可控源音频大地电磁测深法在地热田勘查中应用效果初探  

Application of Controlled Source Audio-frequency Magnetotellurics to Exploration in the Geothermal Field

作　　者：刘瑞德[1] 黄力军[2] 孟银生[2] 

机构地区：[1]中国地质大学地球物理与信息技术学院,北京100083 [2]中国地质科学院地球物理地球化学勘查研究所,河北廊坊065000

出　　处：《工程地球物理学报》2007年第2期86-89,共4页Chinese Journal of Engineering Geophysics

摘　　要：地热作为新的清洁能源越来越得到重视和开发。我国地热资源以中低温地热田为主,成因类型多为传导型和对流型,其中以沉积盆地隆起传导型地热田最多,这类地热田面积大,资源储量丰富,紧邻城市周围,利用率高,经济效益潜力巨大。地热田勘查方法较多,但以电磁法勘查为主,电阻率异常是指示地热田的重要信息。本文介绍了利用可控源音频大地电磁法在对流型和传导型两种地热田上的成功勘查实例。The geothermal as the cleaning energy source is more and more emphasized and exploited. The low and medium geothermal fields were abundant in our country. The most of them came from convection and conduction. The geothermal fields of upheaval in the deposition basin are widely distributed. It had a large area and plenty of resources and it had high availability and high economic effect because of its closeness with the city. There are many methods to explore geothermal fields, in which the EMM is always used. The resistivity is the important massage to indicate geothermal fields. Now, this article introduces successful ex- ample of CSAMT prospecting on geothermal fields of convection and conduction.

关 键 词：地热田系统 热传导 热对流 

分 类 号：P631.3[天文地球—地质矿产勘探]