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.

• Which distribution pattern results when coastal upwelling intersects with a subtropical gyre system?
• Which consequence results when longshore drift encounters a deepwater submarine canyon?
• Which effect impedes infrastructure development in regions experiencing active solifluction?
• Which mechanism causes deep-focus earthquakes at subduction zones along the Wadati-Benioff zone?
• Which risk increases during the earthquake cycle phase known as the interseismic period at a subduction zone?
• Which risk increases when constructing structural foundations on sloping alluvial deposits?