【作者】 聂仁奇； 章传银； 李伟伟；

【Author】 NieRenqi~(1,2),ZhangChuanyin~2,LiWeiwei~3 1.Chinese Academy of Surveying and Mapping,Beijing,China 2.Shandong University of Science and Technology,Qingdao,,China 3.Tongji University,Shanghai,,China

【机构】 中国测绘科学研究院； 山东科技大学； 同济大学；

【摘要】 素有"世界屋脊"之称的青藏高原,是全球海拔最高的一个巨型构造地貌单元,也是当今世界上最年轻、最活跃的高原。青藏高原地处亚欧板块与印度板块的交界处,自两大板块发生碰撞挤压以来,不仅引起青藏高原的大幅度隆升,同时导致强烈的水平构造运动,成为中国大陆地壳运动的主要力源。青藏高原及其周边山系是全球最有典型意义的大陆地质构造带,也是研究大陆地壳形变最好的天然实验室。青藏块体东北缘是整个青藏高原向大陆内部扩张的前缘部位,也是高原最新和正在形成的重要组成部分,同时该区域也是我国重要的构造变形和强震活动区,该区域在构造活动、地理位置、自然环境及基础资料等方面具有很多优势,特别是中国地壳运动网络观测工程的建立以及高精度GPS观测技术的迅速发展,为研究青藏块体尤其是青藏块体东北缘的时空运动提供了强有力的数据支持。本文基于上述GPS观测资料,结合板块构造和大地动力学理论对青藏块体这一地区进行了块体划分,求解了各个块体的水平速度场,从而分析了该地区地壳水平运动特征。并利用时间序列分析的方法对高程方向数据进行处理,分析了该地区地壳高程方向的运动特征。更多还原

【Abstract】 Known as the "roof of the world," said the Qinghai-Tibet Plateau,is the world’s highest,a huge tectonic landform unit.It is also the world’s youngest and most active of the plateau.Qinghai-Tibet Plateau is located in the Indian plate and Eurasian plate at the junction of two plates collide since the squeeze has not only caused a significant uplift of the Qinghai-Tibet Plateau,which leads to a strong level of tectonic movement,became the main force of crustal movement source.Qinghai-Tibet Plateau and its surrounding mountains is the world’s most typical geological structure with the mainland,but also of continental crust deformation of the best natural laboratory.Northeastern margin of Qinghai-Tibet block is the expansion of the entire Tibetan plateau to the leading edge of the internal parts of the mainland,but also the formation of the plateau current and important part of being,while the region is also of important tectonic deformation and earthquake activity area,the region in the tectonic activity,geographical location,natural environment and basic information,and so has many advantages,especially in China Crustal Movement Observation Network project and the high-precision GPS observations to establish the rapid development of technology for the study of the Qinghai-Tibet block,especially the northeastern margin of Qinghai-Tibet block to provide space-time movement strong data support.Based on the GPS observations,combined with kinetic theory of plate tectonics and the earth on the Qinghai-Tibet block in the region was divided into blocks,each block to solve the horizontal velocity field,which analyzes the characteristics of horizontal crustal movement in the region.Time series analysis using the method of the direction of elevation data processing, analysis,elevation of the direction of crustal movement.更多还原