Evolución paleogeográfica del Macizo de Béni Snassen (NE de Marruecos) durante el Triásico

• S. Ratbi ^[2] ; M. Oujidi ^[3] ; J. Bastida ^[1]
  1. [1] Universitat de València

     Universitat de València

     Valencia, España

     
  2. [2] Inema Ingenieros Asesores, S.L.
  3. [3] Université Mohamed I

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• Localización: Geotemas (Madrid), ISSN 1576-5172, Nº. 6, 2, 2004 (Ejemplar dedicado a: IV Congreso Geológico de España), págs. 111-114
• Idioma: español
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• Resumen

  • Isopach maps of the Triassic volcano-sedimentary succession in the Beni Snassen Massif (Eastern Morocco) present a great significance for understanding the dynamic processes of the initial Mesozoic dislocation of the northwestern side of Gondwana along the Southwest margin of the maghrebian Tethys. During this early extension episodes these area was affected by a conjugate motion of N70-90, N l40-160 and N30-40 faults that acted in a strike-slip or pull-apart transtensional regime allowing the individualization of several horsts and depressions subjected to a differential subsidence compensated by clastic sedimentation and basalt flow accumulation that controlled the palaeomorphology. Some depressions, like Sidi Yahya depocenter, were enough important to develop thick evaporite filling.