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High-Resolution Peat Core Chronology Covering the Last 12 KYR Applying an Improved Peat Bog Sampling

Published online by Cambridge University Press:  19 November 2018

Katalin Hubay*
Isotope Climatology and Environmental Research Centre (ICER), Institute for Nuclear Research, Hungarian Academy of Sciences, Bem Square 18/C, H-4026 Debrecen, Hungary
Mihály Braun
Isotope Climatology and Environmental Research Centre (ICER), Institute for Nuclear Research, Hungarian Academy of Sciences, Bem Square 18/C, H-4026 Debrecen, Hungary
Sándor Harangi
Department of Ecology, University of Debrecen, Egyetem Square 1, H-4032 Debrecen, Hungary
László Palcsu
Isotope Climatology and Environmental Research Centre (ICER), Institute for Nuclear Research, Hungarian Academy of Sciences, Bem Square 18/C, H-4026 Debrecen, Hungary
Marianna Túri
Isotope Climatology and Environmental Research Centre (ICER), Institute for Nuclear Research, Hungarian Academy of Sciences, Bem Square 18/C, H-4026 Debrecen, Hungary
A J Timothy Jull
Isotope Climatology and Environmental Research Centre (ICER), Institute for Nuclear Research, Hungarian Academy of Sciences, Bem Square 18/C, H-4026 Debrecen, Hungary Department of Geosciences, University of Arizona, Tucson, AZ 85721, USA
Mihály Molnár
Isotope Climatology and Environmental Research Centre (ICER), Institute for Nuclear Research, Hungarian Academy of Sciences, Bem Square 18/C, H-4026 Debrecen, Hungary
*Corresponding author. Email:


This work focuses on building a high-resolution age-depth model for quantitative palaeoclimate study from the Mohos peat bog, East Carpathian mountains. The investigated core presents a continuous peat profile for the last 12 kyr. The chronology was based on 36 accelerator mass spectrometry radiocarbon (AMS 14C) analyses of the separated Sphagnum samples from different depths of the profile. Dry Sphagnum samples for AMS dating were prepared using the classic acid-base-acid (ABA) method followed with an oxidative bleaching step to get clean cellulose. Sphagnum cellulose samples were measured by AMS using the EnvironMICADAS at the ICER (Debrecen, Hungary). A high-resolution chronology was obtained with the use of Bayesian age-depth modeling. Peat accumulation rate has been calculated and the sections with variable accumulation rate values were observed along the profile.

© 2018 by the Arizona Board of Regents on behalf of the University of Arizona 

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Selected Papers from the 2nd Radiocarbon in the Environment Conference, Debrecen, Hungary, 3–7 July 2017



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