Show simple item record

Files in this item


Item metadata

dc.contributor.authorWatson, E. J.
dc.contributor.authorSwindles, G. T.
dc.contributor.authorStevenson, J. A.
dc.contributor.authorSavov, I.
dc.contributor.authorLawson, I. T.
dc.identifier.citationWatson , E J , Swindles , G T , Stevenson , J A , Savov , I & Lawson , I T 2016 , ' The transport of Icelandic volcanic ash: insights from northern European cryptotephra records ' , Journal of Geophysical Research: Solid Earth , vol. 121 , no. 10 , pp. 7177-7192 .
dc.identifier.otherPURE: 248112978
dc.identifier.otherPURE UUID: b0d17bc2-cb1f-4584-ae26-5e318d01eeac
dc.identifier.otherScopus: 84995676747
dc.identifier.otherWOS: 000388441800012
dc.identifier.otherORCID: /0000-0002-3547-2425/work/75996913
dc.descriptionThis research was undertaken while Elizabeth Watson held a NERC-funded Doctoral Training grant (NE/K500847/1).en
dc.description.abstractFine ash produced during volcanic eruptions can be dispersed over a vast area, where it poses a threat to aviation, human health, and infrastructure. We analyze the particle size distributions, geochemistry, and glass shard morphology of 19 distal (>1000 km from source) volcanic ash deposits distributed across northern Europe, many geochemically linked to a specific volcanic eruption. The largest glass shards in the cryptotephra deposits were 250 µm (longest axis basis). For the first time, we examine the replicability and reliability of glass shard size measurements from peatland and lake archives. We identify no consistent trend in the vertical sorting of glass shards by size within lake and peat sediments. Measuring the sizes of 100 shards from the vertical sample of peak shard concentration is generally sufficient to ascertain the median shard size for a cryptotephra deposit. Lakes and peatlands in close proximity contain cryptotephras with significantly different median shard size in four out of five instances. The trend toward a greater amount of larger shards in lakes may have implications for the selection of distal sites to constrain the maximum glass shard size for modeling studies. Although the 95th percentile values for shard size generally indicate a loss of larger shards from deposits at sites farther from the volcano, due to the dynamic nature of the controls on tephra transport even during the course of one eruption there is no simple relationship between median shard size and transport distance.
dc.relation.ispartofJournal of Geophysical Research: Solid Earthen
dc.rights© 2016. The Authors. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.en
dc.subjectnorthern Europeen
dc.subjectprobabilistic modelingen
dc.subjectshard sizeen
dc.subjecttravel distanceen
dc.subjectGB Physical geographyen
dc.subjectGE Environmental Sciencesen
dc.subjectAquatic Scienceen
dc.subjectWater Science and Technologyen
dc.subjectSoil Scienceen
dc.subjectGeochemistry and Petrologyen
dc.subjectEarth-Surface Processesen
dc.subjectAtmospheric Scienceen
dc.subjectEarth and Planetary Sciences (miscellaneous)en
dc.subjectSpace and Planetary Scienceen
dc.titleThe transport of Icelandic volcanic ash: insights from northern European cryptotephra recordsen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews. Geography & Sustainable Developmenten
dc.contributor.institutionUniversity of St Andrews. Bell-Edwards Geographic Data Instituteen
dc.description.statusPeer revieweden

This item appears in the following Collection(s)

Show simple item record