A kinematic model for folds accommodating shortening in tips of reverse faults:: an example from the southern Pyrenees (N Iberian Peninsula) .

• Hodei Uzkeda Apesteguia ^[1] ; Josep Poblet i Esplugas ^[1] ; Maite Bulnes Cudeiro ^[1]
  1. [1] Universidad de Oviedo

     Universidad de Oviedo

     Oviedo, España

     
• Localización: Trabajos de geología, ISSN 0474-9588, Nº 30, 2010, págs. 296-302
• Idioma: inglés
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• Resumen

  • A kinematic model for fault-related folds is proposed based on a field example from thePyrenees. A brief explanation of the model with remarks on its properties and why it was chosen tosimulate the natural structure is given together with a detailed structural analysis. The structure consistsof a meter-scale fold developed at the tip of a thrust fault with its backlimb dipping less than thefault surface and including a footwall fold. The suggested model presents an acceptable geometrical fittingto the studied structure and provides a reasonable evolutionary history for the fold. Graphs ofshortening vs. slip along the fault can be obtained using the model’s equations in which a possiblestructural path followed by the structure can be depicted.