杨学明,雷清,聂冀强,李世斌,王身龙.太行拱断束地热资源调查评价-基于大地电磁测深结果的分析[J].西北地质,2020,53(4):235-245 YANG Xueming,LEI Qing,NIE Jiqiang,LI Shibin,WANG Shenlong.Investigation and Evaluation of Geothermal Resources of Taihang Arch Fault Cluster Based on the Magnetotelluric Exploration[J].Northwestern Geology,2020,53(4):235-245
太行拱断束地热资源调查评价-基于大地电磁测深结果的分析
Investigation and Evaluation of Geothermal Resources of Taihang Arch Fault Cluster Based on the Magnetotelluric Exploration
投稿时间:2020-01-26  修订日期:2020-05-30
DOI:10.19751/j.cnki.61-1149/p.2020.04.022
中文关键词:  太行拱断束;大地电磁;二维反演;地热远景区
英文关键词:Taihang arch fault cluster;magnetotelluric;2D inversion;geothermal resource prospect
基金项目:河北省地质勘查基金“太行拱断束地热资源调查”(454-0503-YBN-R5NW)
作者单位
杨学明 天津市地球物理勘探中心, 天津 300170 
雷清 天津市地球物理勘探中心, 天津 300170 
聂冀强 河北省地矿局第一地质大队, 河北 邯郸 056001 
李世斌 天津市地球物理勘探中心, 天津 300170 
王身龙 天津市地球物理勘探中心, 天津 300170 
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中文摘要:
      太行拱断束南向北凹凸相间的地质构造格局控制着地层、地温场以及大地对流分布,断裂对深部地热的垂向传导与地热资源形成起到重要得控制作用。结晶基底上不整合沉积层较厚,热储集层发育,盖层稳定,为地热资源构成了良好的赋存环境。为了评价太行拱断束深部地热资源远景,开展了区域大地电磁勘探工作。通过对大地电磁数据维性及构造走向、Bostick一维反演等进行计算分析和二维反演,获取了研究区5 km以浅的电性结构模型。结合以往成果,对研究区地层、断裂分布情况进行了推断解释,评价了研究区5 km以浅地热地球物理特征,预测了4个地热资源远景区,可作为下一步地热资源勘探部署重点区块,为研究区地热资源的开发规划利用提供了基础资料。
英文摘要:
      The geological structure of the concave-convex pattern of the Taihang Arch Fault Cluster from south to north controls the distribution of the stratum, geothermal field and ground convection. The fault plays an important controlling role in the vertical conduction of deep geothermal heat and the formation of geothermal resources. The thick unconsolidated sedimentary layer on the crystalline substrate, the developed thermal reservoir, and the stable cap layer constitute good environment for geothermal resources. The regional magnetotelluric exploration work was carried out to evaluate the prospect of deep geothermal resources in the Taihang Arch Fault Cluster. It obtained an electrical structural model shallower than 5km in the study area through the calculation and analysis of magnetotelluric data dimensionality, structural trend, Bostick 1D inversion and 2D inversion. Based on the previous achievements, the formation and fault distribution of the study area were interpreted and the geophysical characteristics of shallow geotherm within 5 km were evaluated. Four geothermal resource prospects were predicted, which can be the key blocks for the future exploration and deployment of geothermal resources and can also provide basic information for the planning and utilization of geothermal resources in the study area.
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