From mixed path Ray-leigh wave group velocities of fundamantal model. Numerical inversion from the pure path group velocity dispersion is made to study the layered structures of the crust and upper mantle in the two blocks.

• 利用最小二乘法；从混合路径基阶瑞利面波群速度频散提取两块体的纯路径频散；并反演其地壳、上地幔的层状结构.