河南省桐柏县黄金冲金矿床特征及潜力分析  

Characteristics and Potential Analysis of the Huangjin Chong Gold Deposit in Tongbai County,Henan Province

作　　者：胡金辉 宋辉 李华伟 赵世民 李文涛 HU Jinhui;SONG Hui;LI Huawei;ZHAO Shimin;LI Wentao(Henan First Geological Exploration and Development Co.,Ltd.,Zhengzhou,Henan 450001,China;Henan Zhongyuan Chemical Co.,Ltd.,Nanyang,Henan 474750,China;Shaanxi Honghan Petroleum Geology Technology Co.,Ltd.,Xi’an,Shaanxi 710100,China)

机构地区：[1]河南省第一地质勘查院有限公司,河南郑州450001 [2]河南中源化学股份有限公司,河南南阳474750 [3]陕西鸿翰石油地质科技有限公司,陕西西安710100

出　　处：《中国锰业》2024年第5期78-84,99,共8页China Manganese Industry

基　　金：河南省财政地质勘查项目(编号:豫自然资发〔2020〕18)。

摘　　要：为研究河南省桐柏县黄金冲金矿床的地质特征及资源潜力,通过地质勘查、地球物理和地球化学分析技术,对矿区的地层结构、构造演化、岩浆活动和变质作用进行了深入的考察与分析。结果表明,黄金冲金矿床受固庙-桐柏韧性剪切带控制,矿体主要产于北西-南东向的韧性剪切带内,金品位介于1.07×10^(-6)~7.14×10^(-6),平均为2.54×10^(-6)。矿体形态以似层状、脉状为主,且与围岩界线不明显。矿石特征显示,主要金属矿物为黄铁矿、方铅矿等,矿石金矿物为自然金。围岩蚀变强烈,以黄铁绢英岩化、钾长石化为主。结论认为,黄金冲金矿为韧性剪切带型金矿,通过进一步的地质工作和深部勘探,有望发现更大规模的金矿床,具有巨大的找矿潜力。To investigate the geological characteristics and resource potential of the Huangjin Chong gold deposit in Tongbai County,Henan Province,an in-depth examination and analysis of the stratigraphic structure,tectonic evolution,magmatic activities,and metamorphic processes in the mining area were conducted using geological exploration,geophysical,and geochemical analytical techniques.The results indicate that the Huangjin Chong gold deposit is controlled by the Gumiao-Tongbai ductile shear zone,with the ore bodies primarily occurring within the northwest-southeast trending ductile shear zone.The gold grades range from 1.07×10^(-6)to 7.14×10^(-6),with an average of 2.54×10^(-6).The ore body morphology is predominantly lenticular and vein-like,with indistinct boundaries with the country rocks.The characteristics of the ore show that the main metallic minerals are pyrite and galena,and the gold-bearing mineral is native gold.The wall rock alteration is intense,mainly characterized by pyritization and K-feldspar alteration.The conclusion is that the Huangjin Chong gold deposit is a ductile shear zone-type gold deposit,and further geological work and deep exploration are expected to discover larger-scale gold deposits,indicating significant potential for mineral discovery.

关 键 词：河南 黄金冲金矿床 韧性剪切带 地球物理 地球化学 

分 类 号：P612[天文地球—矿床学] P631[天文地球—地质学]