Hydrogeochemical Characteristics and Genesis of the Chazi Geothermal Field Area in Tibet
The Chazi geothermal field area is located in the large region of Shigatse in southern Tibet. The geothermal resources in this area are abundant, but their exploitation and utilization are low. By studying the water chemistry and isotope characteristics of geochemical fluids in the study area, infor...
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| Format: | Article |
| Language: | English |
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Wiley
2022-01-01
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| Series: | Geofluids |
| Online Access: | http://dx.doi.org/10.1155/2022/5815996 |
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| author | Mingzhong Song Xujuan Lang Zhennan Zhong Fengxin Kang Dawa Nan Haoting Li Haowen Yu Shaoyun Liu Sihang Han Zhao Liu |
| author_facet | Mingzhong Song Xujuan Lang Zhennan Zhong Fengxin Kang Dawa Nan Haoting Li Haowen Yu Shaoyun Liu Sihang Han Zhao Liu |
| author_sort | Mingzhong Song |
| collection | DOAJ |
| description | The Chazi geothermal field area is located in the large region of Shigatse in southern Tibet. The geothermal resources in this area are abundant, but their exploitation and utilization are low. By studying the water chemistry and isotope characteristics of geochemical fluids in the study area, information on water chemistry, heat storage temperature, recharge source, recharge elevation, and circulation depth was obtained. These results provide a scientific theoretical basis for improving the genetic mechanism of high-temperature geothermal systems in the study area. The type of geothermal fluid hydrochemicals in this area is mainly HCO3–Na. The isotopic geochemical method was used to determine that the recharge source of geothermal fluids was atmospheric precipitation, and the recharge elevation was 5200–6000 m. The geochemical thermometer, Na–K–Mg equilibrium diagram, and silica-enthalpy mixed model indicated the shallow and deep thermal storage temperatures of approximately 150 and 200°C, respectively, and the average circulation depth of 1163.38 m in the study area. Combined with the fracture structure and magmatic activity characteristics of the southwest Qinghai-Tibet Plateau, the source, storage, cover, and general situation of the area were preliminarily summarised, and the conceptual model of geothermal origin was established. The results can provide a scientific theoretical basis for the mechanism of high-temperature geothermal systems and subsequent drilling and resource development. |
| format | Article |
| id | doaj-art-5c4913905221438fb46d721423c9fb52 |
| institution | Kabale University |
| issn | 1468-8123 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geofluids |
| spelling | doaj-art-5c4913905221438fb46d721423c9fb522025-02-03T06:00:27ZengWileyGeofluids1468-81232022-01-01202210.1155/2022/5815996Hydrogeochemical Characteristics and Genesis of the Chazi Geothermal Field Area in TibetMingzhong Song0Xujuan Lang1Zhennan Zhong2Fengxin Kang3Dawa Nan4Haoting Li5Haowen Yu6Shaoyun Liu7Sihang Han8Zhao Liu9No. 6 Institute of Geology and Mineral Resources Exploration of Shandong ProvinceSchool of Water Resources & EnvironmentNo. 6 Institute of Geology and Mineral Resources Exploration of Shandong ProvinceShandong Provincial Bureau of Geology & Mineral ResourcesThe Geothermal Geological Team of TibetThe Second Hydrogeological Geological Exploration Institute of Anhui Geological Survey BureauSchool of Water Resources & EnvironmentHenan Yellow River Hydrology Survey and Design InstituteSchool of Water Resources & EnvironmentSchool of Water Resources & EnvironmentThe Chazi geothermal field area is located in the large region of Shigatse in southern Tibet. The geothermal resources in this area are abundant, but their exploitation and utilization are low. By studying the water chemistry and isotope characteristics of geochemical fluids in the study area, information on water chemistry, heat storage temperature, recharge source, recharge elevation, and circulation depth was obtained. These results provide a scientific theoretical basis for improving the genetic mechanism of high-temperature geothermal systems in the study area. The type of geothermal fluid hydrochemicals in this area is mainly HCO3–Na. The isotopic geochemical method was used to determine that the recharge source of geothermal fluids was atmospheric precipitation, and the recharge elevation was 5200–6000 m. The geochemical thermometer, Na–K–Mg equilibrium diagram, and silica-enthalpy mixed model indicated the shallow and deep thermal storage temperatures of approximately 150 and 200°C, respectively, and the average circulation depth of 1163.38 m in the study area. Combined with the fracture structure and magmatic activity characteristics of the southwest Qinghai-Tibet Plateau, the source, storage, cover, and general situation of the area were preliminarily summarised, and the conceptual model of geothermal origin was established. The results can provide a scientific theoretical basis for the mechanism of high-temperature geothermal systems and subsequent drilling and resource development.http://dx.doi.org/10.1155/2022/5815996 |
| spellingShingle | Mingzhong Song Xujuan Lang Zhennan Zhong Fengxin Kang Dawa Nan Haoting Li Haowen Yu Shaoyun Liu Sihang Han Zhao Liu Hydrogeochemical Characteristics and Genesis of the Chazi Geothermal Field Area in Tibet Geofluids |
| title | Hydrogeochemical Characteristics and Genesis of the Chazi Geothermal Field Area in Tibet |
| title_full | Hydrogeochemical Characteristics and Genesis of the Chazi Geothermal Field Area in Tibet |
| title_fullStr | Hydrogeochemical Characteristics and Genesis of the Chazi Geothermal Field Area in Tibet |
| title_full_unstemmed | Hydrogeochemical Characteristics and Genesis of the Chazi Geothermal Field Area in Tibet |
| title_short | Hydrogeochemical Characteristics and Genesis of the Chazi Geothermal Field Area in Tibet |
| title_sort | hydrogeochemical characteristics and genesis of the chazi geothermal field area in tibet |
| url | http://dx.doi.org/10.1155/2022/5815996 |
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