摘要
通过本文研究,认为下扬子区推覆构造可分为NE、NNE及近EW走向三组。其主要类型有席状逆冲构造、侏罗山式褶皱推覆构造、楔状推覆构造及剪切褶皱逆冲构造等。推覆构造于印支末-燕山早期开始发育,一直可延续到喜山期,形成推覆构造的动力来源于库拉-太平洋板块对中国东部大陆的作用及其作用方式的改变以及郯庐断裂系的构造运动所施加的影响。
According to the research on nappe structures, the author considers that the nappes in Lower Yangtze River area can be divided into three groups with trends of NE, NNE, and EW respectively. The main kinds of the nappes are sheet thrust, Jurassian fold nappe, wedge-shaped nappe and shearing fold-thrust structure, etc. The nappe structures were formed in late Indo-Chinese epoch and early Yanshan epoch and might develop to Himalayan period. The dynamic force that made the nappe structures came from the action of Kula-Pacific plate to the continent of eastern china and the change of the action modes and the effect of tectonic movement of the Tancheng-Lujiang fault system.
出处
《中国矿业大学学报》
EI
CAS
CSCD
北大核心
1992年第1期43-50,共8页
Journal of China University of Mining & Technology
关键词
下扬子地区
推覆构造
演化
Lower Yangtze River area, nappe structure
