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Mapping the Geothermal System Using AMT and MT in the Mapamyum (QP) Field, Lake Manasarovar, Southwestern Tibet

文献类型：期刊论文

作者He, Lanfang1; Chen, Ling1,2; Dorji3; Xi, Xiaolu4; Zhao, Xuefeng5; Chen, Rujun5; Yao, Hongchun5
刊名ENERGIES
出版日期2016-10-01
卷号9期号:10
关键词geothermal system audio magnetotellurics magnetotellurics mapping Southwestern Tibet
DOI10.3390/en9100855
文献子类Article
英文摘要Southwestern Tibet plays a crucial role in the protection of the ecological environment and biodiversity of Southern Asia but lacks energy in terms of both power and fuel. The widely distributed geothermal resources in this region could be considered as potential alternative sources of power and heat. However, most of the known geothermal fields in Southwestern Tibet are poorly prospected and currently almost no geothermal energy is exploited. Here we present a case study mapping the Mapamyum (QP) geothermal field of Southwestern Tibet using audio magnetotellurics (AMT) and magnetotellurics (MT) methods. AMT in the frequency range 11.5-11,500 Hz was used to map the upper part of this geothermal reservoir to a depth of 1000 m, and MT in the frequency range 0.001-320 Hz was used to map the heat source, thermal fluid path, and lower part of the geothermal reservoir to a depth greater than 1000 m. Data from 1300 MT and 680 AMT stations were acquired around the geothermal field. Bostick conversion with electromagnetic array profiling (EMAP) filtering and nonlinear conjugate gradient inversion (NLCGI) was used for data inversion. The AMT and MT results presented here elucidate the geoelectric structure of the QP geothermal field, and provide a background for understanding the reservoir, the thermal fluid path, and the heat source of the geothermal system. We identified a low resistivity anomaly characterized by resistivity in the range of 1-8 Omega.m at a depth greater than 7 km. This feature was interpreted as a potential reflection of the partially melted magma in the upper crust, which might correlate to mantle upwelling along the Karakorum fault. It is likely that the magma is the heat source of the QP geothermal system, and potentially provides new geophysical evidence to understand the occurrence of the partially melted magmas in the upper crust in Southwestern Tibet.
WOS关键词TECTONIC EVOLUTION ; HIMALAYAN OROGEN ; SOUTHERN TIBET ; CHINA ; CONSTRAINTS ; EXPLORATION ; RESOURCES ; PLATEAU ; ENERGY ; FLUIDS
WOS研究方向Energy & Fuels
语种英语
WOS记录号WOS:000388578800096
资助机构Chinese Geological Prospecting Fund(121201010000150005 ; Chinese Geological Prospecting Fund(121201010000150005 ; Chinese Geological Prospecting Fund(121201010000150005 ; Chinese Geological Prospecting Fund(121201010000150005 ; National Natural Science Foundation of China(41274078) ; National Natural Science Foundation of China(41274078) ; National Natural Science Foundation of China(41274078) ; National Natural Science Foundation of China(41274078) ; 12120113095200) ; 12120113095200) ; 12120113095200) ; 12120113095200) ; Chinese Geological Prospecting Fund(121201010000150005 ; Chinese Geological Prospecting Fund(121201010000150005 ; Chinese Geological Prospecting Fund(121201010000150005 ; Chinese Geological Prospecting Fund(121201010000150005 ; National Natural Science Foundation of China(41274078) ; National Natural Science Foundation of China(41274078) ; National Natural Science Foundation of China(41274078) ; National Natural Science Foundation of China(41274078) ; 12120113095200) ; 12120113095200) ; 12120113095200) ; 12120113095200)
源URL[http://ir.iggcas.ac.cn/handle/132A11/53226]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100029, Peoples R China
3.Tibet Bur Explorat & Dev Geol & Mineral Resources, Lasa 850000, Peoples R China
4.Nanjing Univ Sci & Technol, Sch Comp Sci & Engn, Nanjing 210094, Jiangsu, Peoples R China
5.Cent S Univ, Informat & Geophys Inst, Changsha 410073, Hunan, Peoples R China
推荐引用方式
GB/T 7714		 He, Lanfang,Chen, Ling,Dorji,et al. Mapping the Geothermal System Using AMT and MT in the Mapamyum (QP) Field, Lake Manasarovar, Southwestern Tibet[J]. ENERGIES,2016,9(10).
APA He, Lanfang.,Chen, Ling.,Dorji.,Xi, Xiaolu.,Zhao, Xuefeng.,...&Yao, Hongchun.(2016).Mapping the Geothermal System Using AMT and MT in the Mapamyum (QP) Field, Lake Manasarovar, Southwestern Tibet.ENERGIES,9(10).
MLA He, Lanfang,et al."Mapping the Geothermal System Using AMT and MT in the Mapamyum (QP) Field, Lake Manasarovar, Southwestern Tibet".ENERGIES 9.10(2016).

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来源：地质与地球物理研究所

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