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)

Eniko Bali; A. Zanetti; C. Szabo; D.W. Peate; Tod Earle Waight

doi:DOI 10.1007/s00410-007-0234-4

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)

Eniko Bali, A. Zanetti, C. Szabo, D.W. Peate, Tod Earle Waight

Geology

26 Citations (Scopus)

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 slabderived components.

Original language	English
Journal	Contributions to Mineralogy and Petrology
Pages (from-to)	165-179
ISSN	0010-7999
DOIs	https://doi.org/DOI 10.1007/s00410-007-0234-4
Publication status	Published - 2008

Keywords

Faculty of Humanities
silicate melt pockets
ultramafic xenoliths
bakony-balaton highland volcanic field

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DOI 10.1007/s00410-007-0234-4

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Bali, E., Zanetti, A., Szabo, C., Peate, D. W., & Waight, T. E. (2008). 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). Contributions to Mineralogy and Petrology, 165-179. https://doi.org/DOI 10.1007/s00410-007-0234-4

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). / Bali, Eniko; Zanetti, A.; Szabo, C. et al.

In: Contributions to Mineralogy and Petrology, 2008, p. 165-179.

Research output: Contribution to journal › Journal article › Research › peer-review

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title = "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)",

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 slabderived components.",

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author = "Eniko Bali and A. Zanetti and C. Szabo and D.W. Peate and Waight, {Tod Earle}",

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T1 - 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)

AU - Bali, Eniko

AU - Zanetti, A.

AU - Szabo, C.

AU - Peate, D.W.

AU - Waight, Tod Earle

PY - 2008

Y1 - 2008

N2 - 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 slabderived components.

AB - 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 slabderived components.

KW - Faculty of Humanities

KW - silicate melt pockets

KW - ultramafic xenoliths

KW - bakony-balaton highland volcanic field

U2 - DOI 10.1007/s00410-007-0234-4

DO - DOI 10.1007/s00410-007-0234-4

M3 - Journal article

SN - 0010-7999

SP - 165

EP - 179

JO - Contributions to Mineralogy and Petrology

JF - Contributions to Mineralogy and Petrology

ER -

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)

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Keywords

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