Diapiric structures in Egypt and Syria

Diapiric structures have been identified in axial zones of northeast-southwest anticlines of the Abu Roash area west of Cairo, Egypt, similar to those found along the northeast-trending belt of anticlinal folding in the Palmyrean chain of Syria and elsewhere in the mobile shelf area east and south of the Mediterranean. At Abu Roash, competent Turonian and Senonian carbonate rocks (Cretaceous) forming the shell of the anticline have been injected by basal Turonian clayey material mobilized during folding. In Syria, Jurassic gypsum and anhydrite form the diapiric cores of the Palmyrean folds.