Assertion: continent's region | /r/HasProperty | floored by oceanic crust
Facets:
Source sentences:
text: Continents must have high elevation relative to regions floored by oceanic crust; a broad range of siliceous igneous, metamorphic, and sedimentary rocks; thicker crust and lower seismic velocity structure than oceanic crustal regions; and well-defined limits around a large enough area to be considered a continent rather than a microcontinent or continental fragment.
text: Continents must have high elevation relative to regions floored by oceanic crust; a broad range of siliceous igneous, metamorphic, and sedimentary rocks; thicker crust and lower seismic velocity structure than oceanic crustal regions; and well-defined limits around a large enough area to be considered a continent rather than a microcontinent or continental fragment.