长江中下游中生代构造岩相体系分布与成矿规律——新华夏构造体系的“长江式”构造研究  

Distribution of Mesozoic Tectono-Facies System and Metallogeny in Middle and Lower Reaches of the Yangtze River——Research on Yangtze River-Type Tectonics in the Neocathaysian Structural System

作　　者：吕古贤[1,2] 曹钟清 郭涛[1] 申玉科[1] 杨兴科[2] 张迎春[4] 

机构地区：[1]中国地质科学院地质力学研究所,北京100081 [2]长安大学地球科学与资源学院,陕西西安710054 [3]赣西北地质大队,江西九江332000 [4]中国地质大学(北京)地球科学与资源学院,北京100081

出　　处：《大地构造与成矿学》2011年第4期495-501,共7页Geotectonica et Metallogenia

基　　金：中国地质调查局地质大调查项目"长江中下游基底构造与导矿-控矿要素研究"(编号:1212016813051);国家自然科学基金项目(批准号:40972061)

摘　　要：构造分布及演化综合研究显示,长江中下游地区具中生代新华夏构造岩相体系控岩控矿特征,新华夏构造岩相体系主干构造是NNE向的大型褶皱和剪切挤压断裂带,均呈左行斜列分布;发育两组扭性剪切构造,被前人分别称为NEE向泰山式和NNW向大义山式构造;与之相伴的NWW向构造发育且对岩浆活动和内生矿产具有重要的控制作用。本文将"武汉-九江-德兴NWW向深断裂构造岩浆岩带"称为"长江式构造",归为新华夏系挤压带的横张构造成分。在中国东部,李四光所倡导的新华夏构造体系得到了新的证实和研究。Synthetical analysis of the distribution and evolution of tectonics reveals that the Neocathaysian tectono-facies system controls the distribution of rocks and ore deposits in Mesozoic in the middle and lower reaches of the Yangtze River.The main tectonics of Neocathaysian tectono-facies system are large-scale NNE-trending folds and shearing compressive fault belt,distributing in left echelon,with two corresponding wrench shear structure,whose predecessors called Taishan-type and Dayishan-type tectonic belt,accompanied with NWW-trending structure delelopping well in the Yangtze River Basin,which has significant control on magmatic activity and endogenic deposits.Therefore,in this paper,the Wuhan-Jiujiang-Dexing NWW trending deep structural belt is called Yangtze River-type structure,which belongs to the Neocathaysian transversely tensioned structure of compressive zone.

关 键 词：长江式构造 长江中下游地区 新华夏构造岩相体系 构造控岩控矿 

分 类 号：P552[天文地球—构造地质学] P612[天文地球—地质学]