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Etude du remplissage sédimentaire d’un système hypersalin de la Tunisie orientale au cours du Quaternaire récent : la sebkha de Moknine

Sedimentological study of sediment from an hypersaline system of oriental Tunisia in recent Quaternary: Moknine Sebkha
Raja Chairi
p. 107-117

Abstracts

Results from a detailed sedimentological study of sediments from Moknine sebkha indicate two different deposit episodes. The first is characterized by an abundance of mud and organic matter which is good preserved in clay level. The second episode is qualified by the progradation of clay and organic matter to the centre. This evolution is controlled by two important factors such as dissymmetry of basin topography and the abundance of rivers on the West.
In the past, the sebkha is widened than actual. The abundance of clay in the base of the sequence at the periphery and in intermediate zone gives evidence. Clay level is rich on smectite which is more deposit in the center of the sebkha and contains high quantity of organic matter. Organic matter fraction is dominated by autochthonous material indicated by high values of hydrogen index and n-alkanes centred on nC18 and nC22.

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References

Bibliographical reference

Raja Chairi, “Etude du remplissage sédimentaire d’un système hypersalin de la Tunisie orientale au cours du Quaternaire récent : la sebkha de Moknine”Quaternaire, vol. 16/2 | 2005, 107-117.

Electronic reference

Raja Chairi, “Etude du remplissage sédimentaire d’un système hypersalin de la Tunisie orientale au cours du Quaternaire récent : la sebkha de Moknine”Quaternaire [Online], vol. 16/2 | 2005, Online since 01 June 2008, connection on 28 March 2024. URL: http://journals.openedition.org/quaternaire/328; DOI: https://doi.org/10.4000/quaternaire.328

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About the author

Raja Chairi

Département de Géologie, Faculté des Sciences de Tunis, Université de Tunis El Manar 2092, Chairi_ra@yahoo.fr

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Copyright

The text and other elements (illustrations, imported files) are “All rights reserved”, unless otherwise stated.

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