Along-strike segmentation in the northern Caribbean plate boundary zone (Hispaniola sector): Tectonic implications

The North American (NOAM) plate converges with the Caribbean (CARIB) plate at a rate of 20.0 ± 0.4 mm/yr. towards 254 ± 1º. Plate convergence is highly oblique (20-10º), resulting in a complex crustal boundary with along-strike segmentation, strain partitioning and microplate tectonics. We study the...

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Autores: Rodríguez Zurrunero, Álvaro, Granja Bruña, José Luis, Muñoz Martín, Alfonso, Leroy, Sylvie, Ten Brink, Uri S., Gorosabel-Araus, J.M., Gómez de la Peña, Laura, Druet Vélez, María, Carbo Gorosabel, Andrés
Formato: artículo
Fecha de publicación:2020
País:España
Recursos:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/6019
Acesso em linha:https://hdl.handle.net/20.500.14352/6019
Access Level:acceso abierto
Palavra-chave:551.4
Caribbean plate
Hispaniola
Subduction
Collision
Segmentation
Strain partitioning
Geofísica
Geodinámica
2507 Geofísica
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oai_identifier_str oai:docta.ucm.es:20.500.14352/6019
network_acronym_str ES
network_name_str España
repository_id_str
spelling Along-strike segmentation in the northern Caribbean plate boundary zone (Hispaniola sector): Tectonic implicationsRodríguez Zurrunero, ÁlvaroGranja Bruña, José LuisMuñoz Martín, AlfonsoLeroy, SylvieTen Brink, Uri S.Gorosabel-Araus, J.M.Gómez de la Peña, LauraDruet Vélez, MaríaCarbo Gorosabel, Andrés551.4Caribbean plateHispaniolaSubductionCollisionSegmentationStrain partitioningGeofísicaGeodinámica2507 Geofísica2507 GeofísicaThe North American (NOAM) plate converges with the Caribbean (CARIB) plate at a rate of 20.0 ± 0.4 mm/yr. towards 254 ± 1º. Plate convergence is highly oblique (20-10º), resulting in a complex crustal boundary with along-strike segmentation, strain partitioning and microplate tectonics. We study the oblique convergence of the NOAM and CARIB plates between southeastern Cuba to northern Puerto Rico using new swath multibeam bathymetry data and 2D multi-channel seismic profiles. The combined interpretation of marine geophysical data with the seismicity and geodetic data from public databases allow us to perform a regional scale analysis of the shallower structure, the seismotectonics and the slab geometry along the plate boundary. Due to differential rollback between the NOAM oceanic crust north of Puerto Rico and the relative thicker Bahamas Carbonate Province crust north of Hispaniola a slab tear is created at 68.5ºW. The northern margin of Puerto Rico records the oblique high-dip subduction and rollback of the NOAM plate below the island arc. Those processes have resulted in a forearc transpressive tectonics (without strain partitioning), controlled by the Septentrional-Oriente Fault Zone (SOFZ) and the Bunce Fault Zone (BFZ). Meanwhile, in the northern margin of Hispaniola, the collision of the Bahamas Carbonate Province results in high plate coupling with strain partitioning: SOFZ and Northern Hispaniola Deformed Belt (NHDB). In the northern Haitian margin, compression is still relevant since seismicity are mostly associated with the deformation front, whereas strike slip earthquakes are hardly anecdotal. Although in Hispaniola intermediate-depth seismicity should disappear, diffuse intermediate-depth hypocenter remains evidencing the presence of remnant NOAM subducted slab below central and western Hispaniola. Results of this study improve our understanding of the active tectonics in the NE Caribbean that it is the base for future assessment studies on seismic and tsunamigenic hazard.ElsevierUniversidad Complutense de Madrid20202020-02-0720202020-02-07journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/6019reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Atribución-NoComercial-SinDerivadas 3.0 Españahttps://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/60192026-06-02T12:44:21Z
dc.title.none.fl_str_mv Along-strike segmentation in the northern Caribbean plate boundary zone (Hispaniola sector): Tectonic implications
title Along-strike segmentation in the northern Caribbean plate boundary zone (Hispaniola sector): Tectonic implications
spellingShingle Along-strike segmentation in the northern Caribbean plate boundary zone (Hispaniola sector): Tectonic implications
