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Present-day geothermal field of Xiongan New Area and its heat source mechanism
Wang ZhuTing1,2,3; Zhang Chao1,2,3; Jiang GuangZheng1,2,3; Hu Jie1,2,3; Tang XianChun4; Hu ShengBiao1,2,3
2019-11-01
Source PublicationCHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
ISSN0001-5733
Volume62Issue:11Pages:4313-4322
AbstractGeologically the Xiongan New Area is within the Jizhong Depression of Bohai Bay Basin. The study area consists of 3 lower-order structural units : the Rongcheng Uplift, the Niutuozhen Uplift and the Gaoyang Uplift. Temperature logs from 8 boreholes and thermal conductivity measurements of 108 rock samples are newly acquired. Integrated with previous research, the present geothermal gradients and heat flow distribution within the Xiongan New Area are analyzed. Results shows that in vertical direction the geothermal system can be divided into two parts : the upper sedimentary layer with the geothermal gradients ranging from 25. 2 similar to 58. 9 degrees C . km(-1), and the bedrock layer with geothermal gradients around 5 degrees C . km(-1). In addition, the temperature gradient distribution is associate with the structural units, the Niutuozhen Uplift has the highest geothermal gradient which ranges from 46. 5 degrees C . km(-1) to 58.9 degrees C . km(-1); the geothermal gradient is slightly lower in the Rongcheng Uplift with the values vary from 32. 0 degrees C. km(-1) to 40. 9 degrees C . km(-1), the depression and low uplift Area has the lowest geothermal gradient in which the only one borehole shows the average geothermal gradient of 25. 2 degrees C . km(-1). The heat flow map which is conducted through collecting published data shows the similar tendency, the uplift area has the higher heat flow value than the depression. The high present temperature field of Xiongan New Area has great associated with the back-arc tectonic background. The convection of the groundwater, the combination of the stratum and the well-developed faults that all contribute the high present temperature field of this area.
KeywordXiongan new area Borehole temperature logging Thermal conductivity Heat flow
DOI10.6038/cjg2019M0326
WOS KeywordTHERMAL-CONDUCTIVITY ; FLOW ; BASIN
Language英语
WOS Research AreaGeochemistry & Geophysics
WOS SubjectGeochemistry & Geophysics
WOS IDWOS:000495446500019
PublisherSCIENCE PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/95747
Collection岩石圈演化国家重点实验室
Corresponding AuthorWang ZhuTing
Affiliation1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithosphere Evolut, Beijing 100029, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
4.Chinese Acad Geol Sci, Beijing 100037, Peoples R China
First Author AffilicationInstitute of Geology and Geophysics, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Geology and Geophysics, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Wang ZhuTing,Zhang Chao,Jiang GuangZheng,et al. Present-day geothermal field of Xiongan New Area and its heat source mechanism[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2019,62(11):4313-4322.
APA Wang ZhuTing,Zhang Chao,Jiang GuangZheng,Hu Jie,Tang XianChun,&Hu ShengBiao.(2019).Present-day geothermal field of Xiongan New Area and its heat source mechanism.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,62(11),4313-4322.
MLA Wang ZhuTing,et al."Present-day geothermal field of Xiongan New Area and its heat source mechanism".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 62.11(2019):4313-4322.
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