Identified and undiscovered Copper resources by country.
The USGS assessed undiscovered copper in two deposit types that account for about 80% of the world’s copper supply. Porphyry copper deposits account for about 60% of the world’s copper. In porphyry copper deposits, copper ore minerals are disseminated in igneous intrusions. Sediment-hosted stratabound copper deposits, in which copper is concentrated in layers in sedimentary rocks, account for about 20% of the world’s identified copper
Data from Delta Analysis and International Copper Study Group.
Undiscovered resources not including deep sea nodules and land-based and submarine massive sulphides – contained copper.
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