The Mesopotamian Stratigraphy researches..

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Stratigraphic succession of Basrah Area

   A composite stratigraphic column (Figure below) was constructed depending upon the coring for petroleum exploration in that area. The coring reaches the top of the Sulaiy Formation.
   The top of this succession is the Dibdibba Formation which is covered by the Hammar Formation. This formation consists of coarse and very coarse ill-graded sand in the lower part, and grey clay and thin washes of shells in the upper part, it belongs to marine origin. The Hammar Formation is covered by recent alluvial sediments.