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Mponeng MineThis photograph comes from the world’s deepest active mine, Mponeng Gold mine in South A

Link #mponeng #geology #science #mining #engineering #igneous #metamorphic #placer #the earth story #south africa

Mponeng MineThis photograph comes from the world’s deepest active mine, Mponeng Gold mine in South A

Link #nature #industry #south africa #mponeng #mponeng gold mine #earth #geothermal gradient #temperature #komatiite #volcano #science #geology #the earth story