Flujo de material dúctil relacionado con carga diferencial de los materiales de cobertera

• R. Soto ^[1] ; A. Casas-Sainz ^[1] ; F. Storti ^[2] ; F. Rossetti ^[2] ; C. Faccenna ^[2]
  1. [1] Universidad de Zaragoza

     Universidad de Zaragoza

     Zaragoza, España

     
  2. [2] Roma Tre University

     Roma Tre University

     Roma Capitale, Italia

     
• Localización: Geotemas (Madrid), ISSN 1576-5172, Nº. 6, 3, 2004 (Ejemplar dedicado a: IV Congreso Geológico de España (Zaragoza, 12-15 julio, 2004)), págs. 109-112
• Idioma: español
• Enlaces
  • Texto Completo Ejemplar
• Resumen

  • A series of sand-silicone models was performed in order to analyse the role of an along-strike pretectonic overburden-tapering with 3n underlying detachment level on the architecture and dynamics of fold-and-thrust belts. Our experimental results indicate that the deformational pattern ot accretionary wedges can vary substantially when a pre-tectonic sedimentary geometry is underlain by a ductile layer. Escape structures, ductile flow and rotation of the overburden are the principal consequences of an along-strike pre-tectonic sedimentary tapering overlying a detachment level.