pingo: Quick Facts

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Diagram comparing open-system and closed-system pingos, showing cross-sections of dome-shaped hills formed in permafrost. The left side illustrates open-system pingo formation with artesian pressure pushing water upward beneath discontinuous permafrost, forming an ice lens and raising the ground. The right side shows closed-system pingo formation, where advancing permafrost traps water from a residual lake, creating hydrostatic pressure that forms an ice lens and lifts the surface. Both processe

Pingo (hill caused by upheaval of permafrost) in the Mackenzie River delta near Tuktoyaktuk, northwestern Northwest Territories, Can.

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Topics

closed-system pingo open-system pingo hydrolaccolith permafrost hill monadnock drumlin thermokarst inselberg kame pepino hill mesa butte tell sídh

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