PALAEOTECTONIC RECONSTRUCTION OF THE EAST EUROPEAN PLATFORM IN THE PALAEOPROTEROZOIC BASED ON THE RESULTS OF PALAEOMAGNETIC STUDIES

The results of palaeomagnetic studies of the Palaeoproterozoic rocks of the Volyn and Inhul domain of the Ukrainian Shield are presented. Based on the new data and selection of the most reliable palaeomagnetic determinations for the Palaeoproterozoic of the East European Platform, the palaeotectonic reconstructions of the East European Platform (EEC) for the studied time intervals of ~2.0–1.75 Ga are proposed. According to palaeomagnetic data, ~1.76 Gya Fennoscandia occupied a sub-equatorial position, and the Volgo-Sarmatia was located near the equator and rotated counterclockwise relative to Fennoscandia by ~40° compared to its present position within the EEC. Thus, the final formation of the EEC occurred no earlier than 1.76 Gya.