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Wind Cave National Park Frostwork
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Wind Cave National Park
Speleothems - Frostwork
 
Frostwork
NPS Photo
Frostwork
 
Delicate needle-like growths of calcite or a related mineral, aragonite, are called frostwork. In places the frostwork may grow on top of cave popcorn or boxwork. The origin of frostwork is controversial. In Wind Cave, it seems to concentrate in passages with above average airflow where, it is thought, evaporation plays a role in its formation.
 

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Sign used at Wind Cave in 1903 when the cave became a national park.

Did You Know?
Wind Cave is the first cave in the world to be designated as a national park. That occurred on January 9, 1903.

Last Updated: February 03, 2007 at 11:06 MST