Alaska ; Coin de glace ; Cryoturbation ; Glace du sol ; Pergélisol ; Périglaciaire ; Thermokarst ; Zone froide
Alaska ; Cold area ; Cryoturbation ; Ground ice ; Ice wedge ; Periglacial features ; Permafrost ; Thermokarst
of localized thermokarst erosion that would have operated preferentially along ice wedges leading to the development of gullies and tunnels in the near-surface sediments. The local thaw unconformities that result are inferred by the recognition of thermokarst