Continental drift Continental drift Continental drift is the theory that the Earth's continents have moved over geologic time relative to each other, thus appearing to have "drifted" across the ocean bed. The speculation that continents might have 'drifted' was first put forward by Abraham Ortelius in 1596. The concept was independently and more fully developed by Alfred Wegener in 1912, but his theory was rejected by many for lack of any motive mechanism. Arthur Holmes later proposed mantle convection for that mechanism. The idea of continental drift has since been subsumed by the theory of plate tectonics, which explains that the continents
Ice Age: Continental Drift heat. The first details of the sequel were announced on January 10, 2010, when "The New York Times" reported that Blue Sky was working on a fourth film and was in negotiations with the voice cast. Fox later confirmed on May 5, 2010, that "Ice Age: Continental Drift" would be released on July 13, 2012. A soundtrack album of music by John Powell was released on July 10, 2012 by Varèse Sarabande. In addition to Powell's original score, the film also features Beethoven's 9th Symphony. Powell explained his decision: "At the beginning of the film, the creation of the geographical