Modelo de evolución topográfica en el NO de la Península Ibérica durante la delaminación litosférica al final de la Orogenia Varisca

Abstract

Through a simple isostatic balance modelization we attempt an approach to one of the possible lithosphericand topographical scenarios that took place in the aftermath of the Variscan Orogeny. From this point ofview, the results obtained, together with their comparison with the geologic, sedimentary and igneousrecord, during the Upper Carboniferous and the Early Permian, allow to explain most of the geologicalprocesses that took place in the studied region due to a process of lithospheric thickening under theCantabrian Zone and the subsequent lithospheric delamination of the formerly generated root. This processcaused a topographical inversion of the relief, from initially higher mountains in the western part of theVariscan Orogen (In present day coordinates) to subsequent dominant elevations in the east (CantabrianZone), contemporary with the lithospheric delamination.