河南栾川三道沟铅锌银矿地质特征及成因分析  

Geological feature and genesis of Sandaogou Pb-Zn-Ag depositin Luanchuan County of Henan

作　　者：沈瑞峰 王建统 王振强 张旭晃 胡亚净 SHEN Ruifeng;WANG Jiantong;WANG Zhenqiang;ZHANG Xuhuang;HU Yajin(The First Geological Survey Institute of Mineral Resources,Henan Bureau o f Geo-Exploration and Mineral Development,Luoyang 471023,Henan,China;Key Laboratory of Gold and Silver Polymetallic Ore-forming Series and Deep Prediction of Henan,Luoyang 471023,Henan,China;Luanchuan County Bureau of Geology and Mineral Resources,Luanchuan 471500,Henan,China)

机构地区：[1]河南省地质矿产勘查开发局第一地质矿产调查院,河南洛阳471023 [2]河南省金银多金属成矿系列与深部预测重点实验室,河南洛阳471023 [3]栾川县地质矿产局,河南栾川471500

出　　处：《矿产与地质》2022年第1期34-39,共6页Mineral Resources and Geology

基　　金：河南省财政地质勘查项目“河南省栾川县三道沟银多金属矿预查”(豫财招标采购2020-138-11)项目资助。

摘　　要：河南省栾川县三道沟矿区发现了5条规模较大的铅锌银含矿带,为一组NE向平行断裂,长度为300~1300 m,具有延伸长、产状和厚度稳定、铅锌银多金属矿化的特征,显示出三道沟矿区具有较大的找矿潜力。根据矿区地质和地球化学特征,结合矿石的矿物共生组合、流体包裹体特征、同位素组成及成矿年龄,认为三道沟铅锌银矿床形成于早白垩世,矿化类型为岩浆热液脉型,成矿热液主要来自岩浆水,后期受大气降水的影响。In Sandaogou mining area at Luanchuan County,Henan,there are discovered for five large scale Pb-Zn-Ag ore belts which are a group of NE trending parallel faults with a length of 300-1300 m.They are characterized by long extension,stable occurrence and thickness and Pb-Zn-Ag polymetallic mineralization.It is indicated that there is a great prospecting potential in Sandaogou mining area.According to the geological and geochemical characteristics of the mining area,combined with the mineral association,fluid inclusion characteristics,isotopic composition and metallogenic age of the mineralization,it is considered that Sandaogou Pb-Zn-Ag deposit is formed in the Early Cretaceous.The mineralization type is magmatic hydrothermal vein type.The ore-forming hydrothermal fluid mainly comes from magmatic water,and is influenced by meteoric precipitation in the later period.

关 键 词：三道沟铅锌银矿 矿床地质特征 热液脉型 河南栾川 

分 类 号：P618.4[天文地球—矿床学]