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DOI | 10.1029/2020GL092337 |
Inflection points on groundwater age and geochemical profiles along wellbores light up hierarchically nested flow systems | |
Jun Zhang; Xu-Sheng Wang; Lihe Yin; Wenke Wang; Andrew Love; Zheng-Tian Lu; Wei Jiang; Guo-Min Yang; Yueqing Xie; Xiaoyong Wang; Fangqiang Sun; Xiaoping Tang; Guangcai Hou; Zhonghe Pang | |
2021-08-09 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2021 |
英文摘要 | Hierarchically nested groundwater flow systems have been widely investigated by numerical modeling and laboratory experiments but seldom recognized from in situ observations and testing. Groundwater age and geochemical profiles were obtained by the authors using a packer system along two wellbores drilled in the Ordos Plateau, China. Groundwater age profiles were constructed from 3H, 85Kr, 14C and 81Kr data, with the apparent age generally increasing with depth, while exhibiting several inflection points. These inflection points were compared with geochemical profiles and numerical modeling results to delineate groundwater flow systems. Inflection points with significant increases in the gradients of age and Cl- concentration versus depth may indicate interfaces among flow systems. A concurrent decrease-increase turning of groundwater age and Cl- concentration is influenced by a stagnation point. The groundwater age profiles are quite different from previous studies, indicating that the method can greatly reduce the uncertainty in model construction. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/335835 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Jun Zhang,Xu-Sheng Wang,Lihe Yin,et al. Inflection points on groundwater age and geochemical profiles along wellbores light up hierarchically nested flow systems[J]. Geophysical Research Letters,2021. |
APA | Jun Zhang.,Xu-Sheng Wang.,Lihe Yin.,Wenke Wang.,Andrew Love.,...&Zhonghe Pang.(2021).Inflection points on groundwater age and geochemical profiles along wellbores light up hierarchically nested flow systems.Geophysical Research Letters. |
MLA | Jun Zhang,et al."Inflection points on groundwater age and geochemical profiles along wellbores light up hierarchically nested flow systems".Geophysical Research Letters (2021). |
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