Which slope instability process accelerates cirque formation in periglacial environments with freeze-thaw cycles?

💡 Explanation

When freeze-thaw cycles occur in cirques, repeated ice lens growth disrupts the regolith through frost heave, saturating it with meltwater and driving solifluction because this weakens the material. Therefore solifluction increases, rather than creep, rockfall, debris flow which depend on different geomorphic drivers.

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