Detection of Lateglacial distal tephra layers in the Netherlands |
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| Authors: | SIWAN M DAVIES WIM Z HOEK SJOERD J P BOHNCKE J JOHN LOWE SEAN PYNE O'DONNELL CHRIS S M TURNEY |
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| Institution: |
a Department of Geography, University of Wales Swansea, Swansea, Wales, UK
b Department of Physical Geography, Universiteit Utrecht, Utrecht, The Netherlands
c Department of Quaternary Geology and Geomorphology, Faculty of Earth and Life Sciences, Vrije Universiteit, Amsterdam, The Netherlands
d Centre for Quaternary Research, Department of Geography, Royal Holloway, University of London, Egham, Surrey, UK
e GeoQuEST Research Group, School of Earth and Environmental Sciences, University of Wollongong, Wollongong, NSW, Australia |
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| Abstract: | Three distal tephra layers or cryptotephras have been detected within a sedimentary sequence from the Netherlands that spans the last glacial-interglacial transition. Geochemical analyses identify one as the Vedde Ash, which represents the southernmost discovery of this mid-Younger Dryas tephra so far. This tephra was found as a distinct horizon in three different cores sampled within the basin. The remaining two tephras have not been geochemically 'fingerprinted', partly due to low concentrations and uneven distributions of shards within the sequences sampled. Nevertheless, there is the potential for tracing these tephra layers throughout the Netherlands and into other parts of continental Europe. Accordingly, the possibilities for precise correlation of Dutch palaeoenvironmental records with other continental, marine and ice-core records from the North Atlantic region are highlighted. |
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