| 青藏高原现今高分辨率地壳运动特征 |
| |
| 引用本文： | 方颖,江在森,张晶,武艳强.青藏高原现今高分辨率地壳运动特征[J].地球科学,2009,34(3):399-404. |
| |
| 作者姓名： | 方颖 江在森 张晶 武艳强 |
| |
| 作者单位： | 中国地震局地震预测研究所, 北京 100036 |
| |
| 基金项目： | 地震预测研究所基本科研业务专项基金，国家自然科学基金，科技支撑项目 |
| |
| 摘 要： | 利用GPS资料, 采用最小二乘配置和小波技术分析了青藏高原的地壳运动特征, 对该区地壳运动强度和涡旋运动进行了定量分析.结果显示, 青藏高原地壳运动强度沿喀喇昆仑断裂、玛尼-玉树-鲜水河-小江的弧型构造带, 自西向东递减.川滇菱形块体显示出北强南弱、西强东弱的特点, 东边界形成明显的分界线, 而西边界并不明显; 青藏高原存在3个涡旋分区: 顺时针旋转的拉萨、羌塘及川滇中西部地区, 亚东-谷露断裂以东的区域为其涡旋高值区; 逆时针旋转的柴达木地块及其以北的地区, 西昆仑断裂与阿尔金断裂之间为其高值区; 逆时针旋转的青藏高原与华南地块的边界带, 龙门山与安宁河的拐角处为其高值区.
|
| 关 键 词： | 地壳运动 涡旋运动 青藏高原 GPS |
| 收稿时间： | 2008-10-21 |
High-Resolution Characteristics of Recent Crustal Movement in Qinghai-Tibet Plateau |
| |
| FANG Ying,JIANG Zai-sen,ZHANG Jing,WU Yan-qiang Institute of Earthquake Science,China Earthquake Administration,Beijing ,China.High-Resolution Characteristics of Recent Crustal Movement in Qinghai-Tibet Plateau[J].Earth Science-Journal of China University of Geosciences,2009,34(3):399-404. |
| |
| Authors: | FANG Ying JIANG Zai-sen ZHANG Jing WU Yan-qiang Institute of Earthquake Science China Earthquake Administration Beijing China |
| |
| Institution: | FANG Ying,JIANG Zai-sen,ZHANG Jing,WU Yan-qiang Institute of Earthquake Science,China Earthquake Administration,Beijing 100036,China |
| |
| Abstract: | Characteristics of current crustal movement in Qinghai-Tibet Plateau were analyzed with least square collusion and wavelet using GPS data,and crustal movement strength and vortex movement were analyzed quantitatively.The conclusions are drawn as follows:The crustal movement strength in Qinghai-Tibet Plateau decreases from west to east along arc tectonic ruptures formed by Kala-Kunlun,Mani,Yushu,Xianshuihe and Xiaojiang faults.The crustal movement strengths in north and west are stronger than those of south ... |
| |
| Keywords: | GPS |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《地球科学》浏览原始摘要信息 |
| 点击此处可从《地球科学》下载免费的PDF全文 |
|
