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现代地质 ›› 2018, Vol. 32 ›› Issue (02): 344-356.DOI: 10.19657/j.geoscience.1000-8527.2018.02.13

• 成矿预测与评价 • 上一篇    下一篇

安徽省铜陵焦冲Au矿床地质-地球化学建模与深部找矿

庞宗1(), 王功文1(), 张帅1, 郭东伟1, 陈林杰2, 谢佳雨2   

  1. 1.中国地质大学(北京) 地球科学与资源学院,北京 100083
    2.安徽省地质矿产勘查局321地质队,安徽 铜陵 244033
  • 收稿日期:2017-10-11 修回日期:2018-03-15 出版日期:2018-04-10 发布日期:2018-05-07
  • 通讯作者: 王功文,男,教授,博士生导师,1972年出生,矿产普查与勘探专业,从事三维地质建模与资源定量评价工作。Email: gwwang@cugb.edu.cn
  • 作者简介:庞 宗,男,硕士研究生,1994年出生,矿产普查与勘探专业,从事三维矿产资源预测与评价工作。Email: cugbpangzong@163.com
  • 基金资助:
    国家自然科学基金面上项目(41572318)

Geological-Geochemical Modeling and Deep Exploration of Jiaochong Au Deposit in Tongling District of Anhui Province

PANG Zong1(), WANG Gongwen1(), ZHANG Shuai1, GUO Dongwei1, CHEN Linjie2, XIE Jiayu2   

  1. 1. School of Earth Sciences and Resources,China University of Geosciences,Beijing 100083,China
    2. No.321 Geological Team, Anhui Bureau of Geology and Mineral Resources, Tongling, Anhui 244033, China
  • Received:2017-10-11 Revised:2018-03-15 Online:2018-04-10 Published:2018-05-07

摘要:

长江中下游地区是我国重要的Cu(Au)成矿带,位于该区的安徽省铜陵矿集区是我国深部找矿示范重点攻关地段,而焦冲金矿是铜陵矿集区中的典型金矿,且位于铜陵狮子山矿田西南找矿有利远景区。利用GOCAD建模技术方法,以焦冲矿区-420 m至-820 m的中段图、钻孔数据为依据,建立了研究区矿体、含矿岩体和岩性地层三维模型。在此基础上,结合矿床地质特征,分析了含金黄铁矿标型矿物热电性特征与规律,圈定了两个找矿有利靶区。研究成果对于研究区深部靶区优选和工业采矿具有重要的参考价值,对长江中下游地区深部找矿技术发展起到示范作用。

关键词: 三维地质建模, GOCAD软件, 黄铁矿热电性, 空间分析, 金矿, 铜陵矿集区

Abstract:

The Yangtze River’s middle and lower reaches are important Cu (Au) metallogenic belts in China. Tongling ore concentration area of Anhui Province is located in the belt and it is also a deep mineral exploration demonstration district in China. The study area (Jiaochong gold deposit) is located in a favorable prospecting zone at the southwest of Shizishan ore field in Tongling district. In this paper, the three-dimensional models of orebodies, Au-bearing rocks and lithologic strata in the study area are constructed using GOCAD modeling method, which is based on the middle section of -420 m to -820 m levels and drillhole dataset in Jiaochong gold deposit. Geological characteristics, the thermoelectricity features of pyrite as regularity of Au-bearing standard mineral were analyzed, and two prospecting targets were identified. The research results have an important reference for the deep mineral exploration and mining in the Yangtze River’s middle and lower reaches.

Key words: 3D geological modeling, GOCAD software, thermoelectricity of pyrite, space analysis, gold deposit, Tong-ling ore concentration area

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