The Y-3 tephra: a Last Glacial stratigraphic marker for the central Mediterranean basin

G. Zanchetta*, R. Sulpizio, B. Giaccio, G. Siani, M. Paterne, S. Wulf, M. D'Orazio

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


The paper reviews the existing data on the Y-3 tephra layer, first recognised in the Ionian Sea (Mediterranean basin). The collection and collation of old and new data on distal tephra occurrences in terrestrial, marine and lacustrine successions indicate that the Y-3 layer is dispersed over a wide area of the central Mediterranean basin. The peculiar homogeneous chemical composition of this layer makes its recognition rather straightforward and permits it being distinguished from other stratigraphically adjacent tephras. The best age estimate for the Y-3 layer of ca 30-31 cal ka BP, its peculiar stratigraphic position close to the Marine Isotope Stage 3/2 transition or Heinrich Event 3 onset, as well as its wide dispersion makes this layer an important marker to link and date late Pleistocene terrestrial and marine archives of the central Mediterranean basin.

Original languageEnglish
Pages (from-to)145-154
Number of pages10
JournalJournal of Volcanology and Geothermal Research
Issue number1
Early online date14 Sept 2007
Publication statusPublished - 20 Oct 2008


  • Campanian volcanoes
  • Central Mediterranean
  • tephrochronology
  • tephrostratigraphy
  • Y-3

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