Origin and evolution of formation water in North China Plain based on hydrochemistry and stable isotopes (2H, 18O, 37Cl and 81Br)

Chen, Liuzhu; Ma, Teng; Du, Yao; Yang, Jie; Liu, Ling; Shan, Huimei; Liu, Cunfu; Cai, Huayang

doi:10.1016/j.gexplo.2014.07.006

Cited by 31 publications

(13 citation statements)

References 35 publications

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“…The evolution of groundwater salinity and impacts of saline water on groundwater flow were not considered in this study, due to complex origin and processes (Chen and Xu, 1986;Liu et al, 1987;Zhang and Payne, 1987;Li et al, 2012;Chen et al, 2014). The TDS concentration of the saline water can be up to 30 g/L.…”

Section: Future Studymentioning

confidence: 99%

Revised conceptualization of the North China Basin groundwater flow system: Groundwater age, heat and flow simulations

Cao

Han

Currell

et al. 2016

Journal of Asian Earth Sciences

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a b s t r a c tGroundwater flow in deep sedimentary basins results from complex evolution processes on geological timescales. Groundwater flow systems conceptualized according to topography and/or groundwater table configuration generally assume a near-equilibrium state with the modern landscape. However, the time to reach such a steady state, and more generally the timescales of groundwater flow system evolution are key considerations for large sedimentary basins. This is true in the North China Basin (NCB), which has been studied for many years due to its importance as a groundwater supply. Despite many years of study, there remain contradictions between the generally accepted conceptual model of regional flow, and environmental tracer data. We seek to reconcile these contractions by conducting simulations of groundwater flow, age and heat transport in a three dimensional model, using an alternative conceptual model, based on geological, thermal, isotope and historical data. We infer flow patterns under modern hydraulic conditions using this new model and present the theoretical maximum groundwater ages under such a flow regime. The model results show that in contrast to previously accepted conceptualizations, most groundwater is discharged in the vicinity of the break-in-slope of topography at the boundary between the piedmont and central plain. Groundwater discharge to the ocean is in contrast small, and in general there are low rates of active flow in the eastern parts of the basin below the central and coastal plain. This conceptualization is more compatible with geochemical and geothermal data than the previous model. Simulated maximum groundwater ages of $1 Myrs below the central and coastal plain indicate that residual groundwater may be retained in the deep parts of the basin since being recharged during the last glacial period or earlier. The groundwater flow system has therefore probably not reached a new equilibrium state with modern-day hydraulic conditions. The previous hypothesis that regional groundwater flow from the piedmont groundwater recharge zone predominantly discharges at the coastline may therefore be false. A more reliable alternative might be to conceptualize deep groundwater below the coastal plains a hydrodynamically stagnant zone, responding gradually to landscape and hydrological change on geologic timescales. This study brings a new and original understanding of the groundwater flow system in an important regional basin, in the context of its geometry and evolution over geological timescales. There are important implications for the sustainability of the ongoing high rates of groundwater extraction in the NCB.

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Section: Future Studymentioning

confidence: 99%

Revised conceptualization of the North China Basin groundwater flow system: Groundwater age, heat and flow simulations

Cao

Han

Currell

et al. 2016

Journal of Asian Earth Sciences

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“…Stable chlorine isotopes have been successfully applied to trace origin and evolution of groundwater, as well as sources and fate of dissolved constituents in groundwater (Chen et al, 2014;Li et al, 2012;Liu et al, 2008;Stewart and Spivack, 2004;Zhang et al, 2007). Various Cl À sources such as sea salts, Cl-bearing minerals, atmospheric deposition, and Cl-containing compounds could possess different isotopic composition of chloride (Cincinelli et al, 2012;Eggenkamp, 2014;Kaufmann et al, 1984;Sturchio et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Application of hydrochemistry and stable isotopes (δ34S, δ18O and δ37Cl) to trace natural and anthropogenic influences on the quality of groundwater in the piedmont region, Shijiazhuang, China

Zhou

Zhang

Zhou

et al. 2016

Applied Geochemistry

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“…Since Eggenkamp and Coleman (2000) first reported bromine stable isotopic compositions in natural waters, bromine isotopic compositions of various waters have been researched (Shouakar-Stash et al, 2007a,b;Frape et al, 2007;Stotler et al, 2010;Boschetti et al, 2011;Gwynne et al, 2013;Chen et al, 2014), such as formation water, brine and oil field water. The existing overall range of bromine isotope is up to 4.85‰ (from À1.5‰ to +3.35‰) in hydrosphere.…”

Section: Introductionmentioning

confidence: 99%

Genesis of salinized groundwater in Quaternary aquifer system of coastal plain, Laizhou Bay, China: Geochemical evidences, especially from bromine stable isotope

Origin and evolution of formation water in North China Plain based on hydrochemistry and stable isotopes (2H, 18O, 37Cl and 81Br)

Cited by 31 publications

References 35 publications

Revised conceptualization of the North China Basin groundwater flow system: Groundwater age, heat and flow simulations

Revised conceptualization of the North China Basin groundwater flow system: Groundwater age, heat and flow simulations

Application of hydrochemistry and stable isotopes (δ34S, δ18O and δ37Cl) to trace natural and anthropogenic influences on the quality of groundwater in the piedmont region, Shijiazhuang, China

Genesis of salinized groundwater in Quaternary aquifer system of coastal plain, Laizhou Bay, China: Geochemical evidences, especially from bromine stable isotope

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