<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Boudjema,  Abderrezak</style></author><author><style face="normal" font="default" size="100%">Guettaia, Sabrine</style></author><author><style face="normal" font="default" size="100%">Brinis, Nafaa</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">STATISTICAL AND HYDROCHEMICAL CLASSIFICATION OF UNDERGROUND WATERS IN A MULTI-LAYER AQUIFER SYSTEM IN AN ARID ZONE :APPLICATION TO CHOTT EL GHARBI BASIN (EXTREME WEST OF ALGERIA)</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Fundamental and Applied Sciences</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2019</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://www.researchgate.net/profile/Nafaa-Brinis-2/publication/344543059_Statistical_and_hydrochemical_classification_of_underground_waters_in_a_multi-layer_aquifer_system_in_an_arid_zone_application_to_chott_el_gharbi_basin_extreme_west_of_algeria/links</style></url></web-urls></urls><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p style=&quot;text-align: justify;&quot;&gt;
	The studied area, so called Chott El Gharbi shelters a multilayer aquifer system. The hydro-chemical tool shows that the results of the groundwater analyzes of the aquifer system of the Chott El Gharbi region revealed that they are sulphated-calcium and magnesian. Water infiltrated at the Bajo-Bathonian and Mio-Plio-Quaternary carbonate formations is enriched with HCO3- and SiO2 along its underground route. Also, the presence of a Triassic evaporitic formation or the Cenomano- Turonian argilo-gypsum formation enriches these waters with SO4 2- , Cl- , K+ , Mg2+, Na+ and Ca2+ . Thermodynamics has shown that these waters are under saturated evaporitic elements, which gives them a greater power of dissolution than that of carbonates which are in equilibrium or sometimes even supersaturated and tend to precipitate.
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