Superposición de estructuras hercinianas en el sector de Buitrago-Somosierra. (Sierra del Guadarrama, Sistema Central)

• Autores: Antonio Azor Pérez, Francisco González Lodeiro, Luis Miguel Martín Parra, Pedro M. Villar Alonso
• Localización: Geogaceta, ISSN 0213-683X, Nº. 10, 1991, págs. 116-118
• Idioma: español
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• Resumen

  • The Preordovician rocks of the Buitrago-Somosierra area have undergone three penetrative phases of Hercynian deformation. The phases 1 & 2 are of tangentia/ character, FI probably generates a recumbent syncline Eastern vergence, whereas F2 generates a subhorizontal ductile shear zone of SE sense of movement. FB is a tight backfolding. Subsequently, ductile-brittle fracturation and subvertical folding take place