Linked from

The 16 pages that link to Oceanic trench, each with the reason it gives.

• Volcanic arcRelated: The trench marks the surface edge of the subduction system that feeds an arc.

• Convergent boundaryRelated: The descending plate creates a deep surface trough at many oceanic convergent boundaries.

• Accretionary wedgeRelated: The wedge accumulates on the landward side of the trench.

• Wadati–Benioff zoneRelated: The shallow end of the dipping seismic plane starts at the trench axis.

• ForearcRelated: The trench marks the seaward edge of the forearc.

• Ring of FireRelated: Trenches like the Peru–Chile and Mariana mark the outer edge of the ring.

• Seafloor spreading hypothesisRelated: The disposal end of the conveyor, balancing crust created at ridges.