都龙铜街—曼家寨矿区地质构造解析及构造控矿作用  

Geological structure analysis and structural ore control in Dulong Tongjie Manjiazhai mining area

作　　者：苏剑 SU Jian(Yunnan Hualian zinc indium Co.,Ltd,Wenshan 663701,China)

机构地区：[1]云南华联锌铟股份有限公司,云南文山663701

出　　处：《世界有色金属》2022年第5期91-93,共3页World Nonferrous Metals

摘　　要：都龙铜街-曼家寨矿区是我国现有矿产资源赋存量较高的大型矿区之一,为了提高矿产资源的产出量与保有量,开展曼家寨矿区地质构造解析及构造控矿作用的研究。综合勘查结果与历史数据,分析曼家寨矿区地质概况;提出矿区中最为显著的地质构造为老君山复式背斜构造,在背斜的两端存在倾斜角倾斜趋势;矿区内褶皱构造位于背斜构造的西翼,呈现“南向北”分布方式,在剖面上存在起伏;断裂构造展布于新寨-南捞-花石头-曼家寨-南当厂一线,属于田蓬组片岩、大理岩与冲庄组片麻岩之间的环形剥离断层系,主要控矿构造为F0~F4。从矿源沉积阶段、岩石变质阶段、岩浆叠加阶段三个阶段,阐述矿区地质构造控矿作用,为矿区内资源的富集与沉积提供理论依据。Dulong Tongjie Manjiazhai mining area is one of the large mining areas with high existing mineral resources in China.In order to improve the output and retention of mineral resources,the geological structure analysis and structural ore control of Manjiazhai mining area are carried out.Analyze the geological situation of Manjiazhai mining area based on the exploration results and historical data;It is proposed that the most prominent geological structure in the mining area is Laojunshan compound anticline structure,and there is an inclination angle inclination trend at both ends of the anticline;The fold structure in the mining area is located in the West Wing of the anticline structure,showing a"South-to-North"distribution,with ups and downs on the section;The fault structure is distributed in the line of Xinzhai Nanlao Huashitou Manjiazhai nandangchang.It belongs to the annular stripping fault system between Tianpeng formation schist,marble and chongzhuang formation gneiss.The main ore controlling structures are F0~F4.This paper expounds the ore controlling effect of geological structure in the mining area from three stages:source sedimentation stage,rock metamorphism stage and magmatic superposition stage,so as to provide a theoretical basis for the enrichment and deposition of resources in the mining area.

关 键 词：都龙铜街 曼家寨矿区 地质构造 控矿作用 背斜构造 褶皱构造 

分 类 号：P613[天文地球—矿床学]