Direct correlation of European palaeoenvironmental records using tephra – Niels Bohr Institute - University of Copenhagen

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Direct correlation of European palaeoenvironmental records using tephra

Christine Lane
Research Laboratory for Archaeology and the History of Art, University of Oxford
and
Simon Blockley
Department of Geography, Royal Holloway, University of London

Abstract
Explosive volcanic eruptions can disperse tephra over thousands of kilometres. The rapid deposition and subsequent burial of tephra layers widespread isochronous event horizons, which can be identified and correlated based on their geochemical composition. Tephra isochrons are used to establish unequivocal stratigraphical and temporal relationships between palaeoenvironmental archives. A lattice of tephra layers is established for Last Glacial to Interglacial Transition (LGIT) records across Europe, which offers a robust framework for evaluation of the pace of palaeoclimate forcing of environmental changes over continental distances.