Coal mine
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Coal mine
A coal mine (/koʊl maɪn/) is a type of mine that is specifically designed for the extraction of coal, a combustible black or brownish-black sedimentary rock, formed as rock strata called coal seams.
Etymology
The term "coal mine" is derived from the Old English words "col" meaning coal and "myn" meaning mine.
Related terms
- Coal mining: The process of extracting coal from the ground.
- Coal seam: A black or dark brown layer of rock, usually a meter or more thick, that contains coal.
- Coal dust: Fine particles of coal that are the result of coal mining.
- Coal miner: A person who works in a coal mine.
- Coalfield: An area of certain uniform characteristics where coal is mined.
- Underground mining: The process of extracting minerals or ores that are buried too far underground to be mined using surface mining methods.
See also
External links
- Medical encyclopedia article on Coal mine
- Wikipedia's article - Coal mine
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