King's Trough: How a shifting plate boundary and hot mantle material shaped an Atlantic mega-canyon

The King's Trough Complex is a several-hundred-kilometer-long, canyon-like system of trenches on the North Atlantic seafloor.
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North America is 'dripping' down into Earth's mantle, scientists discover

Seismic mapping of North America has revealed that an ancient slab of crust buried beneath the Midwest is causing the crust ...