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金属矿山 ›› 2009, Vol. 39 ›› Issue (08): 72-75+105.

• 地质与测量 • 上一篇    下一篇

铁氧化物铜金矿床及其特征和分类

肖晓林1,朱志敏2   

  1. 1.成都理工大学;2.中国地质科学院矿产综合利用研究所
  • 出版日期:2009-08-17 发布日期:2011-04-26
  • 基金资助:

    中国地质调查局地质调查项目(编号:1212010781004)。

Characteristics and Classification of Iron Oxide Copper-Gold Deposits

Xiao Xiaolin1,Zhu Zhimin2   

  1. 1.Chengdu University of Technology;2.Institute of Multipurpose Utilization of Mineral Resources ,CAGS
  • Online:2009-08-17 Published:2011-04-26

摘要: 铁氧化物铜金矿床是上世纪90年代以来才被认知的一种重要矿床类型,因其巨大的经济和理论研究价值受到矿业界和学术界的重视。通过总结近年来的新资料和文献,定义铁氧化物铜金矿床是指一类具有贫硫化物、富铁氧化物(低钛磁铁矿±赤铁矿)矿石的热液型铜或铜-金多金属矿床。其基本特征为:有用金属以Cu或者Cu-Au为主,矿石硫含量低;矿床属热液矿床,有大范围的Na-K蚀变;矿床受构造控制明显;矿石富磁铁矿和(或)赤铁矿,铁氧化物钛含量低;与火成岩关系不明确。根据矿床成因可将铁氧化物铜金矿床分为岩浆成因矿床、非岩浆成因矿床和混合成因矿床。

关键词: 铁氧化物铜金矿床, 概念, 特征, 分类

Abstract: The iron oxide-copper-gold (IOCG) deposit is an important deposit known since 1990's and is paid more attention by scientists and researchers in mining fields due to its large economic and scientific values.In light of new information and documents in recent year, the IOCG deposit is defined as a kind of hydrothermal Cu or Cu-Au deposits family with low sulfide and high iron oxide (magnetite±hematite with low Ti content).Its characteristics are as follows: valuable metals mainly as Cu, or Cu-Au with low sulfide; hydrothermal deposits with extensive Na-K alteration; strong structural controls; abundant magnetite and/or hematite with low Ti content; no clear relations with igneous rocks.Based on the genetic type of deposits, IOCG deposits can be classified into three types as magmatic IOCG deposits, non-magmatic IOCG deposits and hybrid IOCG deposits.

Key words: IOCG deposits, Concept, Characteristics, Classification