Mantle (geology) Mantle (geology) The mantle is a layer inside a planetary body bounded below by a core and above by a crust. Mantles are made of rock or ices, and are generally the largest and most massive layer of the planetary body. Mantles are characteristic of planetary bodies that have undergone differentiation by density. All terrestrial planets (including Earth), a number of asteroids, and some planetary moons have mantles. The Earth's mantle is a layer of silicate rock between the crust and the outer core. Its mass of 4.01 × 10 kg is 67% the mass of the Earth. It has
The Core out to lunch," he added. The Core The Core is a 2003 American science fiction disaster film directed by Jon Amiel and starring Aaron Eckhart, Hilary Swank, Delroy Lindo, Stanley Tucci, Tchéky Karyo, DJ Qualls, Bruce Greenwood and Alfre Woodard. The film focuses on a team whose mission is to drill to the center of the Earth and set off a series of nuclear explosions in order to restart the rotation of the Earth's core. The film was released on March 28, 2003 by Paramount Pictures. Geophysicist Dr. Josh Keyes (Aaron Eckhart) and scientists Dr. Serge Leveque (Tchéky Karyo) and