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

dc.contributor.authorRodríguez Zurrunero, Álvaro
dc.contributor.authorGranja Bruña, José Luis
dc.contributor.authorMuñoz Martín, Alfonso
dc.contributor.authorLeroy, Sylvie
dc.contributor.authorTen Brink, Uri S.
dc.contributor.authorGorosabel-Araus, J.M.
dc.contributor.authorGómez de la Peña, Laura
dc.contributor.authorDruet Vélez, María
dc.contributor.authorCarbo Gorosabel, Andrés
dc.date.accessioned2023-06-16T15:15:43Z
dc.date.available2023-06-16T15:15:43Z
dc.date.issued2020-02-07
dc.description.abstractThe 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.
dc.description.departmentDepto. de Geodinámica, Estratigrafía y Paleontología
dc.description.facultyFac. de Ciencias Geológicas
dc.description.refereedTRUE
dc.description.sponsorshipMinisterio de Ciencia e Innovación (MICINN)
dc.description.sponsorshipComunidad de Madrid
dc.description.sponsorshipInstitut des Sciences de la Terre de Paris (ISTeP)
dc.description.sponsorshipUniversidad Complutense de Madrid
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/58687
dc.identifier.doi10.1016/j.tecto.2020.228322
dc.identifier.issn0040-1951
dc.identifier.officialurlhttps://www.sciencedirect.com/science/article/pii/S0040195120300056?via%3Dihub
dc.identifier.relatedurlhttps://www.sciencedirect.com/science/article/pii/S0040195120300056?via%3Dihub
dc.identifier.urihttps://hdl.handle.net/20.500.14352/6019
dc.journal.titleTectonophysics
dc.language.isoeng
dc.page.final228357
dc.page.initial228322
dc.publisherElsevier
dc.relation.projectID(REN2003 -08520; CTM2006 -13666; CGL2010 - 17715; PGC2018-095999-B-I00))
dc.relation.projectIDCARESOIL (S2013/MAE -2739); CARESOIL (S2018/EMT -4317)
dc.relation.projectID(HAITI -SIS 1&2; DOI:10.17600/12010070 and 10.17600/13010080)
dc.relation.projectID(CT45/15 - CT46/15)
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España
dc.rights.accessRightsopen access
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subject.cdu551.4
dc.subject.keywordCaribbean plate
dc.subject.keywordHispaniola
dc.subject.keywordSubduction
dc.subject.keywordCollision
dc.subject.keywordSegmentation
dc.subject.keywordStrain partitioning
dc.subject.ucmGeofísica
dc.subject.ucmGeodinámica
dc.subject.unesco2507 Geofísica
dc.subject.unesco2507 Geofísica
dc.titleAlong-strike segmentation in the northern Caribbean plate boundary zone (Hispaniola sector): Tectonic implications
dc.typejournal article
dc.volume.number776
dspace.entity.typePublication
relation.isAuthorOfPublicationa8e1ccdc-93a6-418f-8672-cd595325b0d4
relation.isAuthorOfPublication3e70d521-0ccb-4af3-8e4c-5c243c232d24
relation.isAuthorOfPublication70f369a3-b3cd-43cb-874e-a7888da25de1
relation.isAuthorOfPublication81c6fb08-579c-448f-93f6-ac4000ebb551
relation.isAuthorOfPublication0b951829-65a7-4e09-ba68-d53c60e74bfb
relation.isAuthorOfPublication.latestForDiscoverya8e1ccdc-93a6-418f-8672-cd595325b0d4

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