Quarry


Quarry

A quarry is a type of open-pit mine from which rock or minerals are extracted. Quarries are generally used for extracting building materials, such as dimension stone, construction aggregate, riprap, sand, and gravel. They are often collocated with concrete and asphalt plants due to the requirement for large amounts of aggregate in those materials. The word quarry can include underground quarrying for stone, such as Bath stone.

Quarry
Portland stone quarry on the Isle of Portland, England

Contents

Problems

Quarries in level areas with shallow groundwater or which are located close to surface water often have engineering problems with drainage. Generally the water is removed by pumping while the quarry is operational, but for high inflows more complex approaches may be required. For example, the Coquina quarry is excavated to more than 60 feet (18 m) below sea level. To reduce surface leakage, a moat lined with clay was constructed around the entire quarry. Ground water entering the pit is pumped up into the moat. As a quarry becomes deeper water inflows generally increase and it also becomes more expensive to lift the water higher during removal - this can become the limiting factor in quarry depth. Some water-filled quarries are worked from beneath the water, by dredging.

Many people and municipalities consider quarries to be eyesores and require various abatement methods to address problems with noise, dust, and appearance. One of the more effective and famous examples of successful quarry restoration is Butchart Gardens in Victoria, BC, Canada.

Many quarries naturally fill with water after abandonment and become lakes. Others are made into landfills.

Quarry swimming

Water-filled quarries can be very deep with water, often 50 feet or more, that is often surprisingly cold. Unexpectedly cold water can cause a swimmer's muscles to suddenly weaken; it can also cause shock and even hypothermia.[1] Though quarry water is often very clear, submerged quarry stones and abandoned equipment make diving into these quarries extremely dangerous. Several teenagers and young men and women drown in quarries each year.[2][3] However, many inactive quarries are converted into safe swimming sites.

Types of rock

Delabole Slate Quarry, Delabole, Cornwall, UK
An abandoned limestone quarry

Types of rock extracted from quarries include:

See also

References

External links



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Synonyms:
, / (especially that of the hunting falcon), , /


Look at other dictionaries:

  • quarry — quar‧ry [ˈkwɒri ǁ ˈkwɔː , ˈkwɑː ] noun quarries PLURALFORM [countable] a place where large amounts of stone, sand etc are dug out of the ground: • a granite quarry quarry verb [transitive] : • granite that is quarried in Brazil * * * Ⅰ …   Financial and business terms

  • Quarry — Quar ry, n.; pl. {Quarries}. [OE. querre, OF. cuiri[ e]e, F. cur[ e]e, fr. cuir hide, leather, fr. L. corium; the quarry given to the dogs being wrapped in the akin of the beast. See {Cuirass}.] 1. (a) A part of the entrails of the beast taken,… …   The Collaborative International Dictionary of English

  • Quarry — Quar ry, v. t. [imp. & p. p. {Quarried}; p. pr. & vb. n. {Quarrying}.] To dig or take from a quarry; as, to quarry marble. [1913 Webster] …   The Collaborative International Dictionary of English

  • Quarry — ist der Familienname folgender Personen: Jerry Quarry (1945–1999), US amerikanischer Boxer Mike Quarry (1951–2006), US amerikanischer Boxer Diese Seite ist eine Begriffsklärung zur Unterscheidung mehrerer mit demselben Wort b …   Deutsch Wikipedia

  • quarry — from which stone is extracted [15] and quarry which one hunts [14] are quite different words. The former was borrowed from Old French quarriere, a derivative of *quarre ‘square stone’. This went back to Latin quadrum ‘square’, which was based on… …   The Hutchinson dictionary of word origins

  • quarry — Ⅰ. quarry [1] ► NOUN (pl. quarries) ▪ an open excavation in the earth s surface from which stone or other materials are extracted. ► VERB (quarries, quarried) 1) extract from a quarry. 2) cut into (rock or ground) to obtain …   English terms dictionary

  • quarry — from which stone is extracted [15] and quarry which one hunts [14] are quite different words. The former was borrowed from Old French quarriere, a derivative of *quarre ‘square stone’. This went back to Latin quadrum ‘square’, which was based on… …   Word origins

  • quarry — quarry1 [kwôr′ē, kwär′ē] n. pl. quarries [var. of QUARREL1] a square or diamond shaped piece of glass, tile, etc. quarry2 [kwôr′ē, kwär′ē] n. pl. quarries [ME querre, orig., parts of the prey put on the hide and fed to dogs < OFr cuiree,… …   English World dictionary

  • Quarry — Quar ry, n. [OE. quarrere, OF. quariere, F. carri[ e]re, LL. quadraria a quarry, whence squared (quadrati) stones are dug, fr. quadratus square. See {Quadrate}.] A place, cavern, or pit where stone is taken from the rock or ledge, or dug from the …   The Collaborative International Dictionary of English

  • Quarry — Quar ry, n. [OE. quarre, OF. quarr[ e] square, F. carr[ e], from L. quadratus square, quadrate, quadratum a square. See {Quadrate}, and cf. {Quarrel} an arrow.] Same as 1st {Quarrel}. [Obs.] Fairfax. [1913 Webster] …   The Collaborative International Dictionary of English

  • Quarry — Quar ry, a. [OF. quarr[ e].] Quadrate; square. [Obs.] [1913 Webster] …   The Collaborative International Dictionary of English


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