2020-01-08 00:00:00 A geologist once said that Oman is one big wonderful outdoor geological Museum with unique geological values. It is the only country in the world composed mostly of oceanic crust and rocks that originated from the mantle - deep below the earth's surface. In addition, evidence can be seen of continental drift and geological processes that have dominated the earth's surface for many millions of years. The Oman Geoheritage Guide is your personal guide to the wonders of geology in Oman. The app is providing information to single points of interest, as well as geological tours. The Geoheritage Guide