http://www.cnr.it/ontology/cnr/individuo/prodotto/ID29659
A micro-scale investigation of melt production and extraction in the upper mantle based on silicate melt pockets in ultramafic xenoliths from the Bakony-Balaton Highland volcanic field (Western Hungary). (Articolo in rivista)
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- Label
- A micro-scale investigation of melt production and extraction in the upper mantle based on silicate melt pockets in ultramafic xenoliths from the Bakony-Balaton Highland volcanic field (Western Hungary). (Articolo in rivista) (literal)
- Anno
- 2008-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1007/s00410-007-0234-4 (literal)
- Alternative label
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Bali E.; Zanetti A.; Szabó C.; Peate D.W.; Waight T.E. (literal)
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- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
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- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Bali E. a,b; Zanetti A. c; Szabó C. a; Peate D.W. d; Waight T.E. e:
a Lithosphere Fluid Research Lab, Department of Petrology and Geochemistry, Eötvös University, Budapest, Hungary;
b Bayerisches Geoinstitut, University Bayreuth, Bayreuth, Germany;
c Istituto di Geoscienze e Georisorse-CNR, Sezione di Pavia, Pavia, Italy;
d Department of Geoscience, University of Iowa, Iowa City, USA;
e Institute of Geography and Geology, University of Copenhagen, Copenhagen, Denmark (literal)
- Titolo
- A micro-scale investigation of melt production and extraction in the upper mantle based on silicate melt pockets in ultramafic xenoliths from the Bakony-Balaton Highland volcanic field (Western Hungary). (literal)
- Abstract
- Mantle xenoliths in Neogene alkali basalts of the Bakony-Balaton Highland Volcanic Field (Western
Hungary) frequently have melt pockets that contain silicate minerals, glass, and often carbonate globules. Textural, geochemical and thermobarometric data indicate that the melt pockets formed at relatively high pressure through breakdown of mainly amphibole as a result of temperature increases accompanied, in most cases, by the influx of external metasomatic agents. New elemental and Sr-Nd-Pb isotope data show that in several xenoliths the external agent was either a LIL-enriched aqueous fluid or a CO2-rich fluid, whereas in other xenoliths the melt pockets were additionally enriched in LREE and sometimes
HFSE, suggesting metasomatism by a silicate melt. The compositional character of the external agents might have been inherited by melting of a hydrated and probably carbonated deeper lithospheric component, which itself was metasomatized by melts with significant slab derived components. (literal)
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