In Mejez el Bab-Testour area, Triassic domes are the continuity of ech-Chehid dome, they result from polyphased halokinetic motion. The different setting stages can be deduced from the phenomena that occur within the Mesozoïc-Cenozoïc deposits ; reduction in thickness, progressive bevels, stratigraphie gaps, intraformational unconformities, hydroplastic deformations and reworking of Triassic mate¬ rial. During the Quaternary and Miocene shortening phases, these dome structures have acquired the current mushroom-shape and have thrusted Barremian to Plio-Quaternary series.
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Ouardi et al. (1995) studied this question.
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