通过野外观察及物探资料的处理解释、综合分析,将东海北部以江绍断裂带为界,分出以北的扬子准地台区与以南的加里东褶皱带;另以丽水—海丰断裂及沿海40m等深线断裂为界,划分出地质特征与两侧有异的海陆衔接带,其东侧又可划分出海礁凸起和西湖凹陷二亚区。充分表现出东西分带与南北分块之特征。 Through field observation and interpretation of geophysical data, a comprehensive analysis shows that the northern part of the East China Sea is divided by the Jiang Shao fault zone into the Yangtze quasi-platform zone to the north and the Caledonian fold zone to the south of the boundary. The other is the Lishui-Haifeng fault And the 40m isthmus fault along the coast, dividing the geological features and the land-sea convergence zone on both sides, and dividing the sea reefs and the sub-zone of Xihu depression on the east side. Fully demonstrated the characteristics of zoning and north-south block.