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

Earth's crust may "drip" into its middle layer under growing mountain ranges. This odd process, called lithospheric dripping, has been proposed to occur under the Andes, in Central Asia, in the U ...

Picture the Earth’s crust and you most probably think of dense, dry rock. You don’t imagine a goey, honey-like substance trickling down into the planet’s deep underbelly. And yet, new ...