| The Present Space-Time Motion and Deformation Features of the Northeastern Margin of the Qinghai-Xizang（Tibet） Block and Its Adjacent Area |
| |
| 作者姓名： | Zhang Xiaoliang |
| |
| 作者单位： | [1]TheSecondCrustalDeformationMonitoringCenter,CEA,Xi＇an710054,China [2]CenterforAnalysisandPrediction,CEA,Beijing100036,China [3]InstituteofSeismology,CEA,Wuhan430071,China [4]TheSecondCrustalDeformationMonitoringCenter,CEA,Xi＇an710054,China |
| |
| 基金项目： | ThisresearchwassponsoredbytheNationalKeyFoundationResearch“StrongEarthquakeMechanismandPredictionontheChineseMainland”(G1998040703)andtheJointEarthquakeScienceFoundation(603002),China. |
| |
| 摘 要： | On the basis of Discontinuous Deformation Analysis (DDA), and considering the moderate intrusion of specific block boundaries to different extents, the first-order block motion model is established for the northeastern margin of Qinghai-Xizang(Tibet) block and the kinematical model for depicting deformation of small regions as well by using GPS observations of three periods (1991, 1999 and 2001). By simulating, we obtained the motion features of the firstorder blocks between the large WWN faults on the sides of the studied region, the distribution features of the principal strain rate field and the inhomogeneous motion features with spacetime of the faults in the northern boundary of the Qinghai-Xizang (Tibet) block.
|
| 关 键 词： | 青海-西藏 不连续变形 GPS观测 活动板块 地壳运动 |
The Present Space-Time Motion and Deformation Features of the Northeastern Margin of the Qinghai-Xizang(Tibet) Block and Its Adjacent Area |
| |
| Zhang Xiaoliang.The Present Space-Time Motion and Deformation Features of the Northeastern Margin of the Qinghai-Xizang(Tibet) Block and Its Adjacent Area[J].Earthquake Research in China,2004,18(2):161-170. |
| |
| Authors: | Zhang Xiaoliang |
| |
| Institution: | Zhang Xiaoliang 1),Jiang Zaisen 2),Wang Shuangxu 1),Zhang Xi 1),Wang Qi 3) and Chen Bing 1) 1)The Second Crustal Deformation Monitoring Center,CEA,Xi'an 710054,China 2)Center for Analysis and Prediction,CEA,Beijing 100036,China 3)Institute of Seismology,CEA,Wuhan 430071,China |
| |
| Abstract: | On the basis of Discontinuous Deformation Analysis (DDA), and considering the moderate intrusion of specific block boundaries to different extents, the first-order block motion model is established for the northeastern margin of Qinghai-Xizang(Tibet) block and the kinematical model for depicting deformation of small regions as well by using GPS observations of three periods (1991, 1999 and 2001). By simulating, we obtained the motion features of the first-order blocks between the large WWN faults on the sides of the studied region, the distribution features of the principal strain rate field and the inhomogeneous motion features with space-time of the faults in the northern boundary of the Qinghai-Xizang (Tibet) block. |
| |
| Keywords: | The northeastern margin of Qinghai-Xizang(Tibet) block Discontinuous Deformation Analysis GPS observations Active block |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《中国地震研究》浏览原始摘要信息 |
| 点击此处可从《中国地震研究》下载免费的PDF全文 |
|
