Assessment the ability of water with different ionic strength to dissolve and precipitate carbonate minerals according to omega(Ω) and saturation index (SI)

Abstract The study included five locations in Kurdistan Region, Iraq, represented by the soils of Zawita, Zakho, Dukan, Smaquli and Aqrah, order to know solubility precipitation carbonate minerals based on values omega (Ω) saturation index (SI) using water different ionic strength (chloride water, sulfur Tigris river water).the results showed that dolomite mineral was more precipitated term (9.38 * 10 8 ) (8.97) case chloride while magnesite soluble where value was)0.01) (-1.85), then when same behavior appeared for (dolomite) (SI = 9.08) -0.94). applies River. As a general conclusion, presence compared with River water.