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现代地质 ›› 2007, Vol. 21 ›› Issue (Suppl): 30-34.

• 地质学 • 上一篇    下一篇

大兴安岭南段铜多金属矿构造控矿特征分析

徐毅,张寿庭,王长明,刘晓吉   

  1. 中国地质大学 地球科学与资源学院,北京100083
  • 收稿日期:2006-11-01 修回日期:2006-12-07 出版日期:2007-08-20 发布日期:2007-08-20
  • 作者简介:徐毅,男,博士研究生,1980年出生,矿产普查与勘探专业,主要从事矿田构造研究。
  • 基金资助:

    中国地质大学地质过程与矿产资源国家重点实验室基金项目;内蒙古地矿重大科技项目(内地研2004-05)

Analysis on Structure Control Characteristics of Cu-polymetallic Deposits in the Southern Section of the Da Hinggan Mountains, Inner Mongolia

XU Yi, ZHANG Shou-ting, WANG Chang-ming, LIU Xiao-ji   

  1. School of Earth Sciences and Resources, China University of Geosciences, Beijing100083, China
  • Received:2006-11-01 Revised:2006-12-07 Online:2007-08-20 Published:2007-08-20

摘要:

大兴安岭南段地区为我国重要铜多金属成矿带,矿床(点)的产出和分布特征严格受构造控制,褶皱和断裂为区内主要控矿构造形迹。NE向区域深大断裂带为研究区的主体控岩控矿构造,与旁侧NNE、NW、EW向次级断裂构成复杂的网格状构造系统,矿床(点)主要分布于断裂结点处,表现出较强的分带性和递变性特征,构造复合控矿特征明显。研究区矿体、矿脉多呈不规则脉状、复脉状、透镜状产出,沿断裂带膨缩变化断续延伸。不同方向控矿断裂的交叉与分支复合部位,以及同一断裂的产状变化地段是找矿有利地段。

关键词: 大兴安岭南段, 铜多金属矿, 控矿构造

Abstract:

Lying in Inner Mongolia, the southern section of  the Da Hinggan Mountains is one of the most important polymetallic belts in China. In this region, mineral deposits are obviously controlled by structures which are mainly folds and fractures. The basic pattern of structures is in NE direction. Mineral deposits (points) are dominantly distributed in the intersections of NE, NNE, NW and EW fractures. They display strongly zoning and gradually changing. The ore bodies disconnectedly distribute along the fractures as irregular veins or lens. The preferable ore-finding areas are the intersections of different directions fractures or the sections of faults where the attitude changed.

Key words: the southern section of , the Da Hinggan Mountains, Cu-polymetallic deposits, ore-controlled structure

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