Estudio de la fábrica magnética (ASM) y modelo de emplazamiento del macizo granítico de Trives (Galicia)
- Román Berdiel, T. 1
- Aranguren, A. 1
- Cuevas, J. 1
- 1 Universidad del País Vasco, España
ISSN: 0213-683X
Año de publicación: 1997
Título del ejemplar: 22ª Sesión Científica, Bilbao 1997
Número: 22
Páginas: 189-192
Tipo: Artículo
Otras publicaciones en: Geogaceta
Resumen
The Trives granodiorite (NW Spain) is located within the metasediments of the «Ollo de Sapo» antiform (northern part of the Iberian Variscan belt). The zonation of bulk low-field susceptibility indicates a more basic composition at the southern part of the central sector. Mapping of magnetic foliations and lineations of the Trives Massif indicate that the emplacement of the granodiorite was contemporary with NE-SW flattening. The orientation of foliation follows a NW-SE folded pattern (the poles of foliation planes are distributed along a great circle), plunging toward the NW Magnetic fabric within the granitoid body and structures within the country rock allow to interpret this intrusion as a D3 synkinematic laccolith.