Mineral Exploration and Mining Flashcard

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What is Room-and-pillar mining?

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A mining method used to extract ore deposits that are 50 m or more beneath Earth's surface by creating a network of entries and leaving pillars of material for support.

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What are diamonds and precious metals?

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Mineral resources found on the ocean floor, often extracted through undersea mining.

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What are stream placers?

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Deposits that contain valuable minerals concentrated by mechanical action, typically found in riverbeds.

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What is Surface mining?

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A mining method used to extract minerals located close to Earth's surface by removing soil and rocks.

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What is the purpose of Room-and-pillar mining?

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To extract minerals like salt and coal while leaving pillars of material for structural support.

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What is Open-pit mining?

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A surface mining technique where a large excavation is made to extract minerals from the ground.

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What is Placer mining?

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A method of mining that involves extracting valuable minerals from alluvial deposits, often in riverbeds.

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What is Longwall mining?

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A method of underground mining where a long wall of coal is mined in a single slice.

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What is Dredging?

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A method used to remove material from the bottom of water bodies, often used for mining sand and gravel.

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What is Quarrying?

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The process of extracting stone or other materials from a quarry, typically for construction purposes.