-
Ryuta Okubo
-
Hirokuni Oda
-
Toshiaki Takayama
-
Akihisa Kitamura
-
Author's Organization:Nittetsu Mining Co.,Ltd., Department of Geology and Mineralogy,Faculty of Science,Kyoto University Department of Geology,College of Liberal Arts,Kanazawa University Institute of Geosciences,Faculty of Science,Shizuoka University