Research on the characteristics and influencing factors of terrestrial heat flow in Guizhou Province

Terrestrial heat flow is an important physical parameter in the study of heat transfer and thermal structure of the earth and it has great significance in the genesis and development and utilization potential of regional geothermal resources. Although several breakthroughs in geothermal exploration...

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Main Authors: Shuai-chao Wei, Feng Liu, Wei Zhang, Gui-ling Wang, Ruo-xi Yuan, Yu-zhong Liao, Xiao-xue Yan
Format: Article
Language:English
Published: Groundwater Science and Engineering Limited 2022-06-01
Series:Journal of Groundwater Science and Engineering
Subjects:
Online Access:https://www.sciopen.com/article/10.19637/j.cnki.2305-7068.2022.02.006
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author Shuai-chao Wei
Feng Liu
Wei Zhang
Gui-ling Wang
Ruo-xi Yuan
Yu-zhong Liao
Xiao-xue Yan
author_facet Shuai-chao Wei
Feng Liu
Wei Zhang
Gui-ling Wang
Ruo-xi Yuan
Yu-zhong Liao
Xiao-xue Yan
author_sort Shuai-chao Wei
collection DOAJ
description Terrestrial heat flow is an important physical parameter in the study of heat transfer and thermal structure of the earth and it has great significance in the genesis and development and utilization potential of regional geothermal resources. Although several breakthroughs in geothermal exploration have been made in Guizhou Province. The terrestrial heat flow in this area has not been properly measured, restricting the development of geothermal resources in the province. For this reason, the terrestrial heat flow in Guizhou was measured in this study, during which the characteristics of heat flow were determined using borehole thermometry, geothermal monitoring and thermal property testing. Moreover, the influencing factors of the terrestrial heat flow were analyzed. The results show that the thermal conductivity of rocks ranges from 2.0 W/(m·K) to 5.0 W/(m·K), with an average of 3.399 W/(m·K); the heat flow varies from 30.27 mW/m2 to 157.55 mW/m2, with an average of 65.26 ± 20.93 mW/m2, which is slightly higher than that of the average heat flow in entire land area in China. The heat flow in Guizhou generally follows a dumbbell-shaped distribution, with high values present in the east and west and low values occurring in the north and south. The terrestrial heat flow is related to the burial depths of the Moho and Curie surface. The basaltic eruptions in the Emeishan led to a thinner lithosphere, thicker crust and lateral emplacement, which dominated the basic pattern of heat flow distribution in Guizhou. In addition, the dichotomous structure of regional active faults and concealed deep faults jointly control the heat transfer channels and thus influence the terrestrial heat flow.
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spelling doaj.art-21814ff0ff2b4d36a68e0f781d45fe4e2023-02-16T10:06:51ZengGroundwater Science and Engineering LimitedJournal of Groundwater Science and Engineering2305-70682022-06-0110216618310.19637/j.cnki.2305-7068.2022.02.006Research on the characteristics and influencing factors of terrestrial heat flow in Guizhou ProvinceShuai-chao Wei0Feng Liu1Wei Zhang2Gui-ling Wang3Ruo-xi Yuan4Yu-zhong Liao5Xiao-xue Yan6Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang 050061, ChinaInstitute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang 050061, ChinaInstitute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang 050061, ChinaInstitute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang 050061, ChinaInstitute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang 050061, ChinaInstitute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang 050061, ChinaInstitute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang 050061, ChinaTerrestrial heat flow is an important physical parameter in the study of heat transfer and thermal structure of the earth and it has great significance in the genesis and development and utilization potential of regional geothermal resources. Although several breakthroughs in geothermal exploration have been made in Guizhou Province. The terrestrial heat flow in this area has not been properly measured, restricting the development of geothermal resources in the province. For this reason, the terrestrial heat flow in Guizhou was measured in this study, during which the characteristics of heat flow were determined using borehole thermometry, geothermal monitoring and thermal property testing. Moreover, the influencing factors of the terrestrial heat flow were analyzed. The results show that the thermal conductivity of rocks ranges from 2.0 W/(m·K) to 5.0 W/(m·K), with an average of 3.399 W/(m·K); the heat flow varies from 30.27 mW/m2 to 157.55 mW/m2, with an average of 65.26 ± 20.93 mW/m2, which is slightly higher than that of the average heat flow in entire land area in China. The heat flow in Guizhou generally follows a dumbbell-shaped distribution, with high values present in the east and west and low values occurring in the north and south. The terrestrial heat flow is related to the burial depths of the Moho and Curie surface. The basaltic eruptions in the Emeishan led to a thinner lithosphere, thicker crust and lateral emplacement, which dominated the basic pattern of heat flow distribution in Guizhou. In addition, the dichotomous structure of regional active faults and concealed deep faults jointly control the heat transfer channels and thus influence the terrestrial heat flow.https://www.sciopen.com/article/10.19637/j.cnki.2305-7068.2022.02.006thermal conductivityterrestrial heat flowmohocurie surfaceemeishan basaltic
spellingShingle Shuai-chao Wei
Feng Liu
Wei Zhang
Gui-ling Wang
Ruo-xi Yuan
Yu-zhong Liao
Xiao-xue Yan
Research on the characteristics and influencing factors of terrestrial heat flow in Guizhou Province
Journal of Groundwater Science and Engineering
thermal conductivity
terrestrial heat flow
moho
curie surface
emeishan basaltic
title Research on the characteristics and influencing factors of terrestrial heat flow in Guizhou Province
title_full Research on the characteristics and influencing factors of terrestrial heat flow in Guizhou Province
title_fullStr Research on the characteristics and influencing factors of terrestrial heat flow in Guizhou Province
title_full_unstemmed Research on the characteristics and influencing factors of terrestrial heat flow in Guizhou Province
title_short Research on the characteristics and influencing factors of terrestrial heat flow in Guizhou Province
title_sort research on the characteristics and influencing factors of terrestrial heat flow in guizhou province
topic thermal conductivity
terrestrial heat flow
moho
curie surface
emeishan basaltic
url https://www.sciopen.com/article/10.19637/j.cnki.2305-7068.2022.02.006
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