| 同时存在激电和电磁效应的频谱激电异常性质 |
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| 引用本文： | 罗延钟,熊宗厚,崔先文.同时存在激电和电磁效应的频谱激电异常性质[J].物探与化探,1987,11(2):106-114. |
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| 作者姓名： | 罗延钟 熊宗厚 崔先文 |
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| 作者单位： | 武汉地质学院
(罗延钟，熊宗厚)，地矿部第一综合物探队(崔先文) |
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| 摘 要： | 本文根据数值模拟结果讨论了同时存在激电和电磁效应时,频谱激电法的异常性质.指出了低阻和高阻极化体上激电和电磁响应的空间分布形态和频率特性.验证了按两个柯尔- 柯尔模型的组合反演视复电阻率频谱,分离激电和电磁效应的合理性.并利用这种方法反演理论频谱的结果,讨论了激电视频谱参数的异常性态.文中还讨论了覆盖层和非各向同性对频谱激电法异常的影响.
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PROPERTIES OF THE SPECTRAL IP ANOMALY IN COEXISTENCE OF IP AND ELECTEOMAGNETIC EFFECTS |
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| Institution: | 1. Wuhan College of Geology;
2. No.1 Exploration Geophysics Research Party, MGMR |
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| Abstract: | According to numerical simulations, the present paper deals with propertiesof the spsctral IP anomaly when IP and electromagnetic effects coexist, indicatesthe spatial distribution shape and frequency characteristics of IP and electroma-gnetic induction on low-resistivity and high-resistivity polarized object, and veri-fies the reasonability of separating IP effect fIom electromagnetic effect byinversion of apparent complex resistivity frequency spectrum according to com-bination of two Kerr-Kerr models. The results of inversion of theoretical frequ-ency spectrum with this technique are utilized to illustrate the anomalous pro-perties of IP apparent frequency spectrum parameters. In addtion, a discussionis given concerning the effects of overburden and nonisotropy on the anomalyof spectral IP method. |
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