Geological factors controlling deep geothermal anomalies in the Qianjiaying Mine, China
Here, the geological factors controlling deep geothermal anomalies in mines were studied based on the geotemperature, lithologic thermal conductivity, and related geological data collected from the Qianjiaying Mine, China. A simulation of the change in magma waste heat, conducted using the ANSYS Wor...
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| Format: | Article |
| Language: | English |
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Elsevier
2020-11-01
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| Series: | International Journal of Mining Science and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2095268619304537 |
| _version_ | 1828779055875358720 |
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| author | Wenbin Yang Shengbo Han Wu Li |
| author_facet | Wenbin Yang Shengbo Han Wu Li |
| author_sort | Wenbin Yang |
| collection | DOAJ |
| description | Here, the geological factors controlling deep geothermal anomalies in mines were studied based on the geotemperature, lithologic thermal conductivity, and related geological data collected from the Qianjiaying Mine, China. A simulation of the change in magma waste heat, conducted using the ANSYS Workbench, revealed the distribution characteristics of geothermal anomalies in this mine and the corresponding geological control factors. The results revealed the following points. (1) First-degree heat hazard level (temperature = 31–37 ℃) occurred in the central and southwestern parts of the mine at an ~600-m depth, while second-degree heat hazard level (temperature ≥ 37 ℃) occurred at an ~800-m depth. The geotemperature and geothermal gradient in the southwestern part of the mine were anomalously high. (2) The geotemperatures measured in the mine generally reflected a standard increase with depth, while the geothermal gradient remained unchanged with depth. The geothermal gradient and its average value in the study area were 0.70–4.23 and 2.12 °C·hm−1, respectively. (3) A combination of stratum characteristics, geological structure, and groundwater characteristics led to geothermal anomalies in mines; additionally, the waste heat from magma had no significant effect on the geothermal field. |
| first_indexed | 2024-12-11T16:54:32Z |
| format | Article |
| id | doaj.art-54e0c8c8beed4b04a0882a812ce8d132 |
| institution | Directory Open Access Journal |
| issn | 2095-2686 |
| language | English |
| last_indexed | 2024-12-11T16:54:32Z |
| publishDate | 2020-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | International Journal of Mining Science and Technology |
| spelling | doaj.art-54e0c8c8beed4b04a0882a812ce8d1322022-12-22T00:57:59ZengElsevierInternational Journal of Mining Science and Technology2095-26862020-11-01306839847Geological factors controlling deep geothermal anomalies in the Qianjiaying Mine, ChinaWenbin Yang0Shengbo Han1Wu Li2Key Laboratory of Coalbed Methane Resource & Reservoir Formation Process, Ministry of Education, China University of Mining and Technology, Xuzhou 221008, ChinaKey Laboratory of Coalbed Methane Resource & Reservoir Formation Process, Ministry of Education, China University of Mining and Technology, Xuzhou 221008, ChinaCorresponding author.; Key Laboratory of Coalbed Methane Resource & Reservoir Formation Process, Ministry of Education, China University of Mining and Technology, Xuzhou 221008, ChinaHere, the geological factors controlling deep geothermal anomalies in mines were studied based on the geotemperature, lithologic thermal conductivity, and related geological data collected from the Qianjiaying Mine, China. A simulation of the change in magma waste heat, conducted using the ANSYS Workbench, revealed the distribution characteristics of geothermal anomalies in this mine and the corresponding geological control factors. The results revealed the following points. (1) First-degree heat hazard level (temperature = 31–37 ℃) occurred in the central and southwestern parts of the mine at an ~600-m depth, while second-degree heat hazard level (temperature ≥ 37 ℃) occurred at an ~800-m depth. The geotemperature and geothermal gradient in the southwestern part of the mine were anomalously high. (2) The geotemperatures measured in the mine generally reflected a standard increase with depth, while the geothermal gradient remained unchanged with depth. The geothermal gradient and its average value in the study area were 0.70–4.23 and 2.12 °C·hm−1, respectively. (3) A combination of stratum characteristics, geological structure, and groundwater characteristics led to geothermal anomalies in mines; additionally, the waste heat from magma had no significant effect on the geothermal field.http://www.sciencedirect.com/science/article/pii/S2095268619304537Geothermal anomaliesHeat hazardGeological factorsThermal conductivityThermal evolutionMine |
| spellingShingle | Wenbin Yang Shengbo Han Wu Li Geological factors controlling deep geothermal anomalies in the Qianjiaying Mine, China International Journal of Mining Science and Technology Geothermal anomalies Heat hazard Geological factors Thermal conductivity Thermal evolution Mine |
| title | Geological factors controlling deep geothermal anomalies in the Qianjiaying Mine, China |
| title_full | Geological factors controlling deep geothermal anomalies in the Qianjiaying Mine, China |
| title_fullStr | Geological factors controlling deep geothermal anomalies in the Qianjiaying Mine, China |
| title_full_unstemmed | Geological factors controlling deep geothermal anomalies in the Qianjiaying Mine, China |
| title_short | Geological factors controlling deep geothermal anomalies in the Qianjiaying Mine, China |
| title_sort | geological factors controlling deep geothermal anomalies in the qianjiaying mine china |
| topic | Geothermal anomalies Heat hazard Geological factors Thermal conductivity Thermal evolution Mine |
| url | http://www.sciencedirect.com/science/article/pii/S2095268619304537 |
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