New age data on the Archean rocks of the Vodlozero domain, Baltic shield, and their significance for geodynamic reconstructions

New age data on the Archean rocks of the Vodlozero domain, Baltic shield, and their significance for geodynamic reconstructions

The Vodlozero domain composes the eastern part of the Fenno Karelian province of the Baltic shield. A significant part of its area is occupied by rocks of the tonalitetrondhjemitegranodiorite (TTG) series. The available UPb zircon datings on some of these rocks are ~3.24 Ga, which makes it possible...

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Veröffentlicht in:Doklady earth sciences 2012, Vol.442 (1), p.1-7
Hauptverfasser: Arestova, N. A., Chekulaev, V. P., Matveeva, L. V., Kucherovskii, G. A., Lepekhina, E. N., Sergeev, S. A.
Format: Artikel
Sprache:eng
Schlagworte:
Earth and Environmental Science
Earth Sciences
Geological time
Geology
Geophysics
Greenstone belts
Rocks
Volcanology
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Zusammenfassung:The Vodlozero domain composes the eastern part of the Fenno Karelian province of the Baltic shield. A significant part of its area is occupied by rocks of the tonalitetrondhjemitegranodiorite (TTG) series. The available UPb zircon datings on some of these rocks are ~3.24 Ga, which makes it possible to consider the domain as the ancient core of the Baltic shield. The marginal parts of the domain are made up of greenstone belts consisting mainly of meta morphosed komatiite basaltic volcanics.
ISSN:1028-334X
1531-8354
DOI:10.1134/S1028334X12010023