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3. Deposit mining techniques
3.1 Mineral extraction
There is a big difference between sulphide and oxide ore deposits:
Sulphide ores are generally mined underground and can be found at varying depths (e.g. 1,000 to 2,000 m);
oxidized ores, by virtue of their genesis, are always located on the surface; they can therefore be mined by open-pit methods.
The most commonly used extraction methods are as follows:...
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Deposit mining techniques
Nickel metallurgy
Economic data
1.Nickel production
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Mining production
Table 1 shows the worldwide distribution in 2004.
Producers
1.Main nickel metal producers
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