Identification of geodynamic setting and of folding formation mechanisms using of strain ellipsoid concept for multi-scale structures of Greater Caucasus

► Description of folding in different scales using ellipsoid of strain is offered. ► Two methods used for calculation of shortening value in folds by the shape of layers ► Gravitational sliding mechanism for Vorontsovsky nappe was proved using strain study. ► Several theoretical mechanisms were studied using strain ellipsoid in folded domains. ► Folding mechanisms in the Greater Caucasus were found based on comparison with models.