TECTONIC SETTINGS AND METALLOGENISM OF THE EASTERN SEGMENT OF THE QIN-HANG BELT, SOUTH CHINA
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摘要: 钦杭结合带是中国华南重要的多金属成矿带,位于扬子地块与华夏地块结合部,北西以景德镇-湘潭-凭详深断裂带为界与扬子地块相邻,南东与华夏地块的边界为绍兴-萍乡-北海深断裂。在其漫长的地史时期主要经历了晋宁、加里东、印支、燕山构造运动,依次经历了洋壳俯冲与陆-陆碰撞、聚合造山、统一华南陆块形成、陆内强烈褶皱变形、燕山期地块活化、中生代大规模岩浆岩侵入与喷发、陆内成盆等发展阶段,导致钦杭结合带内存在有特征各异、形成时代不同的多期多种矿床集中出现。不同期次和特征的构造运动控制着相应的成矿作用,其中燕山期是钦杭结合带的成矿高峰期。Abstract: The Qin-Hang Belt, an important metallogenic belt in South China, is situated in the junction of the Yangtze Block and the Cathaysia Block, bounded by the Jingdezhen-Xiangtan-Pingxiang Deep Fault Zone to the northwest of the Yangtze block and the Shaoxing-Xiangping-Beihai Deep Fault Zone to the southeast of Cathaysia Block.It has experienced the Jinning, Caledonian, Indosinian and Yanshanian movements successively, and suffered from oceanic subduction,continent-continent collision, formation of the South China Block, intensive intracontinental folding, Yanshanian reactivation, large-scale Mesozoic magmatism and formation of intracontinental basins.Various mineral deposits controlled by correspondent structural patterns were formed in the belt in different periods, especially the Yanshanian Period.
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Key words:
- the Qin-Hang Belt /
- tectonic evolution /
- metallogenism /
- Yanshanian
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