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Radiocarbon Pretreatment Comparisons of Bald Cypress (Taxodium Distichum) wood samples from a massive buried deposit on the Georgia Coast, USA

Published online by Cambridge University Press:  11 October 2019

Katharine G Napora Open the ORCID record for Katharine G Napora [Opens in a new window] ,
Alexander Cherkinsky ,
Robert J Speakman ,
Victor D Thompson Open the ORCID record for Victor D Thompson [Opens in a new window] ,
Robert Horan  and
Craig Jacobs
Katharine G Napora*
Affiliation:
Department of Anthropology, University of Georgia, Athens, GA, USA Center for Applied Isotope Studies, University of Georgia, Athens, GA, USA
Alexander Cherkinsky
Affiliation:
Center for Applied Isotope Studies, University of Georgia, Athens, GA, USA
Robert J Speakman
Affiliation:
Department of Anthropology, University of Georgia, Athens, GA, USA Center for Applied Isotope Studies, University of Georgia, Athens, GA, USA
Victor D Thompson
Affiliation:
Department of Anthropology, University of Georgia, Athens, GA, USA
Robert Horan
Affiliation:
Georgia Department of Natural Resources, Wildlife Resources Division, Brunswick, GA, USA
Craig Jacobs
Affiliation:
Georgia Department of Natural Resources, Wildlife Resources Division, Brunswick, GA, USA
*
*Corresponding author. Email: knapora@uga.edu.
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Abstract

We sampled individual growth rings from three ancient remnant bald cypress (Taxodium distichum) trees from a massive buried deposit at the mouth of the Altamaha River on the Georgia Coast to determine the best technique for radiocarbon (14C) dating pretreatment. The results of our comparison of traditional ABA pretreatment and holocellulose and α-cellulose fractions show no significant differences among the pretreatments (<1 sigma) thereby suggesting that ABA pretreatment will prove sufficient for the development of a high-resolution 14C tree-ring chronology based on these ancient bald cypresses which will indicate whether the U.S. Southeast is subject to a regional radiocarbon offset.

Keywords

AMS datingbald cypressdendrochronologypretreatmentsradiocarbon offsets
Type
Conference Paper
Information
Radiocarbon , Volume 61 , Issue 6: Radiocarbon 2018 Conference Proceedings Trondheim, Norway, June 17–22, 2018 Part 2 of 2 , December 2019 , pp. 1755 - 1763
Copyright
© 2019 by the Arizona Board of Regents on behalf of the University of Arizona 

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Footnotes

Selected Papers from the 23rd International Radiocarbon Conference, Trondheim, Norway, 17–22 June, 2018

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