Transição do enchimento terciário para o encaixe fluvial quaternário na área de Vila Velha de Ródão (sector NE da Bacia do Baixo Tejo)

Abstract

Key words: Geomorphology; lithostratigraphy; terraces; neolectonics; Quaternary'; Lower Tagus Basin; Central Portugal. The geomorphologie characteristics and lithostratigraphic units of the transition from the Tertiary filling stage to the Quatemary fluvial incision in the Vila Velha de Ródão area (Lower Tagus Basin, NE sector) are presented. Several morphodynamic episodes, which had an importaot tectonic control, were distinguished. The same main morphosedimentary processes can be identified in other areas of this important river basin. Five periods of Quatemary fluvial incision were characterized.