The Karelian Craton in the Structure of the Kenorland Supercontinent in the Neoarchean: New Paleomagnetic and Isotope Geochronology Data on Granulites of the Onega Complex

Abstract

New paleomagnetic and isotope-geochronological data obtained for the Onega granulite complex of Neoarchean age are used to reconstruct the position of the Karelian craton in the structure of the Kenorland supercontinent in the Neoarchean. Geological correlations are made for the Karelian, Kaapvaal, Pilbara, Superior, and Slave cratons. Comparison of independent geological and paleomagnetic data allow us to propose a new configuration of the Kenorland supercontinent in the Neoarchean. The position of the ancient core of the Karelian craton (the Vodlozero terrane), located in the Northwestern margin of the supercontinent, is reconstructed based on the earlier paleomagnetic data for the Neoarchean Panozero sanukitoid massif and new data for granulites of the Onega complex.