana Nagashima⁴, Takeshi Nakagawa⁵, Tsuyoshi Haraguchi⁶, Katsuya Gotanda⁷, SG12/06 Project members (1.The University of Tokyo, 2.Hokkaido University, 3.Museum of Natural and Environmental history, Shizuoka, 4.JAMSTEC, 5.Ritsumeikan University, 6.Osaka City University, 7.Chiba University of Commerce)