Subduction zones are the most important sites of material exchange between the crust and mantle on Earth. They are also the ...

Earth's crust may "drip" into its middle layer under ... and a mix of clay and the polymer for the more rigid upper mantle, topping it off with a silica-and-ceramic "crust." When left to sit ...

The upper mantle is hard but below that is semi-molten rock called magma. Crust The crust is the outer layer of the Earth on which we live. It is the thinnest layer and is between 5 and 90 km thick.

With an underlying universal theme of convection, a new textbook introduces upper-level geology, geophysics, physics, and engineering students to the geophysics behind the Earth System.

Venus—a hot planet pocked with tens of thousands of volcanoes—may be even more geologically active near its surface than ...

It’s not much of a stretch to say that Earth’s inner structure, especially the innermost spherical core, has stupefied ...

The processes led to the lithosphere, which consists of the Earth's crust and upper mantle, thinning and extending seaward. The NCC was specifically studied, but "the North American craton ...

Scientists uncover surprising evidence that the Kerguelen hotspot, responsible for the 5,000-kilometer-long Ninetyeast Ridge, ...

The transition between the upper and lower mantle occurs ... useful to trace how surface material like the crust is recycled in Earth's mantle through geologic time. Using this new technique ...

Others have suggested that the blobs are huge chunks of oceanic crust that were pushed into the mantle when one tectonic plate slipped under another — a process known as subduction. The crust ...