桃源县热市地热田地热流体特征及成因分析  

Characteristics and Cause Analysis of Geothermal Fluids in Geothermal Field in Taoyuan County

作　　者：刘声凯 赵凯[1] 彭嵚 

机构地区：[1]湖南省地质矿产勘查开发局四一六队,湖南株洲412003

出　　处：《地下水》2016年第6期13-17,共5页Ground water

基　　金：湖南省探矿权采矿权价款地质勘查项目"湖南省桃源县热市地下热水资源预可行性勘查(201203033)";湖南省地质矿产勘查开发局2014年度科技专项"湖南省桃源县热市地下热水资源成因机理研究"联合资助

摘　　要：桃源县热市地热田在地热构造上位于花垣—张家界—慈利区域性深大控热断裂的北东端南东延伸带上,属断裂控制的带状热储。热异常沿热市河谷呈北西向带状展布。地热流体的补给源主要为大气降水,深部热能沿热市断层带上升到一定部位后遇到丰富的岩溶水,岩溶水吸收热能使地下水温度增高形成热水,其成因模式为大气降水补给的断裂带深循环型地热系统。结果表明:研究区温泉水温及流量动态变化较小,地下热水水量丰富,温度适宜,具有良好的开发前景。Reshi geothermal field in Taoyuan County for the geothermal structure is located in the extended southeast zone of the deep and large heat- controlled fracture and northeast end of Huayuan- Zhangjiajie- Cili area,which is belong to a band- shaped thermal storage controlled by fractures. The thermal anomalies are distributed along the northwest of the thermal valley. The main source of geothermal fluid is the precipitation,and the deep heat energy rises to a certain position along the thermal fault zone and hit the rich karst water. The karst water absorbs heat to increase the groundwater temperature to being the hot water. The causes of formation is the deep circulation geothermal system of the precipitation. The result shows the temperature of the hot water and the dynamic changes of the flowing is small in the studied area. The geothermal water is rich and the temperature is suitable and it has the better development prospect.

关 键 词：热市 地热流体 特征 成因模式 

分 类 号：P641.139[天文地球—地质矿产勘探]