摘要
雨台山银多金属矿床位于大别山地区大悟宣化店—麻城乘马岗银铜金成矿带中段,是与大别山造山带有关的银多金属矿床。矿体主要赋存于NW向断裂破碎带和近EW向石英脉中,受断裂控制明显。近矿围岩主要为压碎石英岩和碎裂二长浅粒岩,围岩蚀变以硅化、钾化、叶蜡石化为主。开展了矿区钻孔岩石地球化学测量工作,分析了Au、Ag、Cu、Pb、Zn、As、Sb、W、Sn、Mo共10种元素。用相关分析、聚类分析、因子分析方法研究了元素组合特征。通过与成矿元素分带特征进行对比研究,建立了符合矿区的深源流体成矿模式,并对矿床深部找矿前景进行了初步预测。
Yutaishan Ag-polymetallic deposit is located in the middle part of the Ag-Cu-Au metallogenic belt from Xuanhuadian,Dawu County to Chengmagang,Macheng County,which is related to Dabieshan orogenic belt.Ore bodies mainly occur in NW-striking fracture zone and near-EW-striking quartz vein,and are obviously controlled by the fault.The surrounding rocks near orebody are mainly crushed quartzite and fractured adamellite leptite.The alteration of surrounding rocks is mainly silicification,kalization and pyrophyllization.The geochemical survey of the drilling hole rocks in the mining area is carried out,and 10 elements including Au,Ag,Cu,Pb,Zn,As,Sb,W,Sn,Mo are analyzed.Correlation analysis,cluster analysis and factor analysis are used to study the characteristics of element combination.By comparing with the zonation characteristics of ore-forming elements,the deep source fluid metallogenic model is established,and the prospecting prospect is preliminarily predicted for the deep part of the deposit.
作者
华二
张旦
戴进玲
岑志辉
蒋型义
徐江嬿
陈松林
刘红亮
HUA Er;ZHANG Dan;DAI Jinling;CEN Zhihui;JIANG Xingyi;XU Jiangyan;CHEN Songlin;LIU Hongliang(Central South Geological Survey Institute of China Metallurgical Geology Bureau,Wuhan 430081,Hubei,China;Hubei Geological Exploration Fund Management Center,Wuhan 430071,Hubei,China)
出处
《矿产与地质》
2023年第2期371-377,共7页
Mineral Resources and Geology
基金
湖北省地质勘查基金项目(编号:[2021]14号)资助。
关键词
大别山成矿带
银多金属矿
原生晕地球化学
矿化分带
Dabieshan metallogenic belt
silver polymetallic deposit
primary halo geochemistry
mineralization zoning
