Periglacial features associated with permafrost-affected (Cryosolic) soils in the Yukon Territory

View a larger version of this image (jpg).  (Massive Ground Ice)
Massive Ground Ice
Massive Ground Ice. Soil can develop on top of melting snow and ice. Ground ice can also form within soil in the form of horizontal ice lenses and vertical ice wedges.


View a larger version of this image (jpg).  (Polygonal ground (ice wedge polygons).)
Polygonal ground (ice wedge polygons).
Polygonal ground (ice wedge polygons).


View a larger version of this image (jpg).  (Ice Wedges)
Ice Wedges
Ice Wedges. This ice wedge is dark colored because dirt and dust become concentrated as the snow and ice melt. This ice wedge is probably a remnant of a previous ice age.


View a larger version of this image (jpg).  (Cryoturbation (frost chruning).)
Cryoturbation (frost chruning).
Cryoturbation (frost chruning).


View a larger version of this image (jpg).  (Patterned ground (sorted nets))
Patterned ground (sorted nets)
Patterned ground (sorted nets). Rock and rubble accumulates along the edge of sorted nets.