Hajime IIDA¹, Kosei E. YAMAGUCHI², Kazumasa OGURI³ (1.Toho University, 2.Toho University& NASA Astrobiology Institute, 3.JAMSTEC)

*Kosei E. YAMAGUCHI¹, Tomotaka R. YAHAGI¹, Shoichi KIYOKAWA² (1.Toho University and NASA Astrobiology Institute, 2.Kyushu University)

*Tsubasa MIKI¹, Shoichi KIYOKAWA¹, Hiroshi NARAOKA¹, Naoto TAKAHATA², Akizumi ISHIDA², Takashi ITO³, Minoru IKEHARA⁴, Kosei E. YAMAGUCHI⁵, Yuji SANO² (1.Department of Earth and Planetary Sciences, Graduate School of Sciences, Kyushu University, 2.Department of Chemical Oceanography, Atmosphere and Ocean Research Institute, University of Tokyo, 3.Teacher Training Course (Science Education), College of Education, Ibaraki University, 4.Research and Education Faculty, Center for Advanced Marine Core Research, Kochi University, 5.Department of Chemistry, Faculty of Science, Toho University; Astrobiology Institute, NASA)

*Shoichi KIYOKAWA¹, Takashi ITO², Tetsuji ONOUE³, Minoru IKEHARA⁴, Kosei E. YAMAGUCHI⁵, Kenji HORIE⁶, Kosuke T. GOTO⁷, Satoshi YOSHIMARU¹, Frank NYAME⁸, George TETTEH⁹ (1.Earth and Planetary Science, Kyushu University, 2.Ibaraki Univ. Dep. Education, 3.Kumamoto Univ. Dep. Science, 4.Kochi Univ. Marine core Research, 5.Toho Univ. Dep. Science & NASA Astrobiology Institute, 6.National institute of Polar Research, 7.Geological Survey of Japan, 8.University of Mines and Technology, Tarkwa,, 9.University of Ghana Dep. earth science)

*Naoyuki SHIMODE¹, Kosei E. YAMAGUCHI², Minoru IKEHARA³ (1.Department of Chemistry, Toho University, Japan, 2.Toho University & NASA Astrobiology Institute, 3.Center for Advanced Marine Core Research, Kochi University, Japan)