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Soils in the semi-arid area of the El Melah Lagoon (NE Tunisia) - Variability associated with a closing evolution

Auteur(s) et Affiliation(s)

PRUDÊNCIO, M.I.
Inst. Tecnológico e Nuclear, Sacavém, Portugal
DIAS, M.I.
Inst. Tecnológico e Nuclear, Sacavém, Portugal
RUIZ, F.
Dep. Geodinámica y Paleontología, Univ., Huelva, Espagne
WAERENBORGH, J.C.
Inst. Tecnológico e Nuclear, Sacavém, Portugal
DUPLAY, J.
Centre de Géochimie de la Surface, UMR 7517 CNRS/ULP, Strasbourg, France
MARQUES, R.
Inst. Tecnológico e Nuclear, Sacavém, Portugal
FRANCO, D.
Inst. Tecnológico e Nuclear, Sacavém, Portugal
BEN AHMED, R.
Centre de Géochimie de la Surface, UMR 7517 CNRS/ULP, Strasbourg, France
GOUVEIA, M.A.
Inst. Tecnológico e Nuclear, Sacavém, Portugal
ABAD, M.
Dep. Geodinámica y Paleontología, Univ., Huelva, Espagne


Description :
Soils of the semi-arid area of the El Melah coastal lagoon (NE Tunisia), with a closing evolution dynamic, were studied aiming: (1) the chemical and mineralogical characterization of surface and subsurface layers of soil profiles from locations previously submerged and of soils developed on dunes; (2) to evaluate the dependence on the environment conditions of the geochemical patterns of the soils; and (3) to determine chemical and mineralogical variations with the emersion of the sediments resulting from the decrease in the extent of the area permanently covered by water in the lagoon. The compositional results obtained showed significant differences depending on the environment (littoral plain, old dunes and sandy spit), but soils of the different environmental zones studied do not appear to be significantly polluted as far as trace elements are concerned.


Type de document :
Article de périodique

Source :
Catena (Giessen), issn : 0341-8162, 2010, vol. 80, n°. 1, p. 9-22, nombre de pages : 14, Références bibliographiques : 1 p.

Date :
2010

Editeur :
Pays édition : Allemagne, Cremlingen-Destedt, Catena

Langue :
Anglais
Droits :
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