Sur les flyschs et les molasses du cycle alpin dans les Dinarides yougoslaves

Abstract The composition, mode of appearance, and the alternation in the flysch deposits of the Yugoslavian Dinarides indicates that they are of orogenic origin, formed during a period of emergence of cordilleras and sunken synclinal troughs. The terrigenous material came from land bordering the sea and from the basement rocks and the overlying deposits of the cordillera. The flysch deposition was preceded by a period of folding. The molasse deposits (Eocene to Miocene) were formed in the final phase of the geosyncline. Differences and similarities between molasse and flysch deposits indicate that the molasse is fossiliferous and usually contains carbon and bituminous shales, while the flysch has no macrofauna and a sparse microfauna. The conglomerate series in the flysch is not recognized in the molasse. The flysch formations in the area are Anisian, Albian-Cenomanian, Maestrichtian-Danian, and upper Eocene.