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现代地质 ›› 2012, Vol. 26 ›› Issue (5): 1043-1050.

• 地球化学 • 上一篇    下一篇

大兴安岭查巴奇地区水系沉积物地球化学特征及找矿方向

 戴慧敏1,2, 代雅键2, 马振东3, 杨忠芳1, 宫传东4, 孙中任2   

  1. 1 中国地质大学 地球科学与资源学院,北京100083;2 沈阳地质矿产研究所,辽宁 沈阳110034;3  中国地质大学 地球科学学院,湖北 武汉430074; 4 沈阳有色冶金设计研究院, 辽宁 沈阳110003
  • 收稿日期:2012-05-29 修回日期:2012-08-25 出版日期:2012-10-19 发布日期:2012-10-23
  • 作者简介:戴慧敏,女,高级工程师,博士研究生,1979年出生,地球化学专业,主要从事应用地球化学的研究工作。Email: daihuimin78@126.com。
  • 基金资助:

    中国地质调查局项目 (矿调[2004]10-2号)。

Geochemical Characteristics of Stream Sediments and Prospecting Directionin the Chabaqi Area of Da Hinggan Mts

 DAI  Hui-Min-1,2, DAI  Ya-Jian-2, MA  Zhen-Dong-3, YANG  Zhong-Fang-1, GONG  Chuan-Dong-4, SUN  Zhong-Lin-2   

  1. 1 School of Earth Sciences and Resources, China University of Geosciences, Beijing100083,China; 2 Shenyang Institute of Geology andMineral Resources, Shenyang, Liaoning110034, China; 3 Faculty of Earth Sciences, China University of Geosciences,Wuhan, Hubei430074, China; 4 Shenyang Nonferrous Metallurgy Engineering and Research Institute, Shenyang, Liaoning110003, China
  • Received:2012-05-29 Revised:2012-08-25 Online:2012-10-19 Published:2012-10-23

摘要:

采用R型聚类分析方法和衬值累乘法,圈定综合异常以消除地质背景对异常圈定的影响。重要综合异常区主要发育在变质岩及其与酸性侵入体接触部位。综合异常具有沿着NE和NNE向断裂构造发育的特征,依据综合异常特征和地质信息圈定出3个成矿远景区。查巴奇小东沟屯和平顶山是本区寻找石英脉型和破碎带型金铜矿的有利区段;新兴屯—德胜屯是寻找热液型(斑岩型)矿床的远景区。

关键词: 综合异常, 水系沉积物, 找矿方向, 查巴奇地区, 大兴安岭

Abstract:

R-type cluster analysis and contrast value multiplication accumulating method were adopted to eliminate the effect of geological background during delineating the comprehensive anomalies of geochemistry. The main comprehensive anomalies are mainly located in the metamorphic rocks and the contact location with the acid intrusive bodies, and also developed along the NE and NNE faults. Three metallogenic prospective areas in the Chabaqi area were delineated based on the geological information and anomaly characteristics. Xiaodonggoutun and Pingdingshan prospective areas are the potential areas of quartz vein type and broken belt type goldcopper deposits,and the hydrothermal type (or porphyry type) deposits in Xinxingtun Deshengtun area are the main exploration direction.

Key words: comprehensive anomaly, stream sediment, prospecting direction, Chabaqi area, Da Hinggan Mts