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This study tries to evaluate the sediments of Quaternary deposits with a depth from 8 to 24 meters, and determine the lights and heavy minerals with their origin. Three boreholes; Basrah, Thi-Qar and Missan, were selected, based on the grain size analysis of samples, three types of sediment were identified: silt, sandy silt, and silty sand. The statistical size parameters were applied to determine the energy and sedimentation environment, showed that the sediments of the study area were deposited in low-energy conditions. The sorting values ranged from poorly to very poorly, while the skewness ranged from strongly fine to near symmetrical skewed and kurtosis values ranged from platy to leptokurtic. The results of heavy minerals analysis proved the very low values comparative with light ones; Opaque was predominant in all study sites, accounting for about 50% of the heavy minerals and divided to mica minerals and Chlorite, Pyroxene, Amphibole, Zircon, Epidote, and Garnet, while Kyanite, Tourmaline and Staurolite. The light minerals are dominated by carbonate and quartz with few amounts of chert, evaporates, Feldspar, rock fragments and light muscovite. The difference in the values and diversity of heavy minerals in the study area indicates the multiple sources contributing to the deposits of the Mesopotamia Plain. The sources are limited between the rivers of Tigris, Euphrates and Shatt Al-Arab and the dust-fallouts, as well as the nearest formations and the Arabian shield.

MINERALS AND SEDIMENTARY CHARACTERISTICS OF QUATERNARY SEDIMENTS OF DIFFERENT REGIONS IN SOUTHERN IRAQ