摘要
对两种在频率域激发极化法中广泛采用的复Cole-Cole模型复电阻率频谱进行了理论对比分析.在参数取值相同时,二者复电阻率幅值和相位频谱存在较大差异;在同类参数变化量相同的情况下,两种模型复电阻率的幅值和相位变化量的频谱也不相同,相位变化量的差异大于幅值变化量的差异;不同的参数增加或减少时,对变化量的影响也不一样.研究揭示了在进行反演时因为两种模型选择上的不同,对反演结果造成差异的原因,为更深入研究激发极化效应机理,探究一种统一准确的极化模型提供了理论基础.
The complex resistivity spectrums of two complex Cole-Cole models which are widely used in induced polarization method of frequency domain are comparatively analyzed in theory. It shows that at the same parameter values, there is a big difference among the two complex resis- tivity amplitudes and phase spectrums. When the same kind of parameter changes in same a- mount ,the changes in phase spectrums are larger than those of amplitudes. When different pa- rameters increase or decrease, the influences on the changes of quantity are different. It reveals the cause of the difference on the inversion results when use different kind models. It would pro- vide some references for exploring the more accurate polarization model and studying the mecha- nism of the induced polarization effect.
出处
《山东理工大学学报（自然科学版）》
CAS
2013年第5期5-9,共5页
Journal of Shandong University of Technology:Natural Science Edition
基金
国家自然科学基金资助项目(61170060)
国家地球物理探测仪器工程技术研究中心开放基金资助项目(20130026)
