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14C Record and Wiggle-Match Placement for the Anatolian (Gordion Area) Juniper Tree-Ring Chronology ~1729 to 751 Cal BC, and Typical Aegean/Anatolian (Growing Season Related) Regional 14C Offset Assessment

Published online by Cambridge University Press:  18 July 2016

Sturt W Manning*
Affiliation:
Malcolm and Carolyn Wiener Laboratory for Aegean and Near Eastern Dendrochronology, B-48 Goldwin Smith Hall, Cornell University, Ithaca, New York 14853-3201, USA.
Bernd Kromer
Affiliation:
Heidelberg Academy of Sciences, Heidelberg, and Klaus-Tschira Scientific Dating Laboratory, Curt-Engelhorn-Centre for Archaeometry, Mannheim, Germany.
Christopher Bronk Ramsey
Affiliation:
Research Laboratory for Archaeology, University of Oxford, Dyson Perrins Building, South Parks Road, Oxford OX1 3QY, United Kingdom.
Charlotte L Pearson
Affiliation:
Malcolm and Carolyn Wiener Laboratory for Aegean and Near Eastern Dendrochronology, B-48 Goldwin Smith Hall, Cornell University, Ithaca, New York 14853-3201, USA.
Sahra Talamo
Affiliation:
Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany.
Nicole Trano
Affiliation:
Heidelberg Academy of Sciences, Heidelberg, and Klaus-Tschira Scientific Dating Laboratory, Curt-Engelhorn-Centre for Archaeometry, Mannheim, Germany.
Jennifer D Watkins
Affiliation:
Malcolm and Carolyn Wiener Laboratory for Aegean and Near Eastern Dendrochronology, B-48 Goldwin Smith Hall, Cornell University, Ithaca, New York 14853-3201, USA.
*
Corresponding author. Email: sm456@cornell.edu.
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Abstract

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The East Mediterranean Radiocarbon (inter-)Comparison Project (EMRCP) has measured the 14C ages of a number of sets of tree rings from the Gordion Area dendrochronology from central Anatolia at the Heidelberg Radiocarbon Laboratory. In several cases, multiple measurements were made over a period from the 1980s to 2009. This paper presents the final data set from this work (128 high-precision measurements), and considers (i) the relationship of these data against the standard Northern Hemisphere 14C calibration data set (IntCal09), and (ii) the optimum calendar dating of this floating tree-ring record on the basis of the final set of high-precision 14C data. It finds good agreement between the Anatolian data and IntCal09 in some important intervals (e.g. ∼1729 to 1350 cal BC) and observes one period (9th–8th centuries BC) where there appears to be some indication of a regional/growing season signal, and another period (later 14th–13th centuries BC) where IntCal09 may not best reflect the real 14C record. The scale of the typical growing-season-related regional 14C offset (ΔR) between the Aegean/Anatolian region and IntCal09 is also assessed (for the mid-2nd millennium BC and mid-2nd millennium AD), and found to be usually minor (at times where there are no major additional forcing factors and/or issues with the IntCal09 data set): of the order of 2–4 ± 2–4 yr.

Type
Calibration
Copyright
Copyright © The American Journal of Science 

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