Mots-clés
Argile minéral Carbonate Domaine aride Domaine semi-aride Dépression fermée Elément-trace Géochimie Propriétés du sol Sebkha Sol Tunisie Tunisie du Nord-Est Arid area Carbonate Clay mineral Closed depression Geochemistry Sebkha Semi-arid area Soil Soil properties Trace-element Tunisia Arcilla mineral Campo semiárido Campo árido Carbonato Depresión cerrada Elemento-huella Geoquímica Propiedades del suelo Sebkha SueloSoils 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
Anglais
Droits :
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)