Underground Mining at Rio Tinto

CIM Bulletin1940
THE large pyrites ore-bodies, the underground mining of which is to be described, are situated at Rio Tinto in the Province of Huelva in Southern Spain. The situation of the different ore-bodies with relation to one another is shown in Figure 1. It will be seen on the plan that the strike of the orebodies is approximately east and west
Keywords: mining, Ore, ore, porphyry, pyrites, slate, stopes, Ores, pillar, Pillars, Settlement, stope, stopes
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