11:00 AM - 11:15 AM
*Hiroshi OGASAWARA1, Harumi KATO2, Gerhard HOFMANN3, Dave ROBERTS3, Trevor CLEMENTS4, Phil PIPER4, Yasuo YABE5, Masao NAKATANI6, Makoto NAOI6 (1.Ritsumeikan University, 2.3DGeoscience Inc., 3.Anglogold Ashanti ltd., 4.Groundwork ltd., 5.Tohoku University, 6.The university of Tokyo)