Quarry.html
 
| ca | de | en | es | fr | it | nl | no | pl | pt | ru | ro | fi | sv | tr | vo |


 

 This article does not cite any references or sources.
Please help improve this article by adding citations to reliable sources. Unverifiable material may be challenged and removed. (July 2007)
For other uses, see Quarry (disambiguation).
Portland Stone quarry on the Isle of Portland, England

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. Quarries are usually shallower than other types of open-pit mines.

Contents

Problems

Quarries in level areas often have special engineering problems for drainage. 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 that seeps into the pit is pumped up into the moat.

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

Types of rock

Construction aggregate quarry near Adelaide, South Australia
An abandoned limestone quarry

Types of rock extracted from quarries include:

See also

Wikimedia Commons has media related to:

External links



 This article about mining is a stub. You can help Wikipedia by expanding it.
All Right Reserved © 2007, Designed by Stylish Blog.