| 频率域激发极化法在西藏哈拉山铅锌矿区的应用 |
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| 引用本文： | 朱朝吉,周肇武,王智茂.频率域激发极化法在西藏哈拉山铅锌矿区的应用[J].地质与资源,2010,19(1):67-70. |
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| 作者姓名： | 朱朝吉 周肇武 王智茂 |
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| 作者单位： | 青海省有色地质矿产勘查院, 青海 西宁 810007 |
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| 摘 要： | 哈拉山铅锌矿床属高锌高氧化矿,矿区海拔高度4300 m以上.矿体赋存在断裂构造带内的次级构造破碎带中.区内岩性较为简单,矿体与围岩有一定的电性差异,通过频率域激电测量,圈定出低缓视幅频率(F)s异常,经综合分析推测为矿异常.经工程揭露,圈定出数条高氧化铅锌矿体.说明在一定的地质环境下,频率域激电法对寻找氧化矿有较明显的效果.
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| 关 键 词： | 频率域激电 地球物理特征 低缓异常 铅锌氧化矿 西藏 |
| 收稿时间： | 2009-04-07 |
THE APPLICATION OF FREQUENCY-DOMAIN INDUCED POLARIZATION METHOD IN THE HALASHAN LEAD-ZINC ORE FIELD IN TIBET |
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| ZHU Chao-ji,ZHOU Zhao-wu,WANG Zhi-mao.THE APPLICATION OF FREQUENCY-DOMAIN INDUCED POLARIZATION METHOD IN THE HALASHAN LEAD-ZINC ORE FIELD IN TIBET[J].Geology and Resources,2010,19(1):67-70. |
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| Authors: | ZHU Chao-ji ZHOU Zhao-wu WANG Zhi-mao |
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| Institution: | Qinghai Institute of Geoexploration for Non-ferrous Metals, Xining 810007, China |
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| Abstract: | The Halashan lead-zinc deposit contains high-Zn ore with high oxidation. The altitude of the ore field is above 4300 m. The ore bodies are controlled by the secondary structures of the major fault belt. The rocks in the deposit are lithologically simple. The electrical features of the ore bodies are different from those of the wallrocks. By measurement of frequency-domain induced polarization method, small-amplitude low-gradient anomalies of frequency （Fs） are delineated. Analysis shows that they are anomalies related to mineralization. With geological projects, several highly oxidized Pb-Zn ore bodies are found. This method is therefore verified to be effective in searching such ore at similar situation. |
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| Keywords: | frequency-domain induced polarization geophysical feature small-amplitude low-gradient anomaly oxidized lead-zinc deposit Tibet |
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