The Cretaceous Layers Later than the Early Cretaceous

Abstract

The marine continuity after the Early Cretaceous implies an essential difference with the condition in the orogenic belt with a N-S trend of the Patagonian Cordillera. But this important difference does not avoid the matter concerning if these Late Cretaceous layers have been in fact involved in the same folding complexity as the Early Cretaceous ones, with slight metamorphism. The available information results, at present, not complete enough to adjust a formational definition.