Lithospheric structure of the Sarmatia north-eastern part based on new seismological data

For the first time, based on the receiver function technique, lithospheric velocity models of the Khoper block and the Losevskaya suture zone was obtained. Mentioned structures belongs to the Voronezh crystalline massif of the Sarmatia protocraton. The crust is defined by a four-layer structure with the presence of a waveguide in the lower crust. For the Khoper block of Sarmatia, the presence and characteristics of low velocity zone in the upper mantle at depths of 110–150 km, marking mid-lithospheric discontinuity (MLD), have been identified and determined. A complex, possibly gradient, structure of the crust-mantle transition has been revealed.