激发极化法在呼市草原水源勘探中的应用  

Application of Induced Polarization Method in Hulun Buir Steppe Water Source Exploration

作　　者：孟建春 池海 

机构地区：[1]内蒙古煤田地质局109勘探队,内蒙古呼伦贝尔市021008

出　　处：《中国煤田地质》2006年第2期62-63,68,共3页Coal Geology of China

摘　　要：在呼市草原古隆起带,第四系地层沉积较薄,地下1～5m即为安山岩,玄武岩和火山碎屑岩,找水有一定难度。为得到可靠的电性参数,减小测量误差,应保证一次电位差不于小300mV,并采用无极差电极作测量电极,以增大Ip测量信号。在总结该区实测资料的基础上,绘制出不同富水程度的地电响应特征。Water research is rather difficult in the ancient uplift zone in Hulun Buir steppe, because of thin Quaternary deposit, and andesite, basalt and pyroclastic rocks just 1-5m below surface. For reliable electric parameters and least measurement errors, the primary potential difference must not be less than 300 mV, to use rangeless electrodes as potential electrodes for amplification of I p measuring signals. Based on measuring data summarization, geoelectric response characteristics of different water yield properties were plotted.

关 键 词：一次电位著 装置系数 无极差电极 输入阻抗 激发极化 

分 类 号：P613.324[天文地球—矿床学]