Evaluation of groundwater hydrochemical characteristics and mixing behavior in the Daying and Qicun geothermal systems, Xinzhou Basin

Han, Dongmei; Liang, Xing; Jin, Menggui; Currell, Matthew; Song, Xinshan; Liu, C.M.

doi:10.1016/j.jvolgeores.2009.10.011

Cited by 115 publications

(40 citation statements)

References 27 publications

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“…Strong positive correlations are observed in the EC vs. Cl (R-value of 0.9) and T vs. Cl (R-value of 0.79) plots (Figure 4a,b), implying the mixing of thermal and mineral water. Also, good correlations exist between Na and Cl (R = 0.88) and between K and Cl (R = 0.7) (Figure 4c,d), suggesting the progressive reaction of water with feldspar in the geothermal system, and the ion contents are considered as independent indicators of the residence time [19]. Thus, the residence time of the samples increased from Group III to Group I, Group II and Group IV.…”

Section: Hydrochemical Characteristicsmentioning

confidence: 77%

“…The HCO3/Cl ratios in the thermal water were higher than those in the cold water, indicating mixing between ascending thermal water and shallow cold water [10] as well as a shorter circulation path and faster groundwater cycle [19]. …”

Section: Source Of Rechargementioning

confidence: 93%

“…The SO 4 /Cl ratios were lower in the thermal water than in the cold water, which was related to the loss of S through the precipitation of sulfides or sulfates [20]. The HCO 3 /Cl ratios in the thermal water were higher than those in the cold water, indicating mixing between ascending thermal water and shallow cold water [10] as well as a shorter circulation path and faster groundwater cycle [19]. …”

Section: Hydrochemical Characteristicsmentioning

confidence: 94%

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Hydrogeochemistry and Genesis Analysis of Thermal and Mineral Springs in Arxan, Northeastern China

Zhang

Cui

et al. 2017

Water

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Abstract:In this work, the hydrogeochemistry and environmental isotopic compositions of thermal and mineral springs in Arxan, northeastern China, were used to assess the genesis of the thermal system hosted by deep-seated faults. The reservoir temperature was calculated using the mineral saturation index and geothermometers. According to isotopic analysis, the spring water was of meteoric origin. Sixteen springs in the Arxan geothermal system with outlet temperatures ranging from 10.9 to 41.0 • C were investigated. The water samples can be classified into four groups by using a Piper diagram. The aquifer in which the Group I and Group III samples were obtained was a shallow cold aquifer of the Jurassic system, which is related to the local groundwater system and contains HCO 3 -Ca·Na groundwater. The Group II and Group IV samples were recharged by deeply circulating meteoric water with HCO 3 -Na and HCO 3 ·SO 4 -Na·Ca groundwater, respectively. The springs rise from the deep basement faults. The estimated thermal reservoir temperature is 50.9-68.8 • C, and the proportion of shallow cold water ranges from 54% to 87%. A conceptual flow model based on hydrogeochemical results and hydrogeological features is given to describe the geothermal system of the Arxan springs.

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Section: Hydrochemical Characteristicsmentioning

confidence: 77%

Section: Source Of Rechargementioning

confidence: 93%

Section: Hydrochemical Characteristicsmentioning

confidence: 94%

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Hydrogeochemistry and Genesis Analysis of Thermal and Mineral Springs in Arxan, Northeastern China

Zhang

Cui

et al. 2017

Water

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“…This method has been discussed and applied in similar environments (e.g., Han et al, 2010) and assumes that extracted groundwater is a mix of two end members (thermal and non-thermal) and that the Cl ion behaves conservatively, which means that it does not participate in any chemical reactions, even at high temperatures.…”

Section: Techniques Of Analysismentioning

confidence: 99%

Groundwater flow processes and mixing in active volcanic systems: the case of Guadalajara (Mexico)

Hernández-Antonio

Mahlknecht

Tamez-Meléndez

et al. 2015

Hydrol. Earth Syst. Sci.

