Sedimentological and sequential analysis of the deposits of upper Tortonian within the basin of el ma labiad, Tebessa (Algero-Tunisian borders)‎

الملخص EN

The authors’ works concern the sediments of the upper part of Tortonian within the basin of El Ma Labiad located at the southern part of Tebessa city, belonging to the eastern saharian Atlas mountains chain on the AlgeroTunisian borders.

The sedimentological analysis, carried out on 120 samples, has confirmed a downlap development structures towards the West of the basin.

These analyses have also proved the presence of a detrital continental sedimentation of four environments characterized by the river, delta, lake and marsh materials.

The petrographic and morphological analysis reveal a clastic sediments essentially quartz-bearing interbedded by some argillaceous intercalations, and a far-off water transport of an origin probably saharian.