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
What on Earth! and "Hot Stuff", and marked the first time NFB films had been sold to a major American television network. The films aired on ABC in the fall of 1971 as part of the children's television show "Curiosity Shop", executive produced by Chuck Jones. What on Earth! What on Earth! (French: "La Terre est habitée!") is a 1966 National Film Board of Canada animated short co-directed by Les Drew and Kaj Pindal. The film is a mockumentary, introduced in its opening credits as produced by the "National Film Board of Mars" that takes a humorous look at car culture from the