Journey to the Center of the Earth (2008 direct-to-video film) Earth's crust and into the very mantle of the Earth. This is where the operators encounter hidden dangers awaiting them at the Earth's core. The team has to deal with prehistoric creatures in order to both save the research team and to return safely to the surface of the Earth. Journey to the Center of the Earth (2008 direct-to-video film) Journey to the Center of the Earth (released in the UK as Journey to Middle Earth) is a 2008 direct-to-DVD film created by The Asylum and directed by David Jones and Scott Wheeler. The film is a loose adaptation of
Crust (geology) physical properties are unknown, as are the igneous mechanisms that formed them. This is because it is difficult to study: none of Earth's primary crust has survived to today. Earth's high rates of erosion and crustal recycling from plate tectonics has destroyed all rocks older than about 4 billion years, including whatever primary crust Earth once had. However, geologists can glean information about primary crust by studying it on other terrestrial planets. Mercury's highlands might represent primary crust, though this is debated. The anorthosite highlands of the Moon are primary crust, formed as plagioclase crystallized out of the Moon's initial