| Chlorofluorocarbons and ~3H/~3He in groundwater——Applications in tracing and dating young groundwater |
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| 引用本文： | 秦大军,王浩. Chlorofluorocarbons and ~3H/~3He in groundwater——Applications in tracing and dating young groundwater[J]. 中国科学E辑(英文版), 2001, 0(Z1) |
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| 作者姓名： | 秦大军 王浩 |
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| 作者单位： | QIN Dajun & WANG HaoInstitute of Geology and Geophysics，Chinese Academy of Sciences，Beijing 100029，China;Institute of water Resources and Hydropower Research，Beijing 100044，China |
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| 基金项目： | This paper is financially supported by the State Key Foundation Planning Project (No. G1999043602)，IAEA TC Project (No. CPR/8/011 and CPR/8/012). |
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| 摘 要： | Based on the CFC concentration, the fraction of young groundwater in a mixture with old groundwater can be defined if the age of the young component is known. The authors argued that the ratio of [3HeJ/[3Ht] in a young water is independent of its mixing with old waters. Hence, the 3H-3He can be used to determine age of the young groundwater, though mixing with old ground-water may occur. CFC concentrations are susceptible to change by mixing of young and old water. The combination of CFCs and tritium/helium can provide confidential apparent age of the young groundwater and fraction of the young water in the mixture with old groundwater.
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Chlorofluorocarbons and ~3H/~ 3He in groundwater-Applications in tracing and dating young groundwater |
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| QIN Dajun , WANG HaoInstitute of Geology and Geophysics,Chinese Academy of Sciences,Beijing ,China. Chlorofluorocarbons and ~3H/~ 3He in groundwater-Applications in tracing and dating young groundwater[J]. Science in China(Technological Sciences), 2001, 0(Z1) |
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| Authors: | QIN Dajun & WANG HaoInstitute of Geology Geophysics Chinese Academy of Sciences Beijing China |
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| Affiliation: | QIN Dajun & WANG HaoInstitute of Geology and Geophysics,Chinese Academy of Sciences,Beijing 100029,China,Institute of water Resources and Hydropower Research,Beijing 100044,China |
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| Abstract: | Based on the CFC concentration, the fraction of young groundwater in a mixture with old groundwater can be defined if the age of the young component is known. The authors argued that the ratio of [3HeJ/[3Ht] in a young water is independent of its mixing with old waters. Hence, the 3H-3He can be used to determine age of the young groundwater, though mixing with old ground-water may occur. CFC concentrations are susceptible to change by mixing of young and old water. The combination of CFCs and tritium/helium can provide confidential apparent age of the young groundwater and fraction of the young water in the mixture with old groundwater. |
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| Keywords: | tritium/helium and CFC tracing and dating young groundwater. |
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