Home > Terms > English, UK (UE) > Accretionary wedge

Accretionary wedge

A prism of deformed sediments in the upper plate of a subduction zone near the deformation front, formed in part by accretion of sediments of the downgoing plate, but also including sediments derived from the interior of the upper plate.

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  • Part of Speech: noun
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  • Industry/Domain: Earth science
  • Category: Seismology
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