|
|||||
|
|
| 独山子山前断层现今活动特征与形变异常研究 | |
| 引用本文： | 刘冠中,王建军,王在华,蒋靖祥,谢周敏,陈兆亮.独山子山前断层现今活动特征与形变异常研究[J].地震研究,2009,32(2). |
| 作者姓名： | 刘冠中 王建军 王在华 蒋靖祥 谢周敏 陈兆亮 |
| 作者单位： | 1. 中国地震局地壳应力研究所,北京,100085 2. 新疆维吾尔自治区地震局,乌鲁木齐,830011 3. 新疆伊犁州地震局奎屯地震台,新疆,奎屯,833200 |
| 基金项目： | 中国地震局地壳应力研究所基本科研业务费专项 |
| 摘 要： | 利用新疆独山子台跨断层形变观测资料,对独山子山前断层的活动速率、活动特征及区域应力场进行了分析,结合震源机制解的研究成果进行了对比验证,同时应用"速率累加"分析方法进行了异常提取.结果显示:①独山子一安集海断裂垂直位移年平均变化量为0.106 mm,沿基线方向的水平位移年平均变化量为0.189 mm,沿断层走向的水平走滑年平均变化量为-0.883 mm,断层活动以右旋走滑为主兼具逆冲分量;②1993～2007年独山子断层的最大水平主压应力方向在339.85°～346.78°之间,平均为344.23°;③乌苏5.1级地震前,独山子台的形变记录曲线有较明显的速率异常变化与同震形变波动. |
| 关 键 词： | 跨断层形变观测 微量位移 主应力方向 前兆异常 独山子-安集海断裂 |
Movement Character and Deformation Anomaly Research of Dushanzi-Anjihai Fault Nowadays |
|
| LIU Guan-zhong,WANG Jian-jun,WANG Zai-hua,JIANG jing-xiang,XIE Zhou-min,CHEN Zhao-hang.Movement Character and Deformation Anomaly Research of Dushanzi-Anjihai Fault Nowadays[J].Journal of Seismological Research,2009,32(2). | |
| Authors: | LIU Guan-zhong WANG Jian-jun WANG Zai-hua JIANG jing-xiang XIE Zhou-min CHEN Zhao-hang |
| Affiliation: | 1.Institute of Crustal Dynamics;China Seismological Bureau;Beijing 100085;China;2.Seismological Bureau of Xinjiang Uygur Autonomous Region;Urumqi 830011;Xinjiang;China;3.Kuitun Seismostation;Earthquake Administration of Xinjiang Yili Prefecture;Kuitun 833200;China |
| Abstract: | Using the cross-fault deformation data from Dushanzi station,this paper makes a preliminary analysis on movement rate,movement character and regional tectonic stress field of Dushanzi-Anjihai fault,and compares with the results of focal mechanism solutions for verification.The result shows that:(1)The nowadays movement of Dushanzi-Anjihai fault is characterized by right-lateral thrust motion,the average annual change of vertical movement is 0.106mm,the average annual change of horizontal movement is 0.189mm... |
| Keywords: | Across-fault deformation observation Micro-displacement Principal stress's direction Preliminary anomaly Dushanzi-Anjihai fault |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
