Lithosphere 50–140 km thick (but beneath the mid-ocean ridges is no thicker than the crust), while continental lithosphere has a range in thickness from about 40 km to perhaps 280 km; the upper ~30 to ~50 km of typical continental lithosphere is crust. The mantle part of the lithosphere consists largely of peridotite. The crust is distinguished from the upper mantle by the change in chemical composition that takes place at the Moho discontinuity. Oceanic lithosphere consists mainly of mafic crust and ultramafic mantle (peridotite) and is denser than continental lithosphere, for which the mantle is associated with crust made of
The Good Earth (film) The Good Earth (film) The Good Earth is a 1937 American drama film about Chinese farmers who struggle to survive. It was adapted by Talbot Jennings, Tess Slesinger, and Claudine West from the play by Owen Davis and Donald Davis, which was in itself based on the 1931 novel of the same name by Nobel Prize-winning author Pearl S. Buck. The film was directed by Sidney Franklin, with uncredited contributions by Victor Fleming and Gustav Machaty. The film stars Paul Muni as Wang Lung. For her role as his wife O-Lan, Luise Rainer won an Academy Award for Best Actress.