| 山东及邻区地壳介质剪切波分裂研究 |
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| 引用本文： | 苗庆杰,刘希强,石玉燕,曲均浩,郑建常,田凤东.山东及邻区地壳介质剪切波分裂研究[J].中国地震研究,2016(4):556-565. |
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| 作者姓名： | 苗庆杰 刘希强 石玉燕 曲均浩 郑建常 田凤东 |
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| 作者单位： | 山东省地震局, 山东济南 250102,山东省地震局, 山东济南 250102,山东省地震局, 山东济南 250102,山东省地震局, 山东济南 250102,山东省地震局, 山东济南 250102,山东省地震局, 山东济南 250102 |
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| 基金项目： | 山东省自然科学基金（ZR2014DQ019）、地震科技星火计划资助项目（XH15026）、山东省地震局重点基金项目（JJ1407Y）、山东省地震局合同制项目（15Y102）资助 |
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| 摘 要： | 采用山东地震台网记录到的近场源地震波形数据，基于剪切波分裂研究，获得山东地区多个台站的剪切波分裂参数。研究结果表明，快剪切波偏振优势方向反映了该地区构造应力空间分布特征，CHD台和LIS台显示出两个优势偏振方向，揭示山东地区地壳介质各向异性受到区域背景应力及局部断裂构造的双重制约。
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| 关 键 词： | 山东地区 剪切波分裂 偏振方向 地震各向异性 构造应力 |
| 收稿时间： | 2015/9/8 0:00:00 |
| 修稿时间： | 2015/12/29 0:00:00 |
Shear-wave Splitting in the Crust beneath Shandong and Its Adjacent Area |
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| Miao Qingjie,Liu Xiqiang,Shi Yuyan,Qu Junhao,Zheng Jianchang and Tian Fengdong.Shear-wave Splitting in the Crust beneath Shandong and Its Adjacent Area[J].Earthquake Research in China,2016(4):556-565. |
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| Authors: | Miao Qingjie Liu Xiqiang Shi Yuyan Qu Junhao Zheng Jianchang and Tian Fengdong |
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| Institution: | Earthquake Administration of Shandong Province, Jinan 250102, China,Earthquake Administration of Shandong Province, Jinan 250102, China,Earthquake Administration of Shandong Province, Jinan 250102, China,Earthquake Administration of Shandong Province, Jinan 250102, China,Earthquake Administration of Shandong Province, Jinan 250102, China and Earthquake Administration of Shandong Province, Jinan 250102, China |
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| Abstract: | Based on the seismic data of near-field source from the Shandong Digital Seismic Network, this study obtained the shear-wave splitting parameters from multiple stations. The results show that dominant directions of polarizations of fast shear-waves reflect the spatial distribution characteristics of tectonic stress in this area, CHD and LIS stations show 2 dominant directions, and reveals that the crustal seismic anisotropy in the Shandong area is constrained by the regional stress background, local failure and structure. |
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| Keywords: | Shandong area Shear-wave splitting Polarization Seismic anisotropy Tectonic stress |
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