Which outcome occurs when increased sediment accumulation exceeds a subduction trench's compressive strength?

💡 Explanation

An accretionary wedge forms due to sediment buildup exceeding the trench's ability to compress, causing material to shear and accumulate via the mechanism of plastic deformation. Therefore deposition creates layers, rather than affecting convection, eruption rates, or wave propagation.

• Which outcome occurs when pore pressure rises rapidly during seismic shaking?
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