Nuevos datos microestructurales sobre la existencia de deformaciones precámbricas en la Sierra de la Demanda (Cordillera Ibérica)

• Autores: Benito Ábalos Villaro
• Localización: Geogaceta, ISSN 0213-683X, Nº. 30, 2001, págs. 3-6
• Idioma: español
• Títulos paralelos:
  • New microstructural data on the existence of precambrian deformations in the Sierra de la Demanda (Iberian Range)
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• Resumen

  • Microstructural surveying of pebbles of the early Cambrian «Anguiano Conglomerates» permits to recognize a variety of microstructures and textures that resulted from syn-metamorphic (up to 400°C, low-temperature greenschists facies) ductile deformations. The source area of the conglomerates was likely a Neoproterozoic basement that recorded the imprint of the Cadomian orogeny and that contained penetratively deformed metamorphic rocks in addition to the arc-related ingeous suites that have been detected or inferred so far in other realms of the northern Iberian Massif