Crustal composition in the Hidaka Metamorphic Belt estimated from seismic velocity by laboratory measurements

Koichi Yamauchi1, Masahiro Ishikawa2, Hiroshi Sato3, Takaya Iwasaki3 and Tsuyoshi Toyoshima4, (1)Earthquake Research Institute, University of Tokyo, Tokyo, Japan, (2)Yokohama National University, Yokohama, Japan, (3)University of Tokyo, Bunkyo-ku, Japan, (4)Niigata University, Niigata, Japan