Located at the core-mantle boundary, the D'' layer is the lowermost part of the mantle and is composed of a mixture of peridotite and iron. It plays an important role in the convection of heat from the core to the mantle.
Located at the core-mantle boundary, the D'' layer is the lowermost part of the mantle and is composed of a mixture of peridotite and iron. It plays an important role in the convection of heat from the core to the mantle.