Hydrogeochemical characteristics of groundwater and pore-water and the paleoenvironmental evolution in the past 3.10 Ma in the Xiong’an New Area, North China
The groundwater level has been continuously decreasing due to climate change and long-time overexploitation in the Xiong’an New Area, North China, which caused the enhanced mixing of groundwater in different aquifers and significant changes in regional groundwater chemistry characteristics. In this...
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KeAi Communications Co., Ltd.
2021-09-01
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| Series: | China Geology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2096519221001609 |
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| author | Kai Zhao Jing-xian Qi Yi Chen Bai-heng Ma Li Yi Hua-ming Guo Xin-zhou Wang Lin-ying Wang Hai-tao Li |
| author_facet | Kai Zhao Jing-xian Qi Yi Chen Bai-heng Ma Li Yi Hua-ming Guo Xin-zhou Wang Lin-ying Wang Hai-tao Li |
| author_sort | Kai Zhao |
| collection | DOAJ |
| description | The groundwater level has been continuously decreasing due to climate change and long-time overexploitation in the Xiong’an New Area, North China, which caused the enhanced mixing of groundwater in different aquifers and significant changes in regional groundwater chemistry characteristics. In this study, groundwater and sediment pore-water in drilling cores obtained from a 600 m borehole were investigated to evaluate hydrogeochemical processes in shallow and deep aquifers and paleo-environmental evolution in the past ca. 3.10 Ma. Results showed that there was no obvious change overall in chemical composition along the direction of groundwater runoff, but different hydrochemical processes occurred in shallow and deep groundwater in the vertical direction. Shallow groundwater (< 150 m) in the Xiong’an New Area was characterized by high salinity (TDS > 1000 mg/L) and high concentrations of Mn and Fe, while deep groundwater had better water quality with lower salinity. The high TDS values mostly occurred in aquifers with depth < 70 m and >500 m below land surface. Water isotopes showed that aquifer pore-water mostly originated from meteoric water under the influence of evaporation, and aquitard pore-water belonged to Paleo meteoric water. In addition, the evolution of the paleoclimate since 3.10 Ma BP was reconstructed, and four climate periods were determined by the δ18O profiles of pore-water and sporopollen records from sediments at different depths. It can be inferred that the Quaternary Pleistocene (0.78–2.58 Ma BP) was dominated by the cold and dry climate of the glacial period, with three interglacial intervals of warm and humid climate. What’s more, this study demonstrates the possibilities of the applications of pore-water on the hydrogeochemical study and further supports the finding that pore-water could retain the feature of paleo-sedimentary water.© 2021 China Geology Editorial Office. |
| first_indexed | 2024-04-10T16:57:52Z |
| format | Article |
| id | doaj.art-cb9fe6b3f0d849168fc3d12f18d720dd |
| institution | Directory Open Access Journal |
| issn | 2096-5192 |
| language | English |
| last_indexed | 2024-04-10T16:57:52Z |
| publishDate | 2021-09-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | China Geology |
| spelling | doaj.art-cb9fe6b3f0d849168fc3d12f18d720dd2023-02-07T04:22:40ZengKeAi Communications Co., Ltd.China Geology2096-51922021-09-0143476486Hydrogeochemical characteristics of groundwater and pore-water and the paleoenvironmental evolution in the past 3.10 Ma in the Xiong’an New Area, North ChinaKai Zhao0Jing-xian Qi1Yi Chen2Bai-heng Ma3Li Yi4Hua-ming Guo5Xin-zhou Wang6Lin-ying Wang7Hai-tao Li8Hebei Key Laboratory of Geological Resources and Environment Monitoring and Protection, Shijiazhuang 050021, China; China Institute of Geo-environmental monitoring, China Geological Survey, Beijing 100081, China; Corresponding author: E-mail address: sjzmbh@126.com (Bai-heng Ma); lihaitao@mail.cgs.gov.cn (Hai-tao Li).Technical Centre for Soil, Agriculture and Rural Ecology and Environment, Ministry of Ecology and Environment, Beijing 100012, ChinaLianhe Equator Environmental Impact Assessment Co., Ltd., Tianjin 300042, China; China University of Geoscience (Beijing), Beijing 100083, ChinaHebei Key Laboratory of Geological Resources and Environment Monitoring and Protection, Shijiazhuang 050021, China; Hebei Geological Environment Monitoring Institute, Shijiazhuang 050021, China; First author: E-mail address: zhaokai1987924@163.com (Kai Zhao).Hebei Key Laboratory of