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Comment on "Radiation History of Fossil Meteorites from Sweden" by V.A. Alexeev (2010), Solar System Research, 44, 311-319

  • R. Wieler
  • Carl Alwmark
  • P. R. Heck
  • M. M. M. Meier
  • Birger Schmitz
Publishing year: 2011
Language: English
Pages: 459-461
Publication/Series: Solar System Research
Volume: 45
Issue: 5
Document type: Journal article (comment)
Publisher: MAIK Nauka/Interperiodica

Abstract english

We dispute the claim by Alexeev (2010) that the numerous fossil meteorites found in mid-Ordovician sediments in southern Sweden can be explained by a single large meteorite shower some 470 million years ago, and-in particular-that the reported variable cosmic ray exposure ages derived from cosmogenic Ne-21 in chromite grains extracted from the fossil meteorites actually reflect variable contributions of nucleogenic Ne-21 instead.


  • Geology


  • ISSN: 1608-3423
Carl Alwmark
E-mail: carl [dot] alwmark [at] geol [dot] lu [dot] se

Senior lecturer

Lithosphere and Biosphere Science

+46 46 222 78 71


Sölvegatan 12, Lund