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strip mining encyclopedia

Strip mining Encyclopedia Britannica

Strip mining, removal of soil and rock (overburden) above a layer or seam (particularly coal), followed by the removal of the exposed mineral. The common strip-mining techniques are classified as area mining or contour mining on the basis of the deposit geometry and type.

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Strip Mining Encyclopedia

14/05/2018 Strip mining is used for mining phosphate fertilizer in Florida, North Carolina, and Idaho, and for obtaining gypsum (mainly for wallboard) in western states. However, the most common association of strip mining is with coal.

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Strip mining Academic Kids

Strip mining is the practice of mining a seam of mineral ore by first removing all of the soil and rock that lies on top of it (the overburden). It is similar to open-pit mining in many regards. Strip mining is also used to extract the oil-impregnated sand in the Athabasca Tar Sands.

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Strip Mining an overview ScienceDirect Topics

Andrew P. Schissler, in Encyclopedia of Energy, 2004 2.3 Strip Mining Strip mining is employed in coal reserves where the overburden is removed in rectangular blocks in plan view called pits or strips. The pits are parallel and adjacent to each other.

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Cumberland Mountain Area Scarred by Strip Mining

The mineral iron pyrite (FeS 2) is usually part of the shale layer that is pushed aside by strip mining as tailings or waste; when exposed to weathering, this mineral yields sulfur, producing sulfuric acid. This acid turns streams a reddish color and can kill whatever is living in them.

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Strip mining Article about strip mining by The Free

strip mining: see coal mining coal mining, physical extraction of coal resources to yield coal; also, the business of exploring for, developing, mining, and transporting coal in any form. Coal has been historically important industrially as a source of energy, but air pollution and climate change, which the

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Strip Mining an overview ScienceDirect Topics

Andrew P. Schissler, in Encyclopedia of Energy, 2004. 2.3 Strip Mining. Strip mining is employed in coal reserves where the overburden is removed in rectangular blocks in plan view called pits or strips. The pits are parallel and adjacent to each other. Strip mining is fundamentally different from contour or area mining on how the overburden is displaced, called spoil handling. In contour or

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Area strip mining Encyclopedia Britannica

Other articles where Area strip mining is discussed: coal mining: Mining methods: (1) contour strip mining, (2) area strip mining, (3) open-pit mining, and (4) auger mining.

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Strip-mining Article about strip-mining by The Free

Kentucky Diversified Fuels LLC is a consolidated energy company with operations in eastern Kentucky, consisting of a steam coal strip-mining company, Middle Fork Development Services LLC and subsidiaries; a development stage coal-to-liquid company, MXP LLC and a coal feedstock impoundment, situated on 24.68 acres, with around 2.4 million tons of in-place fine refuse reserves.

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Surface mining Wikipedia

Surface mining, including strip mining, open-pit mining and mountaintop removal mining, is a broad category of mining in which soil and rock overlying the mineral deposit (the overburden) are removed, in contrast to underground mining, in which the overlying rock is left in place, and the mineral is removed through shafts or tunnels. Surface mining began in the mid-16th century [dubious

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Mining Surface mining Encyclopedia Britannica

Mining Mining Surface mining: It has been estimated that more than two-thirds of the world’s yearly mineral production is extracted by surface mining. There are several types of surface mining, but the three most common are open-pit mining, strip mining, and quarrying. These differ from one another in the mine geometries created, the techniques used, and the minerals produced.

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Mine Encyclopedia

Mining, Mining Mining is the process by which commercially valuable mineral resources are extracted (removed) from Earth's surface. These resources include o Strip Mining, This technique is used for near-surface, relatively flat sedimentary mineral deposits. How deeply the mining can occur is essentially determined by t

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Coal mining Choosing a mining method Britannica

Surface techniques can be broadly classified into (1) contour strip mining, (2) area strip mining, (3) open-pit mining, and (4) auger mining. Contour strip mining. Contour mining is commonly practiced where a coal seam outcrops in rolling or hilly terrain. Basically, the method consists of removing the overburden above the coal seam and then, starting at the outcrop and proceeding along the

