Most mountain ranges have a thick foundation of buoyant crustal rock, which makes them float high above the denser, underlying mantle.
(Most mountain ranges; have; a thick foundation of buoyant crustal rock, which makes them float high above the denser, underlying mantle) (a thick foundation of buoyant crustal rock; makes; them float high above the denser) Context(a thick foundation of buoyant crustal rock makes,List([26, 81))):(them; float high; L:above the denser)
a thick foundation of buoyant crustal rock makes,List([26, 81))
Most mountain ranges a thick foundation of buoyant crustal rock them
have makes float high
a thick foundation of buoyant crustal rock, which makes them float high above the denser, underlying mantle
them float high above the denser
L:above the denser