电勘探是地球物理探矿方法的一种,是地质工作中的一种新的勘探方法。由于各种岩石电学性质的不同和工作方法的差别,电勘探又可分为許多种,而对石墨矿勘探最有效的方法是自然电流法。这种方法是利用石墨矿物的电化学性质而产生的电流进行勘探的。这种电流在矿体周围流动,形成了天然的电場?瓒缘鐖龅墓蹨y,卽可了解和确定矿体的形状和位置。自然电流法,在野外测定时用电位計测量。观測时,把电位計上的两个电极用导线接好,其中一个极M放在一点(固定点)不动。另一个极N为一条测线 Electric exploration is a kind of geophysical prospecting method, which is a new exploration method in geological work. Due to the difference of electrical properties and working methods of various rocks, electrical exploration can be divided into many kinds, and the most effective method for graphite mine exploration is natural current method. This method is based on the electrochemical properties of graphite minerals generated by the current exploration. This current flow around the ore body, forming a natural electric field 瓒 edge 鐖 龅 tomb 蹨 y, 卽 to understand and determine the shape and location of the ore body. Natural current method, measured in the field measured with a potentiometer. Observation, the potentiometer on the two electrodes connected with a wire, one pole M on a little (fixed point) does not move. The other pole N is a line