Crustal structure beneath the Faroe Islands from teleseismic receiver functions

We use teleseismic receiver function analysis to constrain the crustal structure beneath the Faroe Islands on the northwest European volcanic continental margin. A cluster of 45 broad-band seismometers on the Glyvursnes peninsula, Streymoy Island recorded 10 teleseismic events ranging in magnitude f...

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Published in:Geophysical Journal International
Main Authors: Harland, K. E., White, R. S., Soosalu, H.
Format: Article in Journal/Newspaper
Language:English
Published: 2009
Subjects:
Online Access:http://eprints.esc.cam.ac.uk/347/
http://eprints.esc.cam.ac.uk/347/1/Harland_White_Soosalu_Geophys_J_Int_177_115_2009.pdf
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spelling ftucambridgeesc:oai:eprints.esc.cam.ac.uk:347 2023-05-15T16:10:36+02:00 Crustal structure beneath the Faroe Islands from teleseismic receiver functions Harland, K. E. White, R. S. Soosalu, H. 2009-02 application/pdf http://eprints.esc.cam.ac.uk/347/ http://eprints.esc.cam.ac.uk/347/1/Harland_White_Soosalu_Geophys_J_Int_177_115_2009.pdf en eng http://eprints.esc.cam.ac.uk/347/1/Harland_White_Soosalu_Geophys_J_Int_177_115_2009.pdf Harland, K. E. and White, R. S. and Soosalu, H. (2009) Crustal structure beneath the Faroe Islands from teleseismic receiver functions. Geophysical Journal International, 177 (1). pp. 115-124. DOI https://doi.org/10.1111/j.1365-246X.2008.04018.x <https://doi.org/10.1111/j.1365-246X.2008.04018.x> 05 - Petrology - Igneous Metamorphic and Volcanic Studies 02 - Geodynamics Geophysics and Tectonics Article PeerReviewed 2009 ftucambridgeesc https://doi.org/10.1111/j.1365-246X.2008.04018.x 2020-08-27T18:08:30Z We use teleseismic receiver function analysis to constrain the crustal structure beneath the Faroe Islands on the northwest European volcanic continental margin. A cluster of 45 broad-band seismometers on the Glyvursnes peninsula, Streymoy Island recorded 10 teleseismic events ranging in magnitude from 6.1 to −8.0 during July–December 2003. Receiver functions show a clear Ps peak for the first time in this region. The depth of the converting boundary is estimated as 29–32 km using forward and inverse modelling and thickness versus VP/VS ratio stacking techniques. Modelling experiments suggest that this estimate may represent the conversion from a region of high-velocity lower crust rather than the crust–mantle transition at the Moho. The best-fit modelling results were achieved with a gradational high-velocity region at least 6 km thick in the lower crust. This is interpreted as due to the emplacement of sills into pre-existing continental crust rather than the simple underplating of a block of high velocity igneous material at its base. Article in Journal/Newspaper Faroe Islands Streymoy University of Cambridge, Department of Earth Sciences: ESC Publications Faroe Islands Glyvursnes ENVELOPE(-6.735,-6.735,61.981,61.981) Streymoy ENVELOPE(-7.000,-7.000,62.133,62.133) Geophysical Journal International 177 1 115 124
institution Open Polar
collection University of Cambridge, Department of Earth Sciences: ESC Publications
op_collection_id ftucambridgeesc
language English
topic 05 - Petrology - Igneous
Metamorphic and Volcanic Studies
02 - Geodynamics
Geophysics and Tectonics
spellingShingle 05 - Petrology - Igneous
Metamorphic and Volcanic Studies
02 - Geodynamics
Geophysics and Tectonics
Harland, K. E.
White, R. S.
Soosalu, H.
Crustal structure beneath the Faroe Islands from teleseismic receiver functions
topic_facet 05 - Petrology - Igneous
Metamorphic and Volcanic Studies
02 - Geodynamics
Geophysics and Tectonics
description We use teleseismic receiver function analysis to constrain the crustal structure beneath the Faroe Islands on the northwest European volcanic continental margin. A cluster of 45 broad-band seismometers on the Glyvursnes peninsula, Streymoy Island recorded 10 teleseismic events ranging in magnitude from 6.1 to −8.0 during July–December 2003. Receiver functions show a clear Ps peak for the first time in this region. The depth of the converting boundary is estimated as 29–32 km using forward and inverse modelling and thickness versus VP/VS ratio stacking techniques. Modelling experiments suggest that this estimate may represent the conversion from a region of high-velocity lower crust rather than the crust–mantle transition at the Moho. The best-fit modelling results were achieved with a gradational high-velocity region at least 6 km thick in the lower crust. This is interpreted as due to the emplacement of sills into pre-existing continental crust rather than the simple underplating of a block of high velocity igneous material at its base.
format Article in Journal/Newspaper
author Harland, K. E.
White, R. S.
Soosalu, H.
author_facet Harland, K. E.
White, R. S.
Soosalu, H.
author_sort Harland, K. E.
title Crustal structure beneath the Faroe Islands from teleseismic receiver functions
title_short Crustal structure beneath the Faroe Islands from teleseismic receiver functions
title_full Crustal structure beneath the Faroe Islands from teleseismic receiver functions
title_fullStr Crustal structure beneath the Faroe Islands from teleseismic receiver functions
title_full_unstemmed Crustal structure beneath the Faroe Islands from teleseismic receiver functions
title_sort crustal structure beneath the faroe islands from teleseismic receiver functions
publishDate 2009
url http://eprints.esc.cam.ac.uk/347/
http://eprints.esc.cam.ac.uk/347/1/Harland_White_Soosalu_Geophys_J_Int_177_115_2009.pdf
long_lat ENVELOPE(-6.735,-6.735,61.981,61.981)
ENVELOPE(-7.000,-7.000,62.133,62.133)
geographic Faroe Islands
Glyvursnes
Streymoy
geographic_facet Faroe Islands
Glyvursnes
Streymoy
genre Faroe Islands
Streymoy
genre_facet Faroe Islands
Streymoy
op_relation http://eprints.esc.cam.ac.uk/347/1/Harland_White_Soosalu_Geophys_J_Int_177_115_2009.pdf
Harland, K. E. and White, R. S. and Soosalu, H. (2009) Crustal structure beneath the Faroe Islands from teleseismic receiver functions. Geophysical Journal International, 177 (1). pp. 115-124. DOI https://doi.org/10.1111/j.1365-246X.2008.04018.x <https://doi.org/10.1111/j.1365-246X.2008.04018.x>
op_doi https://doi.org/10.1111/j.1365-246X.2008.04018.x
container_title Geophysical Journal International
container_volume 177
container_issue 1
container_start_page 115
op_container_end_page 124
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