Mining

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What is mining?

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The process of extracting valuable minerals or other geological materials from the earth.

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What are ore minerals?

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Minerals from which metals can be extracted profitably.

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What is surface mining?

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A mining method used when ore deposits are located close to the Earth's surface.

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What is the first step in surface coal mining?

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To remove and set aside the soil that covers the area to be mined.

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What are aggregates in mining?

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Materials such as sand, gravel, and crushed rock used in construction.

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What is a serious hazard of coal mining?

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An underground mine fire.

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What is the cooling of magma?

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A process that can lead to the formation of ore minerals as magma cools and solidifies.

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What are hydrothermal solutions?

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Hot, mineral-rich fluids that can circulate through rocks and lead to ore formation.

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What is reclamation in mining?

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The process of restoring land that has been mined to a natural or economically usable state.

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What are placer deposits?

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Mineral deposits formed by the action of water, often containing valuable metals like gold.