Premium
Revised age estimate of the Mjáuvøtn tephra A on the Faroe Islands based on Bayesian modelling of 14 C dates from two lake sequences
Author(s) -
Olsen Jesper,
Gudmundsdóttir Esther Ruth,
Björck Svante,
Odgaard Bent V.,
Heinemeier Jan
Publication year - 2010
Publication title -
journal of quaternary science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.142
H-Index - 94
eISSN - 1099-1417
pISSN - 0267-8179
DOI - 10.1002/jqs.1405
Subject(s) - tephra , holocene , geology , tephrochronology , volcano , physical geography , bayesian probability , confidence interval , paleontology , oceanography , geography , statistics , mathematics
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.