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Hot Spring Gas Geochemical Characteristics and Geological Implications of the Northern Yadong-Gulu Rift in the Tibetan Plateau

文献类型：期刊论文

作者Yu, Xiaoli1,2; Wei, Zhifu2; Wang, Gen2; Ma, Xueyun1,2; Zhang, Ting2; Yang, Hui2; Li, Liwu2; Zhou, Shixin2; Wang, Xianbin2
刊名FRONTIERS IN EARTH SCIENCE
出版日期2022-05-12
卷号10页码:10
关键词He CO2 gas geochemistry S-N trending rift Tibetan Plateau Yadong-Gulu rift
DOI10.3389/feart.2022.863559
英文摘要To reveal the heat source and its formation mechanism of the northern Yadong-Gulu rift (YGR), we analyzed the helium isotope, carbon isotope (delta C-13(CO2)), and CO2/He-3 and CH4/He-3 ratios of hot spring gases for tracing the source of volatiles and discussing their geological significance. The results show the following: helium is mainly derived from the crust, and the radioactive decay of the thicker crust and granites provided more He-4 to the low helium isotopes; thermal decomposition of carbonate rocks is the main source of CO2; CH4 may be of organic origin. To sum up, the gas geochemical characteristics of hot springs in the northern YGR indicate that the volatiles are mainly derived from the crust. The crust/mantle heat flow ratios (q(c)/q(m)) calculated by helium isotopes cover a range of 0.84-1.48, suggesting that the heat is mainly contributed by the crust. The crustal origin gas and heat flow demonstrates that the heat source beneath the northern YGR is formed by the process of interior crust. Combined with geophysical data, we suggest that the stress heat caused by the collision of the Indo-Eurasian plate and the radiant heating of the crust lead to the heat source (partial melting) and provide heat for thermal activities.
WOS关键词CARBON ISOTOPIC COMPOSITIONS ; RUNGWE VOLCANIC PROVINCE ; INDIAN LITHOSPHERIC SLAB ; SOUTHERN TIBET ; HEAT-FLOW ; GEOTHERMAL FIELDS ; FAULT ZONE ; HYDROTHERMAL SYSTEMS ; CONTINENTAL AREA ; VOLATILE FLUXES
资助项目National Natural Science Foundation of China[41172133] ; National Natural Science Foundation of China[41831176] ; National Natural Science Foundation of China[41902028] ; National Natural Science Foundation of China[41972030] ; Second Tibetan Plateau Scientific Expedition and Research (STEP) Program[2019QZKK0707] ; National Key R&D Program of China[2017YFA0604803] ; Chinese Academy of Sciences Key Project[XDB26020302] ; CAS Light of West China Program ; Key Laboratory Project of Gansu[1309RTSA041]
WOS研究方向Geology
语种英语
出版者FRONTIERS MEDIA SA
WOS记录号WOS:000804660000001
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research (STEP) Program ; Second Tibetan Plateau Scientific Expedition and Research (STEP) Program ; National Key R&D Program of China ; National Key R&D Program of China ; Chinese Academy of Sciences Key Project ; Chinese Academy of Sciences Key Project ; CAS Light of West China Program ; CAS Light of West China Program ; Key Laboratory Project of Gansu ; Key Laboratory Project of Gansu ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research (STEP) Program ; Second Tibetan Plateau Scientific Expedition and Research (STEP) Program ; National Key R&D Program of China ; National Key R&D Program of China ; Chinese Academy of Sciences Key Project ; Chinese Academy of Sciences Key Project ; CAS Light of West China Program ; CAS Light of West China Program ; Key Laboratory Project of Gansu ; Key Laboratory Project of Gansu ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research (STEP) Program ; Second Tibetan Plateau Scientific Expedition and Research (STEP) Program ; National Key R&D Program of China ; National Key R&D Program of China ; Chinese Academy of Sciences Key Project ; Chinese Academy of Sciences Key Project ; CAS Light of West China Program ; CAS Light of West China Program ; Key Laboratory Project of Gansu ; Key Laboratory Project of Gansu ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research (STEP) Program ; Second Tibetan Plateau Scientific Expedition and Research (STEP) Program ; National Key R&D Program of China ; National Key R&D Program of China ; Chinese Academy of Sciences Key Project ; Chinese Academy of Sciences Key Project ; CAS Light of West China Program ; CAS Light of West China Program ; Key Laboratory Project of Gansu ; Key Laboratory Project of Gansu
源URL[http://ir.iggcas.ac.cn/handle/132A11/106067]  
专题地质与地球物理研究所_兰州油气中心
通讯作者Yu, Xiaoli
作者单位1.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China
2.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Petr Resources Res, Lanzhou, Gansu, Peoples R China
推荐引用方式
GB/T 7714		 Yu, Xiaoli,Wei, Zhifu,Wang, Gen,et al. Hot Spring Gas Geochemical Characteristics and Geological Implications of the Northern Yadong-Gulu Rift in the Tibetan Plateau[J]. FRONTIERS IN EARTH SCIENCE,2022,10:10.
APA Yu, Xiaoli.,Wei, Zhifu.,Wang, Gen.,Ma, Xueyun.,Zhang, Ting.,...&Wang, Xianbin.(2022).Hot Spring Gas Geochemical Characteristics and Geological Implications of the Northern Yadong-Gulu Rift in the Tibetan Plateau.FRONTIERS IN EARTH SCIENCE,10,10.
MLA Yu, Xiaoli,et al."Hot Spring Gas Geochemical Characteristics and Geological Implications of the Northern Yadong-Gulu Rift in the Tibetan Plateau".FRONTIERS IN EARTH SCIENCE 10(2022):10.

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来源：地质与地球物理研究所

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