Origen de las brechas de la base del Jurásico de Leitza (Cordillera Vasco-Cantábrica oriental, Navarra)

ExtensionsI tectonic activity at the Triassic-Jurassic boundary in the eastern Basc-Cantabric Range (N Spain) in v o lv e d the generation o f a set o f semigraben basins. The largest basin appears related to the Leitza fault, which determined both the accumulation of a thick succession of a caothic...

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Detalles Bibliográficos
Autores: Gallego, R., Aurell, Marc, Bádenas, Beatriz, Fontana, B., Meléndez Hevia, Guillermo
Tipo de recurso: artículo
Fecha de publicación:1994
País:España
Institución:Universidad de Huelva (UHU)
Repositorio:Arias Montano. Repositorio Institucional de la Universidad de Huelva
Idioma:español
OAI Identifier:oai:ariasmontano.uhu.es:10272/14005
Acceso en línea:http://hdl.handle.net/10272/14005
Access Level:acceso abierto
Palabra clave:Basc-Cantabric Range
Early Jurassic
Semigraben basins
Breccias
Descripción
Sumario:ExtensionsI tectonic activity at the Triassic-Jurassic boundary in the eastern Basc-Cantabric Range (N Spain) in v o lv e d the generation o f a set o f semigraben basins. The largest basin appears related to the Leitza fault, which determined both the accumulation of a thick succession of a caothic and poorly sorted breccia and the upwelling of basalts. These breccias grade up into massive dolomites deposited in shallow to supratidal marine restricted environments. Sinemurian relative sea level rise involved the flooding of these basins and the setting of an extensive carbonate ramp