11:30 AM - 11:45 AM
*Takeshi Nakajima1, Hideki Iwano2, Tohru Danhara2, Tohru Yamashita2, Yukio Yanagisawa1, Yoshihiro Tanimura3, Mahito Watanabe1, Takayuki Sawaki1, Satoshi Nakanishi4, Hiroyuki Mitsuishi4, Okiyuki Yamashina4, Seiichi Imahori5 (1.Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology, 2.Kyoto Fission-Track Co., Ltd., 3.National Museum of Nature and Science, 4.JX Nippon Oil & Gas Exploration Corporation, 5.JX Nippon Oil & Gas Exploration Technical Services Corporation)