(中南工業(yè)大學(xué)， 長沙 410083)
摘 要: 根據(jù)巖礦石標(biāo)本的內(nèi)電流、充放電時間特性曲線、分解電勢等實(shí)驗(yàn)數(shù)據(jù)資料，論證了石墨礦固液相界面反應(yīng)電阻充分大。在野外常規(guī)的穩(wěn)定直流電場作用下，固液相界面的極化電勢不過數(shù)百毫伏，未能達(dá)到析出氫氣、氧氣的分解電勢值，石墨礦體內(nèi)部傳導(dǎo)電流很小，因而在穩(wěn)態(tài)極化電流場中，起到了排斥電流的作用，它可與高阻地質(zhì)體等效。
關(guān)鍵字: 激發(fā)極化法 石墨礦 微電流場
（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
