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- Title
Alleröd deposits at Zervynos on the Ūla River: geology, geochronology and malacofauna.
- Authors
Sanko, Aleksander; Gaigalas, Algirdas
- Abstract
The paper contains results of new investigations of interstadial deposits at Zervynos on the Ūla River in southeastern Lithuania regarding sapropelite occurence, radiocarbon dating and malacological analysis. Organic deposits belong to a lake formation. The age of lake deposits is the Alleröd time. The Zervynos malacofauna consists of seven ecological groups, eurytopic water molluscs playing the main role (41%). Lake species and those of overgrowing and silting water make only 18%. Lake fauna is characterised by Gyraulus laevis (Alder) and Armiger crista (Linnaeus). Evolution of the Ūla River valley is related to the development of glaciokarst depressions.
- Subjects
LITHUANIA; GEOLOGY; CARBON isotopes; SAPROPELITES; LAKES
- Publication
Geologija, 2008, Issue 61, p49
- ISSN
1392-110X
- Publication type
Article
- DOI
10.2478/v10056-008-0007-4