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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.
The joint explosion of these mines ranks among the largest artificial non-nuclear explosions. Eight big and eleven tiny charges were buried deep in the chalky earth to make up the 19 mines. They were "overcharged" to throw up high lips for screening and to give advantage to the attackers if they were able to capture the resulting craters. [1]
Fire cycles also tend to be long near the tree line in the subarctic spruce-lichen woodlands. The longest cycles, possibly 300 years, probably occur in the western boreal in floodplain white spruce. [45] Amiro et al. (2001) calculated the mean fire cycle for the period 1980 to 1999 in the Canadian boreal forest (including taiga) at 126 years. [44]
The TauTona Mine, formerly Western Deep Levels No.3 Shaft, [1] is a gold mine located in the West Wits gold field west of Johannesburg. The mine is near the town of Carletonville in South Africa . At approximately 3.9 kilometers (2.4 mi) deep, it is home to the world's second deepest mining operation, rivalled only by the Mponeng Gold Mine ...
The mine is owned by Luossavaara-Kiirunavaara AB (LKAB), a large Swedish mining company. In 2018 the mine produced 26.9 million tonnes of iron ore. [ 2 ] The Kiruna mine has an ore body which is 4 km (2.5 mi) long, 80 metres (260 ft) to 120 metres (390 ft) thick and reaching a depth of up to 2 km (1.2 mi).
NASA's exploration robots have rumbled around Mars, swooped around Saturn, and flown well beyond the planets, into interstellar space. But the space agency's engineers often direct their machines ...
In Kosovo, a state-owned energy company plans to destroy a village to make way for expanded coal mining as the government and the World Bank plan for a proposed coal-burning power plant. The government has already forced roughly 1,000 residents from their homes. Many former residents claim officials violated World Bank policy requiring borrowers to restore their living conditions at equal or ...
Molloy Deep, also in Arctic Ocean (at 6,357.5178 km or 3,950 mi) from Earth's centre contends closely with Litke Deep, the difference from Earth's centre being just 389 m (1,276 ft). The point on the ocean surface farthest below sea level is located in the Indian Ocean , about 1,200 km (750 mi) southwest of India, the Indian Ocean Geoid Low ...