The Late Weichselian and Holocene relative sea-level change and isolation basin stratigraphy at the Umba settlement, southern coast of Kola Peninsula

Abstract

The lacustrine-marine (from three lakes) and marine-lacustrine transition (isolation contact) in sediment cores from six lake basins situated 12.0–41.0 m a.s.l. in Umba settlement area, South coast of Kola Peninsula, NW Russia, was identifi ed based on lithological and diatom analysis, radiocarbon dated, and used to construct a relative sea-level (RSL) curve for the Late Weichselian – Holocene. Three lake basins show both transgressive (periglacial lake-transition – marine) and regressive (marine-transition – lacustrine) facies succession, six lake basins show regressive (marine-transition – lacustrine) facies succession indicating a postglacial history of continuous emergence.