Petrología del macizo granítico de Manzalvos-Castromil (NO de la Zona Centro-Ibérica)
The Manzalvos-Castromil massif (NW Iberian Hercynian Belt) is mainly composed of granitoids that define an alumino-potassic association. Magmatic microgranular enclaves and scattered amphibole-biotite intermediate rocks are present in the massif. These rocks are later intruded by some two micas gran...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2002 |
| 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:10272/9368 |
| Acceso en línea: | http://hdl.handle.net/10272/9368 |
| Access Level: | acceso abierto |
| Palabra clave: | Granitoids Basic Enclaves Manzalvos-Castromil Central Iberian Zone Hercynian Belt |
| Sumario: | The Manzalvos-Castromil massif (NW Iberian Hercynian Belt) is mainly composed of granitoids that define an alumino-potassic association. Magmatic microgranular enclaves and scattered amphibole-biotite intermediate rocks are present in the massif. These rocks are later intruded by some two micas granites and leucogranites that result in hybrid contact zones. Field relationships point out to a quasi-simultaneous intrusion of both basic magmas and granitoids. The hybrid nature of the calcoalkaline basic magma is deduced from its petrological, mineralogical and geochemical characteristics. They are derived from a basic magma evolving by assimilation and contamination with crustal components in the middle continental crust |
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