Which erosional outcome is accelerated when cryoturbation destabilizes a cirque headwall?

💡 Explanation

Enhanced bergschrund formation proceeds as cryoturbation weakens the cirque, therefore weakened permafrost causes rockfalls into the trench, rather than altered features as it deepens because eschers involve meltwater streams.

• Which effect occurs due to overriding plate deformation?
• In periglacial regions with significant solifluction, creating elevated roads requires which additional mitigation measure to maintain stability?
• Which impact on South American fisheries results when El Niño-Southern Oscillation (ENSO) reduces coastal upwelling?
• Which consequence results when rapid aggradation overwhelms river levees?
• Which mechanism causes the formation of highly permeable aquifers within an alluvial fan?
• Which mechanism causes increased flood frequency in populated regions near alluvial fans after prolonged drought?