地球磁场起源之粒子起电问题研究  

Analysis of how the particles generate electricity aimed at probing the origin of geomagnetic field

作　　者：刘全稳[1] 王威[1,2] 李臻[1] 

机构地区：[1]西南石油大学,四川成都610500 [2]中海石油(中国)有限公司天津分公司,天津300452

出　　处：《地学前缘》2012年第6期260-268,共9页Earth Science Frontiers

基　　金："油气藏地质及开发工程"国家重点实验室项目(国重科研G3)

摘　　要：粒子起电问题是解决地球磁场起源中固体地球内部电流形成问题的关键之一。通过引述电化学领域二相流起电机制,建立了有利于分析地球磁场起源的固体地球内部物质流动的双电层模型结构,即液/液界面双电层模型和液/固界面双电层模型,分析了地球外核物质流动及流动起电问题。在地球运动动力和运动定律作用下,地球外核物质的定向移动是形成地下电流、产生磁场的直接原因。研究了形成地磁场电流的一般算法及影响因素,探讨了"静电"的"动电"本质,讨论了双电层模型的适应性、起电电荷电性变化、局部气旋电流、磁异常等问题。指出固体地球内部物质起电电荷电性的改变是地磁场极性倒转主要原因。How the particles generate electricity is one of the critical points to solve the problem of electricity-generation relating to the origin of the geomagnetic field within the solid earth.By citing the electricity-generation mechanism for the two-phase flow in the electrochemistry field,we constructed the model structure of the double electrode layer for substance flowing within the solid earth.The model is helpful to analyze the origin of the geomagnetic field.Two models of double electrode layer are the models of liquid/liquid interface and of liquid/solid interface.The substance flowing and electricity-generation in outer core of the earth was discussed.Under the action of earth movement dynamics and laws,the directional movement of outer core substance of the earth is the direct cause of the occurrence of electricity and of magnetic field in the subsurface.The general algorithm and effective factors of forming electricity of geomagnetic field,the nature of static electricity and dynamic electricity,the applicability of the model of the double electrode layer,the electrical change of the electrification charges,the local cyclone current,and the magnetic anomaly are all discussed in this paper.Finally,it is concluded that the electrical changes of the electrification charges within the solid earth are the principal cause of the polarity reversals of earth＇s magnetic field.

关 键 词：双电层模型结构 流动起电 冲流电流 静电 地球磁场 强中纬力 地球动力学 

分 类 号：P318.1[天文地球—固体地球物理学]