Other Features
Besides pingos, the Landmark contains an excellent example of massive ice. One section of the frozen groundwater, part of an eroded hillside by the sea, is over 500 m (1,600 ft) long, and 10 m (33 ft) high. Other less visible ice beds in the region are over 40 m (130 ft) thick. This type of ice is found in permafrost, and can be thousands of years old.
Other features of a permafrost environment can be found in the Landmark, including wedge ice. These are vertical masses of ice that form after water freezes in the cracks around ground that has contracted due to extreme cold. When ice wedges connect to one another, they can form tundra polygons, which are also visible at Pingo National Landmark.
Read more about this topic: Pingo National Landmark
Famous quotes containing the word features:
“Art is the child of Nature; yes,
Her darling child, in whom we trace
The features of the mother’s face,
Her aspect and her attitude.”
—Henry Wadsworth Longfellow (1807–1882)
““It looks as if
Some pallid thing had squashed its features flat
And its eyes shut with overeagerness
To see what people found so interesting
In one another, and had gone to sleep
Of its own stupid lack of understanding,
Or broken its white neck of mushroom stuff
Short off, and died against the windowpane.””
—Robert Frost (1874–1963)