Cape Verde Hotspot Formed Great Lakes
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old volcanoesLive Science
•Scientists discover ancient 'hotspot' that birthed the Great Lakes 300 million years ago
78% Informative
The Great Lakes formed 20,000 years ago thanks to a hotspot that sat under the supercontinent Pangaea .
The Cape Verde hotspot heated and stretched the crust under the spot that would eventually become the Great Lakes .
This process led to a low spot in the topography of the region, which glaciers later scraped out during the ice age.
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