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前言众所周知,在石墨矿床、无烟煤田及石墨化地层上,往往可观测到较强的自电异常.对含炭地质体自然极化机理的研究,并未取得明确的结论.A·C谢苗诺夫指出:石墨矿床和煤系产生自然电场的主要原因可能是赋存有硫化矿物;??斯维什尼科夫认为:石墨等矿床在本质上具有另外一种电化学性质,其自然电场形成机理不同于金属硫化矿床;邓涛声对石墨矿体自然极化的机理也作了初步研究. 本文根据含炭地质体中通常含有黄铁矿物的特点,结合石墨、无烟煤、烟煤、褐煤、炭质页岩的导电性及电极电位的观测资料,探讨了含炭地质体的自然极化机理.在风化环境中,黄铁矿
Foreword It is well known that strong self-anomalies can often be observed in graphite deposits, anthracite coal beds and graphitized strata, and no definite conclusion has been reached on the natural polarization mechanism of carbonaceous geological bodies. Nove pointed out that the main reason for the natural electric field generated by graphite deposits and coal measures may be the occurrence of sulfide minerals; Svishnikov believes that the deposits of graphite and other minerals have another electrochemical property in nature and that their natural electric field Forming mechanism is different from that of metal sulfide ore deposits.Deng Tao Sheng also made a preliminary study on the mechanism of natural polarization of graphite ore body.According to the characteristics of pyrite minerals usually contained in the carbonaceous geological body and combined with graphite, anthracite, bituminous coal, lignite , Conductivity of carbonaceous shale and electrode potential observation data to investigate the natural polarization mechanism of carbonaceous geological body.In the weathering environment, pyrite