大地电磁探测在华北复杂城区地热调查中的应用研究  

Application Research of MT Detection in Geothermal Survey of Complex Urban Areas in North China

作　　者：蒋喜昆[1] Jiang Xikun(Hydrogeological Geophysical Prospecting and Surveying Team,CNACG,Handan,Hebei,056000)

机构地区：[1]中国煤炭地质总局水文物测队,河北邯郸056000

出　　处：《中国煤炭地质》2022年第S01期152-158,共7页Coal Geology of China

摘　　要：地热资源因其具有重要的经济开发价值和社会意义越来越受欢迎,而地质调查方法难以查明中深部的构造发育特征,因此可以选择地球物理勘探方法作为中深部地热资源调查的重要补充手段。在物探众多方法中,大地电磁法因其探测深度大、分辨率高广受欢迎,但由于大地电磁法采集天然场源,抗干扰能力弱,人文干扰地区的资料解译精度往往会受到一定的影响。就大地电磁法在华北平原城区地热调查中的数据采集和处理解译提出针对性的见解,有效证明了大地电磁测深法在复杂城区地热资源勘查中的有效性。Geothermal resources are becoming more and more popular because of their important economic development value and social significance.Geophysical exploration can be used as an important supplementary wheregeological survey methods are difficult to identify the middledeep structural characteristics.Among many methods of geophysical exploration,the magnetotelluric method is very popular because of its large detection depth and high resolution.However,due to the weak anti-interference ability of natural field sources collected by magnetotelluric method,the accuracy of data interpretation in areas with human interference is often limited to a certain extent influences.This paper puts forward specific opinions on the data acquisition,processing and interpretation of the magnetotelluric method in the urban geothermal survey of the North China Plain,and effectively proves the effectiveness of the magnetotelluric sounding method in the exploration of geothermal resources in complex urban areas.

关 键 词：大地电磁法 视电阻率 地热 构造 

分 类 号：P315.9[天文地球—地震学]