Strip mining definition

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Surface miningincluding strip miningopen-pit mining and mountaintop removal miningis a broad category of mining in which soil and rock overlying the mineral deposit the overburden are removed, in contrast to underground miningin which the overlying rock is left in place, and the mineral is removed through shafts or tunnels. Surface mining began in the mid-sixteenth century [1] [ dubious — discuss ] and is practiced throughout the world, although the majority of surface coal mining occurs in North America. In most forms of surface mining, heavy equipment, such as earthmoversfirst remove the overburden.

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While King sought "to create a situation so crisis-packed that it will inevitably open the door to negotiation," besieged strip-mined residents in Knott County in eastern Kentucky organized their own sit-ins and protests to keep unchecked strip-miners from destroying their historic homelands and hillsides and watersheds. The material isn't overtly absurdist, offensive or angry, and you've heard many of the subjects before: commercial air travel, film and television, sports, binge drinking -- tropes long ago strip-mined by lesser comics. Every reader can simply go to this website and enter his or her zip code and see their connection to coal-fired electricity supplied by coal strip-mined from mountaintop removal or other strip-mining operations.

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Strip-mining, also known as loop sectioning, is a loop transformation technique for enabling SIMD-encodings of loops, as well as a means of improving memory performance. By fragmenting a large loop into smaller segments or strips, this technique transforms the loop structure in two ways:. It increases the temporal and spatial locality in the data cache if the data are reusable in different passes of an algorithm. It reduces the number of iterations of the loop by a factor of the length of each vector, or number of operations being performed per SIMD operation.

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Mountaintop removal mining devastates the landscape, turning areas that should be lush with forests and wildlife into barren moonscapes. Huge machines, called "draglines," push rock and dirt into nearby streams and valleys, forever burying waterways. The massive dragline in the photo, which can weigh up to 12 million pounds and be as big as an entire city block, is dwarfed by the scale of this devastation.

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Ever wonder to yourself: what is surface mining? And if so, this is the article for you. If you read through this and are still wondering about the surface mining definition, leave a note in the comments below.

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In the world of Minecraftmining is essential to a player 's progress. However, mining can be dangerous and time-consuming if not done well. Below are some tips provided by the community for performing this underground work.

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Strip miningremoval of soil and rock overburden above a layer or seam particularly coalfollowed 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 overburden if neededstripping, removal of the coal or other mineral commodity, and reclamation. Area mining is appropriate for the extraction of near-surface, relatively flat-lying, and thin deposits of coal, phosphate, and similar minerals.

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Strip mining is a kind of surface mining. The ore is very near to the surface of the land but has one or more layers of rock and filth on top of it. To mine the ore, these layers have to be removed.

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Related to strip mining: Underground miningOpen pit mining. Switch to new thesaurus. Mentioned in? References in periodicals archive?


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