地质与勘探2017，Vol.53Issue(3)：436-444,9.
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
Geochemical Characteristics and Ore Genesis of the Chenjiaba Copper-Lead-Zinc Polymetallic Deposit in Shaanxi Province
摘要
Abstract
Located in the Lueyang County of Shaanxi Province,the Chenjiaba Cu-Pb-Zn polymetallic deposit in the Mianxian-Lueyang-Yangpingguan ore concentration area is representative.A number of ore mineralization (bodies) have been found in this deposit,showing a huge metallogenic potential.Based on laboratory study and field investigations,this paper presents detailed characteristics of geology and mineralization of this deposit.Using geochemical analysis and sulfur isotope analysis on major elements of rocks and trace elements,we explored the geological features and the source of ore-forming materials and ore-forming mechanism of the Chenjiaba Cu-Pb-Zn polymetallic deposit.The characteristics of sulfur isotopes suggest that δ34S was mainly from seawater sulfate.The metallogenic material of the deposit was originated from the Donggouba Formation of the Bikou group.The conjugate NWW-and NEE-trending faults are the major ore-controlling structure in the ore field.The analysis of trace elements in pyrite shows that the forming temperature of the Chenjiaba deposit is of middle and low values,and the mineralization has experienced the reformation process of hydrothermal fluid.The comprehensive study suggests that the deposit belongs to the volcanic sediment-reform type.关键词
铜铅锌多金属矿床/地球化学/矿床成因/勉-略-阳矿集区/陈家坝/陕西Key words
Cu-Pb-Zn polymetallic deposit/geochemistry/ore genesis/Mian-Lüe-Yang ore district/Chenjiaba/Shaanxi分类
天文与地球科学引用本文复制引用
丁坤,王瑞廷,钱壮志,栾燕,张天运,郑崔勇,冯延清..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[J].地质与勘探,2017,53(3):436-444,9.基金项目
秦岭-大巴山-大别山成矿规律及找矿方向研究(编号:1212011220869)下设课题和西北有色地质矿业集团有限公司博士后科研项目资助. （编号:1212011220869）
