Orogenous Zones: How Rock Flows

by |October 13, 2014

The architects of Columbia’s modern Northwest Tower, at the corner of Broadway and 120th Street, made good use of some beautiful stones. In their polished and swirling surfaces, they tell a story of the clash of continents and the processes by which mountains are made. Professor David Walker of the Lamont Doherty Earth Observatory leads us on Part 5 of the Columbia Geology Tour.

Coming next week: In a stairwell, the alpha predator of the Ordovician. (You can watch all of the videos on YouTube here.)

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