the upper mantle and the lower mantle. The boundary between the two lies about 465 miles (750 kilometers) beneath the Earth's surface. The crust is the outermost layer of the Earth. It is the ...

A new study shows that the inner core changed shape in just a few decades, challenging previous assumptions and revealing ...

According to the new research, these sunken supercontinents appear to be different from the surrounding remains of subducted crust ... at the boundary between the Earth's core and mantle.

(This includes the crust and uppermost part ... At divergent boundaries in the oceans, magma from deep in the Earth's mantle rises toward the surface and pushes apart two or more plates.

Research on hidden structures deep within Earth’s mantle challenges theories about our planet’s middle layer and could ...

A team of geologists and mineral physicists at Harvard University, the University of California, Argonne National Laboratory ...

New crust is continually being pushed away from divergent boundaries (where sea-floor spreading occurs), increasing Earth's surface. But the Earth isn't getting any bigger. What happens, then, to ...

Scientists of course cannot cut into Earth and directly observe its insides. Instead, their knowledge is inferred from the ...

At divergent boundaries, plates move away from each ... data reveals five zones of low resistivity in the underlying crust and mantle, indicative of the presence of fluids. These fluid-rich ...

The Earth is made of different layers: the core, mantle and crust. Plate tectonic theory ... which forms the tectonic boundary between the Pacific Plate and the North American Plate.