Petrology of volcanic rocks from Yoneyama Formation in Northern Fossa Magna, central Japan: REE and Sr-Nd-Hf isotope constraints on the magma process


Masataka Aizawa1, Ryuichi Shinjo2, Satoshi Okamura3, Toshiro Takahashi4 and Norie Fujibayashi4, (1)University of the Ryukyus, Okinawa, Japan, (2)Univ Ryukyus, Nishihara, Okinawa, Japan, (3)Hokkaido Education Univ, Sapporo, Japan, (4)Niigata University, Niigata, Japan