Early Proterozoic U-Pb Zircon Ages from Basement Gneiss at the Solovetsky Archipelago, White Sea, Russia

Stephan Schuth, Victor I. Gornyy, Jasper Berndt, Sergei S. Shevchenko, Alexandr F. Karpuzov, Tim Mansfeldt

A. P. Karpinsky Russian Geological Research Institute (VSEGEI), Saint-Petersburg, Russia.
Federal Agency of Mineral Resources, Moscow, Russia.
Geographisches Institut, Bodengeographie/Bodenkunde, University of Cologne, Cologne, Germany.
Institut für Mineralogie, Westf?lische Wilhelms-Universit?t Münster, Münster, Germany.
Scientific Research Center for Ecological Safety, Russian Academy of Sciences, Saint-Petersburg, Russia.

DOI: 10.4236/ijg.2012.32030                

Abstract

The central region of the Neoarchaean Belomorian Mobile Belt (BMB) is, except for the Solovetsky Archipelago, largely covered by the White Sea. A newly discovered granitic gneiss outcrop on Solovetsky Island, Russia, enables a first age determination of the archipelago and evaluation of the hitherto poorly constrained central BMB. Zircons separated from the orthogneiss were analysed with SIMS-SHRIMP and LA-ICP-MS techniques. Both techniques yield a concordant U-Pb age of ca. 2.430 Ga, coinciding with ages of granitic intrusions in the BMB ca. 50 km west of the Solovetsky Islands.

Keywords

Solovetsky Archipelago; Granitic Gneiss Outcrop; Age Determination; 2.430 Ga

Conflicts of Interest

The authors declare no conflicts of interest.

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