Major, trace and rare earth elements geochemistry of geothermal waters from the Rehai high-temperature geothermal field in Tengchong of China

Wang, Mengmeng; Zhou, Xun; Liu, Yu; Xu, Hongfei; Wu, Yanqiu; Zhuo, Linyang

doi:10.1016/j.apgeochem.2020.104639

Cited by 36 publications

(11 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…e contents of SiO 2 , Sr, Li, As, and F were relatively low and constant. In comparison, high-temperature geothermal waters displayed Cl•HCO 3 -Na hydrochemical type and higher contents of SiO 2 , Sr, Li, As, and F, indicating involvements of deep magmatic compositions [23].…”

Section: Hydrogeochemical Characteristicsmentioning

confidence: 86%

“…Among them, western Yunnan possesses numerous and widespread high-and low-temperature geothermal waters, representing an outstanding natural laboratory for investigating the genetic mechanism for the geothermal system [15]. Although a wealth of studies concerns the geothermal waters in western Yunnan, the majority was concentrated on the high-temperature geothermal waters in the Rehai and Banglazhang regions [16][17][18][19][20][21][22][23][24]. In comparison, low-temperature geothermal waters in adjacent Mangbang-Longling areas have been scarcely analyzed.…”

Section: Introductionmentioning

confidence: 99%

“…Low-temperature geothermal waters and cold spring are from this study. High-temperature geothermal waters are from[23].…”

mentioning

confidence: 99%

See 2 more Smart Citations

Hydrogeochemical Characteristics and Formation of Low-Temperature Geothermal Waters in Mangbang-Longling Area of Western Yunnan, China

Chang

Liangwen

et al. 2021

Journal of Chemistry

View full text Add to dashboard Cite

Numerous low-temperature geothermal waters are distributed extensively in Mangbang-Longling of western Yunnan in China, whose formation mechanism has not been completely investigated yet. This study focused on the hydrogeochemical evolution, reservoir temperature, and recharge origin of geothermal waters using hydrogeochemical and deuterium-oxygen (D-O) isotopic studies. The low-temperature geothermal waters were characterized by HCO3-Na type, while shallow cold spring was of the hydrochemical type of HCO3-Ca. The hydrogeochemical characteristics of low-temperature geothermal waters were mainly determined by the dissolution of silicate minerals based on the geological condition and correlations of major and minor ions. The reservoir temperatures of low-temperature geothermal waters ranged from 111°C to 126°C estimated by silica geothermometry and the silicon-enthalpy graphic method. Low-temperature geothermal waters circulated at the largest depth of 1794–2077 m where deep high-temperature geothermal waters were involved. The data points of δD and δ18O of the hot spring water samples in the study area show a linear right-up trend, indicating the δ18O reaction between the water and rock and a possible mixture of magmatic water from below. The low-temperature thermal waters were recharged by meteoric water at the elevation of 2362–3653 m calculated by δD values. Upwelling by heating energy, low-temperature geothermal waters were exposed as geothermal springs in the fault and fracture intersection and mixed by up to 72% shallow cold waters at surface. Based on acquired data, a conceptual model of the low-temperature geothermal waters in the Mangbang-Longling area was proposed for future exploitation.

show abstract

Section: Hydrogeochemical Characteristicsmentioning

confidence: 86%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Hydrogeochemical Characteristics and Formation of Low-Temperature Geothermal Waters in Mangbang-Longling Area of Western Yunnan, China

Chang

Liangwen

et al. 2021

Journal of Chemistry

View full text Add to dashboard Cite

show abstract

“…As the meteoric water descended into the subsurface, they came into contact with host rocks, heated up by heat transfer from the shallow magma chamber (e.g., Ba, Su, & Li, 2018; Zhang et al, 2008), and then rose to the surface again through different faults and fissures to form geothermal springs (Figure 8). The dissolved solutes in the spring waters may originate from water‐rock interactions and/or magma degassing (Du et al, 2005; Li, 1992; Wang et al, 2020; Xiao et al, 2017; Zhang et al, 2008, 2016), and U in the spring water may come from leaching of U‐rich reservoir rocks (e.g., granite) by meteoric water and/or circulated geothermal water. In this study, the active fault structures act as passage for migration of the geothermal fluids to the surface, and both hot spring pools including Zhenzhu Spring and Dagunguo are distributed along the central Sulfur Pond–Cucumber Gully Fault (Figure 1c).…”

