Rasgos morfológicos y bioerosivos en un alto nivel marino del Pleistoceno Medio: el abrigo arqueológico de la Cabililla de Benzú (Ceuta)

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Morphologic and bioerosive features from an old marine highstand: the Cabililla archaeological shelter, Benzú, Ceuta
Date
2008Department
Historia, Geografía y FilosofíaSource
Resúmenes XII reunión anual de Cuaternario, Ávila, 2007. pp 69-70Abstract
The micro-morphologic and bioerosive features, analyzed in the Benzú shelter (Ceuta), allow us to deduce an erosion marine surface elaborated onto dolomite triassic substrate. The Entobia-Gastrochaenolites Ichnoassociation and Entobia ichnofacies denote high energy coastal or shallow marine environment with low sedimentation rates. Two phases are differentiated in the evolution of these bioerosive structures: the first one defined by great borings of Gastrochaenolites, and the second recorded by bioerosive activity of Entobia and truncation of both, the previous borings and the cliff surface.