The influence of vegetation cover on the grain-size distributions and thicknesses of two Icelandic tephra layers
Grain-size distributions and thicknesses of tephra layers are used to reconstruct characteristics, dynamics, and hazards of explosive volcanic eruptions, but the extent to which the preservation of tephra is influenced by depositional environments is unclear. This paper analyses grain-size distribut...
Published in: | Volcanica |
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2022
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Online Access: | https://risweb.st-andrews.ac.uk/portal/en/researchoutput/the-influence-of-vegetation-cover-on-the-grainsize-distributions-and-thicknesses-of-two-icelandic-tephra-layers(d3d03cc6-4dd0-4625-b30c-459c2223fd8a).html https://doi.org/10.30909/vol.05.02.227248 https://research-repository.st-andrews.ac.uk/bitstream/10023/25854/1/Morison_2022_Volcanica_Vegetationcover_CC.pdf |
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ftunstandrewcris:oai:risweb.st-andrews.ac.uk:publications/d3d03cc6-4dd0-4625-b30c-459c2223fd8a 2023-05-15T16:09:24+02:00 The influence of vegetation cover on the grain-size distributions and thicknesses of two Icelandic tephra layers Morison, Conner Streeter, Richard 2022-08-04 application/pdf https://risweb.st-andrews.ac.uk/portal/en/researchoutput/the-influence-of-vegetation-cover-on-the-grainsize-distributions-and-thicknesses-of-two-icelandic-tephra-layers(d3d03cc6-4dd0-4625-b30c-459c2223fd8a).html https://doi.org/10.30909/vol.05.02.227248 https://research-repository.st-andrews.ac.uk/bitstream/10023/25854/1/Morison_2022_Volcanica_Vegetationcover_CC.pdf eng eng info:eu-repo/semantics/openAccess Morison , C & Streeter , R 2022 , ' The influence of vegetation cover on the grain-size distributions and thicknesses of two Icelandic tephra layers ' , Volcanica , vol. 5 , no. 2 , pp. 227-248 . https://doi.org/10.30909/vol.05.02.227248 Eyjafjallajökull Grímsvötn Volcanic ash Granulometry Eruption source parameters Remobilisation Tephrovolcanology article 2022 ftunstandrewcris https://doi.org/10.30909/vol.05.02.227248 2022-10-31T06:44:09Z Grain-size distributions and thicknesses of tephra layers are used to reconstruct characteristics, dynamics, and hazards of explosive volcanic eruptions, but the extent to which the preservation of tephra is influenced by depositional environments is unclear. This paper analyses grain-size distributions and thicknesses of tephra layers produced by the Eyjafjallajökull (2010) and Grímsvötn (2011) eruptions. We collected 110 tephra samples and layer thickness measurements from 86 sites at two locations in southern Iceland. Areas of different vegetation cover have varying capacities to affect rates of tephra erosion, retain fallout, or capture remobilised tephra. The Grímsvötn tephra was somewhat coarser-grained and thicker in areas of birch woodland than in adjacent moss heath, but no comparable differences in the Eyjafjallajökull tephra were observed. The spatial variability (over tens of metres) of median particle-size and layer thickness is low, providing confidence that relatively few samples and measurements may be required to capture fallout characteristics. Article in Journal/Newspaper Eyjafjallajökull Iceland University of St Andrews: Research Portal Volcanica 5 2 227 248 |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
topic |
Eyjafjallajökull Grímsvötn Volcanic ash Granulometry Eruption source parameters Remobilisation Tephrovolcanology |
spellingShingle |
Eyjafjallajökull Grímsvötn Volcanic ash Granulometry Eruption source parameters Remobilisation Tephrovolcanology Morison, Conner Streeter, Richard The influence of vegetation cover on the grain-size distributions and thicknesses of two Icelandic tephra layers |
topic_facet |
Eyjafjallajökull Grímsvötn Volcanic ash Granulometry Eruption source parameters Remobilisation Tephrovolcanology |
description |
Grain-size distributions and thicknesses of tephra layers are used to reconstruct characteristics, dynamics, and hazards of explosive volcanic eruptions, but the extent to which the preservation of tephra is influenced by depositional environments is unclear. This paper analyses grain-size distributions and thicknesses of tephra layers produced by the Eyjafjallajökull (2010) and Grímsvötn (2011) eruptions. We collected 110 tephra samples and layer thickness measurements from 86 sites at two locations in southern Iceland. Areas of different vegetation cover have varying capacities to affect rates of tephra erosion, retain fallout, or capture remobilised tephra. The Grímsvötn tephra was somewhat coarser-grained and thicker in areas of birch woodland than in adjacent moss heath, but no comparable differences in the Eyjafjallajökull tephra were observed. The spatial variability (over tens of metres) of median particle-size and layer thickness is low, providing confidence that relatively few samples and measurements may be required to capture fallout characteristics. |
format |
Article in Journal/Newspaper |
author |
Morison, Conner Streeter, Richard |
author_facet |
Morison, Conner Streeter, Richard |
author_sort |
Morison, Conner |
title |
The influence of vegetation cover on the grain-size distributions and thicknesses of two Icelandic tephra layers |
title_short |
The influence of vegetation cover on the grain-size distributions and thicknesses of two Icelandic tephra layers |
title_full |
The influence of vegetation cover on the grain-size distributions and thicknesses of two Icelandic tephra layers |
title_fullStr |
The influence of vegetation cover on the grain-size distributions and thicknesses of two Icelandic tephra layers |
title_full_unstemmed |
The influence of vegetation cover on the grain-size distributions and thicknesses of two Icelandic tephra layers |
title_sort |
influence of vegetation cover on the grain-size distributions and thicknesses of two icelandic tephra layers |
publishDate |
2022 |
url |
https://risweb.st-andrews.ac.uk/portal/en/researchoutput/the-influence-of-vegetation-cover-on-the-grainsize-distributions-and-thicknesses-of-two-icelandic-tephra-layers(d3d03cc6-4dd0-4625-b30c-459c2223fd8a).html https://doi.org/10.30909/vol.05.02.227248 https://research-repository.st-andrews.ac.uk/bitstream/10023/25854/1/Morison_2022_Volcanica_Vegetationcover_CC.pdf |
genre |
Eyjafjallajökull Iceland |
genre_facet |
Eyjafjallajökull Iceland |
op_source |
Morison , C & Streeter , R 2022 , ' The influence of vegetation cover on the grain-size distributions and thicknesses of two Icelandic tephra layers ' , Volcanica , vol. 5 , no. 2 , pp. 227-248 . https://doi.org/10.30909/vol.05.02.227248 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.30909/vol.05.02.227248 |
container_title |
Volcanica |
container_volume |
5 |
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2 |
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227 |
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248 |
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1766405299674021888 |