Zonación estructural en una zona de cizalla en serpentinitas ( Falla de Peña Parda, peridotitas de Ronda)

• Autores: José Julián Esteban Guzman, Julia Cuevas Urionabarrenechea, José María Tubía Martínez
• Localización: Geogaceta, ISSN 0213-683X, Nº. 45, 2008, págs. 19-22
• Idioma: español
• Enlaces
  • Texto completo
• Resumen

  • We study deformation structures in a serpentinite-bearing normal shear zone in the Ronda peridotites, southern Spain. The fault zone displays a structural zoning composed by four domains showing similar strain gradients. Deformation is partitioned into distributed deformation expressed by foliated serpentinites and S-C structures and localized deformation expressed by R and P shear planes at lower and upper portions, respectively, of each domain. Such a structural zoning suggests that stable shear creep alternates with intermittent seismogenic events during the fault activity.