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| Apparent resistivity of azimuthal anisotropy layered media | |
| 作者姓名： | 阮爱国 毛桐恩 李清河 葛双成 |
| 作者单位： | RUAN Ai-guo1，2) MAO Tong-en1) LI Qing-he3) GE Shuang-cheng4) 1) Institute of Geophysics，China Seismological Bureau，Beijing 100081，China 2) Post Doctor Work Station of Institute of Geology，China Seismological Bureau，Beijing 100029，China 3) Seismological Bureau of Jiangsu Province，Nanjing 210014，China 4) Institute of Comprehensive Exploration of Zhejiang，Hangzhou 310011，China |
| 基金项目： | Joint Seismological Science Foundation of China (2001009)，State Natural Science Foundation of China (40074010)，the Project MOST under contract 2001BA601B002-02-01. |
| 摘 要： | Introduction The method of apparent resistivity with direct current (DC) measurement, adopted from geophysical exploration, is one of the most important precursory approaches in earthquake prediction, in which the geo-electric constitutive model is illustrated by the scalar theory Archies law and correspondingly a set of calculation methods for apparent resistivity of layered media has been established (QIAN, et al, 1985; YAO, 1989). But this is not consistent with the fact that in earthqu… |
| 收稿时间： | 11 October 2001 |
| 修稿时间： | 20 April 2002 |
Apparent resistivity of azimuthal anisotropy layered media |
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| Ruan Ai-guo , Mao Tong-en , Li Qing-he and Ge Shuang-cheng.Apparent resistivity of azimuthal anisotropy layered media[J].Acta Seismologica Sinica(English Edition),2002,15(5):526-532. | |
| Authors: | Ruan Ai-guo Mao Tong-en Li Qing-he and Ge Shuang-cheng |
| Institution: | 1. Institute of Geophysics, China Seismological Bureau, Beijing 100081, China; Post Doctor Work Station of Institute of Geology, China Seismological Bureau, Beijing 100029, China 2. Institute of Geophysics, China Seismological Bureau, Beijing 100081, China 3. Seismological Bureau of Jiangsu Province, Nanjing 210014, China 4. Institute of Comprehensive Exploration of Zhejiang, Hangzhou 310011, China |
| Abstract: | The electric field, equations of boundary conditions and calculation formula of apparent resistivity are derived for azimuthal anisotropy layered media with DC method based on anisotropic Ohms law. Taking Schlumberger symmetric system as an example and using recurrence formula of nuclear function, the paper theoretically simulates a model of four layers with the same anisotropy coefficient for each layer. The deep sounding curves of resistivity and the pattern of contours are obtained for the model. The results shows the theoretical formula of this paper is correct, the deep sounding curves not only exhibit the difference of resistivity among layers but also indicate the anisotropy characteristics of layers. |
| Keywords: | layered media azimuthal anisotropy apparent resistivity |
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