首页|赣南青塘岩溶盆地系统地下水氢氧同位素特征分析

赣南青塘岩溶盆地系统地下水氢氧同位素特征分析

扫码查看
基于赣江流域水文地质调查(1∶5万青塘幅)项目,通过地面调查、地下水样采集、实验测试、数据综合分析等手段,研究青塘岩溶盆地系统地下水氢氧同位素特征.研究表明,盆地内不同地下水取样点δ18O、δD及d值差异明显,δ 18O值的变化范围为-6.55‰~-4.45‰,均值为-5.85‰;δ D值的变化范围为-38.25‰~-27.90‰,均值为-34.47‰;d值的变化范围为7.70~14.15,均值为12.34.对青塘岩溶盆地内地下水氢氧同位素特征综合分析研究,揭示了该地区地下水的补给主要来源于大气降水,第四系地下水与岩溶地下水具有密切的水力联系,地下水与地表水存在一定的关联,为该地区地下水污染防治提供依据.
Analysis of Groundwater Hydrogen and Oxygen Isotope Characteristics of Karst Basin System in Qingtang,Southern Jiangxi
Based on the Ganjiang River basin hydrogeological survey(1∶50,000 Qingtang area)project,the characteristics of hydrogen and oxygen isotopes of groundwater in Qingtang Karst basin system were studied by means of ground survey,groundwater sample collection,experimental test and comprehensive data analysis.The results show that the δ18O,δD and d values of different groundwater sampling points in the basin are significantly different.The δ18O and δD value ranged from-6.55‰ to-4.45‰,-38.25‰ to-27.90‰,with an average value of-5.85‰ and-34.47‰,respectively.The The d value ranges from 7.70 to 14.15,with an average value of 12.34.The comprehensive analysis of hydrogen and oxygen isotope characteristics of groundwater in Qingtang Karst Basin reveals that the recharge of groundwater in this area mainly comes from atmospheric precipitation.There is a close hydraulic relationship between quaternary groundwater and karst groundwater,and a certain correlation between groundwater and surface water,which provides a basis for groundwater pollution prevention in this area.

groundwaterhydrogen and oxygen isotopesdeuterium excess parametersmeteoric water lineQingtang karst basinSouthern Jiangxi

何文城、刘前进、黄旭娟、汪明有

展开 >

江西有色地质矿产勘查开发院,南昌 330030

地下水 氢氧同位素 氘过量参数 大气降水线 青塘岩溶盆地 赣南

2024

四川地质学报
四川省地质学会

四川地质学报

影响因子:0.314
ISSN:1006-0995
年,卷(期):2024.44(3)