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 process primarily initiates cirque formation in mountainous glacial regions?
• Which landform development mechanism explains the sorting of sediment grain sizes within an alluvial fan?
• Which risk increases when long-term creep along a transform fault locks energy without slippage?
• Which mechanism causes mantle heterogeneity near subduction zones as the subducting slab descends?
• Which process causes explosive volcanism near subduction zones where oceanic lithosphere descends?
• Which mechanism causes stream meandering in lowland river systems when cohesive sediment banks are present?