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Age-Depth Model of Lake Soppensee (Switzerland) Based on the High-Resolution 14C Chronology Compared with Varve Chronology

Published online by Cambridge University Press:  18 July 2016

Irka Hajdas*
Affiliation:
Laboratory of Ion Beam Physics, ETH Zürich, Schafmattstrasse 20, 8093 Zürich, Switzerland
Adam Michczyński
Affiliation:
Silesian University of Technology, Institute of Physics, Radiocarbon Laboratory, GADAM Centre of Excellence, Bolesława Krzywoustego 2, 44–100 Gliwice, Poland
*
Corresponding author. Email: hajdas@phys.ethz.ch
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Abstract

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An age-depth model for laminated sediments of Lake Soppensee is constructed using radiocarbon ages of macrofossils and a depositional model of the OxCal v 4.1 program with the updated IntCal09 data set. The resulting calendar chronology is compared with the varve chronology that was built for this record in a previous study (Hajdas 1993); there is a very good agreement between the 2 approaches. This illustrates the potential of high-resolution 14C dating for construction of reliable, high-resolution calendar timescales for sedimentary records. Based on the age-depth model of this study, the Vasset/Killian tephra found in sediment of Soppensee dates to a calendar age of 9291–9412 cal BP (2-σ range) while the Lachersee tephra dates to 12,735–12,871 cal BP (2-σ range). Precise dating of the Late Glacial boundaries is possible with this chronology but requires more precise correlation between proxies and records than typically practiced.

Type
Calibration, Data Analysis, and Statistical Methods
Copyright
Copyright © 2010 by the Arizona Board of Regents on behalf of the University of Arizona 

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