Global Mineral Resource Assessment

Online link http://pubs.usgs.gov/sir/2010/5090/
Description Regional locations and estimates of the probable amounts of undiscovered resources of copper, platinum-group elements, and potash in selected types of mineral deposits to depths of 1 to 3 kilometers below the surface of the earth worldwide.
Originators Zientek, Michael L. (Editor); Hammarstrom, Jane M. (Editor); Johnson, Kathleen M. (Editor); and Pierce, Frances W. (Editor)
Publication U.S. Geological Survey Scientific Investigations Report 2010-5090