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L'etude stratigraphique et le leve cartographique dans le Sud-Ouest du Moyen Atlas (Maroc) (synclinal d'Iguer Awragh-Afennourir) a permis d'etablir la dynamique de son evolution pendant le Toarcien et l'Aalenien. Les nombreuses et spectaculaires variations d'epaisseurs et de facies et la decouverte nouvelle de biohermes a madreporaires qui jalonnent les paleostructures au Toarcien superieur indiquent...