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What is an accretionary wedge briefly describe its formation?

User CCurtis
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Accretionary wedge is formed when sediments accreted to the non subducting tectonic plate at a convergent plate boundary. Materials in the accretionary wedge are usually marine sediments that are scrapped off from the down going slabs of oceanic crust. Elevated regions within the ocean basin are transported towards the subduction zones and accreted to the continental margin.
User ISaumya
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