Assertion: volcano's magma | /r/CapableOf | rise to the surface
Facets:
Source sentences:
text: As water is excluded from the conduit and further gas rich magma rises to the surface the fire fountaining rapidly builds a scoria cone.
text: This creates hot, buoyant magma that then rises toward the surface.
text: T he essential feature of a composite volcano is a conduit system through which magma from a reservoir deep in the Earth's crust rises to the surface.