TILTED BLOCKS DURING THE EARLY CRETACEOUS IN THE LE-KEF AREA (NORTH-WESTERN TUNISIA)

Stratigraphic and tectono-sedimentary analysis of the Lower Cretaceous series in the Le Kef area, north-western Tunisia, provides informatio n on their geodynamic history from the Valanginian to the Albian. Exte nsional tectonics induced tilled blocks and half-grabens. Two main sta ges were distinguished: the first pre-Aptian and the second Late Aptia n and Albian. These periods could be related to extensional episodes t hat caused the opening of the central Atlantic and the Ligurian Tethys (Jurassic-Early Cretaceous) and later the Mesogean sea (Late Aptian). ((C) Academie des sciences / Elsevier, Paris.).