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东海及其弧形的外缘,位于欧亚与太平洋板块的交汇处,构造活动强烈,构造格局复杂,在全球构造研究中具有典型的意义。本文利用重磁资料,使用sin x/x法,反演了该区的莫氏面的深度,并编绘了莫氏面深度图和地壳厚度图。结果表明,该区的莫氏面的起伏十分强烈。结合重力及海底地形地貌,区域构造等其它地质、地球物理资料,初步揭示,在东海及其邻域的各大构造带上,其地壳性质和应力分布状态有着重大的差异,它们的地壳上层区域构造与其深部的构造特征,有着密切的成因联系。
The outer edge of the East China Sea and its arc, located at the confluence of the Eurasian and Pacific plates, has a strong tectonic activity and complex tectonic structure, and is of typical significance in the study of global tectonics. In this paper, using the gravity and magnetic data, using the sin x / x method, the depth of the Mohsian surface in this area is inverted, and the Mohsian depth map and the crust thickness map are compiled. The results show that the Mohsian area in the area of ups and downs is very strong. Based on the data of gravimetry and other geophysical and geophysical data, such as gravitation, terrain topography and regional structure of the seabed, it is revealed that there are significant differences in crustal properties and stress distribution in the major structural zones of the East China Sea and its adjacent areas. Their upper crustal regions There is a close genetic relationship between tectonics and its tectonic features.