Litostratigrafia do Terciário da região de Miranda do Corvo-Viseu (Bacia do Mondego, Portugal)

Abstract

Key-words: Lilhostratigraphy; Tertiary; Central Portugal; Mondego Tertiary Basin; alluvial deposits; sedimenlary discontinuities. The lithostratigraphic units (2 groups, 5 formations and 4 members) of the Tertiary of the Miranda do Corvo-Viseu region (Central Portugal) are here described. For each unit the characterization and description (boundaries. diagnostic properties and atributes) were included. The stratigraphic, lithological, sequential and tectonic data allow correlations with other units of the same Tertiary basin located more to west and support the chronoslratigraphic attribution. Sedimentologic characteristics of the deposits lead to the interpretation of the influente of tectonism, climate and eustasy during the sedimentary evolution of this Basin.