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论长江中下游成矿动力学
投稿时间:2011-05-16  修订日期:2011-05-16  点此下载全文
引用本文:董树文,马立成,刘刚,薛怀民,施炜,李建华.2011.论长江中下游成矿动力学[J].地质学报,85(5):612-625.
dong Shu wen,ma li cheng,Liu gang,xue huai ming,shi wei,li jian hua.2011.On Dynamics of the Metallogenic Belt of Middle-Lower Yangtze River ,eastern China[J].Acta Geologica Sinica,85(5):612-625.
DOI:
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作者单位E-mail
董树文 中国地质科学院 swdong@cags.ac.cn 
马立成 中国地质科学地质力学研究所  
刘刚 中国地质科学院  
薛怀民 中国地质科学院地质所  
施炜 中国地质科学院地质力学所  
李建华 中国地质科学院地质力学研究所  
基金项目:深部探测技术与实验研究专项(Sinoprobe)
中文摘要:长江中下游是我国东中部著名的中生代金属成矿带,更是长江工业走廊的矿物供应基地,素称工业摇篮。从地质演化和成矿动力学角度,长江中下游成矿带在我国、甚至世界上具有鲜明的特色。首先,成矿大地构造背景和过程经历了由板缘到板内的环境,成矿作用发生在挤压向伸展的转换过程;其次,成岩成矿受基底构造和深部作用控制、与特有的基底有关;最后,长江中下游成矿作用贯穿于“燕山运动” 的始终,深刻地记录了太平洋板块作用的影响。本文对上述重大问题提出粗浅的见解,供讨论。
中文关键词:板缘;板内  前陆带;构造转换;成矿作用;深部过程;基底构造;印支运动;燕山运动;晚侏罗纪;早白垩纪;长江中下游
 
On Dynamics of the Metallogenic Belt of Middle-Lower Yangtze River ,eastern China
Author NameAffiliationE-mail
dong Shu wen Chinese Academy of Geological Sciences swdong@cags.ac.cn 
ma li cheng Institute of Geomechanics, Chinese Academy of Geological Sciences  
Liu gang Chinese Academy of Geological Sciences  
xue huai ming Institute of Geology, Chinese Academy of Geological Sciences  
shi wei Institute of Geomechanics, Chinese Academy of Geological Sciences  
li jian hua Institute of Geomechanics, Chinese Academy of Geological Sciences  
Abstract:The Middle Lower Reaches of Yangtze River is a well-known Mesozoic metallogenic belt in central eastern China, which has been the key base of mineral supply for the Yangtze industry corridor, and then is nicknamed The Industry Cradle. In view of geological evolution and metallogenic dynamics, the Middle Lower Yangtze metallogenic belt has its own distinguishing features in China, even in the world. Firstly, the tectonic background and processes had experienced the environments from plate margin to intra plate during T2-J2, and mineralization occurred in transformation from compression to extension (145~130 Ma). Secondly, diagenesis and mineralization in the belt were controlled by base structure and deep process, and related to its own basement. In conclusion, the Middle Lower Yangtze mineralization had occurred through the whole Yanshanian epoch (165~120Ma) and distinctly recorded the imprint of subduction of Pacific Plate during Late Jurassic to Early Cretaceous.
keywords:plate margin  intra-plate  foreland belt  tectonic transition  mineral concentration  deep process  basement  Indochinian  Yanshanian  late Jurassic  early Cretaceous  middle to lower reacher of Yangtze River
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