Assertion: oceanic crust | /r/HasProperty | created at mid-ocean ridges
Facets:
value: as mantle material upwells
type: MANNER
value: continuously
type: TEMPORAL
Source sentences:
text: Oceanic crust is continuously being created at mid-ocean ridges.
text: Oceanic crust is created at mid-ocean ridges as mantle material upwells and undergoes pressure-release melting in response to ongoing seafloor spreading.