Basement-cover relationship in the Polotsk area of the Polotsk-Kurzeme deformation zone: implications from GIS-models of correlation

Abstract

The influence of the crystalline basement faults of the Polotsk-Kurzeme Deformation Zone on the development of the sedimentary cover and the formation of the present topography has been assessed using 3D reconstructions of paleosurfaces, GIS-models of basement-cover correlation and topolineaments identification. The key target area is the Polotsk part of the zone in northern Belarus. The results suggest that this deformation zone, after their first formation in the Mesoproterozoic was still active during the Neoproterozoic-Phanerozoic. The tectonic activity of the Polotsk-Kurzeme Deformation Zone has had influence both on the formation of the sedimentary cover and the present topography.