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| 不同电阻率测深方法对旁侧不均匀体的反映 | |
| 引用本文： | 强建科,阮百尧.不同电阻率测深方法对旁侧不均匀体的反映[J].物探与化探,2003,27(5):379-382. |
| 作者姓名： | 强建科 阮百尧 |
| 作者单位： | 1. 中国地质大学,湖北,武汉,430074;桂林工学院,广西,桂林,541004 2. 桂林工学院,广西,桂林,541004 |
| 摘 要： | 利用三维有限元数值模拟,重点研究了旁侧三维不均匀体所产生的视电阻率的影响问题,展示了4种常规电阻率测深法在旁侧不均匀体上的异常分布特点;探讨了测深点正下方目标体异常与旁侧不均匀体异常的区别问题,指出旁侧不均匀体的影响是产生电阻率法假异常的主要原因之一. |
| 关 键 词： | 电阻率测深 旁侧不均匀体 异常区分 三维数值模拟 |
| 文章编号： | 1000-8918(2003)05-0379-04 |
| 收稿时间： | 2002-12-05 |
THE REFLECTION OF THE LATERAL INHOMOGENEOUS BODY BY DIFFERENT RESISTIVITY SOUNDING METHODS |
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| Institution: | 1. China University of Geosciences, Wuhan 430074, China; 2. Guilin Institute of Technology, Guilin 541004, China |
| Abstract: | The successful application of the 3-D finite element method for numerical modeling makes it possible to study the lateral inhomogeneous body. This paper mainly discusses the influence of the lateral 3-D inhomogeneous body upon the approximate resistivity. The anomaly characteristics of the inhomogeneous body are shown by four kinds of resistivity sounding methods. The anomaly differences between the objective and the inhomogeneous body are also illustrated. It is pointed out that the influence of the inhomogeneous body is one of the chief causes responsible for the false resistivity anomaly. |
| Keywords: | lateral inhomogeneous body 3-D numerical modeling DC resistivity sounding method multi-solution property |
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