期刊名称：Journal of Environmental Hydrology (ältere Jahrgänge)
印刷版ISSN：1058-3912
电子版ISSN：1996-7918
出版年度：2007
卷号：15
出版社：IAEH
摘要：In the Ain Oussera plain of Algeria, most boreholes and wells discharge undifferentiated groundwaters from the complex Quaternary-Albian aquifers. Existing piezometric and hydrochemical maps do not show a clear difference between aquifer sources. This study uses temperatures and redox potential measurements to identify water from the different aquifers The analysis of temperatures allows the identification of thermal anomalies existing between various source levels within the aquifers. Redox potential measurements confirm the presence of two zones defined as shallow, cold, and oxidizing waters and deep, warmer, and reducing waters. Between these two extremes there are zones of mixing between the systems. Salinity, expressed as electrical conductivity, varies from 590 to 4260 �s/cm, and waters are dominated by magnesium ion. The hydrochemical zonation in the aquifers has been verified by isotopic measurements of tritium and oxygen l8. Adjusted carbon 14 ages were also calculated using different models.
