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中国地壳结构构造与形成过程:来自构造变形的约束
(中国地质科学院地质研究所, 北京 100037)
CRUSTAL TECTONIC FRAMEWORK OF CHINA AND ITS FORMATION PROCESSES: CONSTRAINTS FROM STUCTURAL DEFORMATION
(Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037, China)
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投稿时间:2019-08-29    修订日期:2019-09-28
中文摘要: 中国地壳结构构造与形成过程,一直是地质界关注的重大地质构造问题。然而已有研究主要侧重于构造单元划分和构造演化,而对各个构造单元构造变形以及相互之间的构造关系,没有给予足够重视。文章基于对已有资料的综合研究和笔者研究积累,分析和总结了华南、华北、东北、西北、青藏高原和苏鲁-大别-秦岭等地区的构造变形特征与地壳结构构造,根据构造变形特征,结合其他方面的资料,提出松辽盆地两侧构造单元可以对比连接,东准噶尔与西准噶尔以及东天山与西天山构造单元分别属于不同古陆的增生边缘不应该对比连接,牡丹江缝合带不存在,以及中国东部发育两个方向的隆起-坳陷构造等新认识。基于不同时代构造变形特征,对华北古陆基底结构和形成时代、塔里木和扬子古陆基底形成时代、古生代至三叠纪中国大陆主体聚合过程以及侏罗纪以来中国东部构造变形对已有构造的叠加改造和现今中国地壳结构构造最终形成,进行了初步讨论。
Abstract:The crustal tectonic framework of China with its formation and evolution has been a major issue for geological field. However, almost all the available studies on this issue focus on tectonic division and evolution, but very few attentions are given to the deformation features and structural relation of various tectonic units in China. On the basis of comprehensive study of the existing data and the authors' research, this paper analyzes and summarizes the structural deformation and crustal tectonic framework of various regions such as South China, North China, Northeast China, Northwest China, Qinghai-Tibet plateau and Sulu-Dabie-Qinling, discusses tectonic division of some regions and put forward some new ideas which includes that there are same tectonic units on the two sides of the Songliao basin could be divided and correlated; that tectonic units in the West Junggar region were parts of the Kazakhstan paleoplate, and the ones in the East Junggar and northern East Tianshan belonged to the accretionary margins of Siberian Paleoplate; that the so-called Mudanjiang suture is not proved by available geological data; and that there are nearly EW- and NW-extended uplifts and depressions besides previous NNE-extensional ones in East China. And then, based on structural data, it briefly probes into the basement framework and formation age of North China craton, the formational age of the Yangtze and Tarim basements, amalgamation of North China, Yangtze and Tarim cratons and some other smaller blocks from Early Paleozoic through Triassic, Jurassic to Cenozoic, superposition and reworking of tectonic deformation in eastern China since Jurassic on the existing structures, and the formation of the current crustal tectonic framework of China
文章编号:     中图分类号:P542    文献标志码:
基金项目:国家重点研发计划项目(2017YFC0601301);中国地质调查项目(DD20190004,1212010733802,1212011121036,1212011121064)
引用文本:
李锦轶,张进,刘建峰,曲军锋,郑荣国,赵硕,王励嘉,张晓卫.中国地壳结构构造与形成过程:来自构造变形的约束[J].地质力学学报,2019,25(5):678-698DOI:10.12090/j.issn.1006-6616.2019.25.05.061
LI Jinyi,ZHANG Jin,LIU Jianfeng,QU Junfeng,ZHENG Rongguo,ZHAO Shuo,WANG Lijia,ZHANG Xiaowei.CRUSTAL TECTONIC FRAMEWORK OF CHINA AND ITS FORMATION PROCESSES: CONSTRAINTS FROM STUCTURAL DEFORMATION[J].,2019,25(5):678-698DOI:10.12090/j.issn.1006-6616.2019.25.05.061

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