| 河南省栾川中营铅矿地质特征及成矿作用 |
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| 引用本文： | 李建领,许令兵,杨冬冬,陈昭.河南省栾川中营铅矿地质特征及成矿作用[J].矿产与地质,2016(4):615-620. |
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| 作者姓名： | 李建领 许令兵 杨冬冬 陈昭 |
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| 作者单位： | 河南省有色金属地质矿产局第二地质大队,河南 郑州,450016 |
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| 摘 要： | 中营铅矿床赋存于马超营断裂带的东段,为一新发现的品位较低大型铅矿床,矿体呈多层分枝复合产出,有用元素主要为铅,伴生金、银和钼;经矿床成因分析,区内安山岩为成矿有利地层,构造和岩浆活动为必要条件;从矿石矿物组成及矿物间穿插关系,可大致分为四个成矿阶段;从稀土元素分析,富铅矿石重稀土富集,且随铅品位的增高,富集明显,铅矿石中稀土元素与下伏花岗岩具有相似特征,矿床的形成与下伏花岗岩体关系较大;矿床赋存于隐伏岩体的低凹处。
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| 关 键 词： | 铅矿 马超营断裂 成矿阶段 隐伏岩体 中营 河南 |
Geological characteristics and mineralization of Zhongying Pb deposit in Luanchuan of Henan |
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| LI Jianling;XU Lingbing;YANG Dongdong;CHEN Zhao.Geological characteristics and mineralization of Zhongying Pb deposit in Luanchuan of Henan[J].Mineral Resources and Geology,2016(4):615-620. |
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| Authors: | LI Jianling;XU Lingbing;YANG Dongdong;CHEN Zhao |
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| Institution: | LI Jianling;XU Lingbing;YANG Dongdong;CHEN Zhao;No.2 Geological Brigade of Henan Nonferrous Geological Mineral Resource Bureau; |
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| Abstract: | Zhongying Pb deposits is a newly discovered low-grade large-sized lead deposit which occurs in the eastern section of Machaoying fracture zone.The orebodies of the deposit occur in the form of multi-layer and bifurcation,and useful elements primarily include lead,associated gold,silver and molybdenum.Ac-cording to the genesis analysis,andesite in the area is a favorable strata for mineralization with tectonic and magmatic activity as essential conditions.In light of the composition of ores and minerals and the intercala-ting relationship among minerals,the mineralization can be roughly divided into four stages.The analysis of rare earth elements suggests that lead-rich ores are enriched with HREE and the enrichment of HREE be-comes more significant as lead grade increases.Characteristics of REE in the lead deposit are similar to those of underlying granite,and the formation of the deposit has close relationship with underlying granite.The deposit occur in the hollow part of concealed rock mass. |
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| Keywords: | lead deposit Machaoying fracture mineralization stage concealed rock mass Zhongying Henan |
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