综合物探在会宁县罐子峡M区块石墨矿勘查中的应用

doi:10.11720/wtyht.2021.2400

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摘要

会宁县罐子峡M勘查区地处黄土高原丘陵沟壑区,具有较好的石墨矿勘查前景。对勘查区内石墨矿成矿地质条件进行分析,选择石墨矿化有利地段开展物探工作。采取双频激电中梯剖面测量视幅频率、视电阻率及自然电场电位法测量自然电位这两种方法圈定石墨矿化异常,矿化异常表现为视幅频率高、视电阻率低和自然电位负异常较高的异常特征,在此基础上采用激电测深方法查明矿化异常体的空间展布特征;多种方法相互佐证为钻探提供依据。经钻探验证,钻遇石墨矿2层,取得了较好的勘查成果。

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	孙海川
	许兴荣
	王亚峰

关键词 ：石墨矿勘查, 矿化异常, 双频激电中梯剖面测量, 自然电场电位测量, 激电测深

Abstract：

The Guanzixia M exploration area in Huining County is located in the hilly and gully area of the Loess Plateau,which has a good prospect of prospecting for graphite ore. Firstly, graphite ore metallogenic conditions in the exploration area are analyzed. Then, the geophysical work is carried out in the favorable area of graphite mineralization. Adopting the dual frequency induced polarization intermediate gradient to measure the apparent amplitude frequency, apparent resistivity and the natural electric field adopted to measure natural,the two methods are used to delineate graphite mineralization anomalies,which are characterized by high amplitude frequency, low apparent resistivity and negative anomaly of natural potential. On this basis, the induced polarization sounding is used to find out the spatial distribution characteristics of mineralized anomalous bodies, and provides evidence for drilling through various methods. It has been verified by drilling that 2 layers of graphite ore are drilled, and obtained good exploration results.

Key words： graphite ore exploration mineralization anomaly dual frequency induced polarization intermediate gradient profile measurement natural electric field potential measurement induced polarization sounding

收稿日期: 2020-03-11 修回日期: 2020-10-21 出版日期: 2021-06-20

ZTFLH:

P631

基金资助:甘肃省基础地质调查项目(201764)

作者简介: 孙海川(1985-),男,宁夏银川人,硕士,高级工程师,主要从事地质勘查与研究工作。

引用本文:

孙海川, 许兴荣, 王亚峰. 综合物探在会宁县罐子峡M区块石墨矿勘查中的应用[J]. 物探与化探, 2021, 45(3): 653-660.
SUN Hai-Chuan, XU Xing-Rong, WANG Ya-Feng. The application of integrated geophysical method to the exploration of Guanzixia graphite ore deposit in M area of Huining County. Geophysical and Geochemical Exploration, 2021, 45(3): 653-660.

链接本文:

https://www.wutanyuhuatan.com/CN/10.11720/wtyht.2021.2400 或 https://www.wutanyuhuatan.com/CN/Y2021/V45/I3/653

Fig.1 勘查区地质及物探工程布置

Table 1 勘查区岩(矿)石露头物性测量统计

Fig.2 1、2线自然电位与双频激电中梯测量综合剖面

Fig.3 河流的过滤电场分布示意

Fig.4 1、2线激电测深综合剖面

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