【作者】 王有学； 韩果花；

【Author】 Wang Youxue, Han Guohua(Dept. of Resources and Environmental Engineering, Guilin Institute of Technology Guilin 514004)

【机构】 桂林工学院资源与环境工程系；

【摘要】 中国西部大陆位于西伯利亚板块与印度板块之间,在漫长的地质构造演化过程中经历了一系列的构造活动及地质演化历史,形成了蔚为壮观的中国西部大陆奇特的地质构造格局。无论浅部还是深部,这种地质构造特征在地壳内部甚至在上地幔顶部,在其地球物理场中都留下了各自独特的印记。正是这些地球物理场的特征为我们研究中国西部大陆岩石圈的三维结构及构造单元的划分提供了有力的地球物理证据。根据对人工爆破地震测深结果的研究分析,结合地质与其他地球物理资料,对中国西部地壳上地幔速度结构的系统分析及研究,我们将中国西部大陆划分为新疆地块、青藏地块及南北构造带等三个一级构造单元,每个一级构造单元又可以进一步划分为若干个次级构造单元,且各构造单元各具其特征。更多还原

【Abstract】 : The western Chinese continent locates between Eurasian and Indian Plates with a lot of long and complicated geological evolutions and tectonic events, and formed a magnificent tectonic regime in western China. The tectonic features were shaped by the geophysical fields it holds, either shallow, deep or intracrust, upper mantle. It is the geophysical characteristics that provide powerful and important evidences for us to study the 3D continental lithosphere structure and tectonics in Western China. According to the results from Deep Seismic Sounding in western China, combining the geological and other geophysical information, the western Chinese continent can be divided into three blocks, Xinjiang Terrain, Qingzang Terrain, and Sichuan -Yunnan Tectonic Belt, each of which has its features respectively.更多还原