Which geomorphic outcome occurs because continuous permafrost sharply degrades?

💡 Explanation

Thermokarst occurs due to thawing permafrost; the active layer deepens, causing ground subsidence called thaw settlement, therefore creating depressions and irregular terrain, forming patterned ground, rather than forming eskers/drumlins because permafrost is generally far from active glaciers.

• Which outcome follows accelerated glacial retreat on bedrock?
• Which outcome occurs when a steep mountain slope underlying a glacial cirque thaws, exceeding its angle of repose?
• Which outcome occurs when a substantial landslide obstructs stream flow into a glacial lake?
• Which mechanism causes the formation of karst topography when rainwater infiltrates limestone?
• Clay accumulation increases markedly when which pedogenesis mechanism occurs?
• Which outcome typically results when creeping along slow-slip faults reaches a critical stress threshold?