
04-22-2026
Purdue researchers uncover deep mantle process that reshaped the North American midcontinent
A hidden rupture deep beneath North America may have reshaped the landscape of the central United States hundreds of millions of years ago. New research led by Purdue University found that a dense part of the continent's deep rocky foundation likely peeled away and sank into the mantle, allowing hotter, lighter material to rise and lift the land above it.