Título
A 3-D shear velocity model of the southern North American and Caribbean plates from ambient noise and earthquake tomography.
Autor
BEATRIZ GAITE
Nivel de Acceso
En Embargo
Materias
RUIDO AMBIENTAL - ([https://www.solid-earth.net/6/271/2015/]) PLACA DEL CARIBE - ([https://www.solid-earth.net/6/271/2015/]) PLACA DE AMÉRICA DEL NORTE - ([https://www.solid-earth.net/6/271/2015/]) OLA DE RAYLEIGH - ([https://www.solid-earth.net/6/271/2015/]) ONDA S - ([https://www.solid-earth.net/6/271/2015/]) ZONA DE de SUBDUCCIÓN - ([https://www.solid-earth.net/6/271/2015/]) EVOLUCIÓN TECTÓNICA - ([https://www.solid-earth.net/6/271/2015/]) TOMOGRAFÍA - ([https://www.solid-earth.net/6/271/2015/]) VELOCIDAD DE ONDA - ([https://www.solid-earth.net/6/271/2015/]) Wave translator - (LCC) SUBDUCTION AREA - (LCC) TECTONIC EVOLUTION - (LCC) NORTH AMERICA PLATE - (LCC) CIENCIAS FÍSICO MATEMÁTICAS Y CIENCIAS DE LA TIERRA - (CTI) CIENCIAS DE LA TIERRA Y DEL ESPACIO - (CTI) GEOFÍSICA - (CTI) SISMOLOGÍA Y PROSPECCIÓN SÍSMICA - (CTI) concept8601 - (UNESCO) Seismology - (GEOREF)
Resumen o descripción
We use group velocities from earthquake tomography together with group and phase velocities from ambient noise tomography (ANT) of Rayleigh waves to invert for the 3-D shear-wave velocity structure (5-70 km) of the Caribbean (CAR) and southern North American (NAM) plates. The lithospheric model proposed offers a complete image of the crust and uppermost-mantle with imprints of the tectonic evolution. One of the most striking features inferred is the main role of the Ouachita-Marathon-Sonora orogeny front on the crustal seismic structure of the NAM plate. A new imaged feature is the low crustal velocities along the USA-Mexico border. The model also shows a break of the east-west mantle velocity dichotomy of the NAM and CAR plates beneath the Isthmus of the Tehuantepec and the Yucatan Block. High upper-mantle velocities along the Mesoamerican Subduction Zone coincide with inactive volcanic areas while the lowest velocities correspond to active volcanic arcs and thin lithospheric mantle regions.
Editor
Copernicus GmbH
Fecha de publicación
29 de diciembre de 2015
Tipo de publicación
Artículo
Versión de la publicación
Versión publicada
Recurso de información
Formato
Fuente
https://www.solid-earth.net/6/271/2015/
Idioma
Inglés
Relación
Solid Earth
Gaite, B.; A. Villasenor; A. Iglesias; M. Herraiz and I. Jimenez-Munt. 2015. "A 3-D Shear Velocity Model of the Southern North American and Caribbean Plates from Ambient Noise and Earthquake Tomography." Solid Earth, 6(1), 271-284.
Repositorio Orígen
Repositorio de Literatura del Servicio Sismológico Nacional
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