| 各向异性ATI介质剪切位错源地震矩张量 |
| |
| 引用本文： | 蔡晓刚,姚陈,陈晓非.各向异性ATI介质剪切位错源地震矩张量[J].地球物理学报,2011,54(7):1772-1782. |
| |
| 作者姓名： | 蔡晓刚 姚陈 陈晓非 |
| |
| 作者单位： | 1. 中国地震局地壳应力研究所,北京 100085;
2. 中国地震局地质研究所,北京 100029;
3. 中国科学技术大学地球与空间科学学院,合肥 230026;
4. 北京大学地球与空间科学学院,北京 100871 |
| |
| 基金项目： | 中国地震局地壳应力研究所中央公益性基本科研业务专项项目，国家自然科学基金 |
| |
| 摘 要： | 考虑震源区为各向异性ATI介质情形下,给出了剪切位错源地震矩张量解析表达式并模拟了震源区各向异性对双力偶分量(DC)、补偿线性偶极子分量(CLVD)和各向同性分量(ISO)的影响,结果表明,即使剪切位错源仍能产生非双力偶各向同性分量,其导致沿着ATI介质对称轴方向体积变化；当断层面位于ATI介质对称平面或者震源区为各向...
|
| 关 键 词： | ATI介质 剪切位错源 地震矩张量 非双力偶 |
| 收稿时间： | 2010-06-17 |
Seismic moment tensor in anisotropic ATI media: shear faulting |
| |
| CAI Xiao-Gang,YAO Chen,CHEN Xiao Fei.Seismic moment tensor in anisotropic ATI media: shear faulting[J].Chinese Journal of Geophysics,2011,54(7):1772-1782. |
| |
| Authors: | CAI Xiao-Gang YAO Chen CHEN Xiao Fei |
| |
| Institution: | 1. Institute of Crustal Dynamics, China Earthquake Administration, Beijing 100085, China;
2. Institute of Geology, China Earthquake Administration, Beijing 100029, China;
3. School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China;
4. School of Earth and Space Sciences, Peking University, Beijing 100871, China |
| |
| Abstract: | Assuming the fault zone as anisotropic ATI media, the analytical expressions of seismic moment tensor in ATI media have been derived, furthermore, we have modeled the effect of anisotropic parameters on DC, CLVD, and ISO. Some results have shown that shear faulting can also generate isotropic component which will lead to volume change along ATI symmetry axis, however, when fault surface is located in the symmetry plane of ATI or fault zone is isotropic structure, shear faulting can be regarded as double couple mechanism in terms of radiation pattern. |
| |
| Keywords: | ATI media Shear faulting Seismic moment tensor Non-double couple |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《地球物理学报》浏览原始摘要信息 |
| 点击此处可从《地球物理学报》下载免费的PDF全文 |
|
