Mining is the extraction of valuable minerals or other geological materials from the earth, from an orebody, lode, vein, (coal) seam or reef, which forms the mineralized horizon and package of economic interest to the miner.
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Some articles on mining:
... The result is that metal mining activities are expanding, and more and more of the world’s metal stocks are above ground in use, rather than below ground as ... can be used over and over again, minimizing the negative environmental impacts of mining and saving energy at the same time ...
... closed in 1959, badly affected by silting and the gradual downturn of the Scottish coal mining industry ... Bo'ness was a site for coal mining from medieval times ... Clay mining was carried out on a smaller scale ...
... Company, rubber, defunct in 1906 Aurubis, copper Carmeuse, lime and limestone mining Forrest Group, mining Metallo-Chimique, mining Nyrstar, mining Sibelco, minerals ...
... Mountaintop coal mining is a surface mining practice involving removal of mountaintops to expose coal seams, and disposing of associated mining overburden in adjacent "val ... Mountaintop removal combines area and contour strip mining methods ... creating head-of-hollow-fills, or filling in valleys with mining debris, and for covering streams and disrupting ecosystems ...
... Several types of sub-surface mining, and specifically methods which intentionally cause the extracted void to collapse (such as pillar extraction, longwall mining and any metalliferous mining method which ... Mining induced subsidence is relatively predictable in its magnitude, manifestation and extent, except where a sudden pillar or near-surface underground tunnel ... Mining-induced subsidence is nearly always very localized to the surface above the mined area, plus a margin around the outside ...
More definitions of "mining":
- (noun): Laying explosive mines in concealed places to destroy enemy personnel and equipment.
Famous quotes containing the word mining:
“For every nineteenth-century middle-class family that protected its wife and child within the family circle, there was an Irish or a German girl scrubbing floors in that home, a Welsh boy mining coal to keep the home-baked goodies warm, a black girl doing the family laundry, a black mother and child picking cotton to be made into clothes for the family, and a Jewish or an Italian daughter in a sweatshop making ladies dresses or artificial flowers for the family to purchase.”
—Stephanie Coontz (20th century)
“Any relation to the land, the habit of tilling it, or mining it, or even hunting on it, generates the feeling of patriotism. He who keeps shop on it, or he who merely uses it as a support to his desk and ledger, or to his manufactory, values it less.”
—Ralph Waldo Emerson (18031882)
“In strict science, all persons underlie the same condition of an infinite remoteness. Shall we fear to cool our love by mining for the metaphysical foundation of this elysian temple? Shall I not be as real as the things I see? If I am, I shall not fear to know them for what they are.”
—Ralph Waldo Emerson (18031882)