Tectono-depositional history of the Central Russian aulacogen and Moscow syneclise

Abstract

The modern structure of the Central Russian region was formed by tight and long-term (hundreds of million years) interaction of tectonic and sedimentary processes in the upper crust and sedimentary cover. Petrophysical properties of the Paleoproterozoic crust predetermined the area for the development of regional strike-slip faults and aulacogen grabens in the Neoproterozoic. The transfer displacement of the aulacogen axis at the end of Riphean led to the partial erosion and redeposition of the preplate cover and caused the subsequent structural asymmetry of syneclise. The development of reversed structures in the plate cover (Sukhona mega swell) was caused by the slower subsidence of comparatively lighter fragments of the aulacogen crust relative to the surrounding frame.