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现代地质 ›› 2018, Vol. 32 ›› Issue (03): 554-564.DOI: 10.19657/j.geoscience.1000-8527.2018.03.13

• 水文地质与环境地质学 • 上一篇    下一篇

湖南新田富锶地下水水化学特征与成因分析

苏春田1,2(), 聂发运3, 邹胜章2(), 赵光帅2, 罗飞2, 黄奇波2, 巴俊杰2, 李小盼2, 梁嘉鹏2, 杨杨2   

  1. 1.中国地质大学(武汉) 环境学院,湖北 武汉 430074
    2.中国地质科学院岩溶地质研究所 国土资源部/广西壮族自治区岩溶动力学重点实验室,广西 桂林 541004
    3.中国地质大学(北京) 水资源与环境学院,北京 100083
  • 收稿日期:2017-08-07 修回日期:2017-12-23 出版日期:2018-06-10 发布日期:2023-09-22
  • 通讯作者: 邹胜章
  • 作者简介:邹胜章,男,研究员,博士,1969年出生,水文地质学专业,主要从事水资源与环境工程方面的研究工作。Email:zshzh@karst.ac.cn
    苏春田,男,高级工程师,博士研究生,1981年出生,水文地质学专业,主要从事岩溶水文地质环境地质方面的研究。Email:suchuntian@karst.ac.cn
  • 基金资助:
    中国地质调查项目(DD20160303);中国地质调查项目(DD20160301);中国地质调查项目(DD20160285)

Hydrochemical Characteristics and Formation Mechanism of Strontium-rich Groundwater in Xintian County,Hunan Province

SU Chuntian1,2(), NIE Fayun3, ZOU Shengzhang2(), ZHAO Guangshuai2, LUO Fei2, HUANG Qibo2, BA Junjie2, LI Xiaopan2, LIANG Jiapeng2, YANG Yang2   

  1. 1. School of Environmental Studies,China University of Geosciences,Wuhan, Hubei 430074,China
    2. Key Laboratory of Karst Dynamics,Ministry of Land and Resources/Guangxi Zhuang Autonomous Region,Institute of Karst Geology,Chinese Academy of Geological Sciences, Guilin, Guangxi 541004,China
    3. School of Water Resources and Environment,China University of Geosciences,Beijing 100083,China
  • Received:2017-08-07 Revised:2017-12-23 Online:2018-06-10 Published:2023-09-22
  • Contact: ZOU Shengzhang

摘要:

研究湖南新田富锶地下水水化学特征及成因,为富锶地下水的可持续利用与开发提供理论依据。对研究区21个下降泉、30个机井富锶地下水样品的水化学类型、化学成分含量特征、成分间相关性以及离子比值的研究。结果表明:下降泉水化学类型全部为HCO3-Ca型,机井水化学类型以HCO3-Ca、HCO3-Ca·Mg型为主。相关分析表明,下降泉和机井中SO42-与Ca2+、Mg2+均表现显著相关或极显著相关,HCO3-与Ca2+、SO42-与NO3-在下降泉与机井中的相关性具有差异,下降泉、机井Sr与Ca2+、Mg2+、HCO3-均表现为极显著相关。Gibbs图表明下降泉和机井的水化学组成主要受水-岩相互作用的控制,下降泉、机井c(Ca2+)/c(Mg2+)、c(HCO3-)/c(SO42-+Cl-)、c(Na+)/c(Cl-)、c(Cl-)/c(Ca2+)系数比值具有差异。结果表明富Sr地下水的形成受碳酸盐岩成分影响显著,赋存条件的差异导致富锶地下水在下降泉、机井中的水化学特征、相关性以及离子系数比值的差异。

关键词: 水化学特征, 离子比例系数法, 富锶地下水, 新田, Gibbs图

Abstract:

To provide a theoretical basis for the sustainable utilization and development of strontium-rich groundwater, we described the chemical characteristics and discussed the possible origin of the strontium-rich groundwater in Xintian, Hunan.The hydrochemical types, chemical compositions, and correlations between components and ionic ratio of strontium-rich groundwater samples from 21 descending springs and 30 wells are presented.The results show that the chemical types of descending springs are all HCO3-Ca type, whilst those of wells are mainly HCO3-Ca and HCO3-Ca·Mg types.The correlation analysis shows that the SO42- and Ca2+ and Mg2+ in the descending springs and the wells are colsely correlated,and HCO3- vs.Ca2+, SO42- vs.NO3- correlations are different in the descending springs and the pumped wells.Strontium is strongly correlated with Ca2+,Mg2+ and HCO3- in descending springs and wells.Gibbs control chart shows that decrease of water spring and well chemical composition is mainly affected by water rock interaction, and the Ca2+/Mg2+,HCO3-/(SO42-+Cl-),Na+/Cl-,Cl-/Ca2+ ratios are different in descending springs and pumped wells. All the results show that the formation of Sr-rich groundwater is significantly affected by the carbonate composition. The difference of the reservoir conditions may have led to the varying hydrochemical characteristics, correlation and the ratio of ionic coefficient of strontium-rich groundwater in descending springs and pumped wells.

Key words: hydrochemical characteristic, ion scale coefficient method, strontium rich groundwater, Xintian county,Hunan, Gibbs diagram

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