Distribution and Phase Association of Some Major and Trace Elements in the Arabian Gulf Sediments

Basaham, Ali S.; Elsayed, Mk

doi:10.1006/ecss.1997.0278

Cited by 38 publications

(17 citation statements)

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“…As a consequence, it affects the geochemical behavior of trace metal in the aquatic environment. The coupling between the cycles of TOC and trace metals is ultimately reflected in the chemical composition of marine sediments (Basaham and El-Sayed, 1998;Fang and Hong, 1999;Lin et al, 2002).…”

Section: Spatial Distributionmentioning

confidence: 99%

Distribution and contamination of trace metals in surface sediments of the East China Sea

Fang

Feng

et al. 2009

Marine Environmental Research

128

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Section: Spatial Distributionmentioning

confidence: 99%

Distribution and contamination of trace metals in surface sediments of the East China Sea

Fang

Feng

et al. 2009

Marine Environmental Research

128

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“…The concentration of heavy metals in sediments can be influenced by variation in their texture, composition, reduction/ oxidation reactions, adsorption/ desorption, and physical transport or sorting in addition to anthropogenic metal input 1,2 . Sediment represents the main sink for pollutants in coastal ecosystems that are impacted by anthropogenic activities.…”

Section: Introductionmentioning

confidence: 99%

Distribution of Heavy Metal Concentrations in Surface Sediments in Dubai Creeks, United Arab Emirates

Howari

2005

Annali di Chimica

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Dubai is developing rapidly and many developmental activities are concentrated around its Creek. The present study reports the lateral distribution of heavy metals and compares it with local historical record of heavy metal concentrations. For this purpose surface sediment samples were collected and analyzed for metal contents, total organic carbon content (TOC), mineralogy and grain size. The percentages of the different grain size fraction of the collected sediments were as follow 65% for sand size, 15% for silt size fraction, and the rest accounted for clay size fraction. The microscopic analyses indicate that the sediment composed mainly from carbonate and quartz with traces of rock fragments. Such mineral composition is not believed to be a potential source of heavy metal. The study found that the average recorded heavy metal concentrations in the collected sediment samples were 87, 96, 127, 38.5, and 279 ppm for Cr, Cu, Ni, Pb, and Zn, respectively. Those values were slightly higher than metal concentrations recoded in 2001 with 1.22 (Cr), 2.5 (Cu), 2.87 (Ni), 0.69 (Pb), and 2.1 (Zn) folds. However, in 2001 and 2003 the measured metal contents, along the creek, were lower than those of the average earth crust. Along the Creek most metals recorded the highest concentrations in the upper reach of the Creek. The distribution of the measured heavy metals was not affected significantly with the TOC values. The present study also documented obvious related point sources of pollution.

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“…The residue was then dried, and the weight loss was considered equivalent to the calcium carbonate content (CaCO 3 ) and expressed as percentage of the total weight of the sample. This method was used in marine sediments to dissolve calcium carbonate minerals (aragonite and calcite) without affecting the dolomite (Basaham and El Sayed 1998). Organic carbon content (OC) was determined, in the bulk powdered samples, using wet dichromate-sulphuric acid oxidation method modified from the method described by Le Core (1983).…”

Section: Methodsmentioning

confidence: 99%

“…This method is based on the exothermic heating and oxidation of organic matter with 1 N potassium dichromate acidified with concentrated sulphuric acid, followed by titration with 0.1 N ferrous ammonium sulphate in the presence of ferroine as an indicator. Concentrations of major and trace elements were determined after the complete digestion of bulk powdered sediment in hot nitric acid/hydrofluoric acid mixture (Basaham and El Sayed 1998). Analyses of Al, Ca, Mg, Fe, Ti, Cr, V, Sr and Ba were carried out using inductively coupled plasma atomic emission spectrophotometer (Perkin Elmer, 400) while Mn, Cu, Ni, Co and Zn were measured using atomic absorption spectrophotometer (Varian, SpectrAA 250 plus).…”

Section: Methodsmentioning

confidence: 99%

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Geochemistry of Jizan shelf sediments, southern Red Sea coast of Saudi Arabia

Basaham

2009

Arab J Geosci

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Surface sediments from the Jizan shelf, southern Red Sea, were analysed for grain size and mineralogical and elemental composition in order to establish their geochemical characteristics. Texturally, sediments are classified into sand and mud; the latter dominates the shelf. Grain size variability and mineralogical assemblages present in the sediments largely control the abundance and distribution of CaCO 3 , organic carbon content (OC) and the major and trace elements. Sand sediments are composed of carbonate material of marine origin and contain high concentrations of Ca, Mg and Sr. Mud sediments are relatively rich in OC and are characterised by high concentrations of Al, Fe, Ti, Mn, Cu, Cr, Co, Ni, V and Ba. Unlike the sand, Mg concentration in the mud sediments seems to be controlled by stronger contribution from non-carbonate material. Factor analysis is applied to identify the variables accounting for most of the variance in the mud sediment samples. Three factors are found to describe about 78% of the variance. The first factor which accounts for 41% of the total variance is the Fe and Mn oxides that reach the area through episodic flooding. The second and third factors are the mud (22%) and the mineralogy (15%) of the sediments, respectively.

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Distribution and Phase Association of Some Major and Trace Elements in the Arabian Gulf Sediments

Cited by 38 publications

References 0 publications

Distribution and contamination of trace metals in surface sediments of the East China Sea

Distribution and contamination of trace metals in surface sediments of the East China Sea

Distribution of Heavy Metal Concentrations in Surface Sediments in Dubai Creeks, United Arab Emirates

Geochemistry of Jizan shelf sediments, southern Red Sea coast of Saudi Arabia

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