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Doklady Earth Sciences

, Volume 429, Issue 2, pp 1575–1579 | Cite as

Geochemical and isotopic signatures of nonsubduction mechanisms of formation of the Neoarchean continental lithosphere of the Fennoscandian shield

  • A. B. Vrevskii
Geochemistry

Abstract

This study presents new data on the geochemical and Sm-Nd isotope compositions, as well as the U-Pb age and geodynamic nature, of the Neoarchean basalt-andesite-dacite (BAD) association from the Kolmozero-Voron’ya greenstone belt. As it was first demonstrated by the example of the Neoarchean greenstone belt, the formation of BAD associations within a single Neoarchean greenstone structure may be explained by the long-lasting evolution of separate mantle or crustal sources not related to subduction processes.

Keywords

DOKLADY Earth Science Mantle Plume Greenstone Belt Geochemical Signature 147Sm 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Pleiades Publishing, Ltd. 2009

Authors and Affiliations

  • A. B. Vrevskii
    • 1
  1. 1.Institute of Precambrian Geology and GeochronologyRussian Academy of SciencesSaint PetersburgRussia

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