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Abstract. Groundwater chemistry and isotopic data from 40 production wells in the Atemajac and Toluquilla valleys, located in and around the Guadalajara metropolitan area, were determined to develop a conceptual model of groundwater flow processes and mixing. Stable water isotopes (δ 2 H, δ 18 O) were used to trace hydrological processes and tritium ( 3 H) to evaluate the relative contribution of modern water in samples. Multivariate analysis including cluster analysis and principal component analysis were used to elucidate distribution patterns of constituents and factors controlling groundwater chemistry. Based on this analysis, groundwater was classified into four groups: cold groundwater, hydrothermal groundwater, polluted groundwater and mixed groundwater. Cold groundwater is characterized by low temperature, salinity, and Cl and Na concentrations and is predominantly of Na-HCO 3 -type. It originates as recharge at "La Primavera" caldera and is found predominantly in wells in the upper Atemajac Valley. Hydrothermal groundwater is characterized by high salinity, temperature, Cl, Na and HCO 3 , and the presence of minor elements such as Li, Mn and F. It is a mixed-HCO 3 type found in wells from Toluquilla Valley and represents regional flow circulation through basaltic and andesitic rocks. Polluted groundwater is characterized by elevated nitrate and sulfate concentrations and is usually derived from urban water cycling and subordinately from agricultural return flow. Mixed groundwaters between cold and hydrothermal components are predominantly found in the lower Atemajac Valley. Twenty-seven groundwater samples contain at least a small fraction of modern water. The application of a multivariate mixing model allowed the mixing proportions of hydrothermal fluids, polluted waters and cold groundwater in sampled water to be evaluated. This study will help local water authorities to identify and dimension groundwater contamination, and act accordingly. It may be broadly applicable to other active volcanic systems on Earth.

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“…Isotopic tracers can provide data and information on the origin of runoff processes and components [1][2][3][4][5][6][7]. It can be used to study the water cycle and origin of atmospheric condensates [8][9][10][11][12][13]. In addition, stable isotopes have been used to identify runoff pathways, contribution of runoff component and residence times [14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Temporal and Spatial Variations of Hydrological Processes on the Landscape Zone Scale in an Alpine Cold Region (Mafengou River Basin, China): An Update

Yang

2017

Water

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This study investigates precipitation, snow, groundwater, glaciers and frozen soil in different landscape zones using isotopic and hydrogeochemical tracers. The aim of this study is to identify temporal and spatial variations, as well as hydrological processes in the alpine cold region. The results show that there was no significant difference in water chemical characteristics of various waterbodies, and no obvious temporal variation, but exhibited spatial variation. In the wet season, various waterbodies are enriched in oxygen δ 18 O and deuterium δD due to a temperature effect. Precipitation and the temperature decrease during the dry season, which cannot easily be affected by secondary evaporation. The d-excess (deuterium excess) of various waterbodies was greater than 10‰. There are no altitude effects during wet and dry seasons because the recharged water resources are different in the wet and dry seasons. It is influenced by the freezing-thawing process of glacier snow and frozen soil. The river water is recharged by thawed frozen soil water and precipitation in the wet season, but glacier snow meltwater with negative δ 18 O and δD is less (14-18%). In the dry season, glacier snow meltwater and groundwater are the dominant source of the river water, and thawed frozen soil water is less (10-15%).

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Evaluation of groundwater hydrochemical characteristics and mixing behavior in the Daying and Qicun geothermal systems, Xinzhou Basin

Cited by 115 publications

References 27 publications

Hydrogeochemistry and Genesis Analysis of Thermal and Mineral Springs in Arxan, Northeastern China

Hydrogeochemistry and Genesis Analysis of Thermal and Mineral Springs in Arxan, Northeastern China

Groundwater flow processes and mixing in active volcanic systems: the case of Guadalajara (Mexico)

Temporal and Spatial Variations of Hydrological Processes on the Landscape Zone Scale in an Alpine Cold Region (Mafengou River Basin, China): An Update

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