Abstract
This study was conducted by using the chemical analysis of soluble ions data from nine ground water wells of Nineveh Provence to study their tendency for precipitation and dissolution of associated minerals by using Geo-Chemo equilibrium program Visual MinteqA2 to calculate the saturation index values for predicted associated minerals. The results of the output of geo – chemo program showed a different tendency of these water in dissolution / precipitation of salts minerals with location, also the sulfate water at Hamam Al-Alil has a high quality in these different minerals like (calcite, order and disorder dolomite, aragonite, vaterite, and gypsum). While the well waters at shykan and fadlia were less ability to precipitate only (order dolomite). The results were correlated with the geological formation at these locations , the results show that was high content of salt minerals as calcite and gypsum within fatha formation at Hamam Al-Alil, while there are increasing in clastic and carbonate minerals inconstract the salts minerals at shykan and kadia locations.
