黔东南剪切带金矿的分布规律与成矿模式  

Distribution Laws and Metallogenic Models for the Gold Deposits in the Shear Zone of Southeastern Guizhou

作　　者：杨光忠[1] 

机构地区：[1]中国地质大学研究生院

出　　处：《贵州地质》2005年第4期236-241,共6页Guizhou Geology

摘　　要：根据地质勘查资料对黔东南地区金矿的成矿地质背景条件进行了综合研究,认为该区金矿的成矿作用过程与剪切构造作用有关;指出隐伏东西向构造控制着矿田成矿田级矿化区的分布,北东～北北东向等构造与东西向构造的交汇控制着矿床的分布,褶皱加断裂组合的脆性构造变形主要控制脉型金矿的产出,中深部过渡型剪切变形则控制着细脉、网脉状金矿;探讨了金成矿作用的时空演化,进而建立了该区剪切带金矿的成矿模式.Basing on comprehensive studies for metallogenic background terms of the gold deposits in the southwestern Guizhou, the minerogenesis of gold deposit is considered being associated to the shearing structure ; the mineralized zones at level of mining field are dominated by blind EW-striking structure and the deposits are dominated by the joints of the NE-NNE and EW structures in distribution, vein-type gold deposit in yield is under control of brittle structural deformation assembly of the folds and faults, the fine-grain and workstock gold deposits are mastered by the medium-deep transition-type shearing deformation ; spatial evolution in gold mineralization is treated of, further the minerogenic model is established for the gold deposits at the shearing belts, which possesses of theoretical and practical significances.

关 键 词：金矿 剪切构造 分布规律 成矿模式 黔东南 

分 类 号：P618.51[天文地球—矿床学]