川滇地区壳幔地震各向异性研究进展
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  • 英文篇名:Reviews on the Seismic Anisotropy in the Crust and Mantle of Sichuan-Yunnan Area,China
  • 作者:张艺 ; 高原 ; 赵镇岭
  • 英文作者:Zhang Yi;Gao Yuan;Zhao Zhenling;Shanghai Earthquake Agency;Key Laboratory of Earthquake Prediction,Institute of Earthquake Forecasting,CEA;
  • 关键词:川滇地区 ; 地震各向异性 ; S波分裂 ; 体波 ; 面波 ; 地壳 ; 上地幔
  • 英文关键词:Sichuan-Yunnan area;;Seismic anisotropy;;Shear-wave splitting;;Body wave;;Surface wave;;Crust;;Upper mantle
  • 中文刊名:ZGZD
  • 英文刊名:Earthquake Research in China
  • 机构:上海市地震局;中国地震局地震预测研究所(地震预测重点实验室);
  • 出版日期:2018-06-15
  • 出版单位:中国地震
  • 年:2018
  • 期:v.34
  • 基金:国家重点研发计划课题(2016YFC0600302);; 国家自然科学基金项目(41474032);; 上海市科委社发领域科研项目“短临地震地电观测新技术研究”(16dz1206000)共同资助
  • 语种:中文;
  • 页:ZGZD201802003
  • 页数:12
  • CN:02
  • ISSN:11-2008/P
  • 分类号:46-57
摘要
根据川滇地区已有的地震各向异性研究结果,利用体波、面波资料的结果,分析川滇地区不同构造尺度、不同深度的地震各向异性特征。对比不同方法研究川滇地区介质各向异性的特点,探讨了该地区的介质连续性及壳幔耦合状态。分析认为,地壳上地幔各向异性的差异表明,川滇地区具有复杂的地壳及上地幔形变机制。因此,对于川滇地区壳幔地震各向异性的深入理解,需在理论上和高密度数据资料基础上加强量化分析和综合研究。
        The seismic anisotropy characteristics of different tectonic scales and different depths are summarized through the analysis of body wave and surface wave data based on the existing seismic anisotropy results in the Sichuan-Yunnan area. We introduce the characteristics of medium anisotropy by comparing different methods. Then we analyze the continuity and coupling of crust and mantle. The difference of the seismic anisotropy between the crust and mantle can indicate various deformation mechanisms. Therefore,we propose that the seismic anisotropy in the crust and mantle of the Sichuan-Yunnan area should be studied more quantitatively and synthetically both in theory and high density data process.
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