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contour mining definition :

Definition of contour mining - Mindat.org

Definition of contour mining. Surface mining that progresses in a narrow zone following the outcrop of a coal seam in mountainous terrain, and the overburden, removed to gain access to the mineral commodity, is immediately placed in the previously mined area, such that reclamation is carried out contemporaneously with extraction. Ref: SME, 1.

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Contour mining definition - Law Insider

Define Contour mining. means a method of surface coal mining that involves making an initial mining cut along the contour of a hillside to the maximum highwall height and then making subsequent cuts along the same contour, placing spoil in the preceding cut where the coal has been removed.

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Contour strip mining coal mining Britannica

2 天前  In coal mining: Mining methods be broadly classified into (1) contour strip mining, (2) area strip mining, (3) open-pit mining, and (4) auger mining. Read More

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Coal Surface Mining, Contour Mining - Mine

2001-12-9  The Contour or Bench method of surface or strip mining is usually associated with coal, where a seam or multiple seams are located at a certain elevation or elevations through a mountain or hill. Contour mining allows for the extraction of coal from

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CONTOUR meaning in the Cambridge English

contour definition: 1. the shape of a mass of land or other object, especially its surface or the shape formed by its. Learn more.

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Contour Mining and Construction General

We are poised to forge a new standard in the mining and site development industries. Contour is headquartered in Columbia, South Carolina, and we are able to mobilize on any project in the Southeast. We are a licensed general contractor with unlimited

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Contour strip mining legal definition of Contour strip ...

Define Contour strip mining. means that strip-mining method commonly carried out in areas of rough and hilly topography in which the coal or mineral seam outcrops along the side of the slope and entrance are made to the seam by excavating a bench or table cut at and along the site of the seam outcropping, with the excavated overburden commonly being cast down the slope below the mineral seam ...

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Contour definition and meaning Collins English

2 天前  A contour on a map is a line joining points of equal height and indicating hills, valleys, and the steepness of slopes . There were three moderate climbs to just below the 450 feet contour. ...a contour map showing two hills and this large mountain in the middle. 3. verb.

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CONTOUR Definition of CONTOUR by Oxford

noun. 1 An outline, especially one representing or bounding the shape or form of something. ‘There is an almost abstract flavour to his creations - speedy outlines and contours take shape on the canvas as he moves about in a blur.’. ‘Angles and curves, shapes and contours fascinate young minds.’.

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contour farming Description, Uses, Benefits

2 天前  Contour farming, the practice of tilling sloped land along lines of consistent elevation in order to conserve rainwater and to reduce soil losses from surface erosion. These objectives are achieved by means of furrows, crop rows, and wheel tracks

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Contour Definition of Contour at Dictionary

Contour definition, the outline of a figure or body; the edge or line that defines or bounds a shape or object. See more.

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Contour Strip Mining by Carissa Goddeau - Prezi

Contour Strip Mining Carissa Goddeau Avery DeBoer It is hazardous to human health Linked to birth defects, heart disease, and cancer in communities that are affected by fallouts Fallout contain millions of pounds of mining explosives, silica dust, and pulverized heavy metals It

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What is Strip Mining? - Definition from Safeopedia

The second approach, called contour mining, is used on hilly terrain and involves stripping land in a manner that mirrors its topography. Safeopedia explains Strip Mining Strip-mining processes are subject to a variety of occupational and environmental health and safety regulations in any advanced country in which the activity is practiced.

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Contour Definition of Contour by Merriam-Webster

Contour definition is - an outline especially of a curving or irregular figure : shape; also : the line representing this outline. How to use contour in a sentence. Synonym Discussion of contour.

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Approximate Original Contour - Office of Surface Mining ...

2011-1-21  Ohio’s definition of “approximate original contour” is nearly the same as the Federal definition in SMCRA Section 701(2). Ohio Revised Code 1513.01(A) defines the term as follows: ... application map and/or enough cross-sections to reflect the overall pre-mining contour. Cross-sections show the pre-mining and proposed post-mining ...

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STRIP MINING definition in the Cambridge English

strip mining meaning: 1. a method of obtaining substances such as coal from the ground that involves removing the top. Learn more.

