ANALYSIS OF MOVEMENT CHARACTERS OF PRESENT-DAY ACTIVE TECTONICS OF NORTHERN TIANSHAN REGION
Li Jie 1,2) ; Wang Xiaoqiang 2) ; Tan Kai 3,4) ;Liu Daiqing 1) ;Paerhati 1) ; Jiang Jinxiang 1) ; and Fang Wei 1)
1) Earthquake Administration of Xinjiang Uygur Autonomous Region, Urumqi 8300112) Research Center of Space Science and Technology, China University of Geosciences, Wuhan 4300743) Institute of Geophysics，CEA,Beijing 1000814) Crustal Movement Laboratory，Institute of Seismology,CEA,Wuhan 430071
Abstract：Using GPS measurements in the Northern Tienshan Mountains from 1998 to 2008, we obtain the presentday crustal movement velocity field for more than 30 sites, at the same time, estimate active rates on the major faults in the studied region. The GPS velocity results show that there is nonuniformity for NS direction crustal shortening of northern Tianshan area and it shows the correlation between the differences of the absorption rate and frequency of the earthquake occurring. The active faults movement characters derived from the GPS measurement results are consistent with the geological results, but there are differences in the value.
Li Jie,Wang Xiaoqiang ,Tan Kai et al. ANALYSIS OF MOVEMENT CHARACTERS OF PRESENT-DAY ACTIVE TECTONICS OF NORTHERN TIANSHAN REGION[J]. jgg, 2010, 30(6): 1-5.
