黔西南赖子山背斜地区金矿构造控矿规律研究

Study on the regularity of tectonic control of gold deposits in Laizishan anticline area of Southwest Guizhou

赖子山背斜地区是贵州册亨—望谟金矿集区的重要组成部分,该地区已发现一处超大型金矿床和多处小型金矿床或金矿点,目前该区仍然具有很好的找矿前景。通过系统总结地质特征和金矿构造控矿规律,认为赖子山背斜地区具有明显的三级构造控矿特点,深源成矿流体的运移及富集与三级构造的关系密切,晚古生代的隐伏同生断裂+区域性赖子山背斜、层间滑脱构造+矿床级的断裂、褶皱组成的构造系统对金矿的形成具有明显的控制作用,并建立了赖子山背斜地区的构造控矿模式。

The Laizishan anticline area is an important part of the Ceheng-Wangmo high gold concentration area in Guizhou province.In the area,a super large gold deposit and many small gold deposits and gold spots are dis-covered.At present,the area still has a good prospecting prospect.This paper systematically summarizes the geological features and tectonic ore control law and points out that Laizishan anticline area has obvious three-stage tectonic ore control characteristics,and that the migration and enrichment of deep-sourced ore-forming fluids are closely related to the three-stage tectonics.The tectonic system composed of hidden syngenetic faults of late Paleozoic+regional Laizishan anticline,interlaminar slip structure+mineral-grade faults and folds has an obvious control effect on gold deposit formation.The study established the ore-controlling model of the Laizishan anticline area.