天然音频电磁法

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This page is a translated version of the page Dictionary:Afmag method and the translation is 100% complete.
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音频电磁技术:应用天然电磁噪音的音频段研究地层电阻率的测向变化,定量测量方位角和倾角,或极化椭圆主轴的倾角。参见‘极化椭圆’polarization ellipse。适用范围在1到1000Hz,通常为100–500 Hz.用于矿产勘探和断层及剪切带制图,特别是在地形复杂和植物茂密地区。参见‘天电’sferics