广域电磁法与可控源音频大地电磁法探测效果对比研究——以浙西北巨厚沉积岩地区为例  

Detection effectcomparison between wide field electromagnetic method and CSAMT method in huge thick sedimentary rock area in northwest Zhejiang Province

作　　者：刘泽丞 梁红波 王汉卿 朱国强 LIU Zecheng;LIANG Hongbo;WANG Hanqing;ZHU Guoqiang(Zhejiang Engineering Geophysical Prospecting Institute Co.,Ltd.,Hangzhou 310000,Zhejiang,China;Zhejiang Geophysical and Geochemical Prospecting Academy,Hangzhou 310000,Zhejiang,China)

机构地区：[1]浙江省工程物探勘察院有限公司,浙江杭州310000 [2]浙江省地球物理地球化学勘查院,浙江杭州310000

出　　处：《资源信息与工程》2022年第3期91-94,共4页Resource Information and Engineering

摘　　要：可控源音频大地电磁法一直被广泛用于寻找地热资源。近年来,广域电磁法以其探测深和抗干扰能力强等特点,在电磁法领域的地位日渐凸显。文章以浙西北巨厚沉积岩地区地热勘探为例,对比分别采用CSAMT法和WFEM法两种方法测量结果,认为WFEM法不受近区以及过渡区的影响,具有测量深度更深、精度更高、抗干扰能力更强等优势。Controlled source audio magnetotelluric method(CSAMT) has been widely used to prospect geothermal resources.In recent years,wide field electromagnetic method(WFEM) has gradually had arole in electromagnetic law with its features of deep detection and strong anti-interference ability.Taking geothermal exploration in the thick sedimentary rock area of northwest Zhejiang as an example,this paper compared the results ofCSAMT method and WFEM method,and evaluated the advantages and disadvantages.WFEM method was not affected by the near area or the transition area,and had the advantages of deeper measurement depth,higher accuracy and stronger anti-interference ability.

关 键 词：CSAMT WFEM 地热资源 浙西北 沉积岩 

分 类 号：P631[天文地球—地质矿产勘探]