(中南工业大学， 长沙 410083)
摘 要: 根据岩矿石标本的内电流、充放电时间特性曲线、分解电势等实验数据资料，论证了石墨矿固液相界面反应电阻充分大。在野外常规的稳定直流电场作用下，固液相界面的极化电势不过数百毫伏，未能达到析出氢气、氧气的分解电势值，石墨矿体内部传导电流很小，因而在稳态极化电流场中，起到了排斥电流的作用，它可与高阻地质体等效。
关键字: 激发极化法 石墨矿 微电流场
（Centrol South University of Technology, Changsha 410083）
Abstract:Based on laboratory data, such as, the internal current, feature curve of charge and discharge current versus time, and decomposition potential of rock sample, the reaction resistance of the interface between solidstate graphite ore and liquid phase has proved to be very high; so that when an ordinary stable direct electric field was applied, the current of eletrochemistry reaction is tending towards zero, and the polarization voltage over the interface between solidstate and liquid-phase is less than hundred millivolts which is too small to reach the decomposition voltage for hydrogen and oxygen separation. The internal current of graphite ore is tending little, so that it plays a role of excluding current within a stable polarization electric field, and it is equivarlent to a high resistivity body.
Key words: induced polarization graphite ore microelectric field
