Sunken slabs from long-lost tectonic plates are still churning around in Earth's interior, far below your feet. In a new study, geologists have attempted to map the base of the mantle, close to where ...

An international research collaboration has harnessed supercomputing power to better understand how massive slabs of ancient ocean floors are shaped as they sink hundreds of kilometers below Earth's ...

An ancient slab of Earth's crust buried deep beneath the Midwest is sucking huge swatches of present-day's North American crust down into the mantle, researchers say. The slab's pull has created giant ...

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