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Open-pit, open-cast or open cut mining is a surface mining technique of extracting rock or minerals from the earth by their removal from an open pit or borrow.

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Coal Basics — Coal Association of Canada. The majority of Canada's coal is produced by surface mining – either strip mining or open pit. Strip mining is only a ...

Open-pit mining - Wikipedia, the free encyclopedia. Open-pit mining, open-cut mining or opencast mining is a surface mining technique of extracting rock or minerals ...

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Over 7269 million tonnes (Mt) of hard coal are currently produced worldwide and 787 Mt of lignite. Coal is mined by two methods: surface or 'opencast' mining, and ...

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