汤峪热田地热流体地球化学特征及其补给源分析Analysis of Tangyu Geothermal Fluid Geochemical Characteristics and Source of Supply
张鹏;端木辉;徐勇;温亦品;
摘要(Abstract)：
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。
关键词(KeyWords)： 地热田;地热水;地球化学特征;H、O同位素;汤峪
基金项目(Foundation):
作者(Author): 张鹏;端木辉;徐勇;温亦品;
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