Drenaje fluvial y topografía ligados a extensión: NE de Iberia

• Vergés, J. ^[1] ; Lewis, C. ^[1] ; Marzo, M. ^[1]
  1. [1] Universitat de Barcelona

     Universitat de Barcelona

     Barcelona, España

     
• Localización: Geogaceta, ISSN 0213-683X, Nº. 20, 4, 1996 (Ejemplar dedicado a: Comunicaciones presentadas en el IV Congreso Nacional de Geología, Alcalá de Henares, 1996), págs. 850-852
• Idioma: español
• Títulos paralelos:
  • Fluvial drainage and topography related to extension: NE of Iberia
• Enlaces
  • Texto completo (pdf)
• Resumen

  • Integrated ana!ysis of fluvial drainage pattern, digital topography and regional tectonics allows to determine the lateral extent of high topography linked to the extensional system of faults that parallels the coastline of the northeasterh Iberia. The development and rise of the present morphotectonic units of Sierra Prelitoral (upper Oligocene-Lower Miocene) and Sierras Transversales (upper Miocene to present) as rift flank processes, reorganized the previous fluvial drainage system and originated the present one. The Sierra Prelitoral bounds the NE-SW trend of faults that limit the El Carnp and Vallès-Penedès grabens whereas the Sierras Tansversals bound the NNW-SSE trend of faults related to the Emparda graben system. The different relative positions of external normal fault, maximum local relief and water divide in the Sierras Tansversals support the idea of very young topography related to active normal faulting .