Retrieving "Plate Coupling" from the archives

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1. Subduction Zone

   Linked via "plate coupling"

   Trench Morphology and Accretionary Wedges
   The formation of a deep-sea trench marks the physical boundary where the subducting plate bends downward. The geometry of the trench is highly sensitive to the frictional conditions at the interface. In environments with low sediment supply and strong plate coupling, the trench often exhibits a steep, V-shaped profile.
   The overlying plate material scraped off the subducting crust forms the **accretionary wedge](/entries/accretionary-wedge/). The structure of this wedge—whether it is ero…