论文部分内容阅读
本文利用我国地震台站数字记录的瑞雷波资料，通过适配滤波频时分析技术和网格频散反演方法，求得了喜马拉雅碰撞造山带和羌塘盆地的瑞雷波频散和群速度的三维结构。再结合其它地球物理资料，研究了该区不同构造地带的地壳与上地幔结构、深层过程和三维模式，并探讨了青藏高原大陆物质运移的运动学过程和动力学机制。主要内容为：①青藏高原地壳、上地幔盖层和上地幔低速层的结构、分区格局及其空间展布；②羌塘盆地深部构造背景与油气远景；③雅鲁藏布江地带断裂体系和地球物理场异常特征；④喜马拉雅碰撞造山带的构造格架与深层过程。
Based on the Rayleigh wave data recorded by the seismic stations in China, the Rayleigh wave dispersion and group velocity in the Himalayan collisional orogen and the Qiangtang basin are obtained through the adaptive filter time-frequency analysis and grid-based dispersion inversion The three-dimensional structure. Combined with other geophysical data, the crust and upper mantle structure, deep process and three-dimensional model in different tectonic zones of this area are studied. The kinematic process and kinetic mechanism of the continental material movement in the Qinghai-Tibet Plateau are also discussed. The main contents are as follows: ①The structure, regional distribution and spatial distribution of the crust, upper mantle capping and upper mantle low velocity in the Qinghai-Tibet Plateau; ②The deep tectonic setting and hydrocarbon prospect in the Qiangtang Basin; ③The fault system and geophysical anomalies in the Brahmaputra area Features; ④ Himalayan collision orogenic tectonic framework and deep process.