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4. Metallogeny: the different types of gold deposits
The metallogeny of gold is complex, imposing specific mining methods depending on the morphology of the deposits. Since the characteristics of each deposit are not exactly the same from one to the next, an attempt to classify them can be made pragmatically, based on their morphology, grades and mining methods (table 3 ).
The proposed classification does not take into account structural observations essential to the mineralurgist and metallurgist, such as gold's accompanying elements, mineralization, the mineralogical nature of gold and its carrier minerals, etc. It also ignores the fact that gold is a co-product of ores mined for their base metal content rather than their gold content. We also fail to take into account the fact that 20% of resources consist of gold, as a co-product of ores mined for their...
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Metallogeny: the different types of gold deposits
Deposits that are difficult to process
Economic data
1. Mining production
Table 1 gives production figures for the main producing countries, and table 2 summarizes production by country group. World production is clearly on the rise, despite...
Bibliography
References
International metallurgical and mining companies
Non-exhaustive list
AngloGold http://www.anglogold.com
Ashanti http://www.ashantigold.com
Avgold Ltd.
Gold companies in France
Non-exhaustive list
Engelhard – CLAL
Valme Industrie
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