Una nueva interpretación sobre las relaciones entre el emplazamiento de granitoides y el metamorfismo regional hercinianos en el Pirineo oriental
The Hercynian outcrops of the Cap de Creus (Eastern Pyrenees) allow to relate the intrusion of calcalkaline m agm as to low-pressure and high-temperature regional metamorphism. The coexistence o f basic and intermediate magmas with anatectic migmatites, and a well-developed field of pegmatitic bodie...
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| Formato: | artículo |
| Fecha de publicación: | 1995 |
| País: | España |
| Recursos: | Universidad de Huelva (UHU) |
| Repositorio: | Arias Montano. Repositorio Institucional de la Universidad de Huelva |
| Idioma: | español |
| OAI Identifier: | oai:ariasmontano.uhu.es:10272/13747 |
| Acesso em linha: | http://hdl.handle.net/10272/13747 |
| Access Level: | acceso abierto |
| Palavra-chave: | Hercynian granitoids Regional metamorphism Migmatites Pegmatites Mingling |
| Resumo: | The Hercynian outcrops of the Cap de Creus (Eastern Pyrenees) allow to relate the intrusion of calcalkaline m agm as to low-pressure and high-temperature regional metamorphism. The coexistence o f basic and intermediate magmas with anatectic migmatites, and a well-developed field of pegmatitic bodies inside the sillimanite zone, suggest that hot mantle or deep crustal-derived magmas ascending to the upper levels of the crust were the heat source for such high-thermal gradient regional metamorphism. Shallow-level emplaced batholiths and andesitic volcanism in the Hercynian Pyrenees might have been fed by this magmas, mixed in several degrees with the anatectic melts |
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