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Cosmogenic radionuclides reveal an extreme solar particle storm near a solar minimum 9125 years BP

Paleari, Chiara I. (author)
Lund University,Lunds universitet,MERGE: ModElling the Regional and Global Earth system,Centrum för miljö- och klimatvetenskap (CEC),Naturvetenskapliga fakulteten,Kvartärgeologi,Geologiska institutionen,Centre for Environmental and Climate Science (CEC),Faculty of Science,Quaternary Sciences,Department of Geology
Mekhaldi, Florian (author)
Lund University,Lunds universitet,MERGE: ModElling the Regional and Global Earth system,Centrum för miljö- och klimatvetenskap (CEC),Naturvetenskapliga fakulteten,Kvartärgeologi,Geologiska institutionen,Centre for Environmental and Climate Science (CEC),Faculty of Science,Quaternary Sciences,Department of Geology
Adolphi, Florian (author)
Lund University,Lunds universitet,MERGE: ModElling the Regional and Global Earth system,Centrum för miljö- och klimatvetenskap (CEC),Naturvetenskapliga fakulteten,Kvartärgeologi,Geologiska institutionen,Centre for Environmental and Climate Science (CEC),Faculty of Science,Quaternary Sciences,Department of Geology
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Christl, Marcus (author)
ETH Zürich
Vockenhuber, Christof (author)
ETH Zürich
Gautschi, Philip (author)
ETH Zürich
Beer, Jürg (author)
Eawag: Swiss Federal Institute of Aquatic Science and Technology
Brehm, Nicolas (author)
ETH Zürich
Erhardt, Tobias (author)
University of Bern,Alfred-Wegener Institute, Helmholtz Center for Polar and Marine Research, Bremerhaven
Synal, Hans Arno (author)
ETH Zürich
Wacker, Lukas (author)
ETH Zürich
Wilhelms, Frank (author)
Alfred-Wegener Institute, Helmholtz Center for Polar and Marine Research, Bremerhaven,University of Göttingen
Muscheler, Raimund (author)
Lund University,Lunds universitet,MERGE: ModElling the Regional and Global Earth system,Centrum för miljö- och klimatvetenskap (CEC),Naturvetenskapliga fakulteten,Kvartärgeologi,Geologiska institutionen,Centre for Environmental and Climate Science (CEC),Faculty of Science,Quaternary Sciences,Department of Geology
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 (creator_code:org_t)
2022-01-11
2022
English.
In: Nature Communications. - : Springer Science and Business Media LLC. - 2041-1723. ; 13:1
Related links:
http://dx.doi.org/10... (free)
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https://www.nature.c...
https://lup.lub.lu.s...
https://doi.org/10.1...
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  • Journal article (peer-reviewed)
Abstract Subject headings
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  • During solar storms, the Sun expels large amounts of energetic particles (SEP) that can react with the Earth’s atmospheric constituents and produce cosmogenic radionuclides such as 14C, 10Be and 36Cl. Here we present 10Be and 36Cl data measured in ice cores from Greenland and Antarctica. The data consistently show one of the largest 10Be and 36Cl production peaks detected so far, most likely produced by an extreme SEP event that hit Earth 9125 years BP (before present, i.e., before 1950 CE), i.e., 7176 BCE. Using the 36Cl/10Be ratio, we demonstrate that this event was characterized by a very hard energy spectrum and was possibly up to two orders of magnitude larger than any SEP event during the instrumental period. Furthermore, we provide 10Be-based evidence that, contrary to expectations, the SEP event occurred near a solar minimum.

Subject headings

NATURVETENSKAP  -- Geovetenskap och miljövetenskap -- Geologi (hsv//swe)
NATURAL SCIENCES  -- Earth and Related Environmental Sciences -- Geology (hsv//eng)

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