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花岗岩地区深部地热构造电磁法探测研究——以福建龙海地区为例
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  • 英文篇名:Magnetotelluric method study in prospecting the deep geothermal structure in granite area:a case study of the Longhai area, Fujian
  • 作者:周超 ; 王光杰 ; 李红领 ; 林方丽 ; 何国丽
  • 英文作者:ZHOU Chao;WANG Guang-jie;LI Hong-ling;LIN Fang-li;HE Guo-li;University of Chinese Academy of Sciences;Key Laboratory of Shale Gas and Geoengineering,Institute of Geology and Geophysics,Chinese Academy of Sciences;Hubei Earthquake Agency;Institute of Earth Science,Chinese Academy of Sciences;
  • 关键词:地热 ; 深部构造 ; 音频大地电磁法 ; 花岗岩地区 ; 电阻率反演
  • 英文关键词:Geothermal;;Deep structure;;Audio Magnetotelluric method(AMT);;Granite area;;Resistivity inversion
  • 中文刊名:DQWJ
  • 英文刊名:Progress in Geophysics
  • 机构:中国科学院大学;中国科学院地质与地球物理研究所页岩气与地质工程重点实验室;湖北省地震局;中国科学院地球科学研究院;
  • 出版日期:2019-03-05 15:39
  • 出版单位:地球物理学进展
  • 年:2019
  • 期:v.34;No.155
  • 基金:国家重点研发计划课题(2016YFC0600507);; 国家自然科学基金项目(41274143)联合资助
  • 语种:中文;
  • 页:DQWJ201903037
  • 页数:6
  • CN:03
  • ISSN:11-2982/P
  • 分类号:307-312
摘要
为探查福建龙海花岗岩区深部地热构造,试验音频大地电磁法(AMT)在此类地区的应用效果,在该区域布设了数条AMT测线.经过一系列的数据处理及反演,得到研究区的各条测线的电阻率深度剖面图及电阻率分布平面切片图.该测区AMT研究成果反映了地下2 km深度范围内的地质构造分布基本情况,指示了可能的深部地热构造位置,为深部构造探测提供了良好的地球物理基础资料.结果表明,音频大地电磁法在探测花岗岩地区深部地热构造方面是有效的.
        To prospect the deep geothermal structure of granite area in Longhai district, Fujian province and to test the application result of Audio Magnetotelluric method(AMT)in such granite areas, AMT measuring lines was carried out in this region. After data processing and inversion, resistivity-depth profile of every prospecting line and resistivity distribution slices of the study area are obtained. It provides good basic geophysical data for deep exploration, reveals the structural position. The results show that audio magnetotelluric method is effective in prospecting the deep geothermal structure in granite area.
引文
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