Samples from Hawaii seem to contain material that passed across the boundary between the planet’s core and its mantle, nearly 3,000 kilometres below the surface. Researchers have been challenging the ...

Add Yahoo as a preferred source to see more of our stories on Google. Although more than 99.95% of Earth's gold is locked in the molten core, tiny amounts may be coming up to the surface in magma, a ...

Gold and other precious metals are leaking from Earth’s core into the layers above, eventually making their way up to the surface during the formation of volcanic islands like Hawaii, a new study ...

WASHINGTON (Reuters) - Scientists using an ocean drilling vessel have dug the deepest hole ever in rock from Earth's mantle - penetrating 4,160 feet (1,268 meters) below the Atlantic seabed - and ...