青海胜利沟金矿床铅同位素特征与矿床成因分析  

Pb Isotope Geochemistry and Ore Genesis for the Shengligou Au Deposit in Qinghai

作　　者：黄亚[1,2] 赖健清[1] 樊俊昌[1,3] 

机构地区：[1]中南大学有色金属成矿预测教育部重点实验室,地球科学与信息物理学院,长沙410083 [2]河南省煤炭地质勘察研究总院,郑州450000 [3]山金西部地质矿产勘查有限公司,西宁810016

出　　处：《四川地质学报》2015年第1期134-137,共4页Acta Geologica Sichuan

基　　金：中国地质调查局青藏专项(资[2008]青藏21-03号)

摘　　要：胜利沟矿区位于柴北缘多金属成矿带上,该区域构造环境复杂,成矿条件优越。本文拟通过分析矿床地质特征并结合铅同位素特征,探讨胜利沟金矿床的矿床成因。铅同位素分布范围较窄,在构造模式图的投影位置说明矿石中铅为地壳来源,并且主要可能是上地壳来源,成矿物质均主要来源于与俯冲造山作用有关的地幔和地壳的混合。The Shengligou gold deposit is located in northern Qaidam polymetallic metallogenic belt and characterized by its complicated tectonic settings and favorable ore-forming conditions. This paper discusses the genesis of the Shengligou gold deposit based on its geological characteristics and Pb isotope composition. The distribution range of lead isotopes is narrow. The projection position of lead isotope composition in the structural model diagram indicates the upper crustal sources. The ore material was derived from mixture of mantle and crust which was related with the subduction orogeny.

关 键 词：铅同位素 金矿床 成因 胜利沟 

分 类 号：P632.7[天文地球—地质矿产勘探] P618.51[天文地球—地质学]