Condiciones P - T de emplazamiento del batolito de Nisa-alburquerque
The Nisa-Alburquerque batholith (294 ±77 Ma) is composed of S-type granites and small stocks of l-type granitoids. The batholith was emplaced into a variety of country rocks (metasediments and metaigneous lithologies) of three different domains, namely, the southern Central Iberian zone, the Central...
| Autores: | , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2003 |
| 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:10272/9033 |
| Acceso en línea: | http://hdl.handle.net/10272/9033 |
| Access Level: | acceso abierto |
| Palabra clave: | Nisa-Alburquerque batholith Emplacement Contact aureole Muscovite Andalusite Granite solidus |
| Sumario: | The Nisa-Alburquerque batholith (294 ±77 Ma) is composed of S-type granites and small stocks of l-type granitoids. The batholith was emplaced into a variety of country rocks (metasediments and metaigneous lithologies) of three different domains, namely, the southern Central Iberian zone, the Central Unit, and the northern Ossa-Morena Zone. Pressure and temperature during final emplacement is investigated by considering previous studies in the contact aureole and by comparing with P-T estimates based on the mineralogy, normative composition and geochemistry of the S-type granites. On this ground, we proposed pressures of —2,3-3 kbar, and temperatures of — 650 °C as the most plausible ones during final emplacement of this batholith |
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