Which process predominantly shapes the bathymetry of a fjord immediately after deglaciation?

💡 Explanation

When glaciers retreat from a fjord, substantial sedimentation from glacial meltwater occurs from the unloading of sediment stored in/on the glacier which flows into the fjord. Therefore sedimentation results, rather than isostatic rebound (slow), marine erosion (relatively slow), or tectonic uplift (extremely slow generally).

• Which outcome occurs when excessive sediment deposition obstructs proglacial lakes?
• Which outcome occurs when a glacial lake outburst?
• Which mechanism causes increased liquefaction risk during seismic shaking of unconsolidated coastal sediments?
• Which consequence occurs when prolonged river sedimentation exceeds levee subsidence in a delta?
• Which process primarily influences fjord deepening as the overlying ice mass undergoes ablation?
• Which outcome results when shallow crust fault locking exceeds shear stress limits?