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| Saidi, H.; Brahim, M.; Gueddari, M.. |
| The results of the grain-size and mineralogical analysis of the superficial sediments of the coastal zone situated between Sidi Bou Saïd and “la Goulette” show that the small funds (-2 to -10 m) are decorated by fine sands (the median Q50 is between 116,6µm and 213,5µm). Nevertheless, the beach top situated between Sidi Bou Saïd and the North pass of the Punic harbours of Salammbô is covered essentially by average sands (the median Q50 is between 170,6 µm and 408,9µm). Between the Punic ports and the fishing port of “la Goulette” , the beach top is formed by fine sands. The spatial distribution of the sands shows the existence of a fading classification of the sediments from the coast towards the wide one. This classification is carried out by the... |
| Tipo: Journal Contribution |
Palavras-chave: Golfe de Tunis; Granulométrie Grain size Sediments Coastal zone Mineralogy. |
| Ano: 2004 |
URL: http://hdl.handle.net/1834/1169 |
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| Brahim, M.; Ben Amor, R.; Gueddari, M.. |
| The results of the grain size and mineralogical analysis of the surface sediments of the Gulf of Gabes, taken with Various depths between the coast Sfax-Zarzis and the isobaths -100 m, allow to identify the origin of these sediments and to specify the factors and the phenomena, which are involved in their transport and their deposit. The mineralogical study resulted in high lighting a clear relation between the recent sedimentary stock of the gulf of Gabès and the bordering geological formations. The sediments study showed that the detritus materials are of continental origin and the sediments coming from the coastal erosion are subjected to a dynamics, which is controlled, primarily by the action of the currents (current coastal and currents tide and by... |
| Tipo: Journal Contribution |
Palavras-chave: Grain size; Sediment analysis; Sediment chemistry; Sediments; Mineralogy. |
| Ano: 2003 |
URL: http://hdl.handle.net/1834/1118 |
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| Ben Gharali, A.; Ouakad, M.; Gueddari, M.. |
| L'oued Tinja relie la garaet Ichkeul à la lagune de Bizerte laquelle communique avec la mer Méditerranée par un long goulet. Les eaux de cet oued dépendent à la fois des apports saisonniers des eaux marine et douce et présente de ce fait, des salinités très fluctuantes. L'important réseau hydrographique associé au plan d'eau de l'Ichkeul (avec un bassin versant très important d'environ 2080 km2) est sujet à de nombreux aménagements hydrauliques, notamment la construction de barrages de retenues d'eau douce. Ces derniers sont susceptibles de perturber les caractéristiques hydrologiques, sédimentologiques et géochimiques du système laguno-lacustre (lagune de Bizerte et garaet Ichkeul) et d'entamer par voie de conséquence sa diversité et sa richesse... |
| Tipo: Journal Contribution |
Palavras-chave: Environmental impact; Geochemistry; Hydrology; Quality; Sediment analysis; Species diversity. |
| Ano: 2008 |
URL: http://hdl.handle.net/1834/4270 |
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