综合电法在探测海水入侵界面中的研究与应用——以莱州湾地区为例  

Research and application of comprehensive electrical method in detecting saltwater intrusion interface:A case study of Laizhou Bay area

作　　者：苏永军 范翠松[1,4] 赵更新 张国利 刘宏伟 孙大鹏 SU Yong-Jun;FAN Cui-Song;ZHAO Geng-Xin;ZHANG Guo-Li;LIU Hong-Wei;SUN Da-Peng(Tianjin Center,China Geological Survey,Tianjin 300170,China;Institute of Geophysics and Geomatics,China University of Geosciences,Wuhan 430074,China;Key Laboratory of Coast Geo-environment,China Geological Survey,Tianjin 300170,China;North China Center for Geoscience Innovation,Tianjin 300170,China)

机构地区：[1]中国地质调查局天津地质调查中心,天津300170 [2]中国地质大学(武汉)地球物理与空间信息学院,湖北武汉430074 [3]中国地质调查局海岸带地质环境重点实验室,天津300170 [4]华北地质科技创新中心,天津300170

出　　处：《物探与化探》2020年第3期704-708,共5页Geophysical and Geochemical Exploration

基　　金：中国地质调查局地质调查项目“莱州湾地质环境调查评价”(12120113003800);“滦河流域水文地质调查”(DD20190338);“津冀沿海资源环境承载能力调查”(DD20189506)。

摘　　要：应用EH-4电磁成像系统和二维、三维高密度电法在莱州湾地区进行海水入侵界面的探测,利用EH-4电磁成像系统和高密度电法剖面成果查明了研究区海水入侵界线,绘制了该区海水入侵界线成果平面图,并对电性特征进行了梳理。探测结果表明通过这些方法所获得的反演断面图含有丰富的地质信息,能为研究该区地质环境问题提供可靠的地质信息,使用这些物探方法探测莱州湾地区海水入侵界线是有效可行的。该结果为今后在该区开展地质调查研究奠定了基础。In this paper,the authors analyzed cases of applying EH-4 electromagnetic imaging system and 2D,3D high density resistivity method to detecting seawater intrusion interfaces in Laizhou Bay area.The results show that the inversion profile of these methods provides rich and reliable geological information,which can help solve geological environment problem of this region,and these geophysical methods are effective and feasible in detecting seawater intrusion interfaces in Laizhou Bay area.Based on many profiles of EH-4 electromagnetic imaging system and high density resistivity method,the authors successfully figured out the distribution of the seawater intrusion interface,compiled the map of the seawater intrusion interface,and analyzed and sorted out electrical features of the region.These results has laid a solid foundation for the future geological survey in Laizhou Bay area.

关 键 词：莱州湾地区 海水入侵界线 EH-4电磁成像系统 二维高密度电法 三维高密度电法 

分 类 号：P631[天文地球—地质矿产勘探]