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Mponeng is an ultra-deep tabular gold mine in South Africa in the Witwatersrand Basin of the Gauteng Province. [1] Previously known as Western Deep Levels No1 Shaft, the mine began operations in 1986. [2] It is one of the most substantial gold mines in the world in terms of production and magnitude, reaching over 4 kilometres (2.5 mi) below the ...
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This list of deepest mines includes operational and non-operational mines that are at least 2,212 m (7,257 ft), which is the depth of Veryovkina Cave, the deepest known natural cave in the world. The depth measurements in this list represent the difference in elevation from the entrance of the mine to the deepest excavated point.
Most of these gold deposits are deep under the South African surface, but form outcrops (exposures at the surface) along the Witwatersrand ridge. The six gold fields thus established are, in order from the west, moving clockwise, to the northern shore of the Witwatersrand sea, Welkom, Klerksdorp, Carletonville, West Rand, East Rand and Evander. [2]
Desulforudis audaxviator is the only bacterium found in water samples obtained 2.8 kilometres (1.7 mi) underground in the Mponeng Gold Mine in South Africa. [2] [3] Approximately four micrometres in length, it survives on chemical food sources derived from the radioactive decay of minerals in the surrounding rock.
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A tour guide died at a Colorado gold mine after an elevator experienced a mechanical issue hundreds of feet below ground, trapping a dozen tourists for several hours, authorities said. The ...