Which process accelerates cirque formation beyond equilibrium slopes?

💡 Explanation

Frost wedging sharply accelerates cirque erosion because ice expansion fractures the bedrock, rather than glacial abrasion alone. Therefore, headwall retreat quickens rather than slower abrasion caused by debris or uplift diminishing freeze-thaw cycles.

• Which mechanism disrupts thermohaline circulation significantly when Greenland ice melt increases drastically?
• Which outcome is most directly driven where desert deflation removes fine sediments?
• Which cascading effect occurs when the Walker circulation weakens during an El Niño event across pacific ocean?
• Which phenomenon causes increased desert aridity when subtropical high-pressure cells strengthen?
• Which outcome occurs when rapid groundwater extraction lowers the potentiometric surface in karst regions?
• Which risk increases when glacial outflow enters warmer seawater?