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豫西陆院沟金矿床构造蚀变岩相特征及其矿床成因和找矿勘查意义

  • 林寿洪
  • 作者单位:
  • 紫金矿业集团股份有限公司
  • 基金项目:

  • 国家自然科学基金项目(41672074)
  • 详细信息:

  • 作者简介:
  • 林寿洪(1975—),男,福建龙岩人,工程师,从事地质矿产勘查、矿业投资项目并购和矿山生产管理工作;福建省厦门市思明区环岛东路1811号中航紫金广场B塔39楼,紫金矿业集团股份有限公司,361008;E-mail:lsh364116@163.com
  • 通讯作者:
  • isnull
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Tectonic altered lithofacies characteristics,genesis and prospecting significance of Luyuangou Gold Deposit in Western Henan Province

  • English Author:
  • Zijin Mining Group Co.,Ltd.
  • Unit:
  • 摘要
  • 在线预览
  • 参考文献

摘要:

陆院沟金矿床位于小秦岭—熊耳山金成矿带东段熊耳山金银多金属矿集区。以构造蚀变岩相为研究对象,通过对构造变形和矿物组合的宏、微观调查研究,结合区域以往研究成果,认为陆院沟金矿床形成于压扭性向张扭性—张性转换构造环境,成矿流体具有富碱、高氧逸度岩浆流体性质,矿床成因类型应归属于造山型,已知矿脉深部、2#矿脉西侧及东西向北倾断裂是进一步找矿的主要方向。

关键词:

构造蚀变岩相;矿床成因;找矿方向;陆院沟金矿床;造山型金矿床

Abstract:

Luyuangou Gold Deposit is located in the Xiongershan gold-silver polymetallic high ore concentration area in the eastern part of the Xiaoqinling-Xiongershan gold metallogenic belt.In the study,which takes the tectonic altered lithofacies as the research object,investigates structural deformation and mineral assemblage in macro and micro scope and proceeds based on previous research results in this area,the main understandings are as follows:Luyuangou Gold Deposit was formed in a tectonic transformation from compression to extension-tension;the ore-forming fluids are characterized by rich alkali and high oxygen fugacity and derived from magma.The genesis is classified as orogenic gold deposits.The deep part,west side of the 2# dyke and the EW-trending northward dip fault structures are the main targets for further prospecting.

Keywords:

tectonic altered lithofacies;deposit genesis;prospecting direction;Luyuangou Gold Deposit;orogenic gold deposit