Le Carbonifere marin du bassin de Fort-Polignac

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Abstract
A synthesis of cross sections of the marine Carboniferous of the Fort-Polignac basin in the eastern Sahara (Algeria) reveals three important stratigraphic facts--the presence of Tournaisian deposits, probably lower Tournaisian, below transgressive upper Tournaisian beds; the simultaneous character of the upper Tournaisian transgression throughout the whole basin; and discontinuity of sedimentation between the (lower?) Namurian and the Westphalian which is tentatively referred to the general hiatus between the lower and the middle-upper Carboniferous.

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