Deformación heterogénea en los macizos graníticos de Sarria y Santa Eulalia de Pena (provincia de Lugo)
ISSN: 0211-8327
Ano de publicación: 1983
Volume: 18
Páxinas: 39-63
Tipo: Artigo
Outras publicacións en: Studia geologica salmanticensia
Resumo
The Sarria granite and the Santa Eulalia de Pena granodiorite are representative of the two main syntectonic granitoid groups in Galicia. Both are located in the «Domo de Lugo» antiform and deformed in heterogeneously distributed zones. This paper presents a macro and microscopic description of the deformed faciès and an analysis of the crystallographic fabric of quartz. Furthermore, the physical conditions of deformation and the deformational regime in the massifs are compared with those of the metamorphic country rocks, and a link is proposed between strain in the granitic bodies and simple shear in the basal zone of the Mondoñedo Nappe.