Assertion: oceanic crust | /r/MadeOf | rock
Facets:
value: mostly
type: DEGREE
Source sentences:
text: The continental crust is made mostly of rocks with a composition similar to granite (a light-colored rock you would expect to find in the Sierra Nevada), whereas the oceanic crust is made mostly of rocks with a composition of basalt (a dark- colored rock, like the rocks that make up the Hawaiian volcanoes).