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为了进一步了解中国东部沿海及相邻海域的地壳－上地幔结构特征，对该区域的构造演化历史、地震活动及深部构造等方面研究提供一些基础资料，利用３１个数字地震台记录的高质量瑞利波资料，采用一种新的混合路径频散的网格反演方法（Ｏｃｃａｍ方法），对中国东部海域瑞利波群速度横向不均匀分布进行了初步研究．根据反演得到的１０—１５０ｓ共３６个中心周期的群速度分布特征，以及几个典型地点的剪切波速度结构的深度变化，对研究区域内各构造单元的划分以及它们在速度结构和上地幔低速层埋深等方面的特征进行了讨论。
In order to further understand the structural characteristics of the crust-upper mantle in the coastal areas and adjacent sea areas in eastern China, some basic data are provided for the study of tectonic evolution history, seismic activity and deep structure in the area. Using 31 digital seismic stations recorded high quality Swiss Li Bo data, a new method of mesh inversion based on dispersion of mixed paths (Occam method) was used to study the lateral non-uniform distribution of Rayleigh wave velocities in eastern China. Based on the group velocity distribution features of 36 central cycles during the 10-150s retrieved from the inversion and the depth variations of the shear wave velocity structures at several typical sites, the division of structural units within the studied area and their variations in velocity structure and velocity The characteristics of the depth of the low-lying mantle and so on are discussed.