Which mechanism causes the formation of lobate landforms associated with solifluction on Arctic slopes?

💡 Explanation

When saturated soil thaws during warmer periods, differential frost heave and thaw rates create an unstable surface because the varying soil types thaw and settle unevenly, generating lobes of partially thawed material that creep downslope. Therefore lobate landforms result, rather than weathering, pressure, or deposition which represent alternative processes.

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