Another rapid event in the carbon-14 content of tree rings

Fusa Miyake (), Kimiaki Masuda and Toshio Nakamura
Additional contact information
Fusa Miyake: Solar-Terrestrial Environment Laboratory, Nagoya University, Chikusa-ku
Kimiaki Masuda: Solar-Terrestrial Environment Laboratory, Nagoya University, Chikusa-ku
Toshio Nakamura: Center for Chronological Research, Nagoya University, Chikusa-ku

Nature Communications, 2013, vol. 4, issue 1, 1-6

Abstract: Abstract Previously, we have observed that the atmospheric 14C content measured in tree rings showed a strong increase from AD 774 to 775. Although the cause of this event can be explained by a large solar proton event or a short gamma-ray burst, a more detailed discussion of the cause is difficult because the rate of occurrence of such rapid 14C events remains unknown. Here we report new 14C measurements from AD 822 to 1021, and the discovery of a second rapid increase of 14C content from AD 993 to 994. The 10Be flux in the Antarctic ice core shows peaks corresponding to these two 14C events. The proportions of flux increase (14C/10Be) of the two events are consistent with each other. Therefore, it is highly possible that these events have the same origin. Considering the occurrence rate of 14C increase events, solar activity is a plausible cause of the 14C increase events.

Date: 2013
References: Add references at CitEc
Citations: View citations in EconPapers (3)

Downloads: (external link)
https://www.nature.com/articles/ncomms2783 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:4:y:2013:i:1:d:10.1038_ncomms2783

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/ncomms2783

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().