综合物探方法在维拉斯托铜多金属矿床北侧寻找隐伏矿体的应用

doi:10.11720/wtyht.2019.0293

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摘要

维拉斯托铜多金属矿床北侧第四系覆盖严重,用地表地质手段很难发现该区是否存在隐伏矿体,因此,本文在系统梳理地质资料的基础上,综合运用重力、磁法、激电中梯及CSAMT法对该区进行了勘查工作,通过以上工作,在该区推断出3条断裂,圈定出2处找矿靶区,通过钻孔验证,成功找到一处隐伏矿体,总结出一套在覆盖区寻找隐伏矿体的技术方法组合。

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	王振亮
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关键词 ：重力, CSAMT, 铜多金属矿, 隐伏矿体

Abstract：

The northern area of the Weilasituo copper polymetallic deposit is covered seriously. It is difficult to find concealed orebody with the surface geological means; therefore, in this paper, based on the study of geological data, the authors investigated the study area by using the comprehensive exploration methods such as gravity, magnetic survey, induced polarization in median gradient array and CSAMT. On such a basis, three faults were detected through inference, two metallogenic prediction target areas were delineated and, by drilling, a concealed orebody was successfully found. The combinational technologies and methods in the search for concealed orebodies in the coverage area was summarized.

Key words： gravity CSAMT copper polymetallic deposit concealed orebody

收稿日期: 2019-05-27 出版日期: 2019-10-25

P631

基金资助:中国地质科学院基本科研业务费项目(AS2017J04);中国地质调查局项目(1212011120202)

作者简介: 王振亮(1985-),男,硕士,工程师,从事矿产普查与勘探工作。Email: wzl_217@163.com

引用本文:

王振亮, 邓友茂, 孟银生, 刘瑞德. 综合物探方法在维拉斯托铜多金属矿床北侧寻找隐伏矿体的应用[J]. 物探与化探, 2019, 43(5): 958-965.
Zhen-Liang WANG, You-Mao DENG, Yin-Sheng MENG, Rui-De LIU. The application of integrated geophysical prospecting method to the prospecting for concealed orebodies in the northern area of the Weilasituo copper polymetallic deposit. Geophysical and Geochemical Exploration, 2019, 43(5): 958-965.

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https://www.wutanyuhuatan.com/CN/10.11720/wtyht.2019.0293 或 https://www.wutanyuhuatan.com/CN/Y2019/V43/I5/958

Fig.1 大兴安岭中南段大地构造简图^[33]

Fig.2 研究区地质简图

Table 1 研究区岩矿石物性统计

Fig.3 研究区工程布置

Fig.4 研究区布格重力等值线(红色虚线为推断断层)

Fig.5 研究区磁场等值线

Fig.6 研究区磁场上延500 m等值线

Fig.7 研究区视充电率等值线

Fig.8 研究区激电中梯视电阻率等值线

Fig.9 0线CSAMT电阻率反演剖面

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