Section: Discussionmentioning

confidence: 99%

Uranium enrichment associated with geothermal alteration: An example from Rehai, Tengchong volcanic area of China

2022

Geological Journal

View full text Add to dashboard Cite

For the continental rift‐related geothermal system, the hydrothermal alteration zones are rarely studied for uranium exploration. High uranium concentrations (up to 36 ppm) are shown in the altered sandstones at the Rehai geothermal field (RHGF) in Tengchong, China. To demonstrate the uranium enrichment mechanism, this study comparatively examines the trace element (uranium in particular) and rare earth element (REE + Y) concentrations of hot spring water, spring deposits (sinters and sulphates), and altered host sandstones from the RHGF of the Tengchong volcanic area. Along the central north‐south trending fault at Rehai, sinters and sulphates are precipitated from hot spring water, and the Neogene sandstones have been altered by hydrothermal fluids into zones formed of various clay minerals. The δD and δ18O values for the hot spring water indicate that the geothermal water originates from meteoric water. The spring water and hot spring deposits have identical REE distribution patterns which are featured with heavy REE (HREE) enrichment and negative Eu anomalies. Among the hot spring deposits, the yellowish earthy aggregates (tamarugite) deposited at the acidic Zhenzhu Spring have the maximum U concentration (27 ppm). The altered sandstones at Rehai, however, display the highest U concentrations (14–36 ppm). The U enrichment in the hot spring deposits and altered host rocks at the Rehai geothermal field is probably related to the multiple cycles of uranium leaching from granites, transportation upward along fault structures by geothermal water, decompression, and fixation in the hot spring deposits and/or alteration products. The results indicate that alteration zones associated with geothermal systems are also potential targets for uranium exploration.

show abstract

“…Rare earth elements Ce and Eu in groundwater are sensitive to the redox environment. Groundwater environments different in redox state often show positive or negative anomalies of Eu and Ce normalized against North American Shale Composite (NASC) [28][29][30], i.e., the concentration of Eu or Ce in the sample is higher or lower than that in NASC (Eu* or Ce*), respectively. Generally, Eu/Eu* < 1 or Ce/Ce* > 1 indicates an oxidizing environment, while Eu/Eu* > 1 or Ce/Ce* < 1 represents a reducing environment [31].…”

Section: Characteristics Of Geothermal Reservoir Environmentmentioning

confidence: 99%

Microbial Community Composition in Thermal Waters from the Lindian Geothermal Field (Songliao Basin, North-Eastern China)

Yang

Zhou

et al. 2022

Water

View full text Add to dashboard Cite

Geothermal systems represent discrete and relatively homogenous habitats for extremophiles; investigation into the microbial community is key to revealing the geochemical environment and the geochemical evolution of fluids in geothermal reservoirs. The reservoir of the Lindian geothermal field in Northeast China, is highly reducing and rich in methane, but the pathways of methane generation and the related microbial community structure are still unclear. In this research, five thermal water samples were collected and tested, and the microbial community structure and diversity were analyzed. The results show that in the sandstone reservoir belonging to the low-temperature (reservoir temperature < 90°C) brackish water (total dissolved solids concentration between 1000 and 10,000 mg/L) environment, the richness of the microbial community is relatively high. The microbial community structure is different from other geothermal systems reported but similar to that of oilfields, which may be related to the highly reducing geochemical environment with abundant organic matter. According to the analysis of archaeal function, the biogas production in the Lindian geothermal field is dominated by hydrogen nutrition type methane production, while the H2 reducing methylamine type methane production is secondary, and results of Pearson correlation show that the archaeal communities are more strongly correlated to physicochemical factors than the bacterial communities.

show abstract

Major, trace and rare earth elements geochemistry of geothermal waters from the Rehai high-temperature geothermal field in Tengchong of China

Cited by 36 publications

References 43 publications

Hydrogeochemical Characteristics and Formation of Low-Temperature Geothermal Waters in Mangbang-Longling Area of Western Yunnan, China

Hydrogeochemical Characteristics and Formation of Low-Temperature Geothermal Waters in Mangbang-Longling Area of Western Yunnan, China

Uranium enrichment associated with geothermal alteration: An example from Rehai, Tengchong volcanic area of China

Microbial Community Composition in Thermal Waters from the Lindian Geothermal Field (Songliao Basin, North-Eastern China)

Contact Info

Product

Resources

About