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Meaning of accretionary prism

Source language: EnglishDictionary language: English

accretionary prism

noun

Definitions

The accumulation of surface sediment formed between a subducting oceanic crustal plate and a continental tectonic plate, as it is scraped from off the top of the oceanic crustal plate.

Sources:https://en.wiktionary.org/wiki/accretionary%20prism https://en.wiktionary.org/wiki/accretionary%20wedge