Assertion: hot spot | /r/CreatedBy | narrow stream of hot mantle
Facets:
Source sentences:
text: Hotspots are thought to be caused by a narrow stream of hot mantle convecting up from the Earth's core–mantle boundary called a mantle plume,
text: Hotspots are thought to be caused by a narrow stream of hot mantle convecting up from the Earth's core–mantle boundary called a mantle plume.