Consulta: subjectFacets:"Mer Rouge"
Registros recuperados: 2
Data/hora: 11/06/2024 15:50:56

Influence hydrothermale dans les sédiments de fosses de la mer Rouge par l'étude de quelques éléments traces
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Pierret, Marie Claire; Clauer, Norbert; Blanc, Gerard.
The Cu, Ni, Fe, Cr and Zr concentrations were evaluated to study the influence of hydrothermal activity on the sediments of six Red-Sea deeps. Comparison between the Ni/Fe and Cu/Fe ratios supports distinction between hydrothermal and non-hydrothermal sediments, whereas anti-correlation between Zr and Cr concentrations results from hydrothermal influence. The results allow us to envisage that the sediments of the Suakin Deep did not undergo a hydrothermal activity and that this hydrothermal influence was weak in the Valdivia Deep. The sediments of Port-Soudan Deep recorded a hydrothermal activity, whereas this activity was the strongest in the Thetis and Atlantis II deeps.
Tipo: Text
Palavras-chave: Sédiment; Mer Rouge; Fosses; Hydrothermalisme; Métaux; Sediment; Red sea; Deeps; Hydrothermalism; Metals.
Ano: 2000
URL: http://archimer.ifremer.fr/doc/00323/43375/42836.pdf

Sea level variability in the central Red Sea
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Sultan, Sar; Ahmad, F; Elghribi, Nm.
Analyses of the daily means of the sea level at Jeddah and Port Sudan for the year 1991 reveal that a large proportion (60%) of the energy is concentrated in the seasonal variations. The seasonal signal is approximated as the sum of an annual and semi-annual components. The amplitudes of the annual component are 20.3 and 12.7 cm respective! y and constitute about 44% of the total variance. The amplitudes of the semi-annual cycle are 9.6 cm and 7.7 cm and explain about 10% and 16% of the variance respcctively. At Jeddah cross-spectral anal ysis between the sea-level and the wind stress components shows that the annual cycle is mainly induced by the long-shore component. In contrast no correlation exists between the sea leve! and the cross-shore wind-stress...
Tipo: Text
Palavras-chave: Niveau de la mer; Tension du vent; Analyse spectrale; Mer Rouge; Sea leve; Wind stress; Spectral analysis; Red Sea.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00096/20766/18392.pdf