摘要
在可控源音频大地电磁法(CSAMT)野外勘查中,往往会存在场源效应的影响,而且场源效应也是长期以来困扰CSAMT野外施工和数据处理解释的难题。因此,识别场源效应,分析场源效应的影响特征,对CSAMT的实际应用效果非常重要。这里采用野外试验的方法,对场源效应进行了试验对比,初步总结了CSAMT场源效应对其视电阻率和阻抗相位的影响特征。
In the actual survey of CSAMT,there will always be source effects.The source effect is a long-troubled issue of audio-frequency magnetotelluric(CSAMT)'s field work and data processing and interpretation.Therefore,it is very important to analyze the source effect.In this paper,through the field test method,source effect is analyzed by locating the source in different places and geological environment.The laws of the source effect on the apparent resistivity and impedance phase are initially summarized.
出处
《物探化探计算技术》
CAS
CSCD
2011年第5期527-530,464,共4页
Computing Techniques For Geophysical and Geochemical Exploration
