| 谱激电法中频率相关系数的应用 |
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| 引用本文： | 罗延钟,吴之训.谱激电法中频率相关系数的应用[J].地球物理学报,1992,35(4):490-500. |
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| 作者姓名： | 罗延钟 吴之训 |
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| 作者单位： | 1. 中国地质大学 武汉 430074;
2. 地质矿产部第一综合物探大队 蚌埠 233004 |
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| 摘 要： | 从电子导体激发极化（过电位）的电化学机理出发,导出了面极化系数的频谱表示式,得出面极化频率相关系数 c（s）=0.5-1;从理论上证明了利用Cole-Cole模型描述体极化激电频谱的合理性,说明体极化频率相关系数c≤c（s）.理论算例和实测结果表明,可以利用视频率相关系数在极化围岩背景上划分局部异常体,并按结构（矿物颗粒均匀程度和连通情况）区分引起激电异常的极化体.因此,在谱激电法中应重视这一参数的应用.
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| 关 键 词： | 谱激电法 频率相关系数 |
THE APPLICATION OF FREQUENCY DEPENDENT FACTOR IN SPECTRAL INDUCED POLARIZATION METHOD |
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| Luo YAN-ZHONG.THE APPLICATION OF FREQUENCY DEPENDENT FACTOR IN SPECTRAL INDUCED POLARIZATION METHOD[J].Chinese Journal of Geophysics,1992,35(4):490-500. |
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| Authors: | Luo YAN-ZHONG |
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| Affiliation: | China University of Gcosciences,Wuhan,430074;
2. No. 1 Exploration Geophysics Research Party of the Ministry of Geology and Mineral Resources, Anhui Bengbu, 233005 |
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| Abstract: | Based on the electrochemical mechanism of the electronconductor's IP, the frequency spectral expression formula of surface polarization factor is drived, and the frequency dependent factor for the surface polarization c（s） is determinated between 0.5-1. The rationality of using the Cole-Cole model to describe the volume IP frequency spectrum is proved in theory, therefore, the dependent factor for the volume polarization c≤c（s） The results obtained from calculation and measurement show that the apparent frequency dependent factor could be used to determinate the local anomalous body and to discriminate the polarizable body according to the struc--ture. It is seen that the frequency dependent factors are taking an important role in SIP method and should be paid proper attention. |
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| Keywords: | Spectral induced polarization (SIP) Frequency dependent factor |
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