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Document Type |
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Article In Journal |
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Document Title |
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Distribution and Partitioning of Heavy Metals in Subtidal Sediments of the Arabian Gulf Coast of Saudi Arabia توزيع وتقسيم العناصر الثقيلة في رواسب منطقة أدنى المد لساحل الخليج العربي، المملكة العربية السعودية |
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Document Language |
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English |
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Abstract |
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The surficial sediments of the Arabian Gulf coast of Saudi Arabia are a mixture consisting mainly of calcareous material mostly of marine origin and land-derived terrigenous component with high OC (average 2.1% ±0.6).
Chemical composition and the partitioning of Fe, Mn, Cu, Zn, Ni, Cr, V and Ba in operationally defined as non-residual (i.e. 1M HCl leachable) and residual fractions were determined in the <63 µm fraction of the subtidal sediments. Concentrations of metals varied widely, with no evidence for total and non-residual concentrations enrichment above the background levels in the Gulf sediments.
Partitioning results showed that Fe, Cr and Ba are mainly associated with the residual component, where about 80% of their concentrations are held immobile in this fraction. For Mn, Cu, Zn, Ni and V approximately between 35 and 55 % of their concentrations are associated with the mobile non-residual fraction. Fe-Mn oxyhdroxide appears to be the main host phase for the non-residual fraction of these metals. On the other hand, carbonate materials dilute and mask the role of the major host of these metals in the sediments. |
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ISSN |
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1012-8832 |
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Journal Name |
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Earth Sciences Journal |
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Volume |
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21 |
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Issue Number |
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1 |
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Publishing Year |
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1431 AH
2010 AD |
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Article Type |
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Article |
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Added Date |
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Tuesday, March 23, 2010 |
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Researchers
| علي سعيد بسحم | Basaham, Ali S. | Researcher | | abasaham@kau.edu.sa |
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