Geochemical and textural properties of carbonate and terrigenous sediments along the Jordanian coast of the Gulf of Aqaba |
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Authors: | Saber Al-Rousan Mohammed Rasheed Fuad Al-Horani Riyad Manasrah |
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Institution: | (1) Marine Science Station, The University of Jordan & Yarmouk University, P.O. Box 195, 77110 Aqaba, Jordan |
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Abstract: | The physicochemical properties of 21 marine sediment samples were investigated, collected from five different localities along
the Jordanian coast of the Gulf of Aqaba. According to the chemical parameters, sediments were categorized into three groups:
carbonate (80% CaCO3), composed mainly of materials of calcareous skeletal structures; terrigenous (<10% CaCO3) depositional areas for land-derived materials from surrounding rocks and alluviums; and a admixture of the first two (19–37%
CaCO3). High significant linear correlations were found between organic carbon (OC) and total nitrogen (TN), indicating the occurrence
of these components in a common phase (organic matter). Despite the co-occurrence of TP in organic matter, these two elements
were negatively correlated, indicating anthropogenic sources of pollution such as phosphate exportation (hotel areas and clinker
port sites) and industrial activities (industrial complex site). The study found that variations in texture properties and
mud contents were due to differences in sediment sources, topography and their response during currents and waves. The finer,
well-sorted sediments contain lower elemental concentrations of OC, calcium carbonate and TN (excluding TP) than coarser,
poorly-sorted sediments. |
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Keywords: | Marine sediments terrigenous carbonate texture Gulf of Aqaba |
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