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首页   >    黄金地质

蒙古国西部艾拉格乌勒金矿床地质特征及矿床成因

  • 作者:
  • 姜晓平|张帅
  • 作者单位:
  • 中国冶金地质总局山东正元地质勘查院|中国冶金地质总局山东正元地质勘查院
  • 基金项目:

  • 中国地质调查局项目(DD20190438)
  • 详细信息:

  • 作者简介:
  • 姜晓平(1966—),男,山东海阳人,高级工程师,从事地质矿产勘查研究工作;济南市高新区颖秀路3366号,中国冶金地质总局山东正元地质勘查院,250101;E-mail:xiaoping781@126.com
  • 通讯作者:
  • isnull
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Geological characteristics and genesis of Airag Uul Gold Deposit in Western Mongolia

  • English Author:
  • Geological Exploration Institute of Shandong Zhengyuan,China Metallurgical Geology Bureau|Geological Exploration Institute of Shandong Zhengyuan,China Metallurgical Geology Bureau
  • Unit:
  • 摘要
  • 在线预览
  • 参考文献

摘要:

艾拉格乌勒金矿床位于蒙古国西部北蒙古铜—金—铁—镍—磷成矿带内,矿体赋存于中—晚寒武世角闪二长花岗岩、黑云母花岗岩、斜长花岗岩内,呈脉状、似脉状、透镜状等产出,围岩蚀变主要有钾化、硅化及绢云母化等,其中硅化与金矿化关系密切。根据矿石矿物组合和生成顺序,成矿可划分为4个阶段,分别为石英-黄铁矿阶段、多金属硫化物阶段、黄铁矿-碳酸盐阶段和表生富集阶段。矿床地质特征表明,艾拉格乌勒金矿床为受北西向断裂控制的中低温热液充填石英脉型金矿床。

关键词:

地质特征;成矿阶段;矿床成因;艾拉格乌勒金矿床;蒙古国

Abstract:

The Airag Uul Gold Deposit is located in the North Mongolia Cu-Au-Fe-Ni-P metallogenic belt of Western Mongolia.The ore bodies develop in hornblende monzogranite,biotite granite,plagiogranite during the Middle and Late Cambrian,and are displayed in vein,veinlike and lenticular forms.The alterations are mainly composed of potassic alteration,silicification,sericitization,and the silicification is closely related to gold mineralization.According to assemblage and formation sequence of ore minerals,the oreforming stages are subpided into 4 stages:quartz-pyrite stage,polymetallic sulfide stage,pyrite-carbonate stage and supergene enrichment stage.Geological characteristics show that the Airag Uul Gold Deposit is medium-low temperature hydrothermal quartz vein type deposit controlled by NW-trending fault.

Keywords:

geological characteristics;ore-forming stage;genesis of deposit;Airag Uul Gold Deposit;Mongolia