Gravel pit

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Gravel pit in Tullingeasen, which forms part of Uppsalaasen. Tullingeasen 2012.jpg
Gravel pit in Tullingeåsen, which forms part of Uppsalaåsen.

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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Mining is the extraction of valuable minerals or other geological materials from the Earth, usually from an ore body, lode, vein, seam, reef or placer deposit. These deposits form a mineralized package that is of economic interest to the miner.

Gravel mix of crumbled stone (grain size range = 2-63 mm according to ISO 14688)

Gravel is a loose aggregation of rock fragments. Gravel is classified by particle size range and includes size classes from granule- to boulder-sized fragments. In the Udden-Wentworth scale gravel is categorized into granular gravel and pebble gravel. ISO 14688 grades gravels as fine, medium, and coarse with ranges 2 mm to 6.3 mm to 20 mm to 63 mm. One cubic metre of gravel typically weighs about 1,800 kg.

Quarry A place from which a geological material has been excavated from the ground

A quarry is a type of open-pit mine in which dimension stone, rock, construction aggregate, riprap, sand, gravel, or slate is excavated from the ground.

Open-pit mining surface mining technique of extracting rock or minerals from the earth

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Mining engineering Engineering discipline that involves the practice, the theory, the science, the technology, and applicatIon of extracting and processing minerals from a naturally occurring environment

A mining engineer is somebody who is academically accomplished in the engineering discipline of extraction of minerals from underneath the ground, above the ground or on it. Mining engineering is associated with many other disciplines, such as mineral processing, exploration, excavation, geology, and metallurgy, geotechnical engineering and surveying. A mining engineer may manage any phase of mining operations – from exploration and discovery of the mineral resource, through feasibility study, mine design, development of plans, production and operations to mine closure.

Thornton Quarry

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Construction aggregate broad category of coarse particulate material used in construction

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Penlee Quarry railway

The Penlee Quarry railway was a 2 ft narrow gauge industrial railway serving the Penlee Quarry at Newlyn in Cornwall, England, UK. It was Cornwall's most westerly railway and one of the last operating narrow gauge industrial railways in the UK.

Gurney Slade quarry

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Quarry Lakes Regional Recreation Area

Quarry Lakes Regional Recreation Area is a regional park located in Fremont, California that is part of the East Bay Regional Parks system. Before being converted into a park, the site was used as a gravel quarry. When water purchased by the public for groundwater recharge of the Niles Cone flooded the gravel pits, the gravel harvesters began to daily pump the seeping water down Alameda Creek into San Francisco Bay. The Alameda County Water District acquired the quarry after the pumping was declared to be an illegal waste in 1976.

Crushed stone form of construction aggregate

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Outline of mining Overview of and topical guide to mining

The following outline is provided as an overview of and topical guide to mining:

Mining in the United Kingdom

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Stone paper, also known as limestone paper, rock paper, generically referred to as bio-plastic paper, mineral paper or rich mineral paper, is a type of strong and durable paper-like material manufactured from calcium carbonate bonded with small amount of resin high-density polyethylene (HDPE). It is used for stationery, leaflets, posters, books, magazines, bags, packaging, wallpaper, adhesives, tags, in-mould labels, plates, trays, containers, and maps among other uses.

Summer Leys Local nature reserve in Northamptonshire, England

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Aggregate (geology) mass of crystals or rock particles or soil particles

In the Earth sciences, aggregate has three possible meanings.

Oldcastle Materials

Oldcastle Materials Inc. is a leading supplier of asphalt, concrete, and other building materials, and also offers construction and paving services. The Atlanta-based company is a subsidiary of CRH plc, a publicly traded international group of diversified building materials businesses, and has approximately 18,000 employees at 1,200 locations, as of March 2018.

In 2017, the aggregate industry in the United States mined and sold 2.12 billion metric tons of crushed rock, sand and gravel valued at US$20.9 billion. There are thousands of aggregate-producing companies in the US, operating in each of the 50 states, and employing 105,000 people. Most aggregate is used by the construction industry, where it is an essential raw material and the main ingredient in concrete and asphalt concrete.

The National Stone, Sand & Gravel Association is a professional trade association, with a membership of stone, sand, and gravel producers, as well as related equipment manufacturers and service providers. The companies they represent within the aggregates industry are responsible for the raw materials found in residential and commercial buildings, roads, bridges, and public works projects throughout the United States. The NSSGA was created in February 2001 when 2 large aggregate associations, the National Aggregates Association and the National Stone Association, merged.

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