Biogeosciences
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Articles | Volume 23, issue 5
Articles | Volume 23, issue 5
https://doi.org/10.5194/bg-23-1809-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-23-1809-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 23, issue 5
Research article
 | 
10 Mar 2026
Research article |  | 10 Mar 2026

Evaluating glycerol dialkyl glycerol tetraether (GDGT)-based reconstructions from varved lake sediments during the Holocene

Ashley M. Abrook, Gordon N. Inglis, Peter G. Langdon, McKenzie R. Bentley, Achim Brauer, Ian Bull, Daisy Fallows, Paul Lincoln, Antti E. K. Ojala, Helen L. Whelton, and Celia Martin-Puertas

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Short summary
We present lipid-based environmental and temperature reconstructions spanning the Holocene from three European varved lakes. At each site archaea are impacted by methane which influence lake water temperature reconstructions, and bacteria appear to respond to oxygen conditions and specific lake and environmental processes. Nonetheless, bacterial temperature reconstructions are comparable to regional climate data, showing the potential of varve archives for high resolution reconstructions.
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