Model for the topographic evolution in NW Iberia during the lithospheric delamination at the end of the Variscan Orogeny
| Autor: | Muñoz Quijano, Ingrid Natalia, Gutiérrez Alonso, Gabriel |
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| Rok vydání: | 2007 |
| Předmět: | |
| Zdroj: | GREDOS. Repositorio Institucional de la Universidad de Salamanca instname |
| Popis: | La evolución topográfica sucedida en laorogenia varisca en el NW de Iberia, consistió principalmente en una inversión de la polaridad del relieve, inicialmente de mayores cotas al oeste, a una situación en que las alturas dominantes se localizan en el este, coetánea con la delaminación litosférica. 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. |
| Databáze: | OpenAIRE |
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