高密度电法与音频大地电磁法在四川某地热勘探中的应用  

Application of High-density Electrical Method and Audio Magnetotelluric Method in a Geothermal Exploration in Sichuan Province

作　　者：张林[1] 雷宛[1] 胡旭[1] 孙东 李大猛 Zhang Lin;Lei Wan;Hu Xu;Sun Dong;Li Dameng(Chengdu University of Technology;Sichuan Engineering and Technology Center of Groundwater Pollution Control for Environmental Protection)

机构地区：[1]成都理工大学,成都市610059 [2]四川省环境保护地下水污染防治工程技术中心,成都市610000

出　　处：《勘察科学技术》2018年第6期55-58,共4页Site Investigation Science and Technology

摘　　要：地热是一种天然的可再生能源,可用于供热、发电以及医疗等方面,开发前景极为广阔。四川省石棉地区处于地质构造强烈活动带且具有丰富的地热资源。采用高密度电阻率法与音频大地电磁法(AMT)对研究区某断裂进行勘探,获得了丰富的浅部和深部电性结构。通过在反演图像上识别含水破碎带的低电阻率特征并确定地热资源的分布和勘探有利部位,提高了地热资源勘探的准确性。The geothermal is a natural and renewable energy source,which can be used for heating supply,power generation,medical treatment and so on,and the development prospect is extremely broad.The Shimian area in Sichuan Province locates in the geological structure belt with strong activity,and it has abundant geothermal resources. The high-density resistivity method and audio magnetotelluric method( AMT) are used to explore a fracture in the study area,and abundant shallow and deep electrical structures are obtained. The accuracy of geothermal exploration is improved by identifying the low resistivity characteristics of water-bearing fractured zones on inversion images and determining the distribution and favorable exploration sites of geothermal resources.

关 键 词：高密度电法 音频大地电磁法 地热勘探 断裂 

分 类 号：P314[天文地球—固体地球物理学] P631.32[天文地球—地球物理学]