Resumen de Características morfoestructurales del entorno sumergido de la Isla de Alborán
Juan Tomás Vázquez, José Luis Sanz García, Patricia Bárcenas Gascón, Víctor Díaz del Río Español
The main morphologic, tectonic and bottom features o f the surrounding area of the Alboran Island have been determined by means of a detailed bathymetric and sonographic study. Seven types o f acoustic response of the sea bottom have been differentiated, four of them are related to outcrops of volcanic rocks, two to soft sediments and the last one to a hard sediment surface.
The main outcrop is limited by two scarps close to a E-W direction, have a sigmoide shape and is characterised by a pervasive fracturation that offset the volcanic beds. It has been differentiated two main directions: N125 and N145, and an oblique direction to the steep borders. These characteristics allow us to propose a transpressive origin, as a push-up zone, related to a E-W secondary transcurrent fault.
