Geochemistry of some HP-metavolcanics from Western Alps metaophiolites

Kubovics Imre and Abdel-Karim Abdel-Aal Mohamed: Geochemistry of some HP-metavolcanics from Western Alps metaophiolites. In: Acta mineralogica-petrographica, (30). pp. 55-65. (1989)

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Abstract

Ophiolite metavolvanics from Monviso, Arc valley and Montgenévre in the Piedmont Zone of the Western Alps are geochemically investigated and compared with data obtained from oceanic crust. Belonging to the Zermatt-Saas and Combin (Monviso and Arc valley) units they are characterized by HP-facies metamorphism including eclogite-facies metabasalts and garnet-bearing glaucophanites that underwent into greenschist-facies metamorphism. Few metavolcanics (Montgenévre) are partly escaped from ocean-floor metamorphism, but they are overprinted by Alpine deformation. They show a large variation in the bulk rock geochemistry and roughly compare to MORB and a few of them show an IAT character. Their geochemical characters prevalently similar to that of oceanic ridge basalts and they show abyssal tholeiitic differentiation trend.

Item Type: Article
Journal or Publication Title: Acta mineralogica-petrographica
Date: 1989
Volume: 30
ISSN: 0365-8066
Page Range: pp. 55-65
Language: English
Publisher: University of Szeged, Department of Mineralogy, Geochemistry and Petrology
Place of Publication: Szeged
Related URLs: http://acta.bibl.u-szeged.hu/39408/
Uncontrolled Keywords: Geokémia, Kőzettan, Ásványtan, Földtan
Additional Information: Bibliogr.: p. 64-65. ; ill. ; összefoglalás angol nyelven
Subjects: 01. Natural sciences
01. Natural sciences > 01.05. Earth and related environmental sciences
Date Deposited: 2016. Oct. 17. 09:25
Last Modified: 2022. Jul. 26. 14:51
URI: http://acta.bibl.u-szeged.hu/id/eprint/24769

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