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The onset of the assembly of Pangaea in NW Iberia: Constraints on the kinematics of continental subduction

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Díez Fernández, Rubén y Martínez Catalán, José Ramón y Arenas Martín, Ricardo y Abati Gómez, Jacobo (2012) The onset of the assembly of Pangaea in NW Iberia: Constraints on the kinematics of continental subduction. Gondwana research, 22 . pp. 20-25. ISSN 1342-937X

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URL Oficial: http://www.journals.elsevier.com/gondwana-research/



Resumen

Excellent exposures of high-pressure rocks developed in a Variscan continental subduction system outcrop in
NW Iberia. The kinematic criteria provided by the high-pressure metamorphic fabrics can be used to infer
tectonic flow within the deep sections of this system. The dominant trend of the ductile flow is oblique to
that of the orogenic belt, indicating oblique continental subduction. Its azimuth, a few tens of degrees clockwise
relative to the orogenic trend, suggests dextral transpression between Gondwana and Laurussia during
continental subduction that took place at the Upper Devonian, and provides a consistent kinematic reference
for the earliest assembly of Pangaea in NW Iberia.


Tipo de documento:Artículo
Palabras clave:Assembly of Pangaea; Continental subduction kinematics: Tectonics; NW Iberia
Materias:Ciencias > Geología > Geodinámica
Código ID:17367
Depositado:10 Dic 2012 13:33
Última Modificación:10 Dic 2012 13:33

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