#Rio2016 & #Geology - Geological map of South America, by Austrian geologist Foetterle, published in 1855 http://pic.twitter.com/k3jXtem7I3
— David Bressan (@David_Bressan) August 5, 2016
via Twitter https://twitter.com/David_Bressan
August 05, 2016 at 09:57PM
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