Assertion: lithosphere's crust | /r/CapableOf | act as buttress
Facets:
value: to a growing accretionary wedge
type: TRANSITIVE-OBJECT
Source sentences:
text: The forearc consists of igneous and metamorphic crust, and this crust may act as buttress to a growing accretionary wedge (formed from sediments scraped off the top of the downgoing plate).