安徽宁国瓦窑坪矿区萤石矿地质特征与成矿条件分析

Geological Characteristics and Mineralization Conditions of Fluorite Deposit in Wayaoping Mining Area,Ningguo,Anhui Province

安徽省宁国瓦窑坪萤石矿为中、低温热液充填型矿床,矿床规模中型。通过对矿区地质背景、矿区地质特征和矿体地质特征的研究,确定了该区地层、构造、岩浆岩、围岩蚀变与成矿的关系;本项目以该区萤石矿体作为研究对象,以NE向、EW向断裂为主要特征,对矿区萤石矿空间起到了控制作用,这两组断层是萤石矿液运移和储存空间,西部两组断裂汇合处为进一步找矿有利部位。

The fluorite mine at Wayaoping in Ningguo,Anhui Province,is identified as a mesothermal and hypothermal hydrothermal fill-ing-type deposit of medium scale.This study investigates the geological context of the mining area,as well as the geological and ore characteristics within the mine.It establishes the relationships between the stratigraphy,tectonics,magmatic rocks,and the hydrothermal alteration of the surround-ing rocks in relation to ore formation.Focusing on the fluorite ore bodies in this area,the research highlights the dominance of NE-and EW-orient-ed fractures,which play a crucial role in controlling the spatial distribution of the fluorite ores in the mine.These fault systems serve as the primary pathways for the migration and storage of ore-forming fluids,with the intersection of these faults in the western part of the mine presenting a promis-ing target for further exploration.