Geological Resources and Environment Monitoring and Protection, Shijiazhuang 050021, China; Hebei Geological Environment Monitoring Institute, Shijiazhuang 050021, ChinaChina University of Geoscience (Beijing), Beijing 100083, ChinaHebei Key Laboratory of Geological Resources and Environment Monitoring and Protection, Shijiazhuang 050021, China; Hebei Geological Environment Monitoring Institute, Shijiazhuang 050021, ChinaHebei Key Laboratory of Geological Resources and Environment Monitoring and Protection, Shijiazhuang 050021, China; Hebei Geological Environment Monitoring Institute, Shijiazhuang 050021, ChinaChina Institute of Geo-environmental monitoring, China Geological Survey, Beijing 100081, China; First author: E-mail address: zhaokai1987924@163.com (Kai Zhao).The groundwater level has been continuously decreasing due to climate change and long-time overexploitation in the Xiong’an New Area, North China, which caused the enhanced mixing of groundwater in different aquifers and significant changes in regional groundwater chemistry characteristics. In this study, groundwater and sediment pore-water in drilling cores obtained from a 600 m borehole were investigated to evaluate hydrogeochemical processes in shallow and deep aquifers and paleo-environmental evolution in the past ca. 3.10 Ma. Results showed that there was no obvious change overall in chemical composition along the direction of groundwater runoff, but different hydrochemical processes occurred in shallow and deep groundwater in the vertical direction. Shallow groundwater (< 150 m) in the Xiong’an New Area was characterized by high salinity (TDS > 1000 mg/L) and high concentrations of Mn and Fe, while deep groundwater had better water quality with lower salinity. The high TDS values mostly occurred in aquifers with depth < 70 m and >500 m below land surface. Water isotopes showed that aquifer pore-water mostly originated from meteoric water under the influence of evaporation, and aquitard pore-water belonged to Paleo meteoric water. In addition, the evolution of the paleoclimate since 3.10 Ma BP was reconstructed, and four climate periods were determined by the δ18O profiles of pore-water and sporopollen records from sediments at different depths. It can be inferred that the Quaternary Pleistocene (0.78–2.58 Ma BP) was dominated by the cold and dry climate of the glacial period, with three interglacial intervals of warm and humid climate. What’s more, this study demonstrates the possibilities of the applications of pore-water on the hydrogeochemical study and further supports the finding that pore-water could retain the feature of paleo-sedimentary water.© 2021 China Geology Editorial Office.http://www.sciencedirect.com/science/article/pii/S2096519221001609GroundwaterPore-waterHydrogeochemistryStable oxygen isotopePaleoclimate changePaleoenvironmental reconstruction |
| spellingShingle | Kai Zhao Jing-xian Qi Yi Chen Bai-heng Ma Li Yi Hua-ming Guo Xin-zhou Wang Lin-ying Wang Hai-tao Li Hydrogeochemical characteristics of groundwater and pore-water and the paleoenvironmental evolution in the past 3.10 Ma in the Xiong’an New Area, North China China Geology Groundwater Pore-water Hydrogeochemistry Stable oxygen isotope Paleoclimate change Paleoenvironmental reconstruction |
| title | Hydrogeochemical characteristics of groundwater and pore-water and the paleoenvironmental evolution in the past 3.10 Ma in the Xiong’an New Area, North China |
| title_full | Hydrogeochemical characteristics of groundwater and pore-water and the paleoenvironmental evolution in the past 3.10 Ma in the Xiong’an New Area, North China |
| title_fullStr | Hydrogeochemical characteristics of groundwater and pore-water and the paleoenvironmental evolution in the past 3.10 Ma in the Xiong’an New Area, North China |
| title_full_unstemmed | Hydrogeochemical characteristics of groundwater and pore-water and the paleoenvironmental evolution in the past 3.10 Ma in the Xiong’an New Area, North China |
| title_short | Hydrogeochemical characteristics of groundwater and pore-water and the paleoenvironmental evolution in the past 3.10 Ma in the Xiong’an New Area, North China |
| title_sort | hydrogeochemical characteristics of groundwater and pore water and the paleoenvironmental evolution in the past 3 10 ma in the xiong an new area north china |
| topic | Groundwater Pore-water Hydrogeochemistry Stable oxygen isotope Paleoclimate change Paleoenvironmental reconstruction |
| url | http://www.sciencedirect.com/science/article/pii/S2096519221001609 |
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