Estudio cristaloquímico de micas de Sierra Nevada. Cordillera Bética
- J.D. Martín Ramos
- Miguel Ángel Hidalgo
- Manuel Rodríguez Gallego
- Fermín Otálora Muñoz
ISSN: 0210-6558
Année de publication: 1989
Volumen: 12
Número: 0
Pages: 101-111
Type: Article
D'autres publications dans: Boletín de la Sociedad Española de Mineralogía
Résumé
The mica group muscovite (or phengite) - paragonile -biotite - phlogopite is very common in metasediments of Internal Betic Cordillera (Spain). The Na content of muscovite and the K content of paragonite are basically functions of the formation temperature. The Si content of the tetrahedral layer are function of the temperature and the pressure. The variation of the crystallographic cell parameters depends of the chemical composition. These parameters are direct measures of the solid solution degree in the muscovite-paragonite and muscovite-celadonite. A discussion on the general reliability of the stablished procedures is built up. A serie of theoretical diffractograms for different compositions and structures are shown.