Geochemistry of hot springs in the Tengchong hydrothermal areas, Southwestern China

Guo, Qinghai; Wang, Yanxin

doi:10.1016/j.jvolgeores.2011.12.003

Cited by 135 publications

(57 citation statements)

References 18 publications

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“…1). The TVF is characterized by both large-scale Holocene volcanic eruptions [including the Dayingshan active volcano, which erupted at AD 1609 as described by Chinese geographer Xu Xiake (1587-1641) of the Ming Dynasty; Huangfu and Jiang, 2000] and significant hydrothermal activities (Xu et al, 2004;Shangguan et al, 2005;Guo et al, 2012). Recent geochemical studies (e.g., Guo et al, 2015a) have recognized the Indian continent-derived components in mantle source region of the Late Cenozoic high-K calc-alkaline volcanic rocks in the TVF.…”

Section: Introductionmentioning

confidence: 99%

Magma-derived CO 2 emissions in the Tengchong volcanic field, SE Tibet: Implications for deep carbon cycle at intra-continent subduction zone

Zhang

Guo

Sano

et al. 2016

Journal of Asian Earth Sciences

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Section: Introductionmentioning

confidence: 99%

Magma-derived CO 2 emissions in the Tengchong volcanic field, SE Tibet: Implications for deep carbon cycle at intra-continent subduction zone

Zhang

Guo

Sano

et al. 2016

Journal of Asian Earth Sciences

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“…The excellent linear relationships between these elements and Cl (Figure 4) show evidence for mixing between cold groundwater and a geothermal fluid with Li, Rb, Cs, and Sr as characteristic constituents. The differences in the correlation plots can be attributed to geochemical processes along deep regional flow paths, in which thermal water approaches chemical equilibrium with different host rock types at different subsurface temperatures [43].…”

Section: Trace Elementsmentioning

confidence: 99%

Hydrogeochemical Characteristics and Geothermometry Applications of Thermal Waters in Coastal Xinzhou and Shenzao Geothermal Fields, Guangdong, China

Wang

2018

Geofluids

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Two separate groups of geothermal waters have been identified in the coastal region of Guangdong, China. One is Xinzhou thermal water of regional groundwater flow system in a granite batholith and the other is thermal water derived from shallow coastal aquifers in Shenzao geothermal field, characterized by high salinity. The hydrochemical characteristics of the thermal waters were examined and characterized as Na-Cl and Ca-Na-Cl types, which are very similar to that of seawater. The hydrochemical evolution is revealed by analyzing the correlations of components versus Cl and their relative changes for different water samples, reflecting different extents of water-rock interactions and clear mixing trends with seawaters. Nevertheless, isotopic data indicate that thermal waters are all of the meteoric origins. Isotopic data also allowed determination of different recharge elevations and presentation of different mixing proportions of seawater with thermal waters. The reservoir temperatures were estimated by chemical geothermometries and validated by fluid-mineral equilibrium calculations. The most reliable estimates of reservoir temperature lie in the range of 148-162 ∘ C for Xinzhou and the range of 135-144 ∘ C for Shenzao thermal waters, based on the retrograde and prograde solubilities of anhydrite and chalcedony. Finally, a schematic cross-sectional fault-hydrology conceptual model was proposed.

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“…Such study is important in evaluating the geothermal energy potential. A multivariate statistical technique is an effective tool of interpreting a relationship between hydrochemistry and origin of springs [8][9][10][11]. Cluster analysis, factor analysis (FA), and principal components analysis (PCA) have been successfully used in characterizing geochemical data and the hydrochemical evolution of the groundwater [9,[12][13][14][15][16].…”

Section: I I I I I Ia Ia Ia I I I I I I I Ia Ia I I I Ia I I I I Iamentioning

confidence: 99%

Hydrogeochemical Characteristics and Evolution of Hot Springs in Eastern Tibetan Plateau Geothermal Belt, Western China: Insight from Multivariate Statistical Analysis

Shi

Wang

et al. 2017

Geofluids

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The eastern Tibetan Plateau geothermal belt is one of the important medium-high temperature geothermal belts in China. However, less work has been done on the hydrochemical characteristic and its geological origin. Understanding the chemical characteristics and the hydrochemical evolution processes is important in evaluating the geothermal energy potential in this area. In the present study, we discussed the hydrochemical properties and their origins of 39 hot springs located in the eastern Tibetan Plateau geothermal belt (Kangding-Litang-Batang geothermal belt). Cluster analysis and factor analysis are employed to character the hydrochemical properties of hot springs in different fault zones and the possible hydrochemical evolution processes of these hot springs. Our study shows that the hot springs can be divided into three groups based on their locations. The hot springs in the first group mainly originate from the volcanic rock and the springs in the second group originate from the metamorphic rock while the springs in the third group originate from the result of mixture of shallow water. Water-rock interaction, cation exchange, and the water environment are the three dominant factors that control the hydrochemical evolution process in the eastern Tibetan Plateau. These results are also in well agreement with the isotopic and chemical analysis.

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Geochemistry of hot springs in the Tengchong hydrothermal areas, Southwestern China

Cited by 135 publications

References 18 publications

Magma-derived CO 2 emissions in the Tengchong volcanic field, SE Tibet: Implications for deep carbon cycle at intra-continent subduction zone

Magma-derived CO 2 emissions in the Tengchong volcanic field, SE Tibet: Implications for deep carbon cycle at intra-continent subduction zone

Hydrogeochemical Characteristics and Geothermometry Applications of Thermal Waters in Coastal Xinzhou and Shenzao Geothermal Fields, Guangdong, China

Hydrogeochemical Characteristics and Evolution of Hot Springs in Eastern Tibetan Plateau Geothermal Belt, Western China: Insight from Multivariate Statistical Analysis

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