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Diatomeen-Analyse an Sedimentbohrkernen aus dem See Genezareth (Israel)

Abstract

This master thesis contains a quantitative diatom study from an approximately 18 m long sediment core (composite profile) from Lake Kinneret (Israel). The sediment cores were taken during a drilling campaign in March 2010 at the deepest site of the lake (42 m water depth) and are part of the SFB-project 806 “Our way to Europe” in the sub-project B3.
In this study different methods for fossil diatom preparation are presented. In addition 19 sediment samples (one meter resolution) were counted for investigations of remarkable changes in the diatom flora through the 18 m core and over time. A division into five diatom zones is proposed. First interpretations of changes in palaeoecology and evolution of the lake basin over the last 8 000 years cal BP are given. Mainly visible in the changes of the diatom assemblages are the increase of eutrophication of the lake system by human influence (beginning at approx. 3 000 years cal BP) and sea level fluctuations. These results can be correlated with former diatom studies from short cores material of the littoral zones of Lake Kinneret, which cover 5 000 years cal BP (Pollingher et al., 1984; Ehrlich, 1985). The results are also in accordance to climatological models of the Levant region (Litt et al., 2012) and can be interpreted together with other proxies like the Olea-pollen curve (Schiebel, 2013, unpublished).

Bibliography

Vossel, H. (2012): Diatomeen-Analyse an Sedimentbohrkernen aus dem See Genezareth (Israel). University of Bonn

Authors Vossel, Hannah
Type mastersthesis
Title Diatomeen-Analyse an Sedimentbohrkernen aus dem See Genezareth (Israel)
Year 2012
Pages 69
School University of Bonn
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