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Glossary of Mining Terms - Coal Education

2018-1-4  Contour - An imaginary line that connects all points on a surface having the same elevation. Conventional mining – The first fully-mechanized underground mining method involving the insertion of explosives in a coal seam, the blasting of the seam, and the removal of the coal onto a conveyor or shuttle car by a loading machine.

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Definitions of contour - OneLook Dictionary Search

Quick definitions from WordNet (contour) noun: a feature (or the order or arrangement of features) of anything having a complex structure ("The contours of the melody") noun: a line drawn on a map connecting points of equal height noun: any spatial attributes (especially as

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What is a contour? I just need a definition please!

The process of restoring an area of land to a more natural, productive state of land is called A.contour farming. B. mining. C. Land reclamation. D.desertification. I think the answer is C. math. Electron Tube Electronics made 50,000 TVs last month. If 3.5% of them were high definition, how many high definition TVs were produced?

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Strip mining Britannica

1 天前  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. The cycle of operations for both techniques consists of vegetation clearing, soil removal, drilling and blasting of ...

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Employment - Contour Mining and Construction, LLC

JOIN OUR TEAM! We are continuously searching for motivated, honest individuals, in search of a rewarding career in the mining / construction industry. We offer a fast paced career with upward mobility and excellent compensation. We currently have the following positions available: Mining Foreman Construction Foreman (Concrete and site prep) Haul truck operator (Articulated or

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What Is Surface Mining? Convergence Training

These mining categories are: strip mining, open-pit mining, mountaintop removal, dredging and high wall mining. All methods of surface mining will remove the waste material, or overburden, above the desired resource. Surface mining is often preferred to sub-surface (underground mining) by mining

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Mining 101 - West Virginia Coal Association

2 天前  Contour mining results in excavation areas or “contour cuts” that wrap around mountaintops or ridgelines parallel to the contour of a given mountain or ridge line. Contour cuts may be conducted on multiple seams on a ridge or mountain side, stepping upward in elevation much like a layer cake pattern.

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contour strip mining ore mining - hotel-obrigheim.de

Contour strip mining coal mining Britannica. 2020923enspenspOther articles where Contour strip mining is discussed: auger mining: Augering is usually associated with contour stripmining, recovering coal for a limited depth beyond the point where stripping becomes uneconomical because the seam of coal lies so far beneath the surface.

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What is Contour Plowing? - Definition from Safeopedia

Definition - What does Contour Plowing mean? Contour plowing is the act of farming on a hill or a contoured area. The plow follows the contours of the land horizontally helping to reduce runoff of water.

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Glossary of Mining Terms - Coal Education

2018-1-4  Contour - An imaginary line that connects all points on a surface having the same elevation. Conventional mining – The first fully-mechanized underground mining method involving the insertion of explosives in a coal seam, the blasting of the seam, and the removal of the coal onto a conveyor or shuttle car by a loading machine.

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What is a contour? I just need a definition please!

The process of restoring an area of land to a more natural, productive state of land is called A.contour farming. B. mining. C. Land reclamation. D.desertification. I think the answer is C. math. Electron Tube Electronics made 50,000 TVs last month. If 3.5% of them were high definition, how many high definition TVs were produced?

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Definitions of contour - OneLook Dictionary Search

Quick definitions from WordNet (contour) noun: a feature (or the order or arrangement of features) of anything having a complex structure ("The contours of the melody") noun: a line drawn on a map connecting points of equal height noun: any spatial attributes (especially as

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(PDF) Highwall Mining: Design Methodology, Safety

ter of fact, the hig hwall mining method combined with contour mining would be most pr e-ferred for mining many of the coal seams exposed on the mo untain sides in the Appalachia n .

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What is Strip Mining? (with pictures) - wiseGEEK

2021-1-24  Mary McMahon Date: January 24, 2021 Strip mining is done layers where the mining operations go slighter deeper with each pass.. Strip mining is a type of surface mining which involves the removal of a thin layer of material known as an “overburden” to access buried deposits of useful minerals.This type of mining is only effective in areas where mineral deposits are very close to the ...

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