坦桑尼亚Nzega绿岩带Golden Pride金矿床研究进展  

New Progress on the Golden Pride Gold Deposit Research of Nzega Greenstone Belt in Tanzania

作　　者：任军平[1] 王杰[1] 刘晓阳[1] 贺福清[1] 何胜飞[1] 

机构地区：[1]天津地质矿产研究所,天津300170

出　　处：《地质调查与研究》2013年第1期47-53,共7页Geological Survey and Research

基　　金：国家地质科研项目:非洲中南部重要矿床地质背景;成矿作用和找矿潜力研究(1212011220910)

摘　　要：本文对Golden Pride金矿床已有研究成果做了初步总结,较系统地整理分析了矿床地质特征,如矿体分布形态、矿石特征、矿物共生组合和蚀变特征,以及与矿床成因有关的流体包裹体特征、硫同位素特征和铅同位素年代学。通过以述分析,作者建立了矿床成矿模型。作者认为诸多的证据支持如下结论:①金矿床可能属于太古宙造山型金矿床;②金矿床构造控矿特征明显,同时可能经历了后期的热液叠加作用;③金矿床的成矿时代大约是2680 Ma。The authors summarize previous research results of the Golden Pride gold deposit in Tanzania and systems analysis the geological characteristics and deposit genesis characteristics.Geological characteristics include the typical orebody distribution shape, ore characteristics, mineral paragenesis sequence and alteration characteristics. The deposit genesis characteristics include fluid inclusions, S isotope and the analysis of isotope chronological aspects. Through above data analysis and the authors establish Metallogenic model. After the research, the authors think that a lot of evidence to support the conclusion：（1） Golden Pride gold deposit belongs to Archaean orogenic gold deposit; （2） The characteristic of ore-controlling structures in Golden Pride gold deposit is obvi- ous and it may have undergone late hydrothermal superposition effect; （3） metallogenic epoch of Golden Pride gold deposit is about 2,680 Ma.

关 键 词：GOLDEN Pride金矿床 Nzega绿岩带 晚太古代 坦桑尼亚 

分 类 号：P618.51[天文地球—矿床学]