2. Minerals

2.1 Deposits

There are some seventeen characteristic types of copper deposits, which fall into four main groups listed below in descending order of importance.

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2.1.1 Disseminated deposits associated with late-orogenic intrusions

Porphyry copper deposits account for 81.2% of the world's copper production (Growson, 1997). Mineralization occurs at the top of the granodiorite-monzonitic intrusion that forms the porphyry. It is in recent orogenies that the summit parts are best preserved. This...

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