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| 引用本文： | 李杰,王琪,王晓强,帕尔哈提,刘代芹,朱治国,蒋靖祥.?????-????????????α?????????????[J].大地测量与地球动力学,2012,32(1):1-4. |
| 作者姓名： | 李杰 王琪 王晓强 帕尔哈提 刘代芹 朱治国 蒋靖祥 |
| 作者单位： | 1. 中国地质大学(武汉)地球物理与空间信息学院,武汉430074;新疆维吾尔自治区地震局,乌鲁木齐830011 2. 中国地震局地震研究所,武汉,430071 3. 新疆维吾尔自治区地震局,乌鲁木齐,830011 |
| 基金项目： | 中国地震局地震科技星火计划，地震科学联合基金，新疆维吾尔自治区科学研究和技术开发(含攻关)项目，国家自然科学基金 |
| 摘 要： | ????1998??2011?????????????90??GPS?????????????????????-????????????????????????????????????????????????????GPS????????????1???о??????????????????????????????????????????????????????2)?????????????????????????????????????????????????????????3)????????????????????????й????????????????з?????????????????????????????? |
| 关 键 词： | GPS??? ?????-????? ????? ?????? ??????? |
CHARACTERISTICS OF PRESENT CRUSTAL DEFORMATION AND DISTRIBUTION OF STRAIN FIELD IN SOUTHERN TIANSHAN-PAMIR REGION |
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| Li Jie , Wang Qi , Wang Xiaoqiang , Paerhati , Liu Daiqin , Zhu Zhiguo , Jiang Jingxiang.CHARACTERISTICS OF PRESENT CRUSTAL DEFORMATION AND DISTRIBUTION OF STRAIN FIELD IN SOUTHERN TIANSHAN-PAMIR REGION[J].Journal of Geodesy and Geodynamics,2012,32(1):1-4. | |
| Authors: | Li Jie Wang Qi Wang Xiaoqiang Paerhati Liu Daiqin Zhu Zhiguo Jiang Jingxiang |
| Institution: | 2)( 1)Institute of Geophysics & Geomatics,China University of Geosciences,Wuhan 430074 2)Earthquake Administration of Xinjiang Uygur Autonomous Region,Urumqi 830011 3)Institute of Seismology,CEA,Wuhan 430071) |
| Abstract: | An accurate crustal deformation field was derived from repeat surveys of almost 90 GPS stations carried out from 1998 to 2011 in southern Tianshan-Pamir region and present velocity field related to stable Euro-Asia plate and the distribution of crustal horizontal strain field were obtained as well.We studied the active velocity along the main faults in the region and the following results are achived.1)The crustal shortening from south to north is the main movement trend in the southern Tianshan-Pamir region.The movement of whole area shows the characteristics of clockwise rotation.2)The amplitude of maximum principle compressive strain decreases from west to east in the southern Tianshan-Pamir region.The regional tectonics controls the space distribution of the strain field.It shows the features that the principal stress direction basically is orthogonal to the direction of the tectonic trend in the region.3)There are close relation between the area of high shear strain and strong earthquakes.The maximum shear strain rate field concentrates mainly in the west of southern Tianshan,and the north area of Kalpin fault. |
| Keywords: | GPS station southern Tianshan-Pamir horizontal movement principle compressive strain maximum shear strain |
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