Abstract：By using threedimension nonlinear dynamic finite method and GPS velocity fields in two time periods,the late tectonic deformation features of HaiyuanLiupanshan arc fault and its Surrounding Area were studied. The following results are obtained.1) HaiyuanLiupanshan fault is of left lateral slip in whole but they are different in the two sections that the left lateral slip rate of Haiyuan fault is 2-5.5 mm/a and Liupanshan fault about 1.0 mm/a. 2) At present, the junction segment of Haiyuan fault with Liupanshan fault is in strong locking state, where the moving deformation difference is relatively strong and strain engery accumulate rapidly. As a result, the strong seismogenic background may exist in this area.
Zhang Xiaoliang,Shi Zhaomeng,Jiang Fengyun et al. RESEARCH ON LATE TECTONIC DEFORMATIONEVOLVEMENT OF HUAIYUAN-LIUPANSHANARC FAULT AND ITS SURROUNDING AREA[J]. jgg, 2011, 31(3): 20-24.
