Assertion: volcano's vent | /r/HasProperty | blocked by cooled
Facets:
value: under pressure
type: CAUSE
Source sentences:
text: Such geographical features are formed when the vent of the main volcanic edifice (i.e. Hoodoo Mountain) is blocked by cooled and solidified lava, forcing magma to intrude into the lines of weakness at the side of the main volcanic edifice under pressure.