Isotope composition and magma sources of the Kresty volcanopluton in Polar Siberia

The first data are presented on the distribution of rare elements and isotope composition of neodymium and strontium in the rocks of the alkaline-ultramafitic association of the Kresty volcanoplutonic structure (one of the probable satellites of the Gulinian massif being the largest in the Maimecha-...

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Bibliographic Details
Published in:Doklady earth sciences 2009-08, Vol.427 (2), p.961-967
Main Authors: Gertner, I. F., Vrublevskii, V. V., Sazonov, A. M., Krasnova, T. S., Kolmakov, Yu. V., Zvyagina, E. A., Tishin, P. A., Voitenko, D. N.
Format: Article
Language:English
Subjects:
Earth and Environmental Science
Earth Sciences
Geochemistry
Isotopes
Magma
Neodymium
Strontium
Volcanoes
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Summary:The first data are presented on the distribution of rare elements and isotope composition of neodymium and strontium in the rocks of the alkaline-ultramafitic association of the Kresty volcanoplutonic structure (one of the probable satellites of the Gulinian massif being the largest in the Maimecha-Kotui alkaline province in Polar Siberia). On the basis of the results of geochemical studies performed and formerly obtained geophysical and isotope data, a new model is proposed for the plume nature of magmatism in the region, based on the action of a single mantle source of the PREMA type and its active interaction with the matter of the Earth’s crust.
ISSN:1028-334X
1531-8354
DOI:10.1134/S1028334X09060166