Crustal seismic velocity responds to a magmatic intrusion and seasonal loading in Iceland's Northern Volcanic Zone. ...
Seismic noise interferometry is an exciting technique for studying volcanoes, providing a continuous measurement of seismic velocity changes (dv/v), which are sensitive to magmatic processes that affect the surrounding crust. However, understanding the exact mechanisms causing changes in dv/v is oft...
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American Association for the Advancement of Science (AAAS)
2019
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ftdatacite:10.17863/cam.44925 2024-02-27T08:41:59+00:00 Crustal seismic velocity responds to a magmatic intrusion and seasonal loading in Iceland's Northern Volcanic Zone. ... Donaldson, C Winder, T Caudron, C White, RS 2019 https://dx.doi.org/10.17863/cam.44925 https://www.repository.cam.ac.uk/handle/1810/297868 en eng American Association for the Advancement of Science (AAAS) 37 Earth Sciences 3705 Geology 3706 Geophysics article-journal ScholarlyArticle JournalArticle Article 2019 ftdatacite https://doi.org/10.17863/cam.44925 2024-02-01T14:59:36Z Seismic noise interferometry is an exciting technique for studying volcanoes, providing a continuous measurement of seismic velocity changes (dv/v), which are sensitive to magmatic processes that affect the surrounding crust. However, understanding the exact mechanisms causing changes in dv/v is often difficult. We present dv/v measurements over 10 years in central Iceland, measured using single-station cross-component correlation functions from 51 instruments across a range of frequency bands. We observe a linear correlation between changes in dv/v and volumetric strain at stations in regions of both compression and dilatation associated with the 2014 Bárðarbunga-Holuhraun dike intrusion. Furthermore, a clear seasonal cycle in dv/v is modeled as resulting from elastic and poroelastic responses to changing snow thickness, atmospheric pressure, and groundwater level. This study comprehensively explains variations in dv/v arising from diverse crustal stresses and highlights the importance of deformation ... Article in Journal/Newspaper Iceland DataCite Metadata Store (German National Library of Science and Technology) Holuhraun ENVELOPE(-16.831,-16.831,64.852,64.852) |
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Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
37 Earth Sciences 3705 Geology 3706 Geophysics |
spellingShingle |
37 Earth Sciences 3705 Geology 3706 Geophysics Donaldson, C Winder, T Caudron, C White, RS Crustal seismic velocity responds to a magmatic intrusion and seasonal loading in Iceland's Northern Volcanic Zone. ... |
topic_facet |
37 Earth Sciences 3705 Geology 3706 Geophysics |
description |
Seismic noise interferometry is an exciting technique for studying volcanoes, providing a continuous measurement of seismic velocity changes (dv/v), which are sensitive to magmatic processes that affect the surrounding crust. However, understanding the exact mechanisms causing changes in dv/v is often difficult. We present dv/v measurements over 10 years in central Iceland, measured using single-station cross-component correlation functions from 51 instruments across a range of frequency bands. We observe a linear correlation between changes in dv/v and volumetric strain at stations in regions of both compression and dilatation associated with the 2014 Bárðarbunga-Holuhraun dike intrusion. Furthermore, a clear seasonal cycle in dv/v is modeled as resulting from elastic and poroelastic responses to changing snow thickness, atmospheric pressure, and groundwater level. This study comprehensively explains variations in dv/v arising from diverse crustal stresses and highlights the importance of deformation ... |
format |
Article in Journal/Newspaper |
author |
Donaldson, C Winder, T Caudron, C White, RS |
author_facet |
Donaldson, C Winder, T Caudron, C White, RS |
author_sort |
Donaldson, C |
title |
Crustal seismic velocity responds to a magmatic intrusion and seasonal loading in Iceland's Northern Volcanic Zone. ... |
title_short |
Crustal seismic velocity responds to a magmatic intrusion and seasonal loading in Iceland's Northern Volcanic Zone. ... |
title_full |
Crustal seismic velocity responds to a magmatic intrusion and seasonal loading in Iceland's Northern Volcanic Zone. ... |
title_fullStr |
Crustal seismic velocity responds to a magmatic intrusion and seasonal loading in Iceland's Northern Volcanic Zone. ... |
title_full_unstemmed |
Crustal seismic velocity responds to a magmatic intrusion and seasonal loading in Iceland's Northern Volcanic Zone. ... |
title_sort |
crustal seismic velocity responds to a magmatic intrusion and seasonal loading in iceland's northern volcanic zone. ... |
publisher |
American Association for the Advancement of Science (AAAS) |
publishDate |
2019 |
url |
https://dx.doi.org/10.17863/cam.44925 https://www.repository.cam.ac.uk/handle/1810/297868 |
long_lat |
ENVELOPE(-16.831,-16.831,64.852,64.852) |
geographic |
Holuhraun |
geographic_facet |
Holuhraun |
genre |
Iceland |
genre_facet |
Iceland |
op_doi |
https://doi.org/10.17863/cam.44925 |
_version_ |
1792049363572228096 |