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首页   >    黄金地质

蒙古国北部那仁陶勒盖金矿床地质特征及成因探讨

  • 作者:
  • 张帅|张义波|石传军
  • 作者单位:
  • Zhang Shuai|Zhang Yibo|Shi Chuanjun
  • 基金项目:

  • isnull
  • 详细信息:

  • 作者简介:
  • 张帅(1984—),男,山东济南人,工程师,主要从事固体矿产勘查找矿工作;济南市高新区颖秀路3366号,蒙古正元有限责任公司,250101;E-mail:287725781@qq.com
  • 通讯作者:
  • isnull
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Geological characteristics and genesis of Naran Tolgoi Gold Deposit in northern Mongolia

  • English Author:
  • Mongolia Zhengyuan Co.,Ltd.|Mongolia Zhengyuan Co.,Ltd.|Mongolia Zhengyuan Co.,Ltd.
  • Unit:
  • 摘要
  • 在线预览
  • 参考文献

摘要:

那仁陶勒盖金矿床位于蒙古国最重要的北肯特金成矿带内,矿体赋存于下寒武统—上奥陶统哈拉群变质砂岩中,呈脉状、似脉状、透镜状等产出,围岩蚀变主要有硅化、绿泥石化、高岭土化及绢云母化等,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,成矿阶段可划分为3个阶段,分别为石英-毒砂-黄铁矿阶段、石英-金-多金属硫化物阶段和碳酸盐阶段。初步分析认为,那仁陶勒盖金矿床为受北东向断裂构造控制的浅成中低温热液脉型金矿床。

关键词:

地质特征;矿床成因;那仁陶勒盖金矿床;北肯特金成矿带;蒙古国

Abstract:

The Naran Tolgoi Gold Deposit is located in the North Kent gold metallogenic belt,the most important gold belt in Mongolia.The ore bodies are hosted in the Lower Cambrian-Upper Ordovician metamorphic sandstone,and occur as vein,vein-like and lenticular type.The alterations are mainly composed of silicification,chloritization,kaolinization and sericitization,in which the silicification is closely associated with gold mineralization.According to assemblage and formation sequence of ore minerals,the ore-forming stages are subpided into 3 stages:quartz-arsenopyrite-pyrite stage,quartz-gold-polymetallic sulfide stage and carbonate stage.Preliminary analysis holds that the Naran Tolgoi Gold Deposit is a hypabyssal medium-low temperature hydrothermal gold deposit controlled by NE-trending fault.

Keywords:

geological characteristic;deposit genesis;Naran Tolgoi Gold Deposit;North Kent gold metallogenic belt;Mongolia