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File:Carbon14 with activity labels.svg

Summary

Carbon-14-calibration.png
Sunspot Numbers.png
Description
English: Changes in the 14C record, which are primarily (but not exclusively) caused by changes in solar activity. Note that "before present" is used in the context of radiocarbon dating, where the "present" has been fixed at 1950.

Italiano: Variazioni del Carbonio-14 negli ultimi 1200 anni
Date 28 February 2007 (first version); 21 November 2006 (last version)
Source All data are from publicly available sources.
(red trace) Carbon 14 record: http://www.radiocarbon.org/IntCal04%20files/intcal04.14c
Transferred from en.wikipedia to Commons by User:Common Good using CommonsHelper.
Author This figure was produced by Leland McInnes using gnuplot and is licensed under the GFDL. Original uploader was Leland McInnes at en.wikipedia. Later version(s) were uploaded by Dragons flight at en.wikipedia.
Permission
( Reusing this file)

Released under the GNU Free Documentation License
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Licensing

Leland McInnes at the English language Wikipedia, the copyright holder of this work, hereby publishes it under the following license:
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Image title Produced by GNUPLOT 4.1 patchlevel 0

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