Assertion: volcano's magma | /r/CapableOf | erupt at the surface
Facets:
value: in a fire-fountain
type: LOCATION
Source sentences:
text: Gas-charged magma erupts at the surface in a fire-fountain which may play continuously (Hawaiian style) or pulsate discontinuously (Strombolian style) to build a cone of coarse tephra, commonly referred to as a scoria cone.