首页|期刊导航|中国地震研究：英文版|Analysis on the Observation Data of Three Profiles across the Qilian Mountain-Haiyuan Fault Zone
中国地震研究：英文版2011，Vol.25Issue(4)：486-497,12.
Analysis on the Observation Data of Three Profiles across the Qilian Mountain-Haiyuan Fault Zone
Analysis on the Observation Data of Three Profiles across the Qilian Mountain-Haiyuan Fault Zone
摘要
Abstract
By analyzing GPS, leveling and gravity observation data from the Minle, Huazangsi and Shagouhe profiles across the Qilian Mountain-Haiyuan fault during 2005 - 2009, the changes of these data and activity characteristics of the main faults in different time are obtained. The results show that the Changma-Erbo, Maomaoshan, Zhunglanghe and Haiyuan faults have been active in recent years. The relationship between the vertical displacement and mobile gravity data is analyzed, and the results reveal the gravity changes are mainly due to mass transfer. The results of GPS observation show that the direction of the horizontal movement velocity was almost along the fault strike in 2006 - 2007, while the horizontal velocity deviated from the fault direction in 2007 - 2008, characterized by increased eastward displacement. Further analysis upon removal of the linear trend on the time series of the N and E coordinate values of the continuous observation stations of the Crustal Movement Observation Network of China near the three profiles reveals that the Wenchuan earthquake had an effect on the observations in 2007 - 2008. Comparing the gravitational changes in 2008 - 2009 with the Bouguer gravity anomaly background, we find that the area near Minle profile is in the stage of adjustment and recovery, while the anomaly is not completely recovered around Huazangsi and Shagouhe profiles.关键词
海原断裂带/观测数据/配置文件/祁连山/数据分析/布格重力异常/重力数据/垂直位移Key words
Qilian Mountain-Haiyuan fault zone/Comprehensive observation profiles/Horizontal movement rate/Vertical displacement/Gravity change分类
天文与地球科学引用本文复制引用
Hu Yaxuan,Wang Xiong,Cui Duxin,Zhu Yiqing..Analysis on the Observation Data of Three Profiles across the Qilian Mountain-Haiyuan Fault Zone[J].中国地震研究：英文版,2011,25(4):486-497,12.基金项目
This project was sponsored by Special Scientific Research Project, China Earthquake Administration (200908029) and National Natural Science Foundation of China (40674057). （200908029）
