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Bomb Radiocarbon in Tree Rings from Northern New South Wales, Australia: Implications for Dendrochronology, Atmospheric Transport, and Air-Sea Exchange of CO2

Published online by Cambridge University Press:  18 July 2016

Quan Hua ,
Mike Barbetti ,
Ugo Zoppi ,
David M Chapman  and
Bruce Thomson
Quan Hua*
Affiliation:
Australian Nuclear Science and Technology Organisation (ANSTO), PMB 1, Menai, New South Wales 2234, Australia.
Mike Barbetti
Affiliation:
The NWG Macintosh Centre for Quaternary Dating, Madsen Building F09, University of Sydney, New South Wales 2006, Australia.
Ugo Zoppi
Affiliation:
Australian Nuclear Science and Technology Organisation (ANSTO), PMB 1, Menai, New South Wales 2234, Australia.
David M Chapman
Affiliation:
School of Geosciences, Madsen Building F09, University of Sydney, New South Wales 2006, Australia.
Bruce Thomson
Affiliation:
School of Geosciences, Madsen Building F09, University of Sydney, New South Wales 2006, Australia.
*
Corresponding author. Email: [email protected].
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Abstract

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We have analyzed by radiocarbon 27 consecutive single rings, starting from AD 1952, of a preliminarily cross-dated section (DFR 021) of Pinus radiata, which grew in Armidale, northern New South Wales, Australia. The bomb 14C results suggested the possibility of 2 false rings, and, consequently, 2 misidentified rings in the preliminary count for this section. This possibility was supported by a better ring-width correlation between the revised DFR 021 count and other Pinus radiata chronologies in the study region. This indicated that bomb 14C is a useful tool to complement the standard techniques of dendrochronology in tree species where annual rings are not always clearly defined.

Type
Environmental Studies
Information
Radiocarbon , Volume 45 , Issue 3 , 2003 , pp. 431 - 447
Copyright
Copyright © The Arizona Board of Regents on behalf of the University of Arizona 

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