A biostratigraphic classification of marine Paleogene deposits as applied in stratigraphic interpretations. Seven biozones are distinguished mainly on the basis of differences in the composition of benthonic foraminiferal assemblages. (AIS).
, porphyritic microcline granite as a result of cryptogenous chemical weathering of two-fold nature, in Cretaceous-Paleogene, and in Pliocene. The tors were exhumed in preglacial times, when modified by subaerial processes.
Plus des trois quarts de la superficie de ces montagnes de flysch paléogènes sont couverts de cambisols (sols bruns eu-méso-basiques et sols bruns acides). Les spodosols ne représentent que 20% de la couverture pédologique alors que les mollisols et