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espanolLa seccion costera de la falla de Valdovino expone rocas de falla deformadas en las proximidades de la base de la zona sismogenica de la corteza Iberica Varisca, en la que estructuras fragiles discretas afectan una zona de deformacion predominantemente ductil. El nucleo de la falla contiene rocas ultramaficas, rocas maficas con granate, anfibolitas, neises cuarzo-feldespaticos y metavulcanitas basicas entre las facies deformadas del granitoide Varisco de A Espenuca. Este articulo describe la deformacion y microestructuras relacionadas con la falla desarrolladas en el granitoides. La composicion y caracteristicas tectonometamorficas del resto de rocas presentes en el nucleo de la falla sugieren que las estructuras asociadas a la falla se superpusieron a fabricas tectonicas previas, similares a las que presentan las rocas de los complejos aloctonos del NO del Macizo Iberico. EnglishThe coastal section across the Valdovino fault exposes fault-related rocks deformed at the base of the seismogenic zone of the Iberian Variscan crust. Discrete brittle structures are superimposed over previous predominant ductile deformation fabrics in most rocks. The core of the fault contains ultramafic rocks, garnet-bearing mafic rocks, amphibolites, quartzo-feldspathic gneisses and basic metavulcanites, in between the deformed facies of the A Espenuca Variscan granitoid. We show the deformation and microstructures related to the fault developed in the Variscan granitoid. The composition and tectonometamorphic features of the rest of the related rocks at the core of the fault suggest that deformation structures are superposed onto earlier tectonic fabrics, similar to those present in the rocks of the allochthonous complexes of the NW Iberian Massif.

Deformación asociada a la falla de Valdoviño (Noroeste del Macizo Ibérico) Deformation related to the Valdoviño fault (Northwest Iberian Massif)