内蒙古大井铜多金属矿床勘查技术方法综合应用及找矿快速预测定位  

Comprehensive Application of Exploration Techniques and Methods of Dajing Copper Polymetallic Deposit in Inner Mongolia and Rapid Prediction and Location of Prospecting

作　　者：王建超 曾友强 施玉娇 王志伟 WANG Jian-chao;ZENG You-qiang;SHI Yu-jiao;WANG Zhi-wei(China Nonferrous Metals(Guilin)Geololgy and Mining Co.,Ltd.,Guilin 541004,China;Chifeng Dajingzi Mining Co.,Ltd.,Chifeng 541004,China)

机构地区：[1]中国有色桂林矿产地质研究院有限公司,广西桂林541004 [2]赤峰大井子矿业有限公司,内蒙古赤峰025250

出　　处：《有色矿冶》2024年第6期1-5,14,共6页Non-Ferrous Mining and Metallurgy

基　　金：中国有色集团科技计划项目项目资助(编号:2021KJJH08);中国有色集团科技计划项目项目资助(编号:2022KJZX02)。

摘　　要：内蒙古大井铜多金属矿床为一岩浆热液充填型矿床,铜多金属矿主要赋存于二叠系上统林西组,主要有用组分为Cu、Sn、Ag、Pb、Zn。在介绍已知矿区地质特征的基础上,在该矿区已知矿段内,开展化探土壤次生晕、可控源音频大地电磁法测量、氡气测量及重力测量等多种物化探工作,总结矿体上方化探异常特征和矿体的电阻率特征,进而划分矿体周边和外围有利成矿空间;观测氡气浓度分布特征以寻找与成矿有关的断层构造,应用重力测量探查中深部岩体信息追索热液来源,最后综合分析各类反馈信息进行找矿快速预测定位,为下一步开展工作奠定一定的研究基础。Dajing copper polymetallic ore in Inner Mongolia is a magmatic hydrothermal filling deposit.Ore bodies mainly occur in Linxi Formation of Upper Permian,and the main useful components of the orebodies are Cu,Sn,Ag,Pb,Zn.In order to summarize the geochemical anomaly characteristics and the resistivity characteristics of the ore body,multiple methods were used in the mining area including geochemical soil secondary halo,controlled source audio magnetotelluric survey,radon survey and gravity survey etc.Through the above methods,the favorable prospecting spaces can be discovered,and the fault structures related to mineralization also can be inferred by Measuring radon gas.Deep rock mass is detected by gravity survey to trace the hydrothermal source in the mining area.Finally,through comprehensive analysis,rapid prediction and positioning of ore prospecting will be carried out,which will lay a certain research foundation for further work.

关 键 词：大井铜多金属矿 土壤次生晕 可控源音频大地电磁法 氡气测量 重力测量 

分 类 号：P631.3[天文地球—地质矿产勘探]