Chalk deposition characterised most of the Late Cretaceous period in many areas of the world. In Tunisia it occurred predominantly during the Campanian - Maastrichtian stages. The facies, characteristic of the Abiod Chalk Formation, was sampled in four wells from the Miskar Gas Field (SE Tunisia), and at Le Kef section (NW Tunisia). A geochemical investigation of 19 elements in the Miskar wells and 12 elements at Le Kef has permitted to constrain vertical geochemical profiles suited for correlation. Eight chemostratigraphic units are defined in the offshore wells. Nine geochemical sequences...
Chalk deposition characterised most of the Late Cretaceous period in many areas of the world. In Tunisia it occurred predominantly during the Campania...
