Rare earth element content in the Szentbékkála series of peridotite inclusions

Bérczi Szaniszló and Bérczi János: Rare earth element content in the Szentbékkála series of peridotite inclusions. In: Acta mineralogica-petrographica, (28). pp. 61-74. (1986)

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Abstract

The genetic relations of four nonfrequent xenolith inclusion groups (dunite, layered lherzolite, websteriteandspinel-pyroxenite) to the hypothetical mantle sourcespinel-lherzolite(themostfrequent inclusion) and to the host alkali basalts have been investigated. The concentrations of rare-earth elements (REE) in the basalts, in the peridotite inclusions and in the mineral separates of spinellherzolites and spinel-pyroxenites were determined by instrumental neutron activation analysis. The REE abundance patterns of peridotite inclusions show increasing REE concentrations in the order: dunite, spinel-lherzolite, layered lherzolite, websterite and spinel-pyroxenite. Except spinelpyroxenite this series of inclusions represents a gradation from depleted (the former two groups) to enriched (the later two groups) remnants of source mantle material. The enrichment of REE in spinel-pyroxenites and alkali basalts are in accord with their 17 percent and 3 percent partial melting from a chondritic mantle source. On the basis of our REE concentration measurements on alkali basalts containing peridotite inclusions (Szigliget, Szentbékkálla, Kapolcs) we suggest the introduction of a new group, the peridotite inclusion containing basalt group into GY . PANTÓ'S classification of Hungarian basalts.

Item Type: Article
Journal or Publication Title: Acta mineralogica-petrographica
Date: 1986
Volume: 28
ISSN: 0365-8066
Page Range: pp. 61-74
Language: English
Publisher: University of Szeged, Department of Mineralogy, Geochemistry and Petrology
Place of Publication: Szeged
Related URLs: http://acta.bibl.u-szeged.hu/39406/
Uncontrolled Keywords: Kőzettan, Ásványtan, Földtan
Additional Information: Bibliogr.: 74. p. ; 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. 13:09
URI: http://acta.bibl.u-szeged.hu/id/eprint/24749

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