Sedimentological and Geochemical Study of Foundation Zone Sediment at Baiji City, North Iraq
Keywords:Baiji City, Sedimentological Properties, Geochemical Properties, Foundation Zone.
The study includes grain size analysis, clay minerals, selected heavy metals, total dissolved solids and chemical properties. The grain size analyses of (78) samples indicate that the upper layers of the floodplain are fine where the lower layers are coarser. The identification of abundance clay minerals are; Kaolinite, Montmorilonite, Illite, Chlorite and Palygorskite. The (pH) of the sediments ranged (7.07–7.33) with average (7.22), the values of (EC) ranged (1.71-6.42) with average (3.45) and the variation may be due to the variation of climate conditions, while the sulfates SO3 between (0.256% –8.985%) with average (1.70), and that may due to presence of primary or secondary gypsum. The (T.S.S) ranged between (0.490%–12.550%) with average (3.42) and organic content range between (0.342%–3.272%) with average (1.55).
The concentrations of Co, Zn, Sr, Ni, Pb, and Cd in (ppm), indicate that Co, Zn, and Ni elements are higher than the standards in the earth crust while the others within the limits of the earth crust or less than that.
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