Caracterización mineral del granito peralumínico de Logrosán (Cáceres, España)
[EN] The Logrosán granite (Cáceres, SW Spain), shows a complex intragranitic stockwork of Sn-W veins and peripheral phosphate veins hosted by Precambrian slates. The Logrosán pluton emplacement probably took place during the third phase of the Variscan Orogeny. The granite intrusion created an exten...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2011 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/62068 |
| Acceso en línea: | http://hdl.handle.net/10261/62068 |
| Access Level: | acceso abierto |
| Palabra clave: | Peraluminous granite Mineral chemistry Fractionated granite Granito peralumínico Química mineral Granito fraccionado |
| Sumario: | [EN] The Logrosán granite (Cáceres, SW Spain), shows a complex intragranitic stockwork of Sn-W veins and peripheral phosphate veins hosted by Precambrian slates. The Logrosán pluton emplacement probably took place during the third phase of the Variscan Orogeny. The granite intrusion created an extensive metamorphic aureole which affects the Precambrian slates. The Logrosán stock is classified as a peraluminous, P-rich and F-rich leucogranite, with aplite dikes and tourmaline bearing pegmatites. A greisen alteration was induced during tin-veining in the host granitic rock. The main rock-forming minerals include quartz, K-feldspar, plagioclase, muscovite, biotite and apatite. Samples of granite and greisen veins were analysed and examined by electron microprobe to characterize the chemical nature of the main mineralogy. |
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