Pre-Cambrian faults significance for location of glacial depositional features at the Kola Peninsula

Abstract

Within the areas where the crystalline basement forms the surf ace or lies near it, unhomogeneities of ice sheets structure and dynamics inevitably put in motion the mechanism of differentiated isostatic subsidence of individual large crust blocks delimited by ancient deep faults, the process being reflected in the Pre-Quaternary bedrock topography. The bedrock topography controls distribution of the accelerated debris accumulation and morphogenetic types of glacial depositional landforms (which depend on paleoenvironments).