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...
Published in: | Geophysical Journal International |
---|---|
Main Authors: | , , |
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 |
id |
ftucambridgeesc:oai:eprints.esc.cam.ac.uk:347 |
---|---|
record_format |
openpolar |
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 |
_version_ |
1765995765081047040 |