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现代矿业 ›› 2022, Vol. 38 ›› Issue (08): 26-.

• 地质·测量 • 上一篇    下一篇

内蒙古额济纳旗梧桐井南多金属矿区土壤地球化学特征及找矿预测

商振城1,2 罗先熔1,2 李超1,2 张文博1,2 汤国栋1,2 赵欣怡1,2   

  1. 1. 桂林理工大学地球科学学院; 2. 桂林理工大学隐伏矿床预测研究所
  • 出版日期:2022-08-25 发布日期:2023-06-02
  • 基金资助:
    *国家重点研发计划项目(编号:2016YFC0600603,2017YFC0602604HT02)。

Soil Geochemical Characteristics and Prospecting Prediction of Wutongjingnan Polymetallic Mining Area in Ejina Banner,Inner Mongolia

SHANG Zhencheng1,2 LUO Xianrong1,2 LI Chao1,2 ZHANG Wenbo1,2 TANG Guodong1,2 ZHAO Xinyi1,2#br#   

  1. 1. College of Earth Science,Guilin University of Technology; 2. Institute of Concealed Mine Prospecting,Guilin University of Technology
  • Online:2022-08-25 Published:2023-06-02

摘要: 为优选内蒙古额济纳旗梧桐井南找矿靶区,在了解矿区基本地质特征基础上开展 了1∶10 000 土壤地球化学测量,采集了1 521 件土壤样品,分析Cu、Ni、Co、Cr、Pb、Sn、Zn、Mo、W、 Sb、As 等11 种元素的变异系数、浓集系数和富集系数,表明Cu、As、W为有利成矿元素。通过对11 种元素进行R 型因子分析,将元素划分为F1(Cr-Co-Ni)、F2(Cu-Zn-Mo-Pb)、F3(Zn-W)、F4(Sb-As) 4 个组合,采用衬度异常法圈定4 个找矿预测靶区。

关键词: 土壤地球化学, 异常特征, 衬度异常法, 找矿预测

Abstract: In order to optimize the prospecting target area in the south of Wutongjing in Ejina Ban⁃ ner,Inner Mongolia,a 1∶10 000 soil geochemical survey was carried out on the basis of understanding the basic geological characteristics of the mining area. A total of 1 521 soil samples were collected to ana⁃ lyze the variation coefficient,concentration coefficient and enrichment coefficient of 11 elements includ⁃ ing Cu,Ni,Co,Cr,Pb,Sn,Zn,Mo,W,Sb and As.It shows that Cu,As and W are favorable metallogenic elements. Through the R-type factor analysis of 11 elements,the elements are divided into four combina⁃ tions of F1( Cr-Co-Ni),F2(Cu-Zn-Mo-Pb),F3(Zn-W)and F4(Sb-As),and four prospecting predic⁃ tion targets are delineated by the contrast anomaly method.

Key words: soil geochemistry, anomalous characteristics, contrast value anomaly method, prospect? ing prediction