论文部分内容阅读
前言在印度东北部的梅加拉亚高原进行了自然电场法勘探,在山上观测到特别强大的负自电反应.自电法在那里是物探综合找矿手段之一.在山上西隆群石英岩和砂质岩层上观测电位,测得的剖面好象是山的反射镜像.山峰顶点附近的电位高达-1940毫伏,通常这种机电异常反应的特点是,有与地形梯度成比例的、宽的“电位低”,或者叫作“凹槽”.不过在某些地方,异常的形状与在硫化矿带上测到的自电表示对应.因此有必要把机电效应产生的电位从中区分出来,以
Preface The natural electric field method was explored in the Meghalaya Plateau in northeastern India and a particularly strong negative self-electrokinetic reaction was observed in the mountains where the self-electric method is one of the means of comprehensive geophysical prospecting.Silk Silks Quartz Rocky and sandy formations, the measured profile appears to be a mirror image of the mountain.The potential near the apex of a mountain is as high as -1940 millivolts, and the typical anomaly of this electromechanical response is characterized by a gradient proportional to the topographic gradient, Wide, “low potential” or “groove.” However, in some places the unusual shape corresponds to the self-electric representation measured on the sulphide zone, and it is therefore necessary to distinguish the potential generated by the electromechanical effect from it To