陕西省陈家坝铜铅锌多金属矿床地质地球化学特征及矿床成因探讨
发布时间：2018-07-20 17:43
【摘要】：陕西省略阳县陈家坝铜铅锌多金属矿床是"勉-略-阳"矿集区具有代表性的铜多金属矿床之一,在该矿区内已经发现了多个矿(化)体,显示出很好的成矿潜力。本文在室内外研究的基础上,详细论述了该矿床的地质和地球化学特征,采用矿床岩石主量元素、黄铁矿单矿物微量元素地球化学分析和硫同位素测试方法,对陈家坝铜铅锌多金属矿床的成矿地质特征、成矿物质来源和成矿机制进行了探讨。硫同位素特征显示,δ~(34)S主要来自海水硫酸盐,认为该矿床成矿物质主要来源于碧口岩群东沟坝组,NWW和NEE向共轭断裂是矿田内重要的控矿构造。通过黄铁矿微量元素分析显示陈家坝矿床成矿温度为中低温,成矿经历了热液作用的改造过程。综合研究认为该矿床属火山沉积-改造型矿床。
[Abstract]:The Chenjiaba copper-lead-zinc polymetallic deposit in Lueyang County, Shaanxi Province is one of the representative copper polymetallic deposits in Mian-Luo-yang ore concentration area. Many orebodies have been found in the deposit, showing good metallogenic potential. On the basis of indoor and outdoor studies, the geological and geochemical characteristics of the deposit are discussed in detail. The main elements of rock, trace element geochemistry of pyrite single mineral and sulfur isotope testing method are used. The metallogenic geological characteristics, ore-forming source and metallogenic mechanism of Chenjiaba copper-lead-zinc polymetallic deposit are discussed. The sulfur isotopic characteristics show that 未 ~ (34) S mainly comes from seawater sulfate. It is considered that the ore-forming material of the deposit is mainly derived from the NWW and NEE-trending conjugate faults of Donggou Dam formation in Bikou group, which are important ore-controlling structures in the ore field. The trace element analysis of pyrite shows that the ore-forming temperature of Chenjiaba deposit is moderate and low temperature, and the ore-forming process has gone through the process of hydrothermal transformation. It is considered that the deposit is volcanic sedimentary-reformed deposit.
【作者单位】： 长安大学地球科学与资源学院;西北有色地质勘查局;西部矿产资源与地质工程教育部重点实验室;西北有色地质勘查局七一一总队;
【基金】：秦岭-大巴山-大别山成矿规律及找矿方向研究(编号:1212011220869)下设课题 西北有色地质矿业集团有限公司博士后科研项目资助
【分类号】：P618.2
本文编号：2134268
[Abstract]:The Chenjiaba copper-lead-zinc polymetallic deposit in Lueyang County, Shaanxi Province is one of the representative copper polymetallic deposits in Mian-Luo-yang ore concentration area. Many orebodies have been found in the deposit, showing good metallogenic potential. On the basis of indoor and outdoor studies, the geological and geochemical characteristics of the deposit are discussed in detail. The main elements of rock, trace element geochemistry of pyrite single mineral and sulfur isotope testing method are used. The metallogenic geological characteristics, ore-forming source and metallogenic mechanism of Chenjiaba copper-lead-zinc polymetallic deposit are discussed. The sulfur isotopic characteristics show that 未 ~ (34) S mainly comes from seawater sulfate. It is considered that the ore-forming material of the deposit is mainly derived from the NWW and NEE-trending conjugate faults of Donggou Dam formation in Bikou group, which are important ore-controlling structures in the ore field. The trace element analysis of pyrite shows that the ore-forming temperature of Chenjiaba deposit is moderate and low temperature, and the ore-forming process has gone through the process of hydrothermal transformation. It is considered that the deposit is volcanic sedimentary-reformed deposit.
【作者单位】： 长安大学地球科学与资源学院;西北有色地质勘查局;西部矿产资源与地质工程教育部重点实验室;西北有色地质勘查局七一一总队;
【基金】：秦岭-大巴山-大别山成矿规律及找矿方向研究(编号:1212011220869)下设课题 西北有色地质矿业集团有限公司博士后科研项目资助
【分类号】：P618.2
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