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Extraction and AMS Radiocarbon Dating of Pollen from Lake Baikal Sediments

Published online by Cambridge University Press:  18 July 2016

Natalia Piotrowska*
Affiliation:
Silesian University of Technology, Institute of Physics, Department of Radioisotopes, Krzywoustego 2, PL-44-100 Gliwice, Poland.
Andrzej Bluszcz
Affiliation:
Silesian University of Technology, Institute of Physics, Department of Radioisotopes, Krzywoustego 2, PL-44-100 Gliwice, Poland.
Dieter Demske
Affiliation:
FU Berlin, Institute of Geological Sciences (Palaeontology), Malteserstr. 74-100, D-12249 Berlin, Germany.
Wojciech Granoszewski
Affiliation:
Polish Geological Institute, Carpathian Branch, Skrzatów 1, PL-31-560 Kraków, Poland. Also: W. Szafer Institute of Botany, PAN, Lubicz 46, PL-31-512 Kraków, Poland.
Georg Heumann
Affiliation:
University Bonn, Institute of Palaeontology, Nussallee 8, D-53115 Bonn, Germany.
*
Corresponding author. Email: natalia.piotrowska@carbon14.pl.
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Abstract

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This work focuses on the preparation and dating of sporomorph (pollen and spores) concentrates of high purity. Three sediment cores recovered from Lake Baikal within the EU-Project CONTINENT were subjected to palynological analyses and accelerator mass spectrometry (AMS) radiocarbon dating. Laboratory processing of concentrates was aimed at the removal of non-sporomorph organic matter by means of chemical treatment, micro-sieving, and heavy liquid separation. The obtained concentrates were checked under the microscope and sample purity was estimated on the basis of particle counts. The results of AMS 14C dating show differences in the sedimentation rate among 3 sites of Lake Baikal.

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