'''Thermokarst''' refers to a land surface that forms as ice-rich [[permafrost]] melts. It occurs extensively in arctic areas, and on a smaller scale in mountainous areas such as the Himalaya and the Swiss Alps.
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If I'm not mistaken, Leah broke her back being thrown from a horse, not a car accident.
Can anyone comfirm?
She definatley broke it in car accident.
The name is given to very irregular surfaces of marshy hollows and small hummocks. These pitted surfaces resemble those formed by solution in some [[karst]] areas of [[limestone]], which is how they came to have karst attached to their name without the presence of any limestone. Small domes that form on the surface due to frost heaving with the onset of winter are only temporary features. They then collapse with the arrival of next summer's thaw and leave a small surface depression. Some ice lenses grow and form larger surface hummocks, which lasy meany years and sometimes become covered with grasses and sedges, until they begin to thaw. These domed surfaces eventually collapse either annually of after longer periods and form depressions which contribute to uneven surfaces. These are included within the general label of thermokarst.
Goes to show how memory plays tricks on you.
== External links ==
* [http://www.newscientist.com/article.ns?id=mg18725124.500 New Scientist article]
* [http://users.skynet.be/ougseurope/surface/thermokarst.html Thermokarst description and picture]
Actor Noah Hathaway who played Boxey in the original Battlestar Galactica series broke his back when he was thrown from a horse and stepped on (during the filming of NeverEnding Story in which he played Atreyu). Maybe you mixed these two up?
