This MedLibrary.org supplementary page on Quarry is provided directly from the open source Wikipedia as a service to our readers. Please see the note below on authorship of this content, as well as the Wikipedia usage guidelines. To search for other content from our encyclopedia supplement, please use the form below:
Related Sponsors
 |
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) |
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
Types of rock extracted from quarries include:
- Cinder
- Chalk
- China Clay
- Clay
- Coal
- Coquina
- Construction aggregate (sand and gravel)
- Granite
- Gritstone
- Gypsum
- Limestone
- Marble
- Ores
- Phosphate rock
- Sandstone
- Slate
See also
- Clay pit
- Collecting fossils
- Gravel pit
- Kouloura
- List of minerals
- List of rock types
- List of stones
- Miner
- Mountaintop removal mining
External links
- See How Rock Is Quarried
- Stone Quarries and Beyond: Quarries - Quarry Workers - Stone Cutters & Stone Carvers - Historical Dealers of Stone & the Finished Products
|
||||||||
 |
This article about mining is a stub. You can help Wikipedia by expanding it. |
Wikipedia content modification information:
- This page was last modified on 20 November 2008, at 17:15.
Wikipedia Authorship and Review
Wikipedia content provided here is not reviewed directly by MedLibrary.org. Wikipedia content is authored by an open community of volunteers and is not produced by or in any way affiliated with MedLibrary.org.
Wikipedia Usage Guidelines
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article on "Quarry".
The URL for this specific entry is:
All Wikipedia text is available under the terms of the GNU Free Documentation License. (See Copyrights for details). Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc.