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本文简要叙述了冻土电阻率的变化及其影响因素，同时介绍了在某砂金矿床上用电阻率测深法探测夏季永久冻土融化层深度的效果。结果表明，用密点距、小极距的电阻率测深法，完全可以在要求精度范围内探测融化层深度的变化。
In this paper, the variation of resistivity of permafrost and its influencing factors are briefly described. At the same time, the effect of resistivity sounding on the depth of thawing permafrost melts in a certain gold deposit is introduced. The results show that the density of the pitch, the small polar distance resistivity sounding method, can be accurately detected within the scope of the melting depth changes.