Metamorfismo de AP/BT en metapelitas de la unidad de Ragua (complejo Nevado-Filábride, Cordillera Bética). Resultados termo-barométricos del estudio de equilibrios locales.

  1. Booth-Rea, G. 1
  2. Azañón, J.M. 2
  3. Martínez-Martínez, J.M. 2
  1. 1 GEOMAR, Alemania
  2. 2 Universidad de Granada
    info

    Universidad de Granada

    Granada, España

    ROR https://ror.org/04njjy449

Revista:
Geogaceta

ISSN: 0213-683X

Año de publicación: 2003

Número: 34

Páginas: 87-90

Tipo: Artículo

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Otras publicaciones en: Geogaceta

Resumen

We have analysed the thermobarometric equilibrium conditions reached during local equilibria among phengite + chlorite + quartz + water ± chloritoid ± garnet assemblages found in metapelites of the Ragua unit, the structurally-Iowest tectonic unit outcropping in the Betics hinterland (southern Spain). Porphyroblast- deformation relationships show that lenticular domains preserved within the main foliation in the metapelites grew during a HP/LT prograde metamorphic event with thermal conditions of 320-450ºC and 12 - 14 kbar pressure. Hence, the Ragua unit subducted in a continental accretionary-wedge context, undergoing a tectonic evolution parallel to the one followed by the two other overlying Nevado-Filabride units.

Fuente de los datos: Dialnet