Estructura de los cuerpos plutónicos y migmatíticos en la parte central del Macizo de Gredos

Abstract

This work presents the results of a detailed geological mapping and structural study of the Spanish Central System batholith, in the central part of the Gredos Massif. The internal contacts in the batholith are parallel to the magmatic and solid-state foliations, defining a complex of sheeted intrusive (granodiorites, basic rocks, leucogranites) and migmatitic rocks. Upright, closed, NE-SW trending folds, late with respect to the intrusion of the igneous rocks affect foliations and contacts. Emplacement and folding are younger than the D3 Variscan phase of the Central-Iberian Zone, and older than the extensional and transcurrent late-Variscan stages