Which landscape feature dominates when nivation weathers steep cirque headwalls extensively?

💡 Explanation

When nivation (freeze-thaw weathering) acts extensively on cirque headwalls, it creates tiered benches due to differential erosion along lines of weakness because ice lens growth pries away rocks. Therefore stepped, rock benches result, rather than hanging valleys, horns/aretes, or alluvial fans because these features don't arise directly from headwall nivation.

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