摘要
汤峪地热田位于陕西省关中平原南部的眉县汤峪镇,属于典型的断裂裂隙型地热田。根据陕西省眉县汤峪镇地热田地热地质条件、地热水的化学成分及H、O同位素分析数据,得出了热水中各主要离子(Mg^+、Ca^+、HCO_3^-、F^-等)浓度及其相互之间与热水温度的变化规律和机理。热水中H、O同位素分析数据表明,地热水来源于大气降水,通过深循环在地温作用下加热形成热水,补给水源温度为4℃,与现代降水平均气温相差约12℃,补给区高程为1 371~2 475m,平均补给高程为2 118m,此范围大致位于汤峪热田南部的秦岭山脉太白山区。
Tangyu geothermal field located in Tangyu Town,Mei County in the southern Guanzhong Plain in Shaanxi Province,belongs to the typical fracture type geothermal field.According to the geological characteristics of this geothermal field,the chemical composition of geothermal water and H and O isotope were analyzed to obtain the major ions（Mg^＋,Ca^＋,HCO3^-,F^-,etc.）contented in the hot water,and the changes in variation and mechanism with the hot water′s temperature.The H and O isotope in the hot water analysis show that geothermal water from the atmospheric precipitation is heated by the formation of deep cycle and the temperature of the supply water is 4℃,with modern precipitation average temperature difference of about 12℃.The recharge area elevation is about 1 371-2 475 m,with the average elevation about 2 118 m.Recharge area is located in the range of Tangyu geothermal field,southern Taibai of Qinling Mountains.
出处
《地质科技情报》
CAS
CSCD
北大核心
2016年第2期192-196,共5页
Geological Science and Technology Information
关键词
地热田
地热水
地球化学特征
H、O同位素
汤峪
geothermal field
geothermal water
geochemical characteristics
H and O isotope
Tangyu
