摘要
草盘地地热田系指以温泉为中心的一定范围,受控于北东向断裂,沿东河河床及侵蚀阶地展布。研究表明,区内热源主要为地温增温及侵入岩放射性衰变释放的热能。通过区域地质构造、区域水文地质条件、地热流体化学特征对地热田成因进行初步分析,利用H-O同位素分析估算地热流体的补给高程,利用SiO2温标推算地热田的热储温度,并估算热储埋深(循环径流深度)。
Caopandi geothermal field refers to a certain area centered on hot springs,which is controlled by NE-trending faults and spreads along the Donghe River bed and eroded terraces.The results show that the main heat sources in the area are the earth temperature warming and the heat energy released by radioactive decay of intrusive rocks.In this paper,the origin of geothermal field is preliminarily analyzed by regional geological structure,regional hydrogeological conditions and geothermal fluid chemical characteristics.The recharge elevation of geothermal fluids is estimated by H-O isotope.The thermal storage temperature of geothermal field is calculated by Silica temperature scale,and the thermal storage depth(circulating runoff depth)is estimated.
作者
戴竹
石威
陈金国
余方
Dai Zhu;Shi Wei;Chen Jinguo;Yu Fang(Third Geological Brigade of Hubei Geological Bureau,Huanggang,Hubei 438000)
出处
《资源环境与工程》
2019年第S01期87-91,共5页
Resources Environment & Engineering
基金
湖北省英山县草盘地地热资源预可行性勘查项目
关键词
草盘地地热田
成因
H-O同位素
热储
化学特征
Caopandi geothermal field
origin
H-O isotope
thermal storage
chemical haracteristics
