Block modeling of crustal deformation in Tierra del Fuego from GNSS velocities

Autores
Mendoza, Luciano Pedro Oscar; Richter, Andreas Jorg; Fritsche, M.; Hormaechea, José Luis; Perdomo, Raul Anibal; Dietrich, Roque Carlos
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The Tierra del Fuego (TDF) main island is divided by a major transform boundary between the South America and Scotia tectonic plates. Using a block model, we infer slip rates, locking depths and inclinations of active faults in TDF from inversion of site velocities derived from Global Navigation Satellite System observations. We use interseismic velocities from 48 sites, obtained from field measurements spanning 20 years. Euler vectors consistent with a simple seismic cycle are estimated for each block. In addition, we introduce far-field information into the modeling by applying constraints on Euler vectors of major tectonic plates. The difference between model and observed surface deformation near the Magallanes Fagnano Fault System (MFS) is reduced by considering finite dip in the forward model. For this tectonic boundary global plate circuits models predict relative movements between 7 and 9 mm/yr, while our regional model indicates that a strike-slip rate of 5.9 ± 0.2 mm/yr is accommodated across the MFS. Our results indicate faults dipping 66+6-4° southward, locked to a depth of 11+5-5 km, which are consistent with geological models for the MFS. However, normal slip also dominates the fault perpendicular motion throughout the eastern MFS, with a maximum rate along the Fagnano Lake.
Fil: Mendoza, Luciano Pedro Oscar. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Departamento de Astrometría; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Richter, Andreas Jorg. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Departamento de Astrometría; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Fritsche, M.. Technische Universitaet Dresden; Alemania
Fil: Hormaechea, José Luis. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Departamento de Astrometría; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Perdomo, Raul Anibal. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Departamento de Astrometría; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Dietrich, Roque Carlos. Technische Universitaet Dresden; Alemania
Materia
Interseismic deformation
GNSS velocities
Continental transform boundary
Tierra del Fuego
Magallanes-Fagnano Fault System
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/127024
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/127024
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Block modeling of crustal deformation in Tierra del Fuego from GNSS velocitiesMendoza, Luciano Pedro OscarRichter, Andreas JorgFritsche, M.Hormaechea, José LuisPerdomo, Raul AnibalDietrich, Roque CarlosInterseismic deformationGNSS velocitiesContinental transform boundaryTierra del FuegoMagallanes-Fagnano Fault Systemhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The Tierra del Fuego (TDF) main island is divided by a major transform boundary between the South America and Scotia tectonic plates. Using a block model, we infer slip rates, locking depths and inclinations of active faults in TDF from inversion of site velocities derived from Global Navigation Satellite System observations. We use interseismic velocities from 48 sites, obtained from field measurements spanning 20 years. Euler vectors consistent with a simple seismic cycle are estimated for each block. In addition, we introduce far-field information into the modeling by applying constraints on Euler vectors of major tectonic plates. The difference between model and observed surface deformation near the Magallanes Fagnano Fault System (MFS) is reduced by considering finite dip in the forward model. For this tectonic boundary global plate circuits models predict relative movements between 7 and 9 mm/yr, while our regional model indicates that a strike-slip rate of 5.9 ± 0.2 mm/yr is accommodated across the MFS. Our results indicate faults dipping 66+6-4° southward, locked to a depth of 11+5-5 km, which are consistent with geological models for the MFS. However, normal slip also dominates the fault perpendicular motion throughout the eastern MFS, with a maximum rate along the Fagnano Lake.Fil: Mendoza, Luciano Pedro Oscar. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Departamento de Astrometría; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; ArgentinaFil: Richter, Andreas Jorg. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Departamento de Astrometría; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; ArgentinaFil: Fritsche, M.. Technische Universitaet Dresden; AlemaniaFil: Hormaechea, José Luis. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Departamento de Astrometría; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; ArgentinaFil: Perdomo, Raul Anibal. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Departamento de Astrometría; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; ArgentinaFil: Dietrich, Roque Carlos. Technische Universitaet Dresden; AlemaniaElsevier Science2015-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/127024Mendoza, Luciano Pedro Oscar; Richter, Andreas Jorg; Fritsche, M.; Hormaechea, José Luis; Perdomo, Raul Anibal; et al.; Block modeling of crustal deformation in Tierra del Fuego from GNSS velocities; Elsevier Science; Tectonophysics; 651-652; 3-2015; 58-650040-1951CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0040195115001900info:eu-repo/semantics/altIdentifier/doi/10.1016/j.tecto.2015.03.013info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:33:21Zoai:ri.conicet.gov.ar:11336/127024instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:33:21.889CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Block modeling of crustal deformation in Tierra del Fuego from GNSS velocities
title Block modeling of crustal deformation in Tierra del Fuego from GNSS velocities
spellingShingle Block modeling of crustal deformation in Tierra del Fuego from GNSS velocities
Mendoza, Luciano Pedro Oscar
Interseismic deformation
GNSS velocities
Continental transform boundary
Tierra del Fuego
Magallanes-Fagnano Fault System
title_short Block modeling of crustal deformation in Tierra del Fuego from GNSS velocities
title_full Block modeling of crustal deformation in Tierra del Fuego from GNSS velocities
title_fullStr Block modeling of crustal deformation in Tierra del Fuego from GNSS velocities
title_full_unstemmed Block modeling of crustal deformation in Tierra del Fuego from GNSS velocities
title_sort Block modeling of crustal deformation in Tierra del Fuego from GNSS velocities
dc.creator.none.fl_str_mv Mendoza, Luciano Pedro Oscar
Richter, Andreas Jorg
Fritsche, M.
