Xenolitos de metapelitas de alto grado en metabasitas: evidencia del emplazamiento en corteza continental del magmatismo básico Nevado-Filábride (Cordilleras Béticas)
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 xe...
| Autores: | , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 1989 |
| País: | España |
| Institución: | Universidad de Huelva (UHU) |
| Repositorio: | Arias Montano. Repositorio Institucional de la Universidad de Huelva |
| Idioma: | español |
| OAI Identifier: | oai:ariasmontano.uhu.es:10272/18282 |
| Acceso en línea: | http://hdl.handle.net/10272/18282 |
| Access Level: | acceso abierto |
| Palabra clave: | Xenoliths Basic dykes Nevado-Filábride complex Cordilleras Béticas |
| Sumario: | 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 Al2O3 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 |
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