Late Proterozoic A-Type Granites of the Chernorechenskii Massif in the Yenisei Ridge: New Geochemical and Geochronological Data

摘要

The problems in estimation of the geochronological boundaries in the history of the breakup of the Rodinia Supercontinent are mostly far from their final solution. This is explained by the lack of precise dat-ings, which limits significantly the possibilities of age correlations for global geological processes. Because of this, the problem of geochemical specifics and dating of Neoproterozoic granitoid complexes, i.e., the main components of the continental crust and indicators of geodynamic environments of key significance for reconstruction of events in the lithosphere evolution, is still important.