Conditions lacustres en milieu marin; le Danien de la partie orientale du sillon nord-pyreneen

Abstract

Study of the lithologic and faunal composition of Danian limestones of the eastern part of the Cretaceous trough at the foot of the north slope of the French Pyrenees leads to the conclusion that a variety of petrographic types is present and that the so-called lacustrine limestones were formed in a marine basin in which lacustrine conditions were produced at times by the introduction of fresh waters from rivers flowing down ranges bordering both sides of the trough.