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Climate of the Past An interactive open-access journal of the European Geosciences Union
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Volume 14, issue 5 | Copyright
Clim. Past, 14, 687-696, 2018
https://doi.org/10.5194/cp-14-687-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 31 May 2018

Research article | 31 May 2018

Synchronizing 10Be in two varved lake sediment records to IntCal13 14C during three grand solar minima

Markus Czymzik1,2, Raimund Muscheler3, Florian Adolphi3,4, Florian Mekhaldi3, Nadine Dräger1, Florian Ott1,5, Michał Słowinski6, Mirosław Błaszkiewicz6,7, Ala Aldahan8, Göran Possnert9, and Achim Brauer1 Markus Czymzik et al.
  • 1GFZ-German Research Centre for Geosciences, Section 5.2 Climate Dynamics and Landscape Evolution, 14473 Potsdam, Germany
  • 2Leibniz-Institute for Baltic Sea Research Warnemünde (IOW), Marine Geology, 18119 Rostock, Germany
  • 3Department of Geology, Quaternary Sciences, Lund University, 22362 Lund, Sweden
  • 4Physics Institute, Climate and Environmental Physics, University of Bern, 3012 Bern, Switzerland
  • 5Max Planck Institute for the Science of Human History, 07743 Jena, Germany
  • 6Polish Academy of Sciences, Institute of Geography and Spatial Organization, Warszawa 00-818, Poland
  • 7Polish Academy of Sciences, Institute of Geography and Spatial Organization, Torun 87-100, Poland
  • 8Department of Geology, United Arab Emirates University, 15551 Al Ain, UAE
  • 9Tandem Laboratory, Uppsala University, 75120 Uppsala, Sweden

Abstract. Timescale uncertainties between paleoclimate reconstructions often inhibit studying the exact timing, spatial expression and driving mechanisms of climate variations. Detecting and aligning the globally common cosmogenic radionuclide production signal via a curve fitting method provides a tool for the quasi-continuous synchronization of paleoclimate archives. In this study, we apply this approach to synchronize 10Be records from varved sediments of Tiefer See and Lake Czechowskie covering the Maunder, Homeric and 5500aBP grand solar minima with 14C production rates inferred from the IntCal13 calibration curve. Our analyses indicate best fits with 14C production rates when the 10Be records from Tiefer See were shifted for 8 (−12∕ + 4) (Maunder Minimum), 31 (−16∕ + 12) (Homeric Minimum) and 86 (−22∕ + 18) years (5500aBP grand solar minimum) towards the past. The best fit between the Lake Czechowskie 10Be record for the 5500aBP grand solar minimum and 14C production was obtained when the 10Be time series was shifted 29 (−8∕ + 7) years towards present. No significant fits were detected between the Lake Czechowskie 10Be records for the Maunder and Homeric minima and 14C production, likely due to intensified in-lake sediment resuspension since about 2800aBP, transporting old 10Be to the coring location. Our results provide a proof of concept for facilitating 10Be in varved lake sediments as a novel synchronization tool required for investigating leads and lags of proxy responses to climate variability. However, they also point to some limitations of 10Be in these archives, mainly connected to in-lake sediment resuspension processes.

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Our results provide a proof of concept for facilitating 10Be in varved lake sediments as a novel synchronization tool required for investigating leads and lags of proxy responses to climate variability. They also point to some limitations of 10Be in these archives mainly connected to in-lake sediment resuspension processes.
Our results provide a proof of concept for facilitating 10Be in varved lake sediments as a novel...
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