The Gharb plain (Northern Morocco) benefits from a privileged geographical situation, very fertile soils, and relevant water resources. Geochemical characterisations of the groundwater and of the water-rock interaction processes are suggested. A shallow aquifer and a deep multi-layered aquifer have been distinguished. The shallow aquifer is hosted in silty clay formations, it supplies an alkaline-chloride type of water with the total dissolved solids (TDS) in the 0.7–1.8 g/l range, and the dissolved contents depend on the dissolution of sea salts, calcite, gypsum, and dolomite; salt domes leaching and cationic exchange or inverse exchange processes may occur locally, increasing the TDS up to 4 g/l. Less salty water (TDS: 0.2–0.9 g/l) comes from the multi-layered aquifer, and shows a calcium bicarbonate composition related mainly to the interaction with carbonate minerals, which prevail in the sediments. All waters are over-saturated with respect to calcite, and under-saturated with respect to gypsum.
CITATION STYLE
El Mahmouhi, N., El Wartiti, M., Azelmad, R., Sadki, R., & Berred, S. (2018). Actualization of the Qualitative State of the Water Resources in the Plain of Gharb (Downstream of Sebou - Morocco). In Sustainable Civil Infrastructures (pp. 151–159). Springer Science and Business Media B.V. https://doi.org/10.1007/978-3-319-61645-2_12
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