安徽五河方庵金矿控矿条件和区域找矿方向研究  

Ore-controlling conditions of gold deposits and prospecting direction in the Fang’an area,Wuhe County,Anhui Province

作　　者：何家国 HE Jiaguo(Institute of Exploration Technology of Anhui Province(Energy Exploration Center,Bureau of Geology and Mineral Exploration of Anhui Province),Hefei,Anhui 230031,China)

机构地区：[1]安徽省勘查技术院(安徽省地质矿产勘查局能源勘查中心),安徽合肥230031

出　　处：《安徽地质》2024年第4期296-299,共4页Geology of Anhui

基　　金：安徽省公益性地质工作项目“皖东五河—凤阳矿集区三维综合探测与深部金、铅锌多金属成矿预测”(编号:2022-g-2-4)资助。

摘　　要：五河地区是我省重要的金成矿区带,近年来在该区发现多个中、小型金矿床,显示其较好的找矿前景。但五河地区多为覆盖区,基岩露头较少,找矿难度较大。方庵金矿是2020年在五河地区新发现的一个小型金矿,本文在分析方庵金矿矿化地质特征的基础上,总结了控矿条件,结合五河地区金矿床的成矿规律,认为北东-北北东向断裂构造是五河地区石英脉型及构造蚀变岩型金矿的主要控矿因素。提出通过磁异常梯级带寻找隐伏的北东-北北东向断裂构造,是本区未来重要的找矿方向,同时也需要加大对深部可能存在的金矿体的探索。In recent years,a number of small-and medium-sized gold deposits have been found in the Wuhe area,an important gold mineralization zone in Anhui Province,showing a good prospect for further discovery.However,it is an area of widespread overburden,where bedrocks rarely outcrop,adding to the difficulty in mineral exploration.The Fang’an gold deposit is a small one unveiled in the area in 2020.After analyzing its mineralization and geological characteristics,this paper summarizes its ore-controlling conditions.With the mineralization laws of gold deposits in the area being taken into consideration,it is suggested that the NE-NNE trending fault structure has a dominant control over the quartz vein type and structurally altered rock type gold deposits.Magnetic anomaly gradient zone may be used to find the concealed fault zone for mineral exploration in the future.At the same time,efforts shall be made to explore gold deposits in the deep-seated area.

关 键 词：覆盖区 方庵金矿 控矿条件 磁异常 找矿方向 

分 类 号：P611[天文地球—矿床学]