Factors controlling the distribution of granite reservoirs of hydrothermal system type in South China: A case study of Huangshadong geothermal field in Yuezhong Depression, China
The granitoids widely distributed in South China are characterized by multi-stage evolution via episodic intrusions, in a complex geodynamic setting. Since granites have high radioactive heat generation and excellent thermal conductivity, a deep moderate- to high-temperature geothermal system can be...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2023-10-01
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| Series: | Energy Geoscience |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666759223000069 |
| _version_ | 1797671990662791168 |
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| author | Jianyun Feng |
| author_facet | Jianyun Feng |
| author_sort | Jianyun Feng |
| collection | DOAJ |
| description | The granitoids widely distributed in South China are characterized by multi-stage evolution via episodic intrusions, in a complex geodynamic setting. Since granites have high radioactive heat generation and excellent thermal conductivity, a deep moderate- to high-temperature geothermal system can be formed in the presence of high-quality, fissured granite geothermal reservoirs and thermal insulation with appropriate cap rocks. The key to exploring deep geothermal resources is to identify high-quality fissured granite geothermal reservoirs of a certain scale in a thermal anomaly zone with high background heat-flow values. To determine the controlling effects of the distribution and development characteristics of granite geothermal reservoirs on the generation and enrichment of deep geothermal resources, this study analyzed the characteristics of the geothermal reservoirs in the Huangshadong geothermal field in the Yuezhong Depression, Guangdong Province, and their controlling effects on the formation of geothermal resources. The results are as follows. The hydrothermal system in the Huangshadong geothermal field mainly distributed in the contact zones between magmatic plutons and surrounding rocks, is significantly controlled by faults, followed by neoid volcanic apparatus and magmatic activities. That is, the geothermal system therein is under joint control of structures and magmas. Moreover, fractured zones of neoid transtensional faults conduct the geothermal water in the hydrothermal system and control its shallow discharge. Therefore, the hydrothermal system in the study area is characterized by the control of transpressional tectonic zone and volcanic apparatus, and geothermal water conduction through fractured zones of transtensional faults. |
| first_indexed | 2024-03-11T21:23:34Z |
| format | Article |
| id | doaj.art-11dbcaa2e8cd4da9b28357d887411300 |
| institution | Directory Open Access Journal |
| issn | 2666-7592 |
| language | English |
| last_indexed | 2024-03-11T21:23:34Z |
| publishDate | 2023-10-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Energy Geoscience |
| spelling | doaj.art-11dbcaa2e8cd4da9b28357d8874113002023-09-28T05:26:45ZengKeAi Communications Co., Ltd.Energy Geoscience2666-75922023-10-0144100160Factors controlling the distribution of granite reservoirs of hydrothermal system type in South China: A case study of Huangshadong geothermal field in Yuezhong Depression, ChinaJianyun Feng0SINOPEC Petroleum Exploration and Production Research Institute, Beijing, 102206, ChinaThe granitoids widely distributed in South China are characterized by multi-stage evolution via episodic intrusions, in a complex geodynamic setting. Since granites have high radioactive heat generation and excellent thermal conductivity, a deep moderate- to high-temperature geothermal system can be formed in the presence of high-quality, fissured granite geothermal reservoirs and thermal insulation with appropriate cap rocks. The key to exploring deep geothermal resources is to identify high-quality fissured granite geothermal reservoirs of a certain scale in a thermal anomaly zone with high background heat-flow values. To determine the controlling effects of the distribution and development characteristics of granite geothermal reservoirs on the generation and enrichment of deep geothermal resources, this study analyzed the characteristics of the geothermal reservoirs in the Huangshadong geothermal field in the Yuezhong Depression, Guangdong Province, and their controlling effects on the formation of geothermal resources. The results are as follows. The hydrothermal system in the Huangshadong geothermal field mainly distributed in the contact zones between magmatic plutons and surrounding rocks, is significantly controlled by faults, followed by neoid volcanic apparatus and magmatic activities. That is, the geothermal system therein is under joint control of structures and magmas. Moreover, fractured zones of neoid transtensional faults conduct the geothermal water in the hydrothermal system and control its shallow discharge. Therefore, the hydrothermal system in the study area is characterized by the control of transpressional tectonic zone and volcanic apparatus, and geothermal water conduction through fractured zones of transtensional faults.http://www.sciencedirect.com/science/article/pii/S2666759223000069South ChinaYuezhong depressionGranite geothermal reservoirHuangshadong geothermal fieldGeothermal system |
| spellingShingle | Jianyun Feng Factors controlling the distribution of granite reservoirs of hydrothermal system type in South China: A case study of Huangshadong geothermal field in Yuezhong Depression, China Energy Geoscience South China Yuezhong depression Granite geothermal reservoir Huangshadong geothermal field Geothermal system |
| title | Factors controlling the distribution of granite reservoirs of hydrothermal system type in South China: A case study of Huangshadong geothermal field in Yuezhong Depression, China |
| title_full | Factors controlling the distribution of granite reservoirs of hydrothermal system type in South China: A case study of Huangshadong geothermal field in Yuezhong Depression, China |
| title_fullStr | Factors controlling the distribution of granite reservoirs of hydrothermal system type in South China: A case study of Huangshadong geothermal field in Yuezhong Depression, China |
| title_full_unstemmed | Factors controlling the distribution of granite reservoirs of hydrothermal system type in South China: A case study of Huangshadong geothermal field in Yuezhong Depression, China |
| title_short | Factors controlling the distribution of granite reservoirs of hydrothermal system type in South China: A case study of Huangshadong geothermal field in Yuezhong Depression, China |
| title_sort | factors controlling the distribution of granite reservoirs of hydrothermal system type in south china a case study of huangshadong geothermal field in yuezhong depression china |
| topic | South China Yuezhong depression Granite geothermal reservoir Huangshadong geothermal field Geothermal system |
| url | http://www.sciencedirect.com/science/article/pii/S2666759223000069 |
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