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对天山地区GPS测量成果进行系统处理,获得了整体天山相对于欧亚大陆的现今地壳运动的212个GPS站速度场结果,再现了受印度板块向北推挤作用下天山地区相对欧亚板块的水平构造变形分布状态。天山地区GPS速度场表明,天山地壳缩短由南向北、由西向东递减,表明板块的推挤作用力随着天山的褶皱变形相应减弱;西天山的变形强于东天山的主要原因可能是西部帕米尔高原对天山的直接俯冲推挤作用的结果;而东天山的构造活动则是塔里木块体对其缓慢推挤的结果。
The results of GPS measurements in Tianshan area are systematically processed and the velocity results of 212 GPS stations in the whole Tianshan relative to the current crustal movement in Eurasia are obtained. Based on the results of the velocity field of 212 GPS stations in the Tianshan area, Horizontal tectonic deformation distribution. The GPS velocity field in Tianshan shows that the shortening of the crust in the Tianshan Mountains decreases from south to north and decreases from west to east, indicating that the pushing force of the plate decreases correspondingly with the fold deformation of the Tianshan Mountains. The main reason that the deformation of the west Tianshan is stronger than that of the east Tianshan may be the west The result of the direct subduction of the Pamirs to the Tianshan Mountains; the tectonic activity of the East Tianshan Mountains is the result of the slow pushing of the Tarim block.