Which slope deformation process accelerates when permafrost thaws on arctic hillsides?

💡 Explanation

When permafrost thaws, thaw water saturates the overlaying active layer soils, decreasing friction and increasing pore pressure, driving solifluction. Therefore, saturated soil causes gradual downslope creep, rather than lava domes, desertification, or calving which involve distinctly different settings and mechanisms.

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