Hormaechea, José Luis
Perdomo, Raul Anibal
Dietrich, Roque Carlos
author Mendoza, Luciano Pedro Oscar
author_facet Mendoza, Luciano Pedro Oscar
Richter, Andreas Jorg
Fritsche, M.
Hormaechea, José Luis
Perdomo, Raul Anibal
Dietrich, Roque Carlos
author_role author
author2 Richter, Andreas Jorg
Fritsche, M.
Hormaechea, José Luis
Perdomo, Raul Anibal
Dietrich, Roque Carlos
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Interseismic deformation
GNSS velocities
Continental transform boundary
Tierra del Fuego
Magallanes-Fagnano Fault System
topic Interseismic deformation
GNSS velocities
Continental transform boundary
Tierra del Fuego
Magallanes-Fagnano Fault System
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The Tierra del Fuego (TDF) main island is divided by a major transform boundary between the South America and Scotia tectonic plates. Using a block model, we infer slip rates, locking depths and inclinations of active faults in TDF from inversion of site velocities derived from Global Navigation Satellite System observations. We use interseismic velocities from 48 sites, obtained from field measurements spanning 20 years. Euler vectors consistent with a simple seismic cycle are estimated for each block. In addition, we introduce far-field information into the modeling by applying constraints on Euler vectors of major tectonic plates. The difference between model and observed surface deformation near the Magallanes Fagnano Fault System (MFS) is reduced by considering finite dip in the forward model. For this tectonic boundary global plate circuits models predict relative movements between 7 and 9 mm/yr, while our regional model indicates that a strike-slip rate of 5.9 ± 0.2 mm/yr is accommodated across the MFS. Our results indicate faults dipping 66+6-4° southward, locked to a depth of 11+5-5 km, which are consistent with geological models for the MFS. However, normal slip also dominates the fault perpendicular motion throughout the eastern MFS, with a maximum rate along the Fagnano Lake.
Fil: Mendoza, Luciano Pedro Oscar. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Departamento de Astrometría; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Richter, Andreas Jorg. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Departamento de Astrometría; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Fritsche, M.. Technische Universitaet Dresden; Alemania
Fil: Hormaechea, José Luis. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Departamento de Astrometría; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Perdomo, Raul Anibal. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Departamento de Astrometría; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Dietrich, Roque Carlos. Technische Universitaet Dresden; Alemania
description The Tierra del Fuego (TDF) main island is divided by a major transform boundary between the South America and Scotia tectonic plates. Using a block model, we infer slip rates, locking depths and inclinations of active faults in TDF from inversion of site velocities derived from Global Navigation Satellite System observations. We use interseismic velocities from 48 sites, obtained from field measurements spanning 20 years. Euler vectors consistent with a simple seismic cycle are estimated for each block. In addition, we introduce far-field information into the modeling by applying constraints on Euler vectors of major tectonic plates. The difference between model and observed surface deformation near the Magallanes Fagnano Fault System (MFS) is reduced by considering finite dip in the forward model. For this tectonic boundary global plate circuits models predict relative movements between 7 and 9 mm/yr, while our regional model indicates that a strike-slip rate of 5.9 ± 0.2 mm/yr is accommodated across the MFS. Our results indicate faults dipping 66+6-4° southward, locked to a depth of 11+5-5 km, which are consistent with geological models for the MFS. However, normal slip also dominates the fault perpendicular motion throughout the eastern MFS, with a maximum rate along the Fagnano Lake.
publishDate 2015
dc.date.none.fl_str_mv 2015-03
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/127024
Mendoza, Luciano Pedro Oscar; Richter, Andreas Jorg; Fritsche, M.; Hormaechea, José Luis; Perdomo, Raul Anibal; et al.; Block modeling of crustal deformation in Tierra del Fuego from GNSS velocities; Elsevier Science; Tectonophysics; 651-652; 3-2015; 58-65
0040-1951
CONICET Digital
CONICET
url http://hdl.handle.net/11336/127024
identifier_str_mv Mendoza, Luciano Pedro Oscar; Richter, Andreas Jorg; Fritsche, M.; Hormaechea, José Luis; Perdomo, Raul Anibal; et al.; Block modeling of crustal deformation in Tierra del Fuego from GNSS velocities; Elsevier Science; Tectonophysics; 651-652; 3-2015; 58-65
0040-1951
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0040195115001900
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.tecto.2015.03.013
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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