摘要
根据华北地区１９９２～１９９５年两期ＧＰＳ复测资料，研究了该地区现今的地壳形变状态。采用坐标平移方法建立近似平面坐标，并在其上进行位移场和应变场的分析。研究结果认为，本区现今地壳形变以区内断块间的相对运动为主，是新构造运动的继承，其中以太行山山前断裂两侧形变场差异性最为明显，是本区的主要活动断块边界带。据此认为未来强震发生在本带的可能性较大。
he Current crustal deformation behavior in North China is studied on the basis of two-times GPS observations (1992～1995). The crustal displacement field and strain field are analyzed on a local two-dimension reference frame generated by a coordinate transformation. The characteristics of the crustal deformation based on the GPS survey is primarily the relative displacement between tectonic blocks in the study area, which is regarded as continuation of Neo-Tectonic movement. It is found that the crustal deformation shows the distinctive behavior between two sides of the Taihangshan fault representing the boundary of main active blocks in North China, in which there is a high probability of earthquak to be occured in the fature.
出处
《地壳形变与地震》
CSCD
1998年第1期31-37,共7页
Crustal Deformation and Earthquake
基金
国家自然科学基金
华北GPS地形变监测网建设资助
