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14 - Lateglacial and Postglacial Faulting in the Russian Part of the Fennoscandian Shield
from Part III - Glacially Triggered Faulting in the Fennoscandian Shield
- By Svetlana B. Nikolaeva, Andrey A. Nikonov, Sergey V. Shvarev
Edited by Holger Steffen, Odleiv Olesen, Raimo Sutinen
Book:

Glacially-Triggered Faulting

Published online:

02 December 2021

Print publication:

16 December 2021, pp 246-260
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Summary

This chapter reviews the results of studies of late- and postglacial faults in the Russian part of the Fennoscandian Shield (Kola Peninsula, Karelia, Sankt-Petersburg region). It provides a brief overview and description from north to south of the main seismic lineaments (Murmansk and Kandalaksha) as well as results from a study of some secondary lineaments, individual late- and postglacial faults and seismic dislocations. The obtained data allowed defining a decrease in seismic activity from the Late Glaciation to the present times. It is due to the fading glacial isostatic uplift of the shield and the change of the leading role from the vertically directed forces of glacial isostasy to horizontal compressive strains. Glacial isostasy as a factor giving rise to stresses has nearly exhausted itself by the present time, while the tectonic factor continues to be felt.