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mining methods of iron oremining methods of kaolinite

mining methods of iron oremining methods of kaolinite

Jan 01, 2015· Mining method: sublevel caving Initial mining at Kiruna took the form ofopencast methods,and for 65 years, all the ore was mined bysurface methodsto a depth of 275 m. Thereafter, mining was concentrated at the underground mine that began production in 1957 (Chadwick, 2010).

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