For 10 points, name this liquid portion of the Earth that is located below the mantle and above the inner core.
This region is labelled E in the Jeffreys-Bullen model, and its upper boundary is home to ultra-low velocity zones. This region, whose density is between ten and twelve grams per centimeter cubed, is responsible for shadow zones. Located below some post-perovskite and the D-double-prime layer, this 2300 kilometer thick region is beneath the Gutenberg discontinuity. An uppercase "K" is used to denote a seismic wave that is refracted through this region. Earth's magnetic field is generated by an internal dynamo that is supported by convection in this region. For 10 points, name this liquid portion of the Earth that is located below the mantle and above the inner core.
This region is labelled E in the Jeffreys-Bullen model, and its upper boundary is home to ultra-low velocity zones.
outer core [prompt on "core;" do NOT accept "inner core"] 