中文版 | English
Title

Magmatic fluid input controlling the geochemical and isotopic characteristics of geothermal waters along the Yadong-Gulu rift, southern Tibetan Plateau

Author
Corresponding AuthorKuang, Xingxing
Publication Years
2023-04
DOI
Source Title
ISSN
0022-1694
EISSN
1879-2707
Volume619
Abstract
Geothermal resources, regarded as sustainable green energy, are attracting increasing attention. The southern Tibetan Plateau possesses the most abundant intermediate-high geothermal resources in China and has enormous potential for geothermal exploration. Geothermal waters from the Yadong-Gulu Rift (YGR), which is considered as the most active geothermal belt of the plateau, are studied based on hydrochemical and isotopic characteristics to understand the spatial variations of fluid origin, evolution, and circulation mechanism as well as heat sources. The hydrochemical characteristics of cold springs and surface waters are consistently characterized by Ca-HCO3 dominated (Ca-HCO3 and Ca-HCO3·SO4) waters while those of geothermal springs present extensive variability with Na-Cl dominated (Na-Cl·HCO3, Na-HCO3·Cl, Na·Ca-Cl·HCO3) and Na-HCO3 waters. The main geochemical processes controlling the geothermal springs are combinations of silicate weathering, carbonate dissolution, and cation exchange. The characteristics of trace alkali metals and B indicate they undergone common/similar deep process and the potential input of magmatic degassing. The δD and δ18O values suggest that cold springs and surface waters are recharged by meteoric water, and geothermal springs are replenished by meteoric water, snow-melt, and magmatic fluid. The mass balance model reveal that dominant carbon sources for geothermal waters can be deeply derived CO2 (i.e., magmatic source and metamorphic source), contributing from 77% to 99%. Based on empirical chemical geothermometers, Si-Enthalpy mixing model, and geothermometrical modelling, the calculated reservoir temperatures are highly variable (137-312 °C). The circulation depths of geothermal waters are 2.45-6.85 km. A conceptual model is proposed to reveal the deep groundwater circulation.
© 2023
Keywords
URL[Source Record]
Indexed By
EI ; SCI
Language
English
SUSTech Authorship
First ; Corresponding
Funding Project
We thank for reviewers for their valuable comments and editor for efficient editorial handling. This study was supported by the National Natural Science Foundation of China (Grant No. 91747204 and No. 92047202), and High-level Special Funding of the Southern University of Science and Technology (Grant Nos. G02296302, G02296402).
WOS Research Area
Engineering ; Geology ; Water Resources
WOS Subject
Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS Accession No
WOS:000951964900001
Publisher
EI Accession Number
20231113731091
EI Keywords
Calcium compounds ; Chlorine compounds ; Geothermal fields ; Geothermal springs ; Geothermal wells ; Groundwater ; Groundwater geochemistry ; Hydrochemistry ; Process control ; Silicates ; Sodium compounds ; Surface waters ; Trace elements ; Underground reservoirs
ESI Classification Code
Reservoirs:441.2 ; Surface Water:444.1 ; Groundwater:444.2 ; Geochemistry:481.2 ; Geothermal Phenomena:481.3.1 ; Geothermal Energy:615.1
ESI Research Field
ENGINEERING
Data Source
EV Compendex
Citation statistics
Cited Times [WOS]:0
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/519639
DepartmentSchool of Environmental Science and Engineering
Affiliation
1.School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen; 518055, China
2.Shenzhen Municipal Engineering Lab of Environmental IoT Technologies, Southern University of Science and Technology, Shenzhen; 518055, China
First Author AffilicationSchool of Environmental Science and Engineering
Corresponding Author AffilicationSchool of Environmental Science and Engineering;  Southern University of Science and Technology
First Author's First AffilicationSchool of Environmental Science and Engineering
Recommended Citation
GB/T 7714
Zhou, Hui,Kuang, Xingxing,Hao, Yinlei,et al. Magmatic fluid input controlling the geochemical and isotopic characteristics of geothermal waters along the Yadong-Gulu rift, southern Tibetan Plateau[J]. JOURNAL OF HYDROLOGY,2023,619.
APA
Zhou, Hui.,Kuang, Xingxing.,Hao, Yinlei.,Wang, Can.,Feng, Yuqing.,...&Zheng, Chunmiao.(2023).Magmatic fluid input controlling the geochemical and isotopic characteristics of geothermal waters along the Yadong-Gulu rift, southern Tibetan Plateau.JOURNAL OF HYDROLOGY,619.
MLA
Zhou, Hui,et al."Magmatic fluid input controlling the geochemical and isotopic characteristics of geothermal waters along the Yadong-Gulu rift, southern Tibetan Plateau".JOURNAL OF HYDROLOGY 619(2023).
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