Assertion: seamount | /r/HasProperty | formed at hotspot
Facets:
value: random areas of the seafloor
type: LOCATION
Source sentences:
text: Seamounts are also formed at ‘hotspots’, random areas of the seafloor which see volcanic activity.
text: Some seamounts and ocean islands are formed above a mantle plume or hot spot — a place where hot mantle material rises in a stationary and semi-permanent plume, and affects the overlying crust.
text: Over geologic time, the crust cools and subsides, the seamount sinks and another seamount is formed over the same hotspot.