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本文在系统整理青藏块体北缘跨断层测量资料的基础上,进行了形变类型的划分,探讨了不同类型形变所反映的断层运动性质。据此,论述了研究区主要构造带近期构造运动状况及地震活动性。作者指出,跨断层测量既可以反映附近断裂运动的态势,又可反映区域应力场的变化;它既可作为提取局部孕震信息的手段,在短临预报中发挥作用,还可根据其反映的断裂宏观变化特征,进行中、强地震较大尺度的空间-时间预测。
Based on systematically sorting the cross-fault survey data of the northern margin of Qinghai-Tibet block, the deformation types are divided and the fault movement properties reflected by different types of deformation are discussed. Based on this, the recent tectonic movement and seismicity of the main tectonic belts in the study area are discussed. The authors point out that the cross-fault survey can not only reflect the trend of the nearby fault movement but also reflect the change of regional stress field. It can not only act as a means of extracting local seismogenic information but also play an important role in short-term and medium-term prediction, The macroscopic variation of faults, and the larger-scale space-time prediction of moderate and strong earthquakes.