贵州浅层构造变形与成矿

Shallow Tectonic Deformation and Mineralization in Guizhou

贵州省处于上扬子陆块,新元古代至今经历了多次造山作用,形成当今的贵州浅层地壳变形图像,是相关热液矿产形成的重要条件之一。本文在四级构造单元划分基础上,进行了贵州构造变形区划分,对主要浅层构造变形类型的区域地质特征及成矿地质背景进行了系统总结,并对其与成矿的关系尤其是与浅成中—低温热液矿产的关系进行了系统研究。结果表明,贵州省各构造变形分区在地质构造方向、褶皱组合型式和地质作用(包含成矿作用)类型及特征等方面具有明显差异,成矿地质背景千差万别,从而导致了成矿集中区矿产组合各有不同。上述研究成果,为《中国矿产地质志·贵州卷》志书、1∶50万贵州省矿产图和贵州省成矿规律图的编制奠定了基础,同时对将来贵州省矿床地质研究与区域找矿、地质矿产勘查及研究都具有重要指导意义。

Guizhou province is located in the Upper Yangtze landmass and has experienced several orogeny since Neoproterozoic.The formation of shallow crustal deformation images in Guizhou is one of the important conditions for the formation of related hydrothermal minerals.In this paper,based on the division of quaternary tectonic units,it divides the tectonic deformation areas in Guizhou province,systematically summarizes the regional geological characteristics and metallogenic geological background of the main shallow tectonic deformation types,and systematically studies the relationship between them and mineralization,especially the relationship between them and the shallow medium-low temperature hydrothermal minerals.The results show that the tectonic deformation zones in Guizhou province have obvious differences in the direction of geological structure,fold association patterns,types and characteristics of geological processes(including mineralization),and the geological backgrounds of mineralization are very different,which leads to the different mineral associations in the concentrated ore-forming areas.The above research results have laid a foundation for the compilation of the‘Geology of Mineral Resources of China Guizhou Volume’,1∶500,000 Guizhou mineral map and Guizhou metallogenic regularity map,and have important guiding significance for the future study of mineral deposit geology and regional prospecting,geological mineral exploration and research of Guizhou Province.