Les Formations Crétacées de l？Algarve Oriental

the cretaceous series from the eastern algarve consists of fourteen formations between the berriasian and the cenomanian. ten of those are peculiar to this area. these last lithostratigraphic units are formally defined. the lithologic compositions, the main palaeontologic associations and the boundaries of each formation are described from a reference section, precisely located and illustrated with mean of photographic plates. the dating of these units is argued. the major facies changes are mentioned. a correlation with the formations of the central and western algarve is proposed.