[an error occurred while processing this directive] 世界地质 2020, 39(3) 664-668 DOI:   10.3969/j.issn.1004-5589.2020.03.016  ISSN: 1004-5589 CN: 22-1111/P
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本文关键词相关文章
激发极化
赛格尔公式
饱和效应
本文作者相关文章
庄严
李桐林
PubMed
Article by Zhuang Y
Article by Li T
激发极化中的赛格尔近似及饱和效应
庄严, 李桐林
吉林大学地球探测科学与技术学院, 长春 130026
摘要： 为探究激发极化中赛格尔公式的适用性及饱和效应的问题，笔者分析了赛格尔公式推导过程中所做的近似，通过正演模拟分析赛格尔公式的适用范围；并研究了饱和效应问题。结果表明：赛格尔公式不适合用于高极化地质体或复杂极化地电结构模型计算，特别是电性变化剧烈的地电结构情况；饱和效应在理论上存在，且其饱和值与极化体大小有关系。极化体越大，饱和时所对应的地质体电阻率相对围岩电阻率就越低，饱和效应的存在使得激电异常的极大值可能会偏离富集矿体中心。
关键词： 激发极化   赛格尔公式   饱和效应  
Approximation and saturation effect of Seigel formula in induced polarization
ZHUANG Yan, LI Tong-lin
College of Geo-exploration Science and Technology, Jilin University, Changchun 130026, China
Abstract: In order to explore the applicability and saturation effect of the Seigel formula in induced polarization, the approximation during the derivation of the Seigel formula is analyzed, and the scope of application of the Seigel formula is analyzed through forward modeling, and the problem of saturation effects is studied. The results show that the Seigel formula is not suitable for the calculation of highly polarized geological bodies or geoelectric structure models with complex polarization, especially geoelectric structures with drastic electrical changes. The saturation effects exist in theory, and the saturation value is related to the size of the polarized body. The larger the polarized body, the lower the geological body resistivity is relative to the surrounding rock resistivity when saturated. The existence of saturation effect makes the maximum value of the anomaly of polarization deviate from the center of the enriched ore body.
Keywords: induced polarization   Seigel formula   saturation effect  
收稿日期 2020-05-13 修回日期 2020-05-27 网络版发布日期  
DOI: 10.3969/j.issn.1004-5589.2020.03.016
基金项目:

黑龙江地勘基金项目（[2017]03）资助

通讯作者: 李桐林(1962-),男,教授,主要从事电磁法理论与应用教学和研究。E-mail:litl@jlu.edu.cn
作者简介:
作者Email: litl@jlu.edu.cn
参考文献：
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