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A stalactite (UK: / ˈ s t æ l ə k ˌ t aɪ t /, US: / s t ə ˈ l æ k t aɪ t /; from Ancient Greek σταλακτός (stalaktós) 'dripping', from σταλάσσειν (stalássein) 'to drip') [1] is a mineral formation that hangs from the ceiling of caves, hot springs, or man-made structures such as bridges and mines.
Calthemite straw stalactite growing from the concrete ceiling of an undercover car-park Calthemite straw stalactites, the rightmost example demonstrating bending due to the direction of air currents during its formation. Calthemite is a secondary deposit, derived from concrete, lime, mortar or other calcareous material outside the cave environment.
Henge earthworks are those that consist of a flat area of earth in a circular shape that are encircled by a ditch, or several circular ditches, with a bank on the outside of the ditch built with the earth from inside the ditch. They are believed to have been used as monuments for spiritual ritual ceremonies.
A cave survey is a map of all or part of a cave system, which may be produced to meet differing standards of accuracy depending on the cave conditions and equipment available underground. Cave surveying and cartography , i.e. the creation of an accurate, detailed map, is one of the most common technical activities undertaken within a cave and ...
Stake out lot corners, stake limit of work and stake location of construction trailer (clear of all excavation and construction) Stake out reference points and markers that will guide the construction of new structures; Verify the location of structures during construction; Provide horizontal control on multiple floors
These columns, referred to as stalagnates, are formed by stalactites and stalagmites growing together and give the appearance of a forest with gnarled oak trunks. Within this collection is a stalactite formation known as the "Lovers". In a showcase within this area, the bones of cave bears are on display. Afterwards, the visitor goes up a ...
Luray Caverns, previously Luray Cave, is a cave just west of Luray, Virginia, United States, which has drawn many visitors since its discovery in 1878.The cavern system is adorned with speleothems such as columns, mud flows, stalactites, stalagmites, flowstone, and mirrored pools.
Map of the cave Oregon Caves National Monument and Preserve is in the Siskiyou Mountains , a coastal range that is part of the Klamath Mountains of northwestern California and southwestern Oregon. The monument consists of 484 acres (196 ha) [ 5 ] in the Rogue River – Siskiyou National Forest , about 6 miles (10 km) north of the Oregon ...