双频激电法在贵州乌蒙山区杜家桥铅锌矿勘查中的应用

蒙应华; 王永泰; 杨仕欲

doi:10.19388/j.zgdzdc.2022.06.07

双频激电法在贵州乌蒙山区杜家桥铅锌矿勘查中的应用

蒙应华^1,2,,
王永泰^1,2,
杨仕欲^1,2

1.
贵州省地质调查院,贵州贵阳 550081
2.
贵州省地质物探开发应用工程技术研究中心,贵州贵阳 550081

基金项目: 中国地质调查局“乌蒙山区地质矿产综合调查(编号: 资[2015]02-03-03-024)”项目资助

详细信息

作者简介:
蒙应华(1982—),男,高级工程师,主要从事电法、电磁法物探工作。Email: 75421473@qq.com。

中图分类号: P631.3
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出版历程
- 收稿日期: 2021-02-07
- 修回日期: 2021-09-13
- 刊出日期: 2022-12-19

Application of Dual Frequency IP method in the exploration of Dujiaqiao lead-zinc mine in Wumeng Mountain area of Guizhou

1.
Guizhou Institute of Geological Survey,Guizhou Guiyang 550081,China
2.
Guizhou Engineering Research Center for Geological-Geophysical Exploration Development and Application, Guizhou Guiyang 550081,China

摘要

摘要: 杜家桥铅锌矿地处贵州乌蒙山区,在基本掌握研究区地质背景与地球物理特征的基础上,开展了物探双频激电法测量工作。介绍了激电中梯和对称四极测深的装置类型及工作方法,并结合研究区地质特征和老硐调查资料,对物探异常进行了推测解译,分析总结了两种方法在杜家桥铅锌矿勘查中的综合应用效果。结果表明: 激电中梯与对称四极测深均能有效获取明显的激电异常; 视电阻率密集梯度变化带应为断裂引起,低阻高极化异常是铅锌矿成矿的有利部位,具有找矿意义。经钻探工程验证,物探推测解释成果与钻探结果吻合较好,说明双频激电法在贵州乌蒙山区铅锌矿勘查中取得了良好的地质效果。
- 双频激电法 /
- 铅锌矿 /
- 视电阻率 /
- 视极化率 /
- 贵州乌蒙山
Abstract: Dujiaqiao lead-zinc mine is located in Wumeng Mountain of Guizhou. On the basis of geological background and geophysical characteristics, the authors carried out Dual Frequency IP survey in this area. The equipment type and working method of IP middle ladder and symmetrical quadrupole sounding were introduced, and the geophysical anomalies were interpreted combined with geological characteristics and Laodong survey data. And the comprehensive application effect of these two methods was summarized and analyzed during the exploration of Dujiaqiao lead-zinc mine. The results show that the apparent anomalies are obvious in the IP middle ladder survey and symmetrical quadrupole sounding. So the authors deduce that the densely gradient variation of apparent resistivity is caused by the fracture structure, and the low-resistance and high-polarization anomalies are the favorable positions for lead-zinc mineralization, which has an important significance in ore search. The drilling verification indicates that the geophysical prospecting interpretation is in accordance with the drilling results, showing that Dual Prequency IP method is of geological efficiency in lead-zinc mine exploration in Wumeng Mountain.
- Dual Frequency IP method /
- lead-zinc mine /
- apparent resistivity /
- apparent polarization /
- Wumeng Mountain area of Guizhou

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