During warm periods, melting of the ice in the soil forms a layer of mud that can slump down to form terraces and lobes through the process of:

Question

Quizplus · Accepted Answer

Gelifluction is the process where melting of the ice in the soil forms a layer of mud that can slump down to form terraces and lobes. Permafrost refers to soil or rock that remains at or below freezing temperature for at least two consecutive years, and ice wedges are formed by freezing and thawing cycles. Melting is too broad and does not specifically describe the process by which the mud slumps down. Therefore, the best choice is C) gelifluction.

During Warm Periods, Melting of the Ice in the Soil