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金属矿山 ›› 2013, Vol. 42 ›› Issue (05): 110-112.

• 地质与测量 • 上一篇    下一篇

大湾金矿元素组合异常的圈定及找矿方向

杨海1,彭秀红1,2   

  1. 1.成都理工大学核技术与自动化工程学院;2.四川省地学核技术重点实验室
  • 出版日期:2013-05-15 发布日期:2013-06-08
  • 基金资助:

    * 国家自然科学基金项目(编号:41103025),云南富宁地区地球化学异常评价项目(编号:2008-294)。

Delineation of Assemblage Element Anomaly and Prospecting Direction in Dawan Gold Deposit

Yang Hai1,Peng Xiuhong1,2   

  1. 1.The College of Nuclear Technology and Automation Engineering,Chengdu University of Technology; 2.Provincial Key Laboratory of Applied Nuclear Techniques in Geosciences
  • Online:2013-05-15 Published:2013-06-08

摘要: 通过对云南大湾金矿地球化学特征的研究,认为Au与As、Sb、Hg元素呈正相关关系,尤其与As的相关性较好,与Hg的相关性较弱;Au与Cu、Co、Ni 3种元素呈负相关。用R型因子分析法和元素叠加异常法分别对异常进行了组合异常的圈定,对2种方法进行了对比研究,因子得分圈定组合异常能更准确和直观地反映组合异常浓集中心的位置,但圈定的异常范围较大,无法判断明确的浓集中心,利用异常下限划分出来的异常范围较为真实。

关键词: 大湾金矿, 组合异常圈定, 因子分析, 找矿方向

Abstract: The geochemical character in Yunnan Dawan Gold Deposit shows that Au has positive correlation with As,Sb,Hg,but higher correlation with As and lower correlation with Hg,and negative correlation with Cu,Co,Ni. R-type factor analysis method and superposed element anomaly method are used for anomaly delineating. Comparing with each other,R-type factor analysis method could find the concentration center of assemblage anomaly correctly and directly,but the ranges of anomalies are large,resulting in difficulty to judge the concentration center clearly. However,the anomaly ranges delineated through threshold is real.

Key words: Dawan gold deposit, Assemblage anomaly delineating, Factor analysis, Prospecting direction