Department of Earth and Planetary Sciences, Tokyo Institute of Technology, O-okayama 2-12-1, Meguro, Tokyo 152-8551, Japan (M.I., S.M.); Department of Earth and Space Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka-shi, Osaka 560-0043, Japan (M.I., S.N.); Research Center for the Evolving Earth and Planets, Department of Environmental Science and Technology, Tokyo Institute of Technology, Post No. S2-17 Midori-ku, Yokohama-shi, Kanagawa 226-8503, Japan (Y.U.); and Department of Earth Science,...(2006-10時点)