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根据黄海及其周边地区的布格重力资料 ,通过多种方法处理 ,得到有关断裂的信息并求取了研究区的地壳厚度分布 .经过与地震层析成像结果、地质资料的对比和综合分析 ,认为朝鲜半岛西缘断裂带和济州岛南缘断裂带均为深大断裂 ,断裂带的两侧速度结构存在较大差异 .推断朝鲜半岛和南黄海分别属于不同的地质单元 .根据对岩石层结构的综合分析 ,认为中朝与扬子块体在黄海海域的接触关系是扬子块体推覆于中朝块体之上 .从目前的地震层析成像、重力异常、地壳厚度分布等结果来看 ,还不足以判断扬子与华南块体结合带在黄海海域中的准确位置 .
According to the Bouguer gravity data in the Yellow Sea and its surrounding area, the information about the fault is obtained through a variety of methods and the crustal thickness distribution in the study area is obtained.Comparing with the results of seismic tomography, geological data and comprehensive analysis, It is concluded that both the western margin of the Korean Peninsula and the southern margin of Jeju Island are deep faults, and the velocity structures on both sides of the fault zone are quite different. It is inferred that the Korean Peninsula and the South Yellow Sea belong to different geological units, , We conclude that the contact between the China and the DPRK and the Yangtze block in the Yellow Sea is that the Yangtze block is overlying the block between China and North Korea.According to the results of the current seismic tomography, gravity anomalies and crustal thickness distribution, Not enough to determine the Yangtze and South China block in the Yellow Sea area with the exact location.