Ceccantini G., Figueiro A.M.G., Sondag Francis, Soubiès François. (1997). Rare earth elements and titanium in plants, soils and groundwaters in the alkaline-ultramafic complex of Salitre, MG, Brazil. In :
Prost R. (ed.). Contaminated soils. Paris : INRA, 12 p. (Colloques de l'INRA ; 85). Biogeochemistry of Trace Elements : International Conference, 3., Paris (FRA), 1995/05/15-19. ISBN 2-7380-0775-9.
Titre du document
Rare earth elements and titanium in plants, soils and groundwaters in the alkaline-ultramafic complex of Salitre, MG, Brazil
Année de publication
1997
Type de document
Partie d'ouvrage
Auteurs
Ceccantini G., Figueiro A.M.G., Sondag Francis, Soubiès François
In
Prost R. (ed.), Contaminated soils
Source
Paris : INRA, 1997,
12 p. (Colloques de l'INRA ; 85). ISBN 2-7380-0775-9
Colloque
Biogeochemistry of Trace Elements : International Conference, 3., Paris (FRA), 1995/05/15-19
The contents of Rare Earth Elements (REE) and titanium in various species of plants, in groundwaters and in soils from the ultramafic complex of Salitre, MG, Brazil, were determined. Due to the particular mineralogy of the bedrock, REE and Ti present high concentrations in the soils. The transfer factors of the REE from soil to plants were calculated, giving values ranging from 0.0001 to 0.0028, much lower than the values reported elsewhere in Brazil. Furthermore, as suggested by other authors, the levels of REE in the plants appears to be independent from the REE contents in the soils. The concentrations of the REE in the plants, normalized to chondrites contents, show patterns similar to those of the soils. The patterns obtained for the normalized REE contents in groundwaters suggest an influence of the plant root activity leading to an enrichment in heavy REE. Some plant species show an accumulation of titanium and present concentration values about three times higher than the average content in plantes cited in the literature. (Résumé d'auteur)
Plan de classement
Géochimie [064GEOCHI]
Descripteurs
GEOCHIMIE ; TERRES RARES ; TITANE ; EAU DU SOL ; SOL ; PLANTE ; DOSAGE
Description Géographique
BRESIL ; MINAS GERAIS
Localisation
Fonds IRD [F B010015618] ;
Bondy
;
Montpellier (Centre IRD)
;
Montpellier (Maison des Sciences de l'Eau)
Identifiant IRD
fdi:010015618
