Hydrogeochemistry of tunnel seepage water along the contact of zone of metasedimentary and granitic rock within the Pahang–Selangor Raw Water Transfer Tunnel Project, Malaysia

Zainal, Sharifah Farah Fariza Syed; Ismail, Mohd Nazri; Mostafa, Roslanzairi; Narita, Nobuya; Mahmood, Norzani; Ng, Soon Min

doi:10.1007/s12517-015-2260-2

Cited by 5 publications

(2 citation statements)

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“…Our results demonstrate that geothermal spring water samples with higher temperatures exhibit higher EC (>1,000 μs/cm) and TDS (>650 mg/L) values than type A water (Table 1). In general, high EC values can be caused by high concentrations of dissolved minerals in water (Zainal et al, 2016). Higher TDS values reflect a longer circulation path and residence time (Belhai et al, 2016).…”

Section: Hydrochemical Featuresmentioning

confidence: 99%

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Hydrogeochemical origin and circulation of spring waters along the Karakorum fault, Western Tibetan Plateau: Implications for interaction between hydrosphere and lithosphere

Wang

Zhou

et al. 2022

Front. Earth Sci.

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Geochemical investigation on the origin and circulation of geothermal water is crucial for better understanding the interaction between hydrosphere and lithosphere. Previous studies on the Himalayan geothermal belt mainly distributed in the central and eastern Tibetan Plateau. In this study, water samples (8 hot springs and 1 cold spring) from the Karakorum fault (KKF) zone of western Tibetan Plateau were analyzed for the hydrogeochemical characteristics and isotopic compositions. Three types of spring water along the KKF were classified on basis of ionic concentration and Sr isotopic composition: type A water (HCO3–Mg or Ca), type B water (HCO3–Na) and type C water (Cl–Na). Type A water is originated from the infiltration of meteoric water and the dissolution of silicate/evaporite. Type B water is mainly leached from the metamorphic and granitoid rocks. Type C water is formed by the dissolution of chlorides and sulphates. δD and δ18O isotopes indicate that geothermal fluid along the fault zone was mainly recharged by local precipitation. Moreover, reservoir temperatures of 144.2–208.6°C were estimated by the silica–enthalpy mixing model, and the thermal waters have a relatively deep circulation depth (≥ 7.0 km). Meanwhile, the thermal waters are characterized by extremely high Li, B, Fe and As concentrations and earthquakes frequently happened in the vicinity, suggesting that the KKF is a deep and active fault, which also indicates that the thermal fluids are strongly associated with seismicity. Therefore, thermal fluid can potentially be used as continuous monitoring sites for earthquake forecasting.

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Section: Hydrochemical Featuresmentioning

confidence: 99%

“…Higher TDS values reflect a longer circulation path and residence time (Belhai et al, 2016). Assuming that the springs belong to the same water source, geological context and thermal source, temperatures at the spring vent indicate the circulation depth, time of circulation and regional geothermal gradients (Zainal et al, 2016).…”

Section: Hydrochemical Featuresmentioning

confidence: 99%