*Tsubasa MIKI1, Shoichi KIYOKAWA2, Hiroshi NARAOKA2, Naoto TAKAHATA3, Akizumi ISHIDA3, Takashi ITO4, Minoru IKEHARA5, Kosei E. YAMAGUCHI6, Ryo SAKAMOTO7, Yuji SANO3
(1.Department of Earth and Planetary Sciences, Graduate School of Sciences, 33 Kyushu University, 2.Department of Earth and Planetary Sciences, Faculty of Sciences, 33 Kyushu University, 3.Department of Chemical Oceanography,Atmosphere and Ocean Research Institute, The University of Tokyo, 4.Teacher Training Course (Science Education), College of Education, Ibaraki University, 5.Graduate School of Integrated Arts and Sciences, Kochi University, 6.Department of Chemistry, Faculty of Science, Toho University / NASA Astrobiology Institute, 7.Mitsui Oil Exploration CO., LTD)