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A gravel pit is an open-pit mine for the extraction of gravel. Gravel pits often lie in river valleys where the water table is high, so they may naturally fill with water to form ponds or lakes. Old, abandoned gravel pits are normally used either as nature reserves, or as amenity areas for water sports, landfills and walking. In addition, many gravel pits in the United Kingdom have been stocked with freshwater fish such as the common carp to create coarse fishing locations. Gravel and sand are mined for concrete, construction aggregate and other industrial mineral uses.
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See also
- Borrow pit
- Clay pit
- Quarry
- Rock (geology)
- Granite
- Stone industry
- Mining engineering
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External links
- Gravel Watch: Responsible Management of Aggregates
References
- UEPG - The European Aggregates Association
- Samscreen International
- The National Stone, Sand & Gravel Association
- The American Society for Testing Materials
- Gravel Watch Ontario
- Oregon Concrete & Aggregate Producers Association
- Portland Cement Association
- Pavement Interactive article on Aggregates
- 2006 USGS Minerals Yearbook: Stone, Crushed
Source of the article : Wikipedia
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