Assertion: volcano's magma | /r/CapableOf | move toward the surface
Facets:
value: quite rapidly
type: MANNER
value: slowly
type: MANNER
Source sentences:
text: If magma moves slowly toward the surface, its dissolved gases will be released slowly and can escape.
text: During the 1991 Plinian-type eruption of Mount Pinatubo, magma moved quite rapidly toward the surface, resulting in retention of most of the dissolved gases.