It is divided into inner and outer parts.
One part of this layer was discovered by Inge Lehmann, and just above this layer is the Gutenberg Discontinuity. S waves are completely absent in this region, which lies beneath the D-Double-Prime layer. Part of this layer is made of nickel-iron fluid whose (*) eddy currents are responsible for the Earth's magnetic field. The lowest part of this layer is solid because of intense pressure. It is divided into inner and outer parts. For 10 points, name this layer of the Earth that is beneath the mantle and forms the planet's center.
One part of this layer was discovered by Inge Lehmann, and just above this layer is the Gutenberg Discontinuity.
the {core}