Domains of Archean mantle lithosphere deciphered by seismic anisotropy – inferences from the LAPNET array in northern Fennoscandia
An international LAPNET array (2007–2009, http://www.oulu.fi/sgo-oty/lapnet) of the POLENET/LAPNET sub-project of the POLENET-IPY consortium, related to seismic and geodetic studies in the Arctic regions, consisted of about 60 broadband seismic stations located on the territory of northern Finland a...
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00026429 2023-05-15T15:05:05+02:00 Domains of Archean mantle lithosphere deciphered by seismic anisotropy – inferences from the LAPNET array in northern Fennoscandia Plomerová, J. Vecsey, L. Babuška, V. LAPNET Working Group 2011-12 electronic https://doi.org/10.5194/se-2-303-2011 https://noa.gwlb.de/receive/cop_mods_00026429 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00026384/se-2-303-2011.pdf https://se.copernicus.org/articles/2/303/2011/se-2-303-2011.pdf eng eng Copernicus Publications Solid Earth -- 1869-9529 https://doi.org/10.5194/se-2-303-2011 https://noa.gwlb.de/receive/cop_mods_00026429 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00026384/se-2-303-2011.pdf https://se.copernicus.org/articles/2/303/2011/se-2-303-2011.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2011 ftnonlinearchiv https://doi.org/10.5194/se-2-303-2011 2022-02-08T22:49:13Z An international LAPNET array (2007–2009, http://www.oulu.fi/sgo-oty/lapnet) of the POLENET/LAPNET sub-project of the POLENET-IPY consortium, related to seismic and geodetic studies in the Arctic regions, consisted of about 60 broadband seismic stations located on the territory of northern Finland and adjacent parts of Sweden, Norway and Russia. We analyze relative P-wave travel-time deviations evaluated for a subset of 90 teleseismic events recorded by the LAPNET array and show examples of lateral variations of shear-wave splitting to demonstrate variability of fabrics of the Archean mantle lithosphere. The initial results clearly demonstrate the Archean mantle lithosphere consists of domains with consistent fabrics reflecting fossil anisotropic structures. 3-D self-consistent anisotropic models with inclined symmetry axes accommodate two independent sets of body-wave anisotropic observations. Individual domains are delimited by boundaries (sutures), where the anisotropic parameters change. The results obtained from the LAPNET array fill a gap in structural studies of the upper mantle beneath northern Fennoscandia. Article in Journal/Newspaper Arctic Fennoscandia IPY Northern Finland Niedersächsisches Online-Archiv NOA Arctic Norway Solid Earth 2 2 303 313 |
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article Verlagsveröffentlichung Plomerová, J. Vecsey, L. Babuška, V. LAPNET Working Group Domains of Archean mantle lithosphere deciphered by seismic anisotropy – inferences from the LAPNET array in northern Fennoscandia |
topic_facet |
article Verlagsveröffentlichung |
description |
An international LAPNET array (2007–2009, http://www.oulu.fi/sgo-oty/lapnet) of the POLENET/LAPNET sub-project of the POLENET-IPY consortium, related to seismic and geodetic studies in the Arctic regions, consisted of about 60 broadband seismic stations located on the territory of northern Finland and adjacent parts of Sweden, Norway and Russia. We analyze relative P-wave travel-time deviations evaluated for a subset of 90 teleseismic events recorded by the LAPNET array and show examples of lateral variations of shear-wave splitting to demonstrate variability of fabrics of the Archean mantle lithosphere. The initial results clearly demonstrate the Archean mantle lithosphere consists of domains with consistent fabrics reflecting fossil anisotropic structures. 3-D self-consistent anisotropic models with inclined symmetry axes accommodate two independent sets of body-wave anisotropic observations. Individual domains are delimited by boundaries (sutures), where the anisotropic parameters change. The results obtained from the LAPNET array fill a gap in structural studies of the upper mantle beneath northern Fennoscandia. |
format |
Article in Journal/Newspaper |
author |
Plomerová, J. Vecsey, L. Babuška, V. LAPNET Working Group |
author_facet |
Plomerová, J. Vecsey, L. Babuška, V. LAPNET Working Group |
author_sort |
Plomerová, J. |
title |
Domains of Archean mantle lithosphere deciphered by seismic anisotropy – inferences from the LAPNET array in northern Fennoscandia |
title_short |
Domains of Archean mantle lithosphere deciphered by seismic anisotropy – inferences from the LAPNET array in northern Fennoscandia |
title_full |
Domains of Archean mantle lithosphere deciphered by seismic anisotropy – inferences from the LAPNET array in northern Fennoscandia |
title_fullStr |
Domains of Archean mantle lithosphere deciphered by seismic anisotropy – inferences from the LAPNET array in northern Fennoscandia |
title_full_unstemmed |
Domains of Archean mantle lithosphere deciphered by seismic anisotropy – inferences from the LAPNET array in northern Fennoscandia |
title_sort |
domains of archean mantle lithosphere deciphered by seismic anisotropy – inferences from the lapnet array in northern fennoscandia |
publisher |
Copernicus Publications |
publishDate |
2011 |
url |
https://doi.org/10.5194/se-2-303-2011 https://noa.gwlb.de/receive/cop_mods_00026429 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00026384/se-2-303-2011.pdf https://se.copernicus.org/articles/2/303/2011/se-2-303-2011.pdf |
geographic |
Arctic Norway |
geographic_facet |
Arctic Norway |
genre |
Arctic Fennoscandia IPY Northern Finland |
genre_facet |
Arctic Fennoscandia IPY Northern Finland |
op_relation |
Solid Earth -- 1869-9529 https://doi.org/10.5194/se-2-303-2011 https://noa.gwlb.de/receive/cop_mods_00026429 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00026384/se-2-303-2011.pdf https://se.copernicus.org/articles/2/303/2011/se-2-303-2011.pdf |
op_rights |
uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/se-2-303-2011 |
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