Modeling the Crust and Upper Mantle in Northern Beata Ridge (CARIBE NORTE Project)

Ambient Noise Tomography Images Accreted Terranes and Igneous Provinces in Hispaniola and Puerto Rico

“…The Beata Ridge is a 400‐km‐long NE‐SW trending topographic feature (Figure a) which, according to Révillon et al (), likely represents an imbricated sill/dike complex. Seismic refraction studies (e.g., Edgar et al, ) show that the Ridge's velocity structure is similar to that of ocean basins, while crustal thickness of the Beata Ridge can reach 20 km along the ridge axis (Núñez et al, ). This suggests that the Ridge should show slightly different velocities than the basins based on crustal thicknesses alone.…”

“…Studies based on seismicity, geodetic measurements, wide‐angle and multichannel seismic reflection, receiver functions, tomography, and submarine geophysical imaging (e.g., Calais et al, ; Corbeau et al, , ; Deng & Sykes, ; Dillon et al, ; Mauffret & Leroy, ; Núñez et al, ) have been carried out to better understand the plate boundary deformation and the long‐term geologic evolution of the tectonic transition between subduction beneath the Lesser Antilles arc and strike‐slip faulting in Hispaniola (Mann et al, ). These studies have resulted in contrasting conceptual models for neotectonics, strain partitioning, and microplates in the NCPBZ.…”

Seismic Discontinuities Across the North American Caribbean Plate Boundary From S‐to‐P Receiver Functions

“…Under the Caribbean Sea, refraction results image the Moho to be 10-20 km (Granja-Bruña et al, 2010;Mauffret & Leroy, 1997;Mauffret et al, 2001;Núñez et al, 2016). Given that we only use land based stations, we would not expect conversions from a 10-20 km discontinuity from offshore regions.…”

“…The bulk of the Caribbean plate offshore is comprised of the CLIP with a crustal thickness of 10-20 km, imaged by seismic refraction surveys (Granja-Bruña et al, 2010;Mauffret & Leroy, 1997;Mauffret et al, 2001;Núñez et al, 2016). Thin crust is observed in the Venezuelan basin (10-15 km), whereas thick crust is observed under the Beata Ridge and the Lower Nicaraguan Rise (15-20 km).…”

Valoración crítica sobre la falla nortecubana

“…De un modo similar, y con las investigaciones de Cotilla y Córdoba (2010, Cotilla y Udías (1999), Cotilla et al (1997Cotilla et al ( , 2007Cotilla et al ( , 2020, Núñez (2014) y Núñez et al (2015) entendemos que la FS es una estructura oceánica sismoactiva, con franca orientación lineal, en la zona norte del megabloque de La Española. Ella es una estrecha zona, con forma de banda apaisada, de interacción directa entre las placas Caribe y norteamericana en el segmento oeste de Haití -oeste de Puerto Rico (Mmáx=8,0/ más de 10 tsunamis locales/ ~500 fallecidos) (Figura 2, Tablas 1-6).…”