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Mining The Canadian Encyclopedia

07/04/2009 These methods, also known as strip mining or open-pit mining, remove surface material, or overburden, to reveal extensive, low-grade deposits. The removal of vegetation and soils and the creation of massive pits by opencast mining make it controversial as a source of landscape degradation and water pollution. Mineral Processing and Associated Waste

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Coal mining encyclopedia article Citizendium

13/03/2021 Strip mining is relatively low cost, requiring perhaps only a backhoe and a dump truck. Profits from strip mining are sometimes used to purchase equipment needed for interior mines. Unless subject to enforced regulation by government, strip miners tend not to remediate the stripped land afterwards, resulting in long term soil erosion and landscape defacement. Remediation of a strip mine

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Overburden geology Encyclopedia Britannica

Other articles where Overburden is discussed: coal mining: Contour strip mining: method consists of removing the overburden above the coal seam and then, starting at the outcrop and proceeding along the hillside, creating a bench around the hill. In the past, the blasted overburden spoil was simply shoved down the hill; currently, soil is either carried down the mountain to fill

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Area strip mining Encyclopedia Britannica

Other articles where Area strip mining is discussed: coal mining: Mining methods: (1) contour strip mining, (2) area strip mining, (3) open-pit mining, and (4) auger mining.

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Mining Surface mining Encyclopedia Britannica

Mining Mining Surface mining: It has been estimated that more than two-thirds of the world’s yearly mineral production is extracted by surface mining. There are several types of surface mining, but the three most common are open-pit mining, strip mining, and quarrying. These differ from one another in the mine geometries created, the techniques used, and the minerals produced.

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Strip mine Article about strip mine by The Free Dictionary

Strip mining proposed at border of park Several years later one of the sons arranged to have an outside company strip mine the remaining coal from the land, and for another company to purchase the land, fill in the stripped area with refuse and reclaim the land.

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Strip-mines Article about strip-mines by The Free Dictionary

Find out information about strip-mines. An opencut mine in which the overburden is removed from a coal bed before the coal is taken out. McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Explanation of strip-mines

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Surface Mining The Encyclopedia of Oklahoma History and

Significant strip-mining activity in the eastern Oklahoma coal field began about 1915. Large-scale surface mining commenced in the 1920s with the development of mechanized earth-moving equipment. By 1940 half of Oklahoma's annual coal production was recovered by surface mining, and at the end of the twentieth century 95 percent of the state's coal production came from surface mines. At the

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Coal Exploration and Mining UNESCO ENCYCLOPEDIA OF

two basic methods of extracting coal, i.e. surface mining and underground mining, are introduced. Firstly, two main methods—strip mining and open-pit mining—of surface mining are discussed. In underground mining, room and pillar, shortwall, and longwall mining methods are introduced. Finally, a brief prospect for coal exploration and mining

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Mining The Canadian Encyclopedia

07/04/2009 These methods, also known as strip mining or open-pit mining, remove surface material, or overburden, to reveal extensive, low-grade deposits. The removal of vegetation and soils and the creation of massive pits by opencast mining make it controversial as a source of landscape degradation and water pollution. Mineral Processing and Associated Waste

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strip mining history The Pop History Dig

21/03/2014 Strip mining was moving ever closer to the town, and in 2006 Cumberland Resources, a mining company then operating a strip mine at the edge of Stonega, had set about buying out local residents. As for the remains of the town, Cumberland Resources sought to preserve the neighborhood’s history with photographs and a video it made before the buildings were demolished the video

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Mining Encyclopedia Britannica

Mining, process of extracting useful minerals from the surface of the Earth, including the seas. A mineral, with a few exceptions, is an inorganic substance occurring in nature that has a definite chemical composition and distinctive physical properties or molecular structure. (One organic

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Coal Mining The Canadian Encyclopedia

Surface Mining . Safety and working conditions have improved dramatically in the coal industry, as most operations in Canada have abandoned the more dangerous underground mining in favour of open pit or strip mining methods. Instead of digging shafts and tunnels, miners use massive dragline and track shovels to remove the “overburden” (rock

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