Skip to Main Content
Book Chapter

Characterization of the metasomatic agent in mantle xenoliths from Devès, Massif Central (France) using coupled in situ trace-element and O, Sr and Nd isotopic compositions

By
S. Touron
S. Touron
GEMOC National Key Centre, Department of Earth and Planetary Sciences, Macquarie University, North Ryde, NSW 2109, AustraliaDépartement de Géologie–Pétrologie–Géochimie, Laboratoire Transferts Lithosphériques, UMR 6524, Université Jean Monnet, 23 Rue du Docteur Paul Michelon, Saint-Etienne, 42023, FrancePresent address: LRMH—Château de Champs, 29 Rue de Paris, Champs sur Marne, 77420, France (e.mail: stephanie.touron@culture.gouv.fr)
Search for other works by this author on:
C. Renac
C. Renac
Département de Géologie–Pétrologie–Géochimie, Laboratoire Transferts Lithosphériques, UMR 6524, Université Jean Monnet, 23 Rue du Docteur Paul Michelon, Saint-Etienne, 42023, France
Search for other works by this author on:
S. Y. O'Reilly
S. Y. O'Reilly
GEMOC National Key Centre, Department of Earth and Planetary Sciences, Macquarie University, North Ryde, NSW 2109, Australia
Search for other works by this author on:
J.-Y. Cottin
J.-Y. Cottin
Département de Géologie–Pétrologie–Géochimie, Laboratoire Transferts Lithosphériques, UMR 6524, Université Jean Monnet, 23 Rue du Docteur Paul Michelon, Saint-Etienne, 42023, France
Search for other works by this author on:
W. L. Griffin
W. L. Griffin
GEMOC National Key Centre, Department of Earth and Planetary Sciences, Macquarie University, North Ryde, NSW 2109, Australia
Search for other works by this author on:
Published:
January 01, 2008

Abstract

Spinel lherzolites and harzburgites from Mont-Briançon and Marais de Limagne in the Devès volcanic district display coarse-grained to porphyroclastic microstructures and the modal content of volatile-bearing phases increases with the degree of deformation. Clinopyroxene and/or spinel are partly or totally reacted to amphibole. The coupled interpretations of trace-element, rare earth element (REE) and O–Sr–Nd data for clinopyroxene and amphibole indicate that the metasomatized mantle beneath Devès is a mixture of depleted and enriched mantle associated with an alkaline, high field strength element poor, and light rare earth element, U- and Th-rich carbonate-rich silicate fluid–melt metasomatic agent. Oxygen isotope and REE data for clinopyroxene–amphibole pairs indicate a (La/Yb)N enrichment related to an increasing metasomatic agent/rock ratio.

You do not currently have access to this article.
Don't already have an account? Register

Figures & Tables

Contents

Geological Society, London, Special Publications

Metasomatism in Oceanic and Continental Lithospheric Mantle

M. Coltorti
M. Coltorti
Università degli Studi di Ferrara, Italy
Search for other works by this author on:
M. Grégoire
M. Grégoire
Université Toulouse III, France
Search for other works by this author on:
Geological Society of London
Volume
293
ISBN electronic:
9781862395411
Publication date:
January 01, 2008

GeoRef

References

Related

A comprehensive resource of eBooks for researchers in the Earth Sciences

This Feature Is Available To Subscribers Only

Sign In or Create an Account

This PDF is available to Subscribers Only

View Article Abstract & Purchase Options

For full access to this pdf, sign in to an existing account, or purchase an annual subscription.

Subscribe Now