Zr- Hf Fractionation During Water-Rock Interaction - Biominéralisations et environnements sédimentaires Accéder directement au contenu
Article Dans Une Revue Procedia Earth and Planetary Science Année : 2017

Zr- Hf Fractionation During Water-Rock Interaction

Résumé

Zr and Hf are two elements having same ionic charge and similar ionic size at a given coordination number. Despite the Zr/Hf ratio is considered to be quite constant in meteorites and lithospheric rocks, seawaters collected from the surface down to varying depths of several Pacific Ocean stations reveal that the Zr/Hf ratio increases by one order of magnitude. Very recent studies have shown that, in both ground waters and lake waters, the Zr/Hf ratio is either higher or lower compared to the interacting minerals displaying a large variability in the distribution of these twin elements. In this communication the possible processes responsible for such a large fractionation are discussed but further work is needed to test the validity of these interpretations. This basic problem of scientific significance needs more attention from the water-rock interaction community.

Mots clés

Fichier principal
Vignette du fichier
1-s2.0-S1878522016302132-main.pdf (183.32 Ko) Télécharger le fichier
Origine : Publication financée par une institution

Dates et versions

hal-01440534 , version 1 (19-01-2017)

Licence

Paternité - Pas d'utilisation commerciale - Pas de modification

Identifiants

Citer

Pierpaolo Zuddas, C. Inguaggiato, P. Censi, W. D’alessandro. Zr- Hf Fractionation During Water-Rock Interaction. Procedia Earth and Planetary Science, 2017, 17, pp.670 - 673. ⟨10.1016/j.proeps.2016.12.179⟩. ⟨hal-01440534⟩
661 Consultations
128 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More