Abstract

A stratigraphic research concerning Tithonic-Berriasian beds in northern Tunisia (Djebel Oust) points out that here, as in some parts of Algeria, the Inferior Cretaceous detritic phase begins in the Berriasian. A gradually deepening of the sea is noted from Inferior Tithonic till Middle Berriasian, with bathyal to hemipelagic facies, and submarine slidings. There are close similarities in ostracodal associations with Monts de Batna in Algeria, and some affinities are observed with the central Apennines in Italy.

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