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The Moroccan Central High Atlasic mud-mounds correspond to carbonate sponge–algal buildups developed in open marine conditions towards the Lower–Upper Sinemurian boundary. The structures gradually increase in size through time, from the small-sized lenses included in the Idikel coarse-bedded Lower Sinemurian grainstones to the high domes observed in the succeeding Aberdouz and Ouchbis Upper Sinemurian...
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