Ordovician and Silurian igneous rocks and orthogneisses in the Catalonian Coastal Ranges
These rocks exhibit calc-alkaline affinities and may have originated by partia1 melting of the crust in a post-collision, anorogenic setting. Orthogneisses derived from biotite-bearing leucogranites occur within aprobably cambrian heterogeneous series. Petrological and geochemical features suggest t...
| Autores: | , , |
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| Formato: | artículo |
| Fecha de publicación: | 1990 |
| País: | España |
| Recursos: | Universidad Complutense de Madrid (UCM) |
| Repositorio: | Docta Complutense |
| Idioma: | inglés |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/88447 |
| Acesso em linha: | https://hdl.handle.net/20.500.14352/88447 |
| Access Level: | acceso abierto |
| Palavra-chave: | 552:551.733(460.23) Pre-hercynianmagmatism Metavolcanites Orthogneisses Bulk-rock chemistry Magmatismopre-hercínico Metavulcanitas Ortogneises Composición química Petrología 2506.13 Petrología Ignea y Metamórfica |
| Resumo: | These rocks exhibit calc-alkaline affinities and may have originated by partia1 melting of the crust in a post-collision, anorogenic setting. Orthogneisses derived from biotite-bearing leucogranites occur within aprobably cambrian heterogeneous series. Petrological and geochemical features suggest that they might be genetically related to the ordovician vulcanites. Basic sills and volcanoclastic rocks occur intercalated within a mainly pelitic formation in the lower part of the Silurian sequence. The silurian igneous rocks are alkali basalts and may reflect an extensional regime. |
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