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Which of these methods is least selective in ore extraction

This question belongs to Mining Engineering Mine Development And Mining Methods
Mine Development and Mining Methods
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Which of these methods is least selective in ore extraction?

Answer & Solution
Correct Answer: Option C
Block caving is a bulk mining method with little control over what caves.The correct answer is: Block cavingOre and waste collapse together, leading to high dilution.Suitable only for low-grade, massive ore bodies.
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