Xenolitos de metapelitas de alto grado en metabasitas:evidencia del emplazamiento en corteza continental del magmatismo básico Nevado-Filábride (Cordilleras Béticas)
- Maria Teresa Gómez Pugnaire 1
- M. Muñoz 2
- 1 Instituto Andaluz de Geología Mediterránea (CSIC). Universidad de Granada
- 2 Universidad Complutlense
ISSN: 0213-683X
Año de publicación: 1989
Número: 7
Páginas: 13-15
Tipo: Artículo
Otras publicaciones en: Geogaceta
Resumen
Xenoliths from the continental crust have been found in the olivine-bearing dolerites in the Nevado-Filábride complex. This material is partially melted and assimilated by the igneous rocks and therefore chemical and mineralogical composition of both basaltic melts and xenoliths was modified: the xenoliths are composed of metamorphic and restite portions and in the basaltic melt the AI2O3 and SiO2 content increased in the sites with a higher xenolith content. The latter represent part of a metamorphic continental crust enclosed within the magma during its ascent and indicate, as do other chemical and geological features, that the metabasites were amplaced in the continental crust.