Geochemical characteristics and evolution process for hot spring gas of the north-south graben system in Qinghai−Xizang Plateau
While the hydrogeochemical characteristics of a single geothermal field in Qinghai−Xizang Plateau are well understood, the study of hot spring gases in various graben systems and their spatial characteristics and evolutionary processes, remains insufficiently explored. The study reported 16 hot spri...
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Editorial Office of Hydrogeology & Engineering Geology
2025-03-01
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| Series: | Shuiwen dizhi gongcheng dizhi |
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| Online Access: | https://www.swdzgcdz.com/en/article/doi/10.16030/j.cnki.issn.1000-3665.202401037 |
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| author | Sanyu QUAN Yingchun WANG Xin TANG Jinlin ZHOU Lu LUO Rongcai SONG |
| author_facet | Sanyu QUAN Yingchun WANG Xin TANG Jinlin ZHOU Lu LUO Rongcai SONG |
| author_sort | Sanyu QUAN |
| collection | DOAJ |
| description | While the hydrogeochemical characteristics of a single geothermal field in Qinghai−Xizang Plateau are well understood, the study of hot spring gases in various graben systems and their spatial characteristics and evolutionary processes, remains insufficiently explored. The study reported 16 hot spring gases from three grabens (Cuona−Woka garben, Yadong−Gulu garben and Shenzha−Dingjie garben) in Qinghai−Xizang Plateau. The composition and isotopic characteristics as well as the sources of hot spring gas were analyzed. Additionally, the relationship between the content of hot spring gas and the reservior temperature was conducted in the three garbens. Three types of gases were distinguished in Qinghai−Xizang Plateau by using the “mantle suture line” as the boundary. The results show that hot spring gases in the north and south sides of the boundary have undergone different evolutionary processes, with some samples in the south showing evidence of degassing and fractionation. The sources of helium and carbon isotopes in the hot spring gases are mainly derived from the crust, and the migration of helium is dependent on the flow of carbon dioxide. There are significant differences of reservior temperature in the three garbens, with a higher temperature (225 °C) in the Yadong−Gulu graben. This study provides insights in understanding the relationship between structures, hot spring gases, and geothermal fields in Qinghai−Xizang Plateau. The exploration of gas geochemical characteristics and their evolutionary processes are significant for the understanding of the underground geological processes and the exploitation and utilization of geothermal resources. |
| format | Article |
| id | doaj-art-87047b5709944eaa9e485eaa3ec2b7ac |
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| issn | 1000-3665 |
| language | zho |
| publishDate | 2025-03-01 |
| publisher | Editorial Office of Hydrogeology & Engineering Geology |
| record_format | Article |
| series | Shuiwen dizhi gongcheng dizhi |
| spelling | doaj-art-87047b5709944eaa9e485eaa3ec2b7ac2025-08-20T02:11:40ZzhoEditorial Office of Hydrogeology & Engineering GeologyShuiwen dizhi gongcheng dizhi1000-36652025-03-0152219020210.16030/j.cnki.issn.1000-3665.202401037202401037Geochemical characteristics and evolution process for hot spring gas of the north-south graben system in Qinghai−Xizang PlateauSanyu QUAN0Yingchun WANG1Xin TANG2Jinlin ZHOU3Lu LUO4Rongcai SONG5College of Energy （College of Modern Shale Gas Industry）, Chengdu University of Technology, Chengdu, Sichuan 610059, ChinaCollege of Energy （College of Modern Shale Gas Industry）, Chengdu University of Technology, Chengdu, Sichuan 610059, ChinaCollege of Energy （College of Modern Shale Gas Industry）, Chengdu University of Technology, Chengdu, Sichuan 610059, ChinaCollege of Energy （College of Modern Shale Gas Industry）, Chengdu University of Technology, Chengdu, Sichuan 610059, ChinaNew Energy Research Institute, Sinopec Xinxing Company, Beijing 100083, ChinaCollege of Energy （College of Modern Shale Gas Industry）, Chengdu University of Technology, Chengdu, Sichuan 610059, ChinaWhile the hydrogeochemical characteristics of a single geothermal field in Qinghai−Xizang Plateau are well understood, the study of hot spring gases in various graben systems and their spatial characteristics and evolutionary processes, remains insufficiently explored. The study reported 16 hot spring gases from three grabens (Cuona−Woka garben, Yadong−Gulu garben and Shenzha−Dingjie garben) in Qinghai−Xizang Plateau. The composition and isotopic characteristics as well as the sources of hot spring gas were analyzed. Additionally, the relationship between the content of hot spring gas and the reservior temperature was conducted in the three garbens. Three types of gases were distinguished in Qinghai−Xizang Plateau by using the “mantle suture line” as the boundary. The results show that hot spring gases in the north and south sides of the boundary have undergone different evolutionary processes, with some samples in the south showing evidence of degassing and fractionation. The sources of helium and carbon isotopes in the hot spring gases are mainly derived from the crust, and the migration of helium is dependent on the flow of carbon dioxide. There are significant differences of reservior temperature in the three garbens, with a higher temperature (225 °C) in the Yadong−Gulu graben. This study provides insights in understanding the relationship between structures, hot spring gases, and geothermal fields in Qinghai−Xizang Plateau. The exploration of gas geochemical characteristics and their evolutionary processes are significant for the understanding of the underground geological processes and the exploitation and utilization of geothermal resources.https://www.swdzgcdz.com/en/article/doi/10.16030/j.cnki.issn.1000-3665.202401037geochemistrygeothermal gasgeothermal thermometergas isotopes |
| spellingShingle | Sanyu QUAN Yingchun WANG Xin TANG Jinlin ZHOU Lu LUO Rongcai SONG Geochemical characteristics and evolution process for hot spring gas of the north-south graben system in Qinghai−Xizang Plateau Shuiwen dizhi gongcheng dizhi geochemistry geothermal gas geothermal thermometer gas isotopes |
| title | Geochemical characteristics and evolution process for hot spring gas of the north-south graben system in Qinghai−Xizang Plateau |
| title_full | Geochemical characteristics and evolution process for hot spring gas of the north-south graben system in Qinghai−Xizang Plateau |
| title_fullStr | Geochemical characteristics and evolution process for hot spring gas of the north-south graben system in Qinghai−Xizang Plateau |
| title_full_unstemmed | Geochemical characteristics and evolution process for hot spring gas of the north-south graben system in Qinghai−Xizang Plateau |
| title_short | Geochemical characteristics and evolution process for hot spring gas of the north-south graben system in Qinghai−Xizang Plateau |
| title_sort | geochemical characteristics and evolution process for hot spring gas of the north south graben system in qinghai xizang plateau |
| topic | geochemistry geothermal gas geothermal thermometer gas isotopes |
| url | https://www.swdzgcdz.com/en/article/doi/10.16030/j.cnki.issn.1000-3665.202401037 |
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