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| 龙门山断裂构造带GPS研究 | |
| 引用本文： | 唐文清,刘宇平,陈智梁,张清志,赵济湘,B.C Burchfiel,R.W.King.龙门山断裂构造带GPS研究[J].大地测量与地球动力学,2004,24(3):57-60. |
| 作者姓名： | 唐文清 刘宇平 陈智梁 张清志 赵济湘 B.C Burchfiel R.W.King |
| 作者单位： | 1. 西南交通大学,成都,610031;成都地质矿产研究所,成都,610082 2. 成都地质矿产研究所,成都,610082 3. 麻省理工学院,美国,麻萨诸塞,坎布里奇,02139 |
| 基金项目： | 中国地质调查局“青藏高原东部现代地壳运动GPS监测”项目(2 0 0 3 13 0 0 0 0 2 4)，美国自然科学基金(EAR890 40 96、EAR9614 670、INT90 0 5 3 0 5 ) |
| 摘 要： | 龙门山断裂构造带作为川青地块与扬子地块的碰撞边界，具有特殊的构造性质及明显的分段性。根据1991年以来GPS观测结果，对其分段活动性的研究表明：断裂带运动速率北段为1．54ram／a，中段为2．77mm／a，南段为5．23mm／a。现代构造活动性质总体表现为挤压走滑；同时，由北向南逐渐由挤压走滑转变为伸展走滑，其原因为在青藏高原总体运动条件下的相邻活动断裂的相互作用、相互影响。 |
| 关 键 词： | 断裂构造带 GPS 构造运动 运动速率 |
| 文章编号： | 1671-5942(2004)03-0057-04 |
| 修稿时间： | 2004年2月15日 |
GPS STUDY ON LONGMENSHAN FAULT ZONE |
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| Tang Weiqing, Liu YupingChen Zhiliang,Zhang qingzhi,Zhao JixiangB.C. Burchfiel and R.W.King Southwest Jiaotong University,Chengdu Chengdu Institute of Geology and Mineral Resources,Chengdu Massachusetts Institute of Technology,Cambridge,Massachusetts,USA.GPS STUDY ON LONGMENSHAN FAULT ZONE[J].Journal of Geodesy and Geodynamics,2004,24(3):57-60. | |
| Authors: | Tang Weiqing Liu YupingChen Zhiliang Zhang qingzhi Zhao JixiangBC Burchfiel and RWKing Southwest Jiaotong University Chengdu Chengdu Institute of Geology and Mineral Resources Chengdu Massachusetts Institute of Technology Cambridge Massachusetts USA |
| Institution: | Tang Weiqing+1,2) Liu Yuping2)Chen Zhiliang2),Zhang qingzhi2),Zhao Jixiang2)B.C. Burchfiel3) and R.W.King3) 1) Southwest Jiaotong University,Chengdu 610031 2) Chengdu Institute of Geology and Mineral Resources,Chengdu 610082 3) Massachusetts Institute of Technology,Cambridge,Massachusetts,USA 02139 |
| Abstract: | Longmenshan fault zone, being collision boundary of Chuan Qing with Yangtze block,is charactered by especial tectonic and segmentation.According to GPS measurements from 1991,the study on segmental activity of the fault zone indicates: that present moving velocities of northern segment,middle segment and south segment is 1.54 mm/a,2.77 mm/a and 5.23 mm/a,respectively.As the whole, its present tectonic activity is compressional and of strike slip;from north to south, character of fault zone transfers from compression and strike slip to trend slip,because the Longmenshan fault zone interacts with the reighboring active faults under the condition of whole Qinghai Tibet plateaus tectonic. |
| Keywords: | Longmenshan fault zone GPS tectonic movement moving velocity property |
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