Classical and integrated multicomponent geothermometry at the Tengchong geothermal field, Southwestern China

Xu, Tianfu; Hou, Zhaoyun; Jia, Xiaofeng; Spycher, Nicolas; Jiang, Zhenjiao; Feng, Bo; Jin, Na; Yuan, Yilong

doi:10.1007/s12665-016-6298-6

Cited by 20 publications

(14 citation statements)

References 10 publications

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“…Geothermometers are based on the solubility and the equilibrium of the minerals in the reservoir, which are affected by the temperature at different ranges; therefore, they have been widely applied to estimate the reservoir temperature [ 30 , 31 , 32 ]. The hot water in the TVG is stored in the Wuchihshan Formation, which consists of quartz-rich sandstone [ 33 ].…”

Section: Methodsmentioning

confidence: 99%

Analysis of Hydrothermal Systems Beneath Tayukeng through Long-Term Geochemical Signals of Hydrothermal Fluids in Tatun Volcano Group, Taiwan

Yeh

Hsu

2021

IJERPH

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The Tatun Volcano Group (TVG) is located in northern Taiwan and consists of many springs and fumaroles. The Tayukeng (TYK) area is the most active fumarole site in the TVG. In this study, we analyzed the long-term geochemical variations of hydrothermal fluids and proposed a mechanism responsible for the variation in TYK. There are two different aquifers beneath the TYK area: a shallow SO42−-rich aquifer and a deeper aquifer rich in Cl−. TYK thermal water was mainly supplied by the shallow SO42−-rich aquifer; therefore, the thermal water showed high SO42− concentrations. After 2015, the inflow of deep thermal water increased, causing the Cl− concentrations of the TYK to increase. Notably, the inferred reservoir temperatures based on quartz geothermometry increased; however, the surface temperature of the spring decreased. We inferred that the enthalpy was lost during transportation to the surface. Therefore, the surface temperature of the spring does not increase with an increased inflow of deep hydrothermal fluid. The results can serve as a reference for understanding the complex evolution of the magma-hydrothermal system in the TVG.

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Section: Methodsmentioning

confidence: 99%

Analysis of Hydrothermal Systems Beneath Tayukeng through Long-Term Geochemical Signals of Hydrothermal Fluids in Tatun Volcano Group, Taiwan

Yeh

Hsu

2021

IJERPH

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“…The relationship between Cland Na + concentrations (Figure 3(a)) is usually used to reveal a dilution process as the deep reservoir fluid ascends to the surface [8]. The specified deviations of Na/Cl trends in the Julong-Jinjiang thermal springs and Shibadaogou-Xianrenqiao thermal springs are shown in Figure 3(a), as they originate from different deep heat reservoirs and then draw on different hydrothermal systems.…”

Section: Hydrogeochemical Characteristics Of Thermal Springsmentioning

confidence: 99%

“…Compared with classic geothermometers, IMG corrects chemical reactions, dilution, and boiling affecting the fluid chemical composition as it ascends from depth to the ground surface. The method has been validated in context using fluid analyses, numerical simulations, and mineralogical data from geothermal systems [7,8].…”

Section: Introductionmentioning

confidence: 99%

The Estimation of Reservoir Temperature for Thermal Springs Using the Integrated Multicomponent Geothermometry Method at Changbai Mountain, Northeastern Songliao Basin, China

et al. 2020

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The Changbai Mountain volcanic region, eastern Songliao Plain, China, is considered a potential target development area for geothermal water exploitation. To assess the feasibility of geothermal development, we applied integrated multicomponent geothermometry (IMG) in the program GeoT to estimate the geothermal reservoir temperatures for four major thermal springs in this area. Numerical optimizations of Al and HCO3- concentrations, dilutions, and steam fractions were conducted to reconstruct the original deep fluid compositions by the IMG method. The results show that the geothermal reservoir temperatures of these springs range from 118 to 172°C in the Changbai Mountain volcanic region. In contrast to classic geothermometers, the IMG method can quantify processes affecting the fluid chemical composition and yield reasonable temperatures. The reservoir temperatures for the Julong and Jinjiang thermal springs are significantly greater than those for the Shibadaogou and Xianrenqiao thermal springs. Moreover, the geothermal deep circulation characteristics of the above springs are also investigated based on reservoir temperature estimates. The methods presented in this study could be applied to other geothermal fields under similar geothermal resource conditions.

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“…Xu et al (2016) used classical and integrated multicomponent chemical geothermometry to estimate the reservoir temperature of the Tengchong geothermal field in Southwest China, which is the only high-temperature geothermal field related to modern volcanic activity in China. Geochemical workers now pay much attention to gaseous components in geothermal fluids in addition to aqueous components in the study of high-temperature geothermal systems in particular.…”

Section: Hydrothermal Energymentioning

confidence: 99%

Progress and perspectives of geothermal energy studies in China: from shallow to deep systems

et al. 2018

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Classical and integrated multicomponent geothermometry at the Tengchong geothermal field, Southwestern China

Cited by 20 publications

References 10 publications

Analysis of Hydrothermal Systems Beneath Tayukeng through Long-Term Geochemical Signals of Hydrothermal Fluids in Tatun Volcano Group, Taiwan

Analysis of Hydrothermal Systems Beneath Tayukeng through Long-Term Geochemical Signals of Hydrothermal Fluids in Tatun Volcano Group, Taiwan

The Estimation of Reservoir Temperature for Thermal Springs Using the Integrated Multicomponent Geothermometry Method at Changbai Mountain, Northeastern Songliao Basin, China

Progress and perspectives of geothermal energy studies in China: from shallow to deep systems

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