Assertion: volcano's eruption | /r/CapableOf | form caldera
Facets:
value: almost always
type: TEMPORAL
value: several kilometres
type: LOCATION
value: in diameter
type: OTHER
value: over the eruption site
type: LOCATION
Source sentences:
text: Effusive eruptions form lava plateaus or gently sloping shield volcanoes; moderately explosive eruptions form stratovolcanoes; and giant explosive eruptions form plateaus of lava or ash flows and almost always form a caldera several kilometres in diameter over the eruption site.
text: Although a stratovolcano by composition, the pre-existing mountain collapsed in a major eruption forming the caldera.