高密度电阻率法地形影响校正  

TERRAIN CORRECTION IN HIGH-DENSITY RESISTIVITY METHOD

作　　者：简兴祥[1] 王绪本[1] 杨利容[1] 高永才[1] 

机构地区：[1]成都理工大学,四川成都610059

出　　处：《物探化探计算技术》2008年第4期303-307,263,共5页Computing Techniques For Geophysical and Geochemical Exploration

基　　金：国家"十五"科技攻关计划基金项目(2004BA810B)

摘　　要：采用有限元法实现高密度电阻率法二维模型的正演模拟,将一定地形条件下的二维地电模型的视电阻率响应,分解为畸变场和正常场二部分进行分析。采用比值法消除由地形引起的畸变场,从而获得水平地形条件下二维地电结构的视电阻率值。在实际资料的校正中,取得了较好的应用效果。With Finite Element Method to simulate the 2D High-Density Resistivity forward model, we divided the apparent resistivity response of 2D High-Density Resistivity model into two parts: normal part and abnormal part, and by using Ratio-Method we removed the abnormal effects of the topography, and got the resistivity value of 2D electric structure without topographic effects. A good result was obtained in a real data processing.

关 键 词：高密度电阻率法 有限元 地形校正 

分 类 号：P631.322[天文地球—地质矿产勘探]