东秦岭崤山北麓银家沟硫多金属矿床分带及矿体群分布规律  

Study on Zoning and Distribution Law of Sulfur-Polymetallic Deposits in Yinjiagou,North Slope of Xiao Mountain in Eastern Qinling

作　　者：吴飞[1] 高洋 李炎[1] WU Fei GAO Yang LI Yan(No.2 Geo-exploration Institute Henan Provincial Bureau of Geo-exploration and Mineral Development, Zhengzhou 450000, China Henan Rock Ore Testing Center, Zhengzhou 450000, China)

机构地区：[1]河南省地质矿产勘查开发局第二地质勘查院,河南郑州450000 [2]河南省岩矿测试中心,河南郑州450053

出　　处：《甘肃冶金》2017年第6期74-80,84,共8页Gansu Metallurgy

摘　　要：东秦岭崤山北麓银家沟硫多金属矿床在豫西地区较为罕见,通过归纳和分析矿床的分带及矿体群的分布特征,目的是为今后地质工作者寻找同类型的矿产资源提供依据。矿床产于钾长花岗斑岩岩株的接触带上,出现较明显的分带特征。水平分带:岩体内接触带为钼矿,接触带为铅、锌、铜、铁等,主接触带为以硫铁矿为主,外接触带为铅锌矿,温度成矿序列明显;垂直分带:上部为细脉浸染型钼矿,中部为高温磁铁矿,下部为中温黄铁矿、菱铁矿,垂直分带似呈现逆向序列;主要工业硫矿体以矿体群形式出现。每个矿体群由2~4个矿体组成,矿体密集产出而且产状接近,矿体产状与钾长花岗斑岩和围岩接触带产状一致。矿床共生矿产有Cu、Pb、Zn、Mo、Au矿,Cu、Pb、Zn基本上以伴生资源出现,Mo、Au矿可作为独立矿体圈出。总而言之,银家沟硫多金属矿床工业综合利用价值较大。Sulfur-polymetallic deposits, which situated in Yinjiagou, north slope of Xiao Mountain in eastern Qinling, are rare in western Henan province. By summarizing and analyzing the distribution characteristics of ore deposits and ore body groups, the purpose is to provide the basis for future geological workers to find the same type of mineral resources.The deposit occurs in moyite stock contact zone and zonation is obvious. Horizontal zonation： Rock endocontact is moly ore, contact zone is Pb,Zn,Cu,Fe and so on, main contact zone is troilite, and exocontact is Pb-Zn ore. Vertical zonation： Upper part is stockwork and disseminated molybdenum, middle part is megatherm magnetite, lower part is mesotherm pyrite and siderite. Vertical zonation appears in reverse order sequence. Mainly industry sulphur deposit occurs as ore cluster. Each ore cluster is consist of 2-4 ore body. Ore body has dense distribution and similar attitude which as same as moyite-surrouding rock contact. Coexisted minerals are Cu, Pb,Zn, Mo,Au deposit, Cu,Pb, Zn are mainly occurs as associated mineral, and Mo ,Au deposit is separate one. In summary, sulfur-polymetallic deposits in Yinjiagou has highly industry comprehensive utilization.

关 键 词：东秦岭 崤山 硫多金属矿床 矿床分带 矿体群 钾长花岗斑岩 共伴生资源 综合利用 

分 类 号：P619.216[天文地球—矿床学]