Intracontinental mountain ranges have received comparatively less attention than plateboundary orogenic belts. Among the main points of research are the localisation of deformation and the nature of processes conducting to mountain topography (whether crustal thickening of lithosphere folding). The Atlas ranges of Morocco are intracontinental ranges in the foreland of the Betic-Rifean orogen, which present several unresolved tentonic problems such as:low shortening and high topography, absence of crustal roots (as suggested by preliminary gephysical investigations) and very little development peripheral flexural basins. However, the structural geometry of the area is poorly known, and comprehensive cross-sections are lacking. The project pretends firstly the construcion of a series of balanced geological cross-sections of the entire north african foreland afected by alpine deformation kinematics. ¨Based on in-situ measurements, gravimetric profiles will be traced and subsequently modelled, using the basis of the objective cross-sections and the available geophysical information. The results will be complementd with analogue and numerical modelling of processes at the lithospheric scale. The main objetive is to unravel the lithospheric structure al this intraplate region, to gain insight into the topography-forming mechanisms, the present isostatic state, and the role of flexure.
|Effective start/end date||19/12/00 → 19/12/03|