《黄金》杂志(月刊) 第39卷 总第419期
2018年10月 第10期
目次
黄金地质
  • 江西金山金矿田朱林西—竹叶岭金矿区硫、铅同位素地球化学特征及其成因意义……刘国荣,赵辉,卢树东,丁高明,唐一昂,肖红
  • 摘 要:朱林西—竹叶岭金矿区位于钦杭成矿带东段,通过对其金矿石中黄铁矿开展硫、铅同位素研究,探讨其成矿物质来源,并与周边的金山金矿区展开对比。结果表明,黄铁矿δ34S介于4.11 ~4.56 ‰,平均值为4.34 ‰,显示了地幔硫的特点;矿石206Pb/204Pb17.681~17.853207Pb/204Pb15.634~15.699208Pb/204Pb37.943~38.098;铅同位素232Th/238U值变化于3.89~3.95,平均值3.92,μ值范围为9.609.75,均值为9.69,均大于9.58,反映矿石具上地壳铅特征。根据同位素特征参数、模式图解、Δγ-Δβ示踪等,认为朱林西—竹叶岭金矿床和金山金矿床的成矿物质来源为双桥山群含金建造,成矿作用与造山作用有关,属岩浆热液矿床,晋宁期为主成矿期,加里东期、海西—印支期、燕山期可能造成早期成矿的次生富集。

    Geochemicalcharacteristics of sulfur and lead isotopes in Zhulinxi-Zhuyeling Gold Districtin Jinshan Gold Field,Jiangxi Province and their genetic significance……Liu Guorong,ZhaoHui,Lu Shudong,Ding Gaoming,Tang Yiang,Xiao Hong

    AbstractTheZhulinxi-Zhuyeling Gold District of Jinshan Gold Field,Jiangxi Province islocated in the east part of Qinhang metallogenic belt.In this paper,the sulfurand lead isotopes in pyrite minerals of the gold ores were studied to explorethe sources of the ore-forming materials which were compared with the nearbyJinshan Gold District.The results show that the δ34S values ofpyrite range between 4.11 and 4.56 ,with an average of 4.34 ,showing thecharacteristics of mantle sulphur.206Pb/204Pb of the oreis 17.681-17.853207Pb/204Pbis 15.634-15.699 and 208Pb/204Pb is 37.943-38.098.Leadisotope 232Th/238U value ranges from 3.89 to3.95,averaging 3.92,μ value rangesabove 9.58,from 9.60 to 9.75,averaging 9.69,showing the characteristics ofupper crust lead.Based on isotopic characteristic parameters,model diagrams,andΔγ-Δβ tracer,it is revealed that the gold-bearing structure of ShuangqiaoshanGroup is the main ore-forming material source of Zhulinxi-Zhuyeling Gold Mineand Jinshan Gold Mine.The metallogenesis is related to orogenesis.It is amagmatic hydrothermal deposit.The Jinning period is the main mineralizationperiod.Caledonian,Hercynian-Indosinian,and Yanshanian periods may causesecondary enrichment of early mineralization.

    Keywords:geochemicalcharacteristics; isotopes; sources of ore-forming materials; orogenesis;magmatic hydrothermal deposit


  • 关键词:地球化学特征;同位素;成矿物质来源;造山作用;岩浆热液矿床
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