Revised age estimate of the Mjáuvøtn tephra A on the Faroe Islands based on Bayesian modelling of 14 C dates from two lake sequences

Tephra horizons are potentially perfect time markers for dating and cross‐correlation among diverse Holocene palaeoenvironmental records such as ice cores and marine and terrestrial sequences, but we need to trust their age. Here we present a new age estimate of the Holocene Mjáuvøtn tephra A using...

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Bibliographic Details
Published in:Journal of quaternary science 2010-07, Vol.25 (5), p.612-616
Main Authors: Olsen, Jesper, Gudmundsdóttir, Esther Ruth, Björck, Svante, Odgaard, Bent V., Heinemeier, Jan
Format: Article
Language:English
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Summary:Tephra horizons are potentially perfect time markers for dating and cross‐correlation among diverse Holocene palaeoenvironmental records such as ice cores and marine and terrestrial sequences, but we need to trust their age. Here we present a new age estimate of the Holocene Mjáuvøtn tephra A using accelerator mass spectrometry 14 C dates from two lakes on the Faroe Islands. With Bayesian age modelling it is dated to 6668–6533 cal. a BP (68.2% confidence interval) – significantly older and better constrained than the previous age. Copyright © 2010 John Wiley & Sons, Ltd.
ISSN:0267-8179
1099-1417
DOI:10.1002/jqs.1405