Doklady Earth Sciences

, Volume 465, Issue 2, pp 1268–1271 | Cite as

Isotope composition of neodymium in neo-Archean banded iron formations of Karelia and Kola Peninsula

  • S. B. Felitsyn
  • E. S. Bogomolov
  • N. A. Alfimova


Studies of three deposits of neo-Archean banded iron formations from the West Karelian domain (the Kostomuksha deposit) and from the Central Kola block (the Olenegorsk and Kirovogorsk deposits) showed a pronounced difference in the isotope compositions of Nd from quartz and magnetite–hematite interlayers. The less radiogenic Nd of iron-containing layers compared to that of the quartz component may be considered as an indication of the formation mechanism of the treated banded iron formations. Thus, silicon-containing layers are related to submarine volcanism and iron was supplied to the sedimentation zone from other sources.


Magnetite Isotope Composition Neodymium DOKLADY Earth Science Kola Peninsula 
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Copyright information

© Pleiades Publishing, Ltd. 2015

Authors and Affiliations

  • S. B. Felitsyn
    • 1
  • E. S. Bogomolov
    • 1
  • N. A. Alfimova
    • 1
    • 2
  1. 1.Institute of Precambrian Geology and GeochronologyRussian Academy of SciencesSt. PetersburgRussia
  2. 2.Saint-Petersburg State UniversitySt. PetersburgRussia

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