Riyam view in Oman
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Looking at the seas of the Gulf of Oman here it is hard to imagine this was once the scene of geologically earth shattering events.
90 million years ago, a several kilometre thick slab of the oceanic crust slowly started to push its way over the top of Oman’s coastline. This unusual overthrusting or obduction continued for around 20 Million years, pushing rocks originating from deep within the ocean onto Oman’s crustal plate. The rugged ophiolite hills around Muscat and those stretching hundreds of kilometres inland are legacy of this. It is the largest and best exposed fragment of oceanic lithosphere found on land in the world. It includes extensive exposure of an almost complete section of oceanic crust and uppermost mantle (around 500 km long, and up to 80 km wide).