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자료유형
학술저널
저자정보
Nazem M. El-Radaideh (Yarmouk University Jordan)
저널정보
한국지질과학협의회 Geosciences Journal Geosciences Journal Vol.20 No.1
발행연도
2016.1
수록면
77 - 87 (11page)

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Surface sediments of Al-Wala Reservoir central Jordan, were evaluated to characterize trace element distribution and sources related to various physicochemical variables. Metallic micronutrient distribution is determined by grain size analysis, parent material in the catchment, and anthropogenic activities. The suitability of reservoir sediment as a source of natural additives for replacing eroded topsoil was assessed by comparing the physiochemical characteristics of bottom sediments to normal worldwide soils. Textural analysis of bottom sediments is mainly composed of very fine-grained facies (clayey-silty facies), characterized by high content of different types of clay minerals and organic matters, medium-high cation exchange capacity, and optimal pH ranges for availability of most micronutrients. Among the metallic micronutrients measured: Fe, Zn, Cd, Cu and Mn, total abundance of Zn and Cd slightly exceeded the recommended safe levels for normal soils, but these concentrations my are decline when the sediments are exposed to air. Comparing our results with natural soils, it can be concluded that clayey-silty facies sediments can be considered as a good source of non-manufactured additives, whereas coarse-grained (sandy and granule facies) sediments as a good agricultural soil.

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