Porphyry copper deposits of the world; database and grade and tonnage models, 2008

Online link http://pubs.usgs.gov/of/2008/1155/
Description Revised and updated information about mineral deposit models for porphyry copper deposits to facilitate assessment of undiscovered resources
Originators Singer, Donald A.; Berger, Vladimir I.; and Moring, Barry C.
Publication U.S. Geological Survey Open-File Report 2008-1155

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