Elemental Enrichment in Shallow Subsurface Red Sea Coastal Sediments, Al-Shuaiba, Saudi Arabia: Natural vs. Anthropogenic Controls
Geochemical analysis of the 23 sediment samples collected from a short (0.6 m long) core retrieved from the coastal creek that was previously connecting the northern and southern Al-Shuaiba Lagoons, Red Sea, Saudi Arabia, was accomplished to assess the elemental enrichment levels and the natural and...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-08-01
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| Series: | Minerals |
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| Online Access: | https://www.mdpi.com/2075-163X/11/8/898 |
| _version_ | 1797522760517287936 |
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| author | Ibrahim M. Ghandour Mohammed H. Aljahdali |
| author_facet | Ibrahim M. Ghandour Mohammed H. Aljahdali |
| author_sort | Ibrahim M. Ghandour |
| collection | DOAJ |
| description | Geochemical analysis of the 23 sediment samples collected from a short (0.6 m long) core retrieved from the coastal creek that was previously connecting the northern and southern Al-Shuaiba Lagoons, Red Sea, Saudi Arabia, was accomplished to assess the elemental enrichment levels and the natural and anthropogenic driving forces for this enrichment. Statistical analysis and upcore variation in elemental concentrations enabled subdivision of the core formally into three units, lower, middle, and upper. The enriched elements in the lower and middle units display poor to negative correlations with the enriched elements in the upper unit. The lower unit is enriched in elements (Mo, As, U, and Re) suggesting deposition under anoxic conditions, possibly related to the Medieval Climate Anomaly. The middle unit is enriched in the carbonate-related constituents (CaCO<sub>3</sub>, Ca, and Sr). The upper unit is enriched in elements that co-vary significantly with Al suggesting increased terrigenous supply associated with the construction of the road between the two lagoons. The enrichment of elements in the lower and middle units is naturally driven, whereas the enrichment of lithogenic elements in the upper unit, though of geogenic origin, is induced after the road construction. |
| first_indexed | 2024-03-10T08:33:54Z |
| format | Article |
| id | doaj.art-22c69d2744ae423a99b813473c5a68c0 |
| institution | Directory Open Access Journal |
| issn | 2075-163X |
| language | English |
| last_indexed | 2024-03-10T08:33:54Z |
| publishDate | 2021-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Minerals |
| spelling | doaj.art-22c69d2744ae423a99b813473c5a68c02023-11-22T08:50:35ZengMDPI AGMinerals2075-163X2021-08-0111889810.3390/min11080898Elemental Enrichment in Shallow Subsurface Red Sea Coastal Sediments, Al-Shuaiba, Saudi Arabia: Natural vs. Anthropogenic ControlsIbrahim M. Ghandour0Mohammed H. Aljahdali1Marine Geology Department, Faculty of Marine Sciences, King Abdulaziz University, Jeddah 80200, Saudi ArabiaMarine Geology Department, Faculty of Marine Sciences, King Abdulaziz University, Jeddah 80200, Saudi ArabiaGeochemical analysis of the 23 sediment samples collected from a short (0.6 m long) core retrieved from the coastal creek that was previously connecting the northern and southern Al-Shuaiba Lagoons, Red Sea, Saudi Arabia, was accomplished to assess the elemental enrichment levels and the natural and anthropogenic driving forces for this enrichment. Statistical analysis and upcore variation in elemental concentrations enabled subdivision of the core formally into three units, lower, middle, and upper. The enriched elements in the lower and middle units display poor to negative correlations with the enriched elements in the upper unit. The lower unit is enriched in elements (Mo, As, U, and Re) suggesting deposition under anoxic conditions, possibly related to the Medieval Climate Anomaly. The middle unit is enriched in the carbonate-related constituents (CaCO<sub>3</sub>, Ca, and Sr). The upper unit is enriched in elements that co-vary significantly with Al suggesting increased terrigenous supply associated with the construction of the road between the two lagoons. The enrichment of elements in the lower and middle units is naturally driven, whereas the enrichment of lithogenic elements in the upper unit, though of geogenic origin, is induced after the road construction.https://www.mdpi.com/2075-163X/11/8/898Al-Shuaiba Lagoonanthropogenic vs. naturalRed Seasediment geochemistryanoxic bottom conditionsredox-sensitive elements |
| spellingShingle | Ibrahim M. Ghandour Mohammed H. Aljahdali Elemental Enrichment in Shallow Subsurface Red Sea Coastal Sediments, Al-Shuaiba, Saudi Arabia: Natural vs. Anthropogenic Controls Minerals Al-Shuaiba Lagoon anthropogenic vs. natural Red Sea sediment geochemistry anoxic bottom conditions redox-sensitive elements |
| title | Elemental Enrichment in Shallow Subsurface Red Sea Coastal Sediments, Al-Shuaiba, Saudi Arabia: Natural vs. Anthropogenic Controls |
| title_full | Elemental Enrichment in Shallow Subsurface Red Sea Coastal Sediments, Al-Shuaiba, Saudi Arabia: Natural vs. Anthropogenic Controls |
| title_fullStr | Elemental Enrichment in Shallow Subsurface Red Sea Coastal Sediments, Al-Shuaiba, Saudi Arabia: Natural vs. Anthropogenic Controls |
| title_full_unstemmed | Elemental Enrichment in Shallow Subsurface Red Sea Coastal Sediments, Al-Shuaiba, Saudi Arabia: Natural vs. Anthropogenic Controls |
| title_short | Elemental Enrichment in Shallow Subsurface Red Sea Coastal Sediments, Al-Shuaiba, Saudi Arabia: Natural vs. Anthropogenic Controls |
| title_sort | elemental enrichment in shallow subsurface red sea coastal sediments al shuaiba saudi arabia natural vs anthropogenic controls |
| topic | Al-Shuaiba Lagoon anthropogenic vs. natural Red Sea sediment geochemistry anoxic bottom conditions redox-sensitive elements |
| url | https://www.mdpi.com/2075-163X/11/8/898 |
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