Keywords : Hydrogeochemistry

Hydrogeochemistry of Selected Wells on Both Banks of the Tigris River in Mosul Area/ Northern Iraq

Oday M. S. O. Al-Bachachi

Iraqi National Journal of Earth Science, 2014, Volume 14, Issue 1, Pages 1-18
DOI: 10.33899/earth.2014.87483

The present study included the evaluation of ground water at two areas; Gobba on the left and Hawi Al-Kaneesa on the right bank of the Tigris River at city of Mosul. Water evaluation was carried out through the comparison of the analytical dataofwater samples collected from wells at the two areas and the determination of their suitability for irrigation, as the two areas are within the utilized agricultural areas in Mosul governorate.
Chemical analysis for the major cations (Ca+2, Mg+2,Na+1, K+1) and the anions (HCO3-1, Cl-1,SO4-2) were carried out. Also, some physical and chemical properties related to water specification, like hydrogen ion Concentration (pH), electrical conductivity (EC), total hardness (TH) and total dissolved salts (TDS) were determined.
For the purpose of evaluation of water quality for irrigation, some water classifications were carried out. Results have shown that most of Hawi AL- Kaneesa well water were relatively rich in the determined cations and anions. This is attributed to the relatively high solubility of Fatha formation evaporates. These well- waters are considered to be a mixture of recent deposits and Fatha formation ground waters. Also, rain waters rinse and dissolved the outcrops of this formation in this area. There is also the effect of the sulphur springs present at or near the study area like Ain–Kibrit (sulphur spring) and other springs along the fault of Hawi AL-Kaneesa that result in increasing (SO4-2) as significantly observed.

Hydrogeochemistry of Ground Water in Wadi NiniBasin – East Algeria

Aysar M. Al-Shamma; Fadhila Aliki

Iraqi National Journal of Earth Science, 2004, Volume 4, Issue 2, Pages 40-61
DOI: 10.33899/earth.2004.37749

Wadi Nini basin is located northeast of Algeria and it is part of Qasantina upper plateau basin. The main aquifers in this basin are in Tertiary-Quaternary and in the Upper Maestrichtian formations; the late is characterized by high fractures and karstified limestones. For the purpose of detecting the quality of groundwater, groundwater samples were collected from deep and hand dug wells during the September of 1998-1999. The hydro-geochemical analysis give the concentration of the total dissolved solid in the water of the basin ranging from 100-1600 ppm. Due to different classifications applied in this study, it shows different structures of water within different parts of the basin, for it is Calcic-Bicarbonate near the recharge area, change to Calcic-Sulphic in the direction of flow, then to Sodic-Chloride near the Sabkhas (discharge area). Generally, the groundwater of Wadi Nini basin is considered to be applicable for using both in domestic and agricultural activities according to the World Standardization, except in few places where the concentrations exceeds the permissible limits.