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Geochemistry of spinel peridotite inclusions in basalts from Sardinia

Published online by Cambridge University Press:  05 July 2018

C. Dupuy ,
J. Dostal  and
J. L. Bodinier
C. Dupuy
Affiliation:
Centre Géologique et Géophysique, Université des Sciences et Techniques du Languedoc, Place E. Bataillon, 34060 Montpellier, France
J. Dostal
Affiliation:
Department of Geology, Saint Mary's University, Halifax, Nova Scotia, B3H 3C3, Canada
J. L. Bodinier
Affiliation:
Centre Géologique et Géophysique, Université des Sciences et Techniques du Languedoc, Place E. Bataillon, 34060 Montpellier, France
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Abstract

The spinel peridotite inclusions in basalts from Sardinia are upper-mantle residues affected by metasomatism which led to an enrichment particularly of U and light REE. The metasomatism took place prior to the recrystallization which produced the primary mineral assemblage of the inclusions. The compositional variations imply that the xenoliths are residual after at least two melting events.

Keywords

spinelperidotitebasaltsSardiniarare earth elements
Type
Geochemistry
Information
Mineralogical Magazine , Volume 51 , Issue 362 , October 1987 , pp. 561 - 568
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1987

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