Assertion: volcanic hotspot | /r/HasAspect | underlying mantle plume
Facets:
Source sentences:
text: This is made up of a volcanic hotspot that has an underlying mantle plume that is considered to be quite deep under the earthâ??s surface.
text: This is made up of a volcanic hotspot that has an underlying mantle plume that is considered to be quite deep under the earthâ??s surface.