accretionary prism
C10859
concept
An accretionary prism is a wedge-shaped mass of sediment and rock scraped off a subducting tectonic plate and accumulated at a convergent plate boundary.
Aliases (1)
- accretionary complex ×1
Instances (3)
- Southern Uplands accretionary prism
- Southern Uplands terrane
- Franciscan Complex ("accretionary complex")