A long-lost slab of Earth’s crust may be pulling away the bottom of the oldest part of North America, scientists say ...

As you read this, the North American continent’s underside is dribbling away into Earth’s molten mantle. And according to ...

For example, the North China Craton lost its deepest root layer millions ... important zone between the deep mantle and the shallower lithosphere where we would expect to get clues on what's ...

But as a result of being the most ancient pieces of Earth’s lithosphere (containing ... the oldest pieces of continental crust—the North China Craton (NCC)—had slowly been disintegrating ...