Assertion: lithosphere's crust | /r/HasProperty | basalt
Facets:
value: mainly
type: DEGREE
Source sentences:
text: Oceanic crust: The crust below the oceans is relatively thin (3 to 4 miles) and is composed mainly of basalt .
text: Continental crust is lighter than oceanic crust which is made of basalt and gabbro.
text: The crust is composed of two basic rock types granite and basalt.
text: The crust is composed of two basic rock types granite and basalt.
text: Oceanic crust is composed primarily of basalt and gabbro.
text: As we mentioned earlier, the oceanic crust is made of basalt, which is a really thick rock, and this can press into the mantle and then fill with water.