Rodríguez Zurrunero, Álvaro
551.4
Caribbean plate
Hispaniola
Subduction
Collision
Segmentation
Strain partitioning
Geofísica
Geodinámica
2507 Geofísica
2507 Geofísica
title_short Along-strike segmentation in the northern Caribbean plate boundary zone (Hispaniola sector): Tectonic implications
title_full Along-strike segmentation in the northern Caribbean plate boundary zone (Hispaniola sector): Tectonic implications
title_fullStr Along-strike segmentation in the northern Caribbean plate boundary zone (Hispaniola sector): Tectonic implications
title_full_unstemmed Along-strike segmentation in the northern Caribbean plate boundary zone (Hispaniola sector): Tectonic implications
title_sort Along-strike segmentation in the northern Caribbean plate boundary zone (Hispaniola sector): Tectonic implications
dc.creator.none.fl_str_mv Rodríguez Zurrunero, Álvaro
Granja Bruña, José Luis
Muñoz Martín, Alfonso
Leroy, Sylvie
Ten Brink, Uri S.
Gorosabel-Araus, J.M.
Gómez de la Peña, Laura
Druet Vélez, María
Carbo Gorosabel, Andrés
author Rodríguez Zurrunero, Álvaro
author_facet Rodríguez Zurrunero, Álvaro
Granja Bruña, José Luis
Muñoz Martín, Alfonso
Leroy, Sylvie
Ten Brink, Uri S.
Gorosabel-Araus, J.M.
Gómez de la Peña, Laura
Druet Vélez, María
Carbo Gorosabel, Andrés
author_role author
author2 Granja Bruña, José Luis
Muñoz Martín, Alfonso
Leroy, Sylvie
Ten Brink, Uri S.
Gorosabel-Araus, J.M.
Gómez de la Peña, Laura
Druet Vélez, María
Carbo Gorosabel, Andrés
author2_role author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 551.4
Caribbean plate
Hispaniola
Subduction
Collision
Segmentation
Strain partitioning
Geofísica
Geodinámica
2507 Geofísica
2507 Geofísica
topic 551.4
Caribbean plate
Hispaniola
Subduction
Collision
Segmentation
Strain partitioning
Geofísica
Geodinámica
2507 Geofísica
2507 Geofísica
description The North American (NOAM) plate converges with the Caribbean (CARIB) plate at a rate of 20.0 ± 0.4 mm/yr. towards 254 ± 1º. Plate convergence is highly oblique (20-10º), resulting in a complex crustal boundary with along-strike segmentation, strain partitioning and microplate tectonics. We study the oblique convergence of the NOAM and CARIB plates between southeastern Cuba to northern Puerto Rico using new swath multibeam bathymetry data and 2D multi-channel seismic profiles. The combined interpretation of marine geophysical data with the seismicity and geodetic data from public databases allow us to perform a regional scale analysis of the shallower structure, the seismotectonics and the slab geometry along the plate boundary. Due to differential rollback between the NOAM oceanic crust north of Puerto Rico and the relative thicker Bahamas Carbonate Province crust north of Hispaniola a slab tear is created at 68.5ºW. The northern margin of Puerto Rico records the oblique high-dip subduction and rollback of the NOAM plate below the island arc. Those processes have resulted in a forearc transpressive tectonics (without strain partitioning), controlled by the Septentrional-Oriente Fault Zone (SOFZ) and the Bunce Fault Zone (BFZ). Meanwhile, in the northern margin of Hispaniola, the collision of the Bahamas Carbonate Province results in high plate coupling with strain partitioning: SOFZ and Northern Hispaniola Deformed Belt (NHDB). In the northern Haitian margin, compression is still relevant since seismicity are mostly associated with the deformation front, whereas strike slip earthquakes are hardly anecdotal. Although in Hispaniola intermediate-depth seismicity should disappear, diffuse intermediate-depth hypocenter remains evidencing the presence of remnant NOAM subducted slab below central and western Hispaniola. Results of this study improve our understanding of the active tectonics in the NE Caribbean that it is the base for future assessment studies on seismic and tsunamigenic hazard.
publishDate 2020
dc.date.none.fl_str_mv 2020
2020-02-07
2020
2020-02-07
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/6019
url https://hdl.handle.net/20.500.14352/6019
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución-NoComercial-SinDerivadas 3.0 España
https://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución-NoComercial-SinDerivadas 3.0 España
https://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,301629

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