Scheme of periodization of faulting stages in the Earth's crust of the Ukrainian shield - new data and sequences
© O.B. Gintov, 2014
On the basis of petrological study and reference isotopic geochronological age determinations of Precambrian rocks of the Ukrainian
shield (USh), published lately, a refined geochronological scale of stages of deformation (faulting) of the Earth's crust in this region
has been made up. It is shown that the suture zones of the USh - Golovanevsk, Ingulets-Krivoy Rog and Orekhov-Pavlograd - were
simultaneously formed in the Early Proterozoic. These data allowed us to clarify the scheme and the mechanism of geodynamic evolution
of the central and eastern parts of the shield in the Early Precambrian. Plate tectonic mechanism of formation of the lithosphere structure
of this part of the USh was provided with the action of two convection cells (or plumes) - regional and pulsating local ones.
Key words: geochronology, deformations, faulting, geodynamics.