11:36 AM - 11:51 AM
*Yasuhito Sekine1, Shunichi Kamata2, Yuhiko Aoyama3, Masahiro Ikoma3, Takayuki Tanigawa4 (1.Earth-Life Science Insitute, Tokyo Institute of Technology, 2.Creative Res. Institution, Hokkaido Univerisity, 3.Dept of Earth and Planetary Sci., University of Tokyo, 4.Nat'l Inst. Tech., Ichinoseki Col.)