Frannie Comstock
Contributor
Frannie Comstock is a writer based in Chicago.
Primary Contributions (46)
What is the Richat Structure? The Richat Structure is a large geographic feature with concentric rings located in the Sahara near Ouadane, Mauritania. It is an uplifted geological dome formed by molten rock during the Cretaceous Period. Why was the Richat Structure initially thought to be an impact…
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