Crustal structure of the southeastern Brazilian continental margin from surface wave dispersion

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Publicado: jul 1, 1996
DOI: https://doi.org/10.22201/igeof.00167169p.1996.35.3.463
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Dispersión de ondas de Rayleigh, velocidad de ondas S, margen continental de Brasil

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Jorge Luis De Souza
Observatório Nacional, Departamento de Geofísica, Rio de Janeiro, Brasil

Resumen

Las curvas de dispersión continentales se obtuvieron de las velocidades de grupo de ondas de Rayleigh para seis sismos con epicentros en el Atlantico Sur. La inversion sugiere una corteza superior sedimentaria, con velocidades de S de 1.32- 2.90 km/s, seguida por un basamento cristalino de 3.06-3.38 km/s. La corteza inferior es transicional (4.02-4.22 km/s) como en otros bordes continentales pasivos. La base de la corteza se encuentra a 36±4 km pero existen valore menores en los perfiles A a C.

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De Souza, J. L. (1996). Crustal structure of the southeastern Brazilian continental margin from surface wave dispersion. Geofísica Internacional, 35(3), 285–300. https://doi.org/10.22201/igeof.00167169p.1996.35.3.463
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Vol. 35 Núm. 3 (1996): Julio 1, 1996
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Esta obra está bajo una licencia internacional Creative Commons Atribución-NoComercial-CompartirIgual 4.0.

Biografía del autor/a

Jorge Luis De Souza, Observatório Nacional, Departamento de Geofísica, Rio de Janeiro, Brasil

 

 

Citas

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