Lateglacial cryptotephra detected within clay varves in Östergötland, south-east Sweden

Alison MacLeod, Lars Brunnberg, Stefan Wastegård, Tiit Hang, Ian Matthews

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Here we present a 710-year-long floating varve record from south-east Sweden. Tephra analyses confirm the presence of the rhyolitic Vedde Ash preserved within two consecutive varve years, confirming the Younger Dryas age of the varve series. This permits, for the first time, direct correlation of Swedish varved clay with other records of equivalent resolution which also preserve the Vedde Ash and demonstrates that the potential exists to independently date the Swedish Timescale. This discovery will allow direct comparison of rates, timing and duration of key climatic events across Europe and the North Atlantic region in records of equivalent resolution.
Original languageEnglish
Pages (from-to)605-609
Number of pages10
JournalJournal of Quaternary Science
Issue number7
Early online date15 Oct 2014
Publication statusPublished - 15 Oct 2014


  • Sweden
  • Younger Dryas
  • varves
  • tephra
  • Vedde ash

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