陇东南地区温泉气体地球化学特征
DOI:
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

P593

基金项目:

同位素地球化学技术在地质灾害预测及防治中的应用研究


Gas Geochemical characteristics of Hot Springs in the Southeast Gansu Pronvice
Author:
Affiliation:

Fund Project:

Research on the Application of Isotopic Geochemistry Technology in the Forecasting and Prevention of Geological Disasters

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    为了探究甘肃东南部温泉的成因,通过气体地球化学的方法研究对比了该区温泉、冷泉和地表水中溶解气的组分及其同位素特征。结果表明:陇东南地区出露的温(冷)泉和地表水具有相似的气体组分特征,均以氮气为主(介于70.47~78.33%);温泉水的δD-δ18O数据点沿着兰州大气降水线分布,没有明显漂移;δ13CCO2特征和二氧化碳含量表明CO2属于有机生物成因。可见陇东南地区温泉水与深部围岩的同位素交换作用不强,温泉水的来源属于大气降水补给。其形成可能是地表水在深循环过程中受热后,由于频发的地震产生有利于地下水和温泉气上升、运移的通道,使的泉水沿裂隙溢出而来。

    Abstract:

    In order to explore the causes of hot springs in southeast of Gansu province, we studied the composition and isotopic characteristics of gases which dissolved in hot springs, cold springs and surface water. The results show that the hot springs have the same gas composition as cold springs and surface water, all of which are composed of dominant N2 (70.47 to 78.33%); Besides, the δD-δ18O line of hot spring water distribute along the Lanzhou atmospheric precipitation line, and no obvious drift. The δ13C value and content of CO2 indicate that CO2 mainly from biogenic hydrocarbon gas. It is concluded that the hot spring water origin from atmospheric precipitation, after heated by geothermal energy during the deep circulation, then rising to the surface by fracture which caused by the tectonic activity.

    参考文献
    相似文献
    引证文献
引用本文

杜丽,高恒亮,曹春辉,等. 陇东南地区温泉气体地球化学特征[J]. 科学技术与工程, 2019, 19(22): 63-69.
杜丽,高恒亮,曹春辉,et al. Gas Geochemical characteristics of Hot Springs in the Southeast Gansu Pronvice[J]. Science Technology and Engineering,2019,19(22):63-69.

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2018-12-28
  • 最后修改日期:2019-03-03
  • 录用日期:2019-04-09
  • 在线发布日期: 2019-08-28
  • 出版日期:
×
律回春渐,新元肇启|《科学技术与工程》编辑部恭祝新岁!
亟待确认版面费归属稿件,敬请作者关注