Ledenika

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Coordinates: 43°12′16″N23°29′28″E / 43.20444°N 23.49111°E / 43.20444; 23.49111

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The Concert Hall LedenikaCave.jpg
The Concert Hall

Ledenika (Bulgarian : Леденика, English: icy or glacial [1] ) is a cave in the Northwestern parts of the Balkan Mountains, 16 km away from the Bulgarian city of Vratsa. [2] Its entrance is approximately 830 m above sea level. The cave features an abundance of galleries and impressive karst formations including stalactites and stalagmites. [1] It was first discovered around the beginning of the 20th century and has been open to tourists since 1961. [1] Ledenika Peak on Graham Land in Antarctica is named after the cave, in recognition of its cultural importance. [3]

Description

The cave is about 300 m long and contains ten separate halls. Visitors enter through the Antechamber, then pass through several smaller passages into the Concert Hall. Visitors then pass through several more smaller passages, eventually emerging in the White Hall. [2]

The largest gallery is known as the Great Temple, with a ceiling of 15 m (50 ft). [1] The Concert Hall is smaller, but has an enormous variation of stalactites and stalagmites. During the winter, icicles may form on the ceiling. The abundance of icicles in winter is thought to have led to the cave's name, which in English translates to icy or glacial. [1]

Geology

Tourist walkways through Ledenika Ledenika TodorBozhinov (5).JPG
Tourist walkways through Ledenika

The limestone formations in the cave have been dated back to the Pliocene era. [4]

Tourism

The Bulgarian Tourist Union has included Ledenika in their 100 Tourist Sites of Bulgaria, a promotional effort aimed at highlighting the nation's best tourist spots. The cave has been one of the country's most noted caves since it was opened to tourists. In the late 1980s, there were a record 100,000 visitors annually. [2]

See also

Related Research Articles

Stalactite

A stalactite is a type of formation that hangs from the ceiling of caves, hot springs, or manmade structures such as bridges and mines. Any material that is soluble, can be deposited as a colloid, or is in suspension, or is capable of being melted, may form a stalactite. Stalactites may be composed of lava, minerals, mud, peat, pitch, sand, sinter, and amberat. A stalactite is not necessarily a speleothem, though speleothems are the most common form of stalactite because of the abundance of limestone caves.

Stalagmite Elongate mineral formation found on a cave floor

A stalagmite is a type of rock formation that rises from the floor of a cave due to the accumulation of material deposited on the floor from ceiling drippings. Stalagmites are typically composed of calcium carbonate, but may consist of lava, mud, peat, pitch, sand, sinter and amberat.

Speleothem A structure formed in a cave by the deposition of minerals from water

Speleothems, commonly known as cave formations, are secondary mineral deposits formed in a cave. Speleothems typically form in limestone or dolomite solutional caves. The term "speleothem," as first introduced by Moore (1952), is derived from the Greek words spēlaion "cave" + théma "deposit". The definition of "speleothem," in most publications, specifically excludes secondary mineral deposits in mines, tunnels, and other man-made structures. Hill and Forti more concisely defined "secondary minerals" which create speleothems in caves:

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References

  1. 1 2 3 4 5 Scheffel, Richard L.; Wernet, Susan J., eds. (1980). Natural Wonders of the World . United States of America: Reader's Digest Association, Inc. pp.  215. ISBN   0-89577-087-3.
  2. 1 2 3 "Cave "Ledenika"". Amusement park Ledenika. Retrieved 2017-04-08.
  3. "SCAR Composite Gazetteer". data.aad.gov.au. Retrieved 2017-04-08.
  4. Shanov, Stefan; Kostov, Konstantin (2014-09-23). Dynamic Tectonics and Karst. Springer. ISBN   9783662439920.