*Junichi HARUYAMA¹, Isao KAWANO¹, Takashi KUBOTA¹, Masatsugu OTSUKI¹, Toshiyuki NISHIBORI¹, Takahiro IWATA¹, Yoshiaki ISHIHARA¹, Yukio YAMAMOTO¹, Aiko NAGAMATSU¹, Toshiaki HASENAKA², Hisayoshi SHIMIZU³, Tomokatsu MOROTA⁴, Tatsuhiro MICHIKAMI⁵, Motomaro SHIRAO⁶, Hideaki MIYAMOTO³, Kensei KOBAYASHI⁷, Satoru YAMAMOTO⁸, Yasuhiro YOKOTA⁸, Ko HASHIZUME⁹, Kazuto SAIKI⁹, Goro KOMATSU¹⁰ (1.Japan Aerospace Exploration Agency, 2.Kumamoto University, 3.University of Tokyo, 4.Nagoya University, 5.Kinki University, 6.Planetary Geology Institute, 7.Yokohama National University, 8.National Institute for Environmental Studies, 9.Osaka University, 10.Universita d'Annunzio)

*Tatsuhiko SATO¹, Ryuho KATAOKA², Aiko NAGAMATSU³ (1.Japan Atomic Energy Agency, 2.National Institute of Polar Research, 3.Japan Aerospace Exploration Agency)