秦岭—大别陆内造山带构造特征及抽拉构造造山模式  

The structural characteristics of Qinling intra-continental orogenic belt and its Choula(drawing-out)tectonic orogenic model

作　　者：杨志华[1,2] 晁会霞[1,2] 吴旭[1] 王北颖 

机构地区：[1]长安大学地球科学与资源学院,陕西西安710054 [2]国土资源部岩浆作用成矿与找矿重点实验室,陕西西安710054 [3]陕西省地质调查院,陕西西安710065

出　　处：《地学前缘》2016年第4期63-71,共9页Earth Science Frontiers

基　　金：原地质矿产部秦巴项目(85-01-018);国家自然科学基金项目(49272136);国家计委资助项目(96-30-437);国家科委资助项目(96-914-01-04);中石化项目"南秦岭-川鄂北缘早古生代岩相古地理和构造研究"(2009);中国地调局武汉地调中心资助项目"武当-桐柏-大别成矿带区域构造演化与成矿作用研究"(2012)

摘　　要：秦岭造山带是横贯我国中部著名的大陆造山带,是大陆构造中典型的陆内造山带。这种类型的造山带没有经历洋壳俯冲形成的那种主缝合带性质的造山带;也不是华北与扬子"板块"相互作用形成的对接或碰撞造山带;更不是所谓的复合型造山带。从秦岭造山带的组成、不同深度的结构特征、立交桥构造、盆-山转换中的结构样式、商丹带与勉略带的构造特征以及中央造山系(秦岭)中独特的南北向构造,深入讨论这些特征在秦岭造山带中的非板块构造属性;综合分析这些资料的基础上,建立了秦岭陆内造山带形成的抽拉-逆冲岩片构造(抽拉构造)模式。Qinling orogenic belt is a famous orogenic belt in central China,and it is also a typical intracontinental orogenic belt of continental tectonics.This type of orogenic belt did not undergo subduction of ocean crust to form such orogenic belt with main suture zone.It is not the collision orogenic belt that formed by the interaction between North China plate and Yangtz plate,and also not so-called composite orogenic belt.According to the composition,structural characteristics of different depth,cross-bridge structure,structural style in the transformation of basin and mountain,the structural characteristics of Shangxian-Danfeng tectonic zone and Mianxian-Lueyang tectonic zone as well as the distinct north-south direction structures in the central orogenic system（Qinling）,the non-plate features of these characteristics are discussed.On the basis of above discussion,the thrust-Choula（or Choula）tectonic model for the formation of Qinling intra-continental orogenic belt is built.

关 键 词：陆内造山带 结构特征 盆-山转换 立交桥构造 南北向与东西向构造 抽拉构造 中国秦岭 

分 类 号：P542[天文地球—构造地质学]