- 责任者：Yang Bo (No.1 Monitoring and Application Center ; Tianjin 300180 ; China) ; Zhan Wei
- 刊名：Journal of Seismological Research
- 出版年：2013
- 卷期：36(4)
- 关键词：活动构造 ; active tectonics ; 地形变 ; ground deformation ; 陕西 ; Shaanxi Province ; 河北 ; Hebei Province ; 内蒙古 ; Inner Mongolia
- 页码：p.472-477
- 图表：5 illus., 9 refs.
- 分类号：0500
- issnNo：ISSN1000-0666
- isbnNo：CN53-1062/P
Based on the GNSS observation data from 1999 to 2007 and from 2009 to 2012,we analyzed the mode and intensity of the present horizontal tectonic motion in Shanxi-Hebei-Inner Mongolia area,by using the method of multi-kernel function analysis,horizontal movement filtering,and the arithmetic about the tectonic motion result parallel or perpendicular to the fault-belt obtained by coordinate transform formula.The results show as follows：（1） From 1999 to 2007,the horizontal tectonic activity perpendicular to the fault-belt showed tensional activity and basically uniformly transited in gradual active manner,and the maximal value was 3 mm/a in the range of about 400 km.However,there were no apparent strike-slip activity along the fault-belt,and the relative compression amount was about 1 mm/a in the range of 400 km.（2） From 2009 to 2012,the tectonic activity parallel to the fault-belt still showed compressive activity,and the tectonic activity perpendicular to the fault-belt showed the space activity of tensional and compressive alternately.This dynamic variation may be dominated by dynamic adjustment of environment stress field.