Hydrogeochemical characteristics and the genesis of the No. Lu 32 well in the Jiaodong Peninsula, China
The No. Lu 32 well is a seismic observation well situated on the easternmost tip of the Penglai–Weihai fault zone in the Jiaodong Peninsula. It is necessary to reveal the genetic mechanism of the water in this well for earthquake forecasting along the Penglai–Weihai fault zone. Water samples were co...
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Frontiers Media S.A.
2023-02-01
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| Series: | Frontiers in Earth Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/feart.2023.1131539/full |
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| author | Guilin Du Guilin Du Bin Zhai Bin Zhai Shujuan Su Lailun Sui Xiangchun Chang Hongwei Ren Maiyu Sun Lili Wang |
| author_facet | Guilin Du Guilin Du Bin Zhai Bin Zhai Shujuan Su Lailun Sui Xiangchun Chang Hongwei Ren Maiyu Sun Lili Wang |
| author_sort | Guilin Du |
| collection | DOAJ |
| description | The No. Lu 32 well is a seismic observation well situated on the easternmost tip of the Penglai–Weihai fault zone in the Jiaodong Peninsula. It is necessary to reveal the genetic mechanism of the water in this well for earthquake forecasting along the Penglai–Weihai fault zone. Water samples were collected from the No. Lu 32 well, neighboring wells, and seawater to measure the hydrochemical composition and main hydrogen and oxygen isotopic compositions. The water type of the No. Lu 32 well is Cl–Na, which may be due to the influence of seawater intrusion. Hydrogen and oxygen isotopes indicate that the No. Lu 32 well and adjacent wells are mainly influenced by meteoric water, that the high salinity in the water is mainly from the mixing of modern seawater, and that the proportion of seawater there is approximately 5%. Observation of water temperature data in the No. Lu 32 well over several years shows regular annual variations. This comprehensive study shows that the well is greatly affected by seawater backflow infiltration and shallow water. The results of this paper provide an important reference for exploring the hydrogeochemical characteristics and genesis of wells in other coastal zones. |
| first_indexed | 2024-04-10T07:47:51Z |
| format | Article |
| id | doaj.art-9e66739d5a424304b2ab8121673a55d2 |
| institution | Directory Open Access Journal |
| issn | 2296-6463 |
| language | English |
| last_indexed | 2024-04-10T07:47:51Z |
| publishDate | 2023-02-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Earth Science |
| spelling | doaj.art-9e66739d5a424304b2ab8121673a55d22023-02-23T10:28:58ZengFrontiers Media S.A.Frontiers in Earth Science2296-64632023-02-011110.3389/feart.2023.11315391131539Hydrogeochemical characteristics and the genesis of the No. Lu 32 well in the Jiaodong Peninsula, ChinaGuilin Du0Guilin Du1Bin Zhai2Bin Zhai3Shujuan Su4Lailun Sui5Xiangchun Chang6Hongwei Ren7Maiyu Sun8Lili Wang9College of Earth Science and Engineering, Shandong University of Science and Technology, Qingdao, ChinaWeihai Earthquake Monitoring Center, Weihai, ChinaLaboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao, ChinaThe Key Laboratory of Gas Hydrate, Ministry of Natural Resources, Qingdao Institute of Marine Geology, Qingdao, ChinaYantai Earthquake Monitoring Center Station, Shandong Earthquake Agency, Yantai, ChinaThe No. 6 Geological Brigade of Shandong Geological and Mineral Exploration and Development Bureau, Weihai, ChinaCollege of Earth Science and Engineering, Shandong University of Science and Technology, Qingdao, ChinaNational Institute of Natural Hazards, Ministry of Emergency Management of China, Beijing, ChinaWeihai Emergency Rescue Command and Protection Center, Weihai, ChinaCNPC EastChina Design Institute Co., Ltd., Qingdao, ChinaThe No. Lu 32 well is a seismic observation well situated on the easternmost tip of the Penglai–Weihai fault zone in the Jiaodong Peninsula. It is necessary to reveal the genetic mechanism of the water in this well for earthquake forecasting along the Penglai–Weihai fault zone. Water samples were collected from the No. Lu 32 well, neighboring wells, and seawater to measure the hydrochemical composition and main hydrogen and oxygen isotopic compositions. The water type of the No. Lu 32 well is Cl–Na, which may be due to the influence of seawater intrusion. Hydrogen and oxygen isotopes indicate that the No. Lu 32 well and adjacent wells are mainly influenced by meteoric water, that the high salinity in the water is mainly from the mixing of modern seawater, and that the proportion of seawater there is approximately 5%. Observation of water temperature data in the No. Lu 32 well over several years shows regular annual variations. This comprehensive study shows that the well is greatly affected by seawater backflow infiltration and shallow water. The results of this paper provide an important reference for exploring the hydrogeochemical characteristics and genesis of wells in other coastal zones.https://www.frontiersin.org/articles/10.3389/feart.2023.1131539/fullNo. Lu 32 wellhydrochemistrygenesisseawater mixingwater temperature |
| spellingShingle | Guilin Du Guilin Du Bin Zhai Bin Zhai Shujuan Su Lailun Sui Xiangchun Chang Hongwei Ren Maiyu Sun Lili Wang Hydrogeochemical characteristics and the genesis of the No. Lu 32 well in the Jiaodong Peninsula, China Frontiers in Earth Science No. Lu 32 well hydrochemistry genesis seawater mixing water temperature |
| title | Hydrogeochemical characteristics and the genesis of the No. Lu 32 well in the Jiaodong Peninsula, China |
| title_full | Hydrogeochemical characteristics and the genesis of the No. Lu 32 well in the Jiaodong Peninsula, China |
| title_fullStr | Hydrogeochemical characteristics and the genesis of the No. Lu 32 well in the Jiaodong Peninsula, China |
| title_full_unstemmed | Hydrogeochemical characteristics and the genesis of the No. Lu 32 well in the Jiaodong Peninsula, China |
| title_short | Hydrogeochemical characteristics and the genesis of the No. Lu 32 well in the Jiaodong Peninsula, China |
| title_sort | hydrogeochemical characteristics and the genesis of the no lu 32 well in the jiaodong peninsula china |
| topic | No. Lu 32 well hydrochemistry genesis seawater mixing water temperature |
| url | https://www.frontiersin.org/articles/10.3389/feart.2023.1131539/full |
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