Neopleistocene Deposits in the Kola Region: Stratigraphy and the Key-Sections – A Contribution to the Database of the Quaternary Terrestrial European Stratigraphy (Datestra)

Abstract

In recent years, the Neopleistocene stratigraphy arouses interest in the context of the DATESTRA Project (Database of Terrestrial European Stratigraphy) [6], which has been supported by INQUA. Neopleistocene deposits in the Kola region have accumulated under conditions of recurrent glaciations and the following interglacial warming with marine transgressions, which appeared here in the coastal areas. The interglacial-glacial cyclicity offers an opportunity to apply climatostratigraphic methods for subdivision of corresponding deposits. Accompanied by biostragraphic and geochronometrical methods, this approach enables definition and correlation of short-term (about tens of thousands years) stratigraphic units. Using this approach, middle and the upper Neopleistocene units have been identified in the sediment successions in the Kola Region. The aim of this paper is to review the available data (published mainly in Russian), which are applicable to the Database of Terrestrial European Stratigraphy.

Highly variable sediment deposition in Lake Imandra, NW Russia, since the Late Pleistocene

“…During MIS 5e (Eemian/Miculinian Interglacial) a marine environment prevailed in the Kola region, as shown by the littoral and sublittoral sand and clay that accumulated along the north-eastern, eastern and southern coasts of the Kola Peninsula, as well as to a lesser extent in the central part of the peninsula (e.g. Lavrova, 1960;Grave et al, 1969;Gudina and Yevzerov, 1981;Korsakova, 2018Korsakova, , 2019Lunkka et al, 2018). The transition from marine to lacustrine sediment or peat in a transect of several smaller basins at different altitudes suggests that sea level rose to c. 150 m above modern sea level (a.s.l.)…”