Cold and Ice, Not Heat, Episodically Gripped Tropical Regions 300 Million Years Ago (IMAGE)

U.S. National Science Foundation

Cold and Ice, Not Heat, Episodically Gripped Tropical Regions 300 Million Years Ago

Caption

Unaweep Canyon in the Rocky Mountains is the site of a deep gorge that reveals ancient landscapes and sediments. The inset image is of a "dropstone" from an eons-old glacier.

Credit

Gerilyn Soreghan

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