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Different phases of the Yoldia Sea in the north-western Baltic Proper
1995 (English)In: Quaternary International, ISSN 1040-6182, Vol. 27, 121-129 p.Article in journal (Refereed) Published
Abstract [en]

Four sediment cores from the north-western Baltic Proper, covering the time from the Weichselian deglaciation to the present have been studied. Main interest is focused on the Yoldia stage, and especially the duration of the marine phase of this stage. The lithological compositions of the sediments and results of different analyses (magnetic, carbonate, ostracods and foraminifera) have resulted in a subdivision into five stratigraphical units (A-E, from older to younger). Unit A was deposited in a glaciolacustrine environment, probably during the first non-saline phase of the Yoldia stage. The first ingression of saline water is recorded in unit B. Brackish water ostracods and foraminifera occur exclusively in this unit, which represents the only saline phase of the Yoldia stage. This phase lasted for less than 120 clay varve years. Unit C was deposited in fresh water, probably during the last phase of the Yoldia stage and the Ancylus stage. The uppermost units, D and E are of Holocene age and represent different phases of the Litorina and Post-Litorina stages.

Place, publisher, year, edition, pages
1995. Vol. 27, 121-129 p.
National Category
Earth and Related Environmental Sciences
Identifiers
URN: urn:nbn:se:sh:diva-5980DOI: 10.1016/1040-6182(94)00069-HOAI: oai:DiVA.org:sh-5980DiVA: diva2:394766
Available from: 2011-02-03 Created: 2011-02-03 Last updated: 2011-02-03Bibliographically approved

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Andrén, Thomas
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