Estudio cristaloquímico de micas de Sierra Nevada. Cordillera Bética

  1. J.D. Martín Ramos
  2. Miguel Ángel Hidalgo
  3. Manuel Rodríguez Gallego
  4. Fermín Otálora Muñoz
Revista:
Boletín de la Sociedad Española de Mineralogía

ISSN: 0210-6558

Any de publicació: 1989

Volum: 12

Número: 0

Pàgines: 101-111

Tipus: Article

Altres publicacions en: Boletín de la Sociedad Española de Mineralogía

Resum

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.