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What are tailings? The waste from the mining industry. ... the properties of the tailings and waste rock (EC 2004). The processing of hard rock sulphidic bearing ores ...
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pillars had been stable on initial mining but became un ... in hard rock mines (Lunder and Pakalnis, 1997; Mar tin and Maybee, 2000; Esterhuizen, 2006) showed
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Underground hard rock mining refers to various underground mining techniques used to excavate hard minerals such as those containing ... Underground mining (hard rock)
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Hard rock mining refers to the excavation of hard minerals, mainly those containing metals ... Hard rock mining refers to the excavation of hard minerals, ...
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Key Issues > Hardrock Mining on Federal Lands Hardrock Mining on Federal Lands.