If the earth is billions of years old, heat should be uniformly distributed over time, and there is no explanation as to why this giant chunk is so cool. The Bible provides a solution for this mystery.
Noah’s flood gives evidence for rapid continental movement. Continents moved, plunging the pre-flood ocean rock layers deep within the Earth. This explains how a large cooler area of rock could exist deep within the Earth. It also means the Earth could not possibly be millions of years old.
(Source: Censored Science: Suppress the Evidence, Malone, 2009 pp.74-75)