That part of this structure consists of nickel and iron and lies beneath the mantle.
The hypothesis that this structure consists of two separate parts was put forth by Inge Lehmann. Some scientists believe that it rotates at a different speed than the rest of the Earth. S-waves cannot travel through one part of this structure. Convention in one part of this structure creates a magnetic field which deflects the solar wind. That part of this structure consists of nickel and iron and lies beneath the mantle. For 10 points, name this innermost layer of the Earth.
The hypothesis that this structure consists of two separate parts was put forth by Inge Lehmann.
core