Assertion: continent's crust | /r/HasProperty | oceanic
Facets:
Source sentences:
text: Continents can’t be made of oceanic crust.
text: Alfred Wegener, being a meteorologist, had proposed tidal forces and centrifugal forces as the main driving mechanisms behind continental drift; however, these forces were considered far too small to cause continental motion as the concept was of continents plowing through oceanic crust.