Which process MOST accelerates alluvial fan formation at a fault-bounded mountain front?

💡 Explanation

When mountain front experiences rapid tectonic uplift, increased gravitational potential energy causes amplified mechanical erosion and sediment supply directly into adjacent basin because runoff has greater erosive power. Therefore, the rapid uplift greatly accelerates alluvial fan progradation, rather than decreased weathering (which requires long timescales),vegetative stabilisation or reduced flow (which would inhibit fan creation).

• Which outcome accelerates soil erosion in Arctic regions undergoing permafrost thaw?
• Which mechanism causes deflection of ocean gyres formed along continental eastern boundaries?
• Which landform evolution results when multiple cirques erode different sides of a mountain?
• Which depositional outcome results from decreased glacial ablation?
• Which risk increases in a caldera following resurgent dome formation?
• Which effect causes increased coastal erosion when vegetation is removed by storms or development?