Tuesday , April 7 2020

Tag Archives: Towers

Cities Of Otherworldly Towers Are Actually Sand Tufas

You could be forgiven for thinking that the otherworldly rock formations in these pictures come from another planet, or from a sci-fi movie perhaps. But they’re actually called sand tufas and they come from right here on earth. A tufa is a peculiar form of calcium carbonate, and they’re created …

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