豫西南铁佛寺地区钨多金属矿床控矿因素与成矿模式研究  

Study on Ore-controlling Factors and Metallogenic Models of Tungsten Polymetallic Deposits in the Tiefosi Area,Southwest Henan

作　　者：李军旗 杨林楠 王占峰 LI Junqi;YANG Linnan;WANG Zhanfeng(Henan First Geological Brigade Co.,Ltd.,Zhengzhou 450016,Henan,China)

机构地区：[1]河南省第一地质大队有限公司,河南郑州415016

出　　处：《中国钼业》2023年第4期28-35,共8页China Molybdenum Industry

基　　金：河南省国土资源厅省财政地质勘查项目(豫国土资发〔2016〕46号、豫国土资发〔2018〕22号)共同资助。

摘　　要：通过对铁佛寺地区钨多金属矿床成矿地质背景、矿床特征等综合分析,认为本区钨多金属矿矿床严格受地层、构造、岩浆岩控制,主要赋存于下古生界二郎坪群大庙组,后期SN向、NNW向构造与岩浆岩活动共同作用下在成矿有利部位富集沉淀而成;钨多金属矿在垂直空间上具有典型的低温—中温—高温的成矿物质组合特征;钨矿化多见于石英脉及裂隙硅质填充物中,浅部矿体钨品位相对低、厚度小,深部钨品位高、厚度大等特征。Based on the comprehensive analysis of the metallogenic geological background and deposit characteristics of tungsten polymetallic deposits in Tiefosi area,this paper believes that the tungsten polymetallic deposits in this area are strictly controlled by strata,structures and magmatic rocks,which mainly occur in the Damiao Formation of Erlangping Group of the Lower Paleozoic,and are formed by the accumulation and precipitation of SN and NNW trending structures and magmatic activities in the joint action of favorable metallogenic positions in the later period;Tungsten polymetallic deposits exhibit typical characteristics of low temperature-medium temperature-high temperature ore-forming material combinations in vertical space;Tungsten mineralization is commonly found in quartz veins and fractured siliceous fills.Shallow ore bodies have relatively low tungsten grade and small thickness,while deep ore bodies have high tungsten grade and large thickness.

关 键 词：铁佛寺 钨多金属矿 控矿因素 成矿模式 

分 类 号：P618.51[天文地球—矿床学]