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Calibration of the 14C Time Scale Beyond 22,000 BP

Published online by Cambridge University Press:  18 July 2016

Mebus A. Geyh  and
Christian Schlüchter
Mebus A. Geyh
Affiliation:
Niedersächsisches Landesamt für Bodenforschung, P.O. Box 510153, D-30631 Hannover, Germany
Christian Schlüchter
Affiliation:
Geological Institute, University of Bern, Baltzerstrasse 1, CH–3012 Bern, Switzerland
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Abstract

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The conventional 14C time scale between 11,500 and 22,000 sidereal years has been calibrated by TIMS U/Th dates for corals. Only a few studies have been made for the time beyond this range. Obtaining samples suitable for numerical dating or estimating the reservoir correction of the 14C dates has been difficult, but we do not have these problems with TIMS U/Th dating of interstadial and interglacial lignite, because reservoir corrections are unnecessary.

Type
Part 1: Methods
Information
Radiocarbon , Volume 40 , Issue 1: 16th International Radiocarbon Conference 16-20,1997 Groningen , 1997 , pp. 475 - 482
Copyright
Copyright © The American Journal of Science 

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