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一、前言磁电阻率法(MMR)是一种通过观测介质中一次电流的磁场,而研究地下导电率变化的一种方法;磁激发极化法(MIP)则是通过测量介质中二次电流(即极化电流)所形成的磁场,而获得地下激发极化信息的一种方法。前者用于发现由岩、矿石导电率的差异而引起的异常;后者用于发现由岩、矿石电化学特性的差异而引起的异常,两者是相辅相成的。
I. INTRODUCTION Magnetoresistive method (MMR) is a method of studying the change of underground conductivity by observing the magnetic field of the primary current in the medium. The magnetization induced polarization (MIP) is a method of measuring the secondary current (Ie, polarization current) formed by the magnetic field, and to obtain a method of underground excitation polarization information. The former is used to find the anomalies caused by the difference in electrical conductivity between rock and ore. The latter is used to find the anomalies caused by the differences in the electrochemical properties between rock and ore, and the two are mutually reinforcing.