Articles | Volume 16, issue 9
The Cryosphere, 16, 3601–3617, 2022
https://doi.org/10.5194/tc-16-3601-2022
The Cryosphere, 16, 3601–3617, 2022
https://doi.org/10.5194/tc-16-3601-2022
Research article
08 Sep 2022
Research article | 08 Sep 2022

Molecular biomarkers in Batagay megaslump permafrost deposits reveal clear differences in organic matter preservation between glacial and interglacial periods

Loeka L. Jongejans et al.

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Cited articles

Ashastina, K., Schirrmeister, L., Fuchs, M., and Kienast, F.: Palaeoclimate characteristics in interior Siberia of MIS 6–2: first insights from the Batagay permafrost mega-thaw slump in the Yana Highlands, Clim. Past, 13, 795–818, https://doi.org/10.5194/cp-13-795-2017, 2017. 
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Short summary
Large parts of Arctic Siberia are underlain by permafrost. Climate warming leads to permafrost thaw. At the Batagay megaslump, permafrost sediments up to ~ 650 kyr old are exposed. We took sediment samples and analysed the organic matter (e.g. plant remains). We found distinct differences in the biomarker distributions between the glacial and interglacial deposits with generally stronger microbial activity during interglacial periods. Further permafrost thaw enhances greenhouse gas emissions.