Porphyry copper deposits

Porphyry is a specific type of magmatic rock that forms chiefly within mountain belts. Some porphyry intrusions carry metals and porphyry deposits are the single most important deposit type for copper. Many porphyry deposits are also very important resources for particularly gold and molybdenum. This video by Dr Taija Torvela summarises how, and where, porphyry deposits form, and describes the principle of a process called alteration and how it affects the country rocks around a porphyry. Understanding the principles of porphyry deposit formation and alteration zoning is very important for exploration of porphyry deposits.
This video is part of the TH-cam channel ‪@ourmetallicearth‬
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