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New Bomb Pulse Radiocarbon Records from Annual Tree Rings in the Northern Hemisphere Temperate Region

Published online by Cambridge University Press:  18 July 2016

G Quarta ,
M D'Elia ,
D Valzano  and
L Calcagnile
G Quarta*
Affiliation:
Dipartimento di Ingegneria dell'Innovazione, Università di Lecce, via Arnesano, 73100 Lecce, Italy
M D'Elia
Affiliation:
Dipartimento di Ingegneria dell'Innovazione, Università di Lecce, via Arnesano, 73100 Lecce, Italy
D Valzano
Affiliation:
Dipartimento di Ingegneria dell'Innovazione, Università di Lecce, via Arnesano, 73100 Lecce, Italy
L Calcagnile
Affiliation:
Dipartimento di Ingegneria dell'Innovazione, Università di Lecce, via Arnesano, 73100 Lecce, Italy
*
Corresponding author. Email: gianluca.quarta@unile.it.
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Abstract

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The “bomb” radiocarbon spike induced by atmospheric nuclear detonations has been reconstructed at a latitude of 40°N by measuring the 14C content in annual rings of a living pine (Pinus pinea) at the Accelerator Mass Spectrometry facility of the University of Lecce. We report how the samples were taken, selected, prepared for analysis, and measured. The results are in good agreement with other data sets available for the Northern Hemisphere temperate regions, showing that a curve for the calibration of 14C dates, valid for the whole Northern Hemisphere, can be established for the second half of the 20th century.

Type
Articles
Information
Radiocarbon , Volume 47 , Issue 1 , 2005 , pp. 27 - 30
Copyright
Copyright © 2005 by the Arizona Board of Regents on behalf of the University of Arizona 

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