ocr: MINES AND MINING STAGES OF MINING B . EFORE deposit mining be begins, a This must found. process, called exploration, can take many years. Once a suitable deposit is located, ore is mined either underground or on the surface, depending on the type and depth of the deposit. The next step is processing. This involves removing the ore from the surrounding rock and then extracting the valuable material, SATELLITE IMAGE such as copper, from the ore. This image, showing an ares of 120 S9 ki m (46. s9 miles), has been enhanced to highlight minerals.
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