Which outcome occurs when excessive sediment deposition obstructs proglacial lakes?

💡 Explanation

Episodic outburst floods occur due to increased hydrostatic pressure exerted on confining sediment due to the mechanism of ice damming. A jökulhlaup will occur because the ice dam eventually fails, therefore discharge increases abruptly rather than forming typical moraines or accelerating mineral dissolution.

• Which process drives magma differentiation at subduction zones?
• Which consequence results when coastal upwelling ceases near a major fishing ground?
• Which process initiates hydrothermal vent formation along oceanic transform faults?
• Which effect occurs when air masses move poleward from subtropical high-pressure zones, deflected by the Coriolis force?
• Which process drives the abyssal circulation pattern in the deep ocean?
• Which outcome accelerates when thawing permafrost increases soil saturation on a hillside?