%0 Conference Proceedings %T An extension of lower crust in central Kyushu, Japan,inferred from GPS derived velocity field,“An Implication of Beppu-Shimabara graben structure” %A Hosseini, Sayyed Keivan %A Shoichi Yoshioka %A Takeshi Matsushima %A Sadaomi Suzuki %J همایش بین المللی انجمن ژئوفیزیک و ژئودزی %D 2007