Q. Al-Naqib, S. and M. Sulaiman, A. 2005. The Study of Origin and Some Characteristics of Pre-existing Rocks in Al-Qaim, West of Iraq. Rafidain Journal of Science. 16, 3 (Feb. 2005), 123–135. DOI:https://doi.org/10.33899/rjs.2005.41365.