This is called a salt dome. It seems this one in particular is called the "Qeshm salt dome". http://geology.com/stories/13/salt-domes/ http://geology.com/stori

This is called a salt dome. It seems this one in particular is called the "Qeshm salt dome". http://geology.com/stories/13/salt-domes/ http://geology.com/stories/13/salt-domes/ https://en.wikipedia.org/wiki/Salt_dome/ https://en.wikipedia.org/wiki/Salt_dome/