地球与行星物理论评(中英文)2026,Vol.57Issue(5):570-583,14.DOI:10.19975/j.dqyxx.2025-049
塔里木盆地与天山地区地震各向异性研究进展
Research progress on seismic anisotropy in the Tarim Basin and Tianshan region
摘要
Abstract
The Tarim Basin and the Tianshan region are the key interaction zones between the Central Asian orogenic belt and stable blocks,and are natural laboratories for studying the tectonic deformation of the continent,the coupling effect of basin-mountain and the seismic breeding mechanism of the continent.As an"indicator"of lithospheric deformation,seismic anisotropy can effectively reflect the regional tectonic stress field and deep material migration characteristics,which is of great scientific significance for revealing the coupling dynamics mechanism of basin-mountain in this region.In recent years,domestic and international scholars have systematically studied the seismic anisotropy characteristics from the crust to the upper mantle using seismological methods such as re-ceiver functions,shear wave splitting,and surface wave tomography.Research shows that there are significant spa-tial differences in crustal seismic anisotropy.Generally,the fast wave polarization directions in the Tarim Basin and the Tianshan region are consistent with the regional tectonic stress field and the strike of the Tianshan orogenic belt,which is mainly affected by the long-range effect of the Indian plate collision,the uplift of the Qinghai-Xizang Plateau,and the NS pushing action with the Tianshan Mountains.However,the fast wave polarization directions are dis-persed in local areas,and the anisotropic characteristics in regions such as Atushi,Wushi and Keping exhibit a cer-tain degree of complexity,which may be related to stress disturbances caused by local faults.The anisotropic fea-tures of the upper mantle are not entirely consistent with those of the crust,and the vertical coherence of lithospheric deformation requires further investigation.Although scholars at home and abroad have made the above progress in the field of seismic anisotropy,the spatial distribution characteristics and dynamic mechanism of seismic aniso-tropy have not yet reached a unified discussion,and a large number of geophysical observations are still needed to deepen the relationship between seismic anisotropy and tectonic deformation and seismic activity,so as to provide more reliable deep dynamic constraints for regional seismic risk assessment.关键词
塔里木盆地/天山/地震各向异性/动力学机制Key words
Tarim Basin/Tianshan Mountains/seismic anisotropy/dynamic mechanism分类
天文与地球科学引用本文复制引用
苏泰金,吴华,琚长辉,赵俊猛,胡森,滕俊哲,朱康成,孔玉忠..塔里木盆地与天山地区地震各向异性研究进展[J].地球与行星物理论评(中英文),2026,57(5):570-583,14.基金项目
国家自然科学基金资助项目(42230307) Supported by the National Natural Science Foundation of China(Grant No.42230307) (42230307)