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The Eemian interglacial in Sweden, and comparison with Finland

Published online by Cambridge University Press:  01 April 2016

Ann-Marie Robertsson
Ann-Marie Robertsson*
Affiliation:
Department of Quaternary Research, Stockholm University, S-10691 STOCKHOLM, Sweden
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Abstract

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The current status of knowledge concerning the Eemian interglacial in Sweden is surveyed, and comparisons are made with northern and western Finland. The course of shore displacement is fragmentarily known for Sweden, since brackish-marine sediments have been identified, on the basis of diatom analysis, at only few sites. In Finland, on the other hand, a shoredisplacement curve has been constructed for the Eemian Baltic Sea in Ostrobothnia, central western Finland.

The vegetation history is summarised for the southernmost part of Sweden, and can be correlated with that documented in Denmark. For the central part of Sweden, information is sparse, but the composition of the forests has been outlined for most of the interglacial, although information on regional pollen assemblage zones E3 and E4 (early-temperate substage) are mainly missing. A more complete picture of the interglacial vegetational history is known from Ostrobothnia in Finland. The thermophilous indicators Viscum, Ilex, Hedera and Osmunda grew far North during the Eemian. Corylus and Carpinus expanded much further to the North than during the Holocene. In Swedish and Finnish Lapland, the vegetation history is similar except that Larix was common in Finland during the Eemian, but its presence has so far not been confirmed in Sweden.

Eemian deposits relocated during the Weichselian glaciation contain pollen and diatoms that can be used for reconstruction of the Eemian environment. No clear indication of a rapid climatic deterioration during the Eemian has been found so far in either Swedish or Finnish sequences.

Keywords

EemianFinlandrebedded pollenrelocated depositsshore displacementSwedenvegetation history
Type
Research Article
Information
Netherlands Journal of Geosciences , Volume 79 , Issue 2-3 , August 2000 , pp. 325 - 333
Copyright
Copyright © Stichting Netherlands Journal of Geosciences 2000

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