根据GPS数据的北天山现代构造活动概率区研究

MODERN TECTONIC ACTIVITY PROBABILITY REGION IN THE NORTHERN TIANSHAN MOUNTAINS BY GPS DATA

根据GPS数据的现代运动场研究了北天山的现代形变过程。在这一地区,速率分量和某些类型形变速率场的不均性都表现出与现代构造活动区密切相关。以场的水平梯度极值区图为基础划分构造活动区段,查明强震震中区就位于这些活动区。当取得活动区状态的GPS数据时,区域地壳动力学状态监测是最有效的。

The article researches the modem deformation process in the northern Tianshan mountains with GPS data. The heterogeneity of velocity component and some types of deformation velocity field are closely related with modem tectonic activity area in this region. Based on extremum area of field horizontal grads, we divide tectonic activity section, and find out that epicenter areas of strong earthquakes locate in these active regions. Monitoring dynamic condition of regional crust is the most effective with GPS data in active region