Articles | Volume 2, issue 1
https://doi.org/10.5194/gchron-2-63-2020
https://doi.org/10.5194/gchron-2-63-2020
Research article
 | 
17 Apr 2020
Research article |  | 17 Apr 2020

Miniature radiocarbon measurements ( <  150 µg C) from sediments of Lake Żabińskie, Poland: effect of precision and dating density on age–depth models

Paul D. Zander, Sönke Szidat, Darrell S. Kaufman, Maurycy Żarczyński, Anna I. Poraj-Górska, Petra Boltshauser-Kaltenrieder, and Martin Grosjean

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Cited articles

Barnekow, L., Possnert, G., and Sandgren, P.: AMS 14C chronologies of Holocene lake sediments in the Abisko area, northern Sweden – a comparison between dated bulk sediment and macrofossil samples, GFF, 120, 59–67, https://doi.org/10.1080/11035899801201059, 1998. 
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Blaauw, M. and Christen, J. A.: rbacon: Age-Depth Modelling using Bayesian Statistics, R package version 2.3.4, available at: https://CRAN.R-project.org/package=rbacon (last access: 23 March 2020), 1–14, 2018. 
Blaauw, M., Christen, J. A., Bennett, K. D., and Reimer, P. J.: Double the dates and go for Bayes – Impacts of model choice, dating density and quality on chronologies, Quaternary Sci. Rev., 188, 58–66, https://doi.org/10.1016/j.quascirev.2018.03.032, 2018. 
Bonk, A., Tylmann, W., Goslar, T., Wacnik, A., and Grosjean, M.: Comparing varve counting and 14C-Ams chronologies in the sediments of Lake Żabińskie, Northeastern Poland: Implications for accurate 14C dating of lake sediments, Geochronometria, 42, 157–171, https://doi.org/10.1515/geochr-2015-0019, 2015a. 
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Short summary
Recent technological advances allow researchers to obtain radiocarbon ages from smaller samples than previously possible. We investigate the reliability and precision of radiocarbon ages obtained from miniature (11–150 μg C) samples of terrestrial plant fragments taken from sediment cores from Lake Żabińskie, Poland. We further investigate how sampling density (the number of ages per 1000 years) and sample mass (which is related to age precision) influence the performance of age–depth models.