安徽郎岭湾金矿伊利石结晶度特征对矿床勘查的指示  

Illite crystallinity as an indicator in the exploration of the Langlingwan gold deposit in Anhui

作　　者：马涛[1] 施珂 王世伟 张振 万秋 李孜腾 MA Tao;SHI Ke;WANG Shiwei;ZHANG Zhen;WAN Qiu;LI Ziteng(Geological Survey of Anhui Province(Institute of Geological Sciences of Anhui Province),Technology Innovation Center for Deep Mineral Exploration Engineering in Overburden Area,MNR,Hefei,Anhui 230001,China;School of Earth and Environment,Anhui University of Science and Technology,Huainan,Anhui 232001,China;Hefei University of Technology,Hefei,Anhui 230009,China;No.313 Unit,Bureau of Geology and Mineral Exploration of Anhui Province,Lu’an,Anhui 237000,China;Bureau of Geology and Mineral Exploration of Anhui Province,Hefei,Anhui 230001,China)

机构地区：[1]安徽省地质调查院(安徽省地质科学研究所),自然资源部覆盖区深部资源勘查工程技术创新中心,安徽合肥230001 [2]安徽理工大学地球与环境学院,安徽淮南232001 [3]合肥工业大学,安徽合肥230009 [4]安徽省地质矿产勘查局313地质队,安徽六安237000 [5]安徽省地质矿产勘查局,安徽合肥230001

出　　处：《安徽地质》2025年第1期6-9,共4页Geology of Anhui

基　　金：安徽省重点研发-国际合作专项“霍山-晓天盆地岩浆热液矿床地球化学勘查标志体系研究”(编号:202104b11020018);安徽省自然科学基金项目“蚌埠隆起区新类型金矿成矿机制研究——来自矿物微区分析的制约”(编号:2208085QD111)联合资助。

摘　　要：郎岭湾金矿为磨子潭-晓天火山岩盆地内的浅成低温热液型金矿。对郎岭湾金矿伊利石结晶度(IC值)的分析表明,未矿化区域伊利石IC值为0.4°Δ2θ~1.2°Δ2θ,金矿化区域伊利石IC值为1.2°Δ2θ~2.0°Δ2θ。远离矿化区域,伊利石IC值总体上呈下降趋势。岩石中伊利石IC值与金矿化存在明显的相关关系,具备成为金矿找矿勘查标志的潜力。The Langlingwan gold deposit is an epithermal gold deposit located in the Mozitan-Xiaotian volcanic basin.The analysis of the illite crystallinity(IC)values of the Langlingwan gold deposit indicates that the IC values are concentrated in the range of 0.4°Δ2θto 1.2°Δ2θin the non-mineralized area,and 1.2°Δ2θto 2.0°Δ2θin the gold-mineralized area.Away from the mineralized area,the IC values show the trend of decline.The IC values that clearly relate to gold mineralization in rocks may serve as an indicator for gold exploration.

关 键 词：郎岭湾金矿 伊利石矿物结晶度 勘查标志 

分 类 号：P612[天文地球—矿床学]