Geologic evolution of the Portugal mainland during the Cenozoic - alluvial and marine sedimentation at a passive continental margin (W Iberia)

6º Simposio sobre el Margen Ibérico Atlántico MIA09In Portugal mainland Cenozoic sedimentation occurred largely but allocated to several basins. Even in the same basin, the sedimentary record shows significant lateral changes in facies and thickness. However, the main sedimentary ruptures and overall lithologic characteristics of the infilling stages are quite similar in the several basins, reflecting the geodinamic evolution of Iberia and the eustatic and climate changes during Cenozoic times. A stratigraphic framework is proposed, in order to contribute towards a less complex use of the lithostratigraphic units defined in the geological maps and literature. Some topics for future research are also suggested