Assertion: hot spot | /r/HasProperty | place
Facets:
value: within the mantle
type: LOCATION
Source sentences:
text: Tectonic movement of the North American Plate has thinned Earth’s crust in the area, forming a hot spot (a place where a dome of magma, or molten rock, comes close to the surface).
text: Hot spots are places within the mantle where rocks melt to generate magma.