青藏高原东南缘壳幔结构探测研究新进展  

New Research Progress on Crust-upper Mantle Structure in the Southeastern Margin of Qinghai-Tibet Plateau,China

作　　者：李秋生[1] 酆少英[2] 白志明[3] 高原[4] 高嵩[5] 熊小松[6] 王晓冉 郎超 韩如冰 吴庆宇 卢占武[1] 王海燕[1] 李文辉[1] 张洪双[1] 张新彦[1] LI Qiu-sheng;FENG Shao-ying;BAI Zhi-ming;GAO Yuan;GAO Song;XIONG Xiao-song;WANG Xiao-ran;LANG Chao;HAN Ru-bing;WU Qing-yu;LU Zhan-wu;WANG Hai-yan;LI Wen-hui;ZHANG Hong-shuang;ZHANG Xin-yan(Key Laboratory of Deep-earth Dynamics（Building）of Ministry of Nature Resources,Institute of Geology,Chinese Academy of Geological Sciences,Beijing 100037,China;Geophysical Exploration Center,China Earthquake Administration,Zhengzhou 450002,Henan,China;Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing 100029,China;Institute of Earthquake Forecasting,China Earthquake Administration,Beijing 100036,China;College of Information Science and Technology,Chengdu University of Technology,Chengdu 610059,Sichuan,China;SinoProbe Center-China Deep Exploration Center,Chinese Academy of Geological Sciences,Beijing 100037,China)

机构地区：[1]中国地质科学院地质研究所自然资源部深地动力学实验室(建),北京100037 [2]中国地震局地球物理勘探中心,河南郑州450002 [3]中国科学院地质与地球物理研究所,北京100029 [4]中国地震局地震预测研究所,北京100036 [5]成都理工大学信息科学与技术学院,四川成都610059 [6]中国地质科学院地球深部探测中心,北京100037

出　　处：《地球科学与环境学报》2018年第6期757-778,共22页Journal of Earth Sciences and Environment

基　　金：国家重点研发计划项目(2016YFC0600302);国家自然科学基金项目(41574092;41430213;41590863);中国地质调查局地质调查项目(DD20189629;DD20179354)

摘　　要：青藏高原东南缘的岩石圈变形特征和动力学过程显著不同于以正向碰撞为主要形式的青藏高原本体。其变形样式在地壳浅部以侧向滑移为主,并伴随一系列尚待揭示的深部过程。毫无疑问,青藏高原东南缘的岩石圈结构探测研究是理解青藏高原碰撞造山、深部动力学过程不可或缺的重要环节。而揭示与侧向碰撞变形的深部过程相伴生的成矿带的岩石圈三维结构和深部动力学背景,对大陆碰撞成矿理论框架的完整性至为关键。通过对青藏高原东南缘的壳幔结构探测研究成果和基本认识进行了较系统的梳理,重点介绍青藏高原东南缘及邻区深部结构地震学探测研究近十几年的新进展、新认识,主要涉及壳幔结构的天然地震成像、人工源地震探测剖面和深部动力学等研究方向,供对青藏高原地学研究感兴趣的地质科研人员参考。The deformation feature and dynamic processes of the lithosphere in the southeastern margin of Qinghai-Tibet Plateau are significantly different from the principal part of the plateau, where forward collision is taking as the main form. The deformation patterns of the lithosphere in southeastern margin of Qinghai-Tibet Plateau are mainly characterized by lateral slip on the shallow crust, and accompanied by a series of deep processes to be revealed. Undoubtedly, the exploration and study of lithospheric structure in the southeastern margin of Qinghai-Tibet Plateau are indispensable to understand the deep dynamic process and collisional orogeny of Qinghai-Tibet Plateau. It is crucial to reveal the three-dimensional structure of the lithosphere and deep dynamic background of metallogenic zone associated with the deep process of lateral collision deformation for the integrity of the theoretical framework of continental collision orogeny and mineralization. The research results and basic knowledge of crust-upper mantle structure detection in the southeastern margin of Qinghai-Tibet Plateau are systematically sorted out, the recent progress and new understanding of deep structural seismic exploration in the southeastern margin of Qinghai-Tibet Plateau and its adjacent areas during recent decades are emphatically introduced, mainly in natural seismic imaging, artificial seismic profile and deep dynamics of the crust-upper mantle structure, which can be used as a reference for researchers interested in geosciences of Qinghai-Tibet Plateau.

关 键 词：壳幔结构 地震学 深部动力学 地震成像 剖面探测 大陆碰撞造山 三江成矿带 青藏高原 

分 类 号：P315.2[天文地球—地震学]