A very crumpled and altered rock. The deep ocean sediments shown here formed near the slope since they are largely turbidites with some volcanics and shales. The Hawasinah sediments were also thrust over the Arabian platform and lie structurally beneath the ophiolites, hence the high degree of folding and the evidence for overturning deduced from examination of the graded bedding. White Exotic limestones, Wadi al Jizi. The Oman exotics are white limestones which do not extend laterally.
Isolated outcrops are underlain by volcanic rocks.
They are calcirudites, meaning that they re made up of limestone rubble which accumulated on top of sea mounts in the ocean. Sea arch near Bandar Jissah, Muscat. Following the geological turbulence of the closing of the Tethys Ocean and the uplift of the Eo-Alpine chain in the early Tertiary, much of the land area again became submerged in shallow seas in which fossiliferous limestones were deposited. The Tertiary limestones lie sub-horizontally or are only gently tilted. They outcrop widely round the coast from Bimah to Sur and beyond, and in the southern Dhofar mountains behind the Salalah plain dipping gently northward beneath the Najd desert.