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North America's 'broken heart': The billion-year-old scar from when the continent nearly ripped apart
The Midcontinent Rift is a giant tear that formed in what is now the U.S. Midwest 1.1 billion years ago. Nicknamed North America's "broken heart," it is filled with solidified magma and lava.
An aerial image shows a part of Turkana South Island in Lake Turkana, the world's largest desert lake, in northern Kenya.AFP— ...
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