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A trio of recent Atlantic articles all mention geologic history? What a gneiss surprise!
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Atlantic Trivia
Asteroids
Boulders
Epochs
The asteroid that annihilated the dinosaurs hit Earth 66 million years ago at the tip of what geographic landform?
It separates a gulf from a sea.
And by the way, did you know that in addition to the fan-favorite Triassic, Jurassic, and Cretaceous, the Pennsylvanian and Mississippian are both geologic periods? Elsewhere in the world, the two are together known as the Carboniferous Period, but dramatic changes in North America about 323 million years ago justify subdivision among U.S. geologists.
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This was well before the dinosaurs, but the period’s foot-long cockroaches would still have given Spielberg plenty to work with in Pennsylvanian Park.
See you tomorrow!
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