西北地质2024，Vol.57Issue(4)：240-251,12.DOI:10.12401/j.nwg.2023024
音频大地电磁测深法在深部地热构造勘查中的应用
Application of Audio Magnetotelluric Sounding in Deep Geothermal Structure Exploration
摘要
Abstract
In order to investigate the deep geothermal structure in Liushan Lake Scenic Area,Sihong County,Jiangsu Province,geological and geophysical data and known exploration borehole data were collected,14 Au-dio Magnetotelluric Sounding(AMT)survey lines were laid,and the resistivity distribution of the shallow geo-logical body at 2000 m in the study area was obtained through data acquisition,pre-processing and inversion.The exploration results show that there was a good low resistance distribution zone in the study area with good continuity,and two deep structural fault f1 and f2 are inferred.Among them,fault f2 is presumed to be large in scale and contains water in the fracture zone,while the upper part of the fracture zone is a complete-more com-plete high-resistance layer,which may be a good cover layer.Therefore,it is speculated that the deep fracture zone f2 has good water-bearing and storage channels,and it is suggested to focus on the location of the low resis-tance anomaly in the tectonic zone to provide a basis for the next drilling placement.关键词
音频大地电磁测深法(AMT)/地热勘查/郯庐断裂带/深部构造/柳山湖Key words
Audio Magnetotelluric Sounding(AMT)/geothermal exploration/Tancheng-Lujiang fault zone/deep structure/Liushan lake分类
天文与地球科学引用本文复制引用
汪名鹏..音频大地电磁测深法在深部地热构造勘查中的应用[J].西北地质,2024,57(4):240-251,12.基金项目
江苏省自然资源厅、江苏省财政厅2017年地质勘查专项资金项目"泗洪县柳山湖旅游风景区地热勘查"(苏财建[2017]160号)资助成果. （苏财建[2017]160号）
