Quarry: Wikis


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From Wikipedia, the free encyclopedia

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 colocated with concrete and asphalt plants due to the requirement for large amounts of aggregate in those materials.



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

An abandoned limestone quarry

Types of rock extracted from quarries include:

See also


External links

1911 encyclopedia

Up to date as of January 14, 2010

From LoveToKnow 1911

QUARRY. (1) (Through Fr. from med. Lat. quareia for quadraria; quadrare, to square or hew stone), a place from which stones are dug, the term being usually confined to a place where such operation is carried on in the open air, as opposed to a "mine" (see Quarrying). (2) (Through O. Fr. cuiree, cuir, skin, leather, Lat. corium; cf. mod. Fr. curee, spoils), properly certain parts of a deer or other beast of chase given as a reward to the hounds and placed upon the hide of the animal, also parts of a bird given similarly to a hawk or falcon. The word is thus applied to the animal hunted or the bird killed by the hawk, and generally to any object of the chase.

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Simple English

A quarry for marble, in Greece

A Quarry is a type of open pit mine that is used to get rocks and minerals from the ground. Quarries are often used to cut stone from the ground in large pieces or blocks. These are called dimension stones. They are used for building things. Some quarries fill with water to make small lakes when they are no longer being used for mining.

The largest granite quarry in the world is run by Rock of Ages Corporation in Vermont, USA..[1]

Other pages


  1. "ROCK OF AGES". Central Vermont Chanber of Commerce. http://www.central-vt.com/visit/stories/rockofages.pdf. Retrieved 21 October 2010. 


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