华南南华纪一二叠纪沉积大地构造演化  

Sedimentary and Tectonic Evolution of Nanhuan-Permian in South China

作　　者：何卫红[1] 唐婷婷[2] 乐明亮[3] 邓晋福[4] 潘桂棠[5] 邢光福[6] 骆满生[1] 徐亚东[3] 韦一[3] 张宗言[3,6] 肖异凡 张克信[1] 

机构地区：[1]中国地质大学生物地质与环境地质国家重点实验室,湖北武汉430074 [2]中国地质大学地质调查研究院,湖北武汉430074 [3]中国地质大学地球科学学院,湖北武汉430074 [4]中国地质大学地质过程与矿产资源国家重点实验室,北京100083 [5]成都地质矿产研究所,四川成都610082 [6]南京地质矿产研究所,江苏南京210016

出　　处：《地球科学（中国地质大学学报）》2014年第8期929-953,共25页Earth Science-Journal of China University of Geosciences

基　　金：中国地质调查局项目(Nos.1212011220529;1212010733802;12120113012500)

摘　　要：通过对华南扬子陆块和华夏增生体两大构造单元南华纪-二叠纪7条综合性剖面岩性、岩相、地层厚度、沉积环境、变形与变质作用的对比研究,以及对扬子陆块南缘以及华夏增生体具有指相意义(与洋壳相关)的岩石组合的系统总结与分析,以地层区和分区为单位对盆地原型进行了初步划分,在此基础上讨论了华南地区南华纪-二叠纪盆地和构造演化的基本规律,总结出构造演化的发展阶段,揭示了扬子陆块与华夏增生体沿江绍-郴州-钦防北东段碰撞对接的时间发生在早古生代末,西南段碰撞对接的时间相对较晚,可能发生在二叠纪末.This paper firstly analyzes the lithological features,the thickness of sequence,metamorphical features and the sedi-mentary environment of seven Nanhuan-Permian combined sections from South China,then analyzes the petrological assembla-ges including ophiolites,basalts,island arc igneous and the TTG-GG suites （granites）from the area of south margin of Yan-gtze continental block and the area of Cathay accreting block and lastly analyzes the basin features based on the lithology of each unit （formation）from South China.Based on the above-mentioned analyses,four stages of tectonic evolution of South China are identified and it is concluded that the collision between the Yangtze continental block and Cathay accreting block occurred at the end of the Early Paleozoic along the northeastern part and the collision along the southwestern part occurred at the end of the Permian.

关 键 词：南华纪-二叠纪 扬子陆块 华夏增生体 沉积 构造 

分 类 号：P54[天文地球—构造地质学]