*Masayuki UESUGI¹, Hiroshi NARAOKA², Motoo ITO³, Hikaru YABUTA⁴, Fumio KITAJIMA², Yoshinori TAKANO³, Hajime MITA⁵, Yoko KEBUKAWA⁶, Toru YADA¹, Yuzuru KAROUJI¹, Yukihiro ISHIBASHI¹, Wataru SATAKE⁷, Tatsuaki OKADA¹, Masanao ABE¹ (1.Japan aerospace exploration agency, 2.Department of Earth and Planetary Sciences, Kyushu University, 3.Kochi Institute for Core Sample Research JAMSTEC, 4.Osaka University, Department of Earth and Space Science, 5.Fukuoka Institute of Technoology, Faculity of Engineering, Department of Life, Environment and Mater, 6.Department of Natural History Sciences Hokkaido University, 7.Department of Earth and Planetary Science, University of Tokyo)

*Yoko KEBUKAWA¹, Michael ZOLENSKY², David KILCOYNE³, Zia RAHMAN⁴, Marc FRIES², George CODY⁵ (1.Department of Natural History Sciences, Hokkaido University, 2.NASA Johnson Space Center, 3.Lawrence Berkeley National Laboratory, 4.Jacobs-Sverdrup, 5.Geophysical Laboratory, Carnegie Institution of Washington)