Quantitative Mineral Resource Assessment of Copper, Molybdenum, Gold, and Silver in Undiscovered Porphyry Copper Deposits in the Andes Mountains of South America.: C.G. Cunningham, E.O. Zappettini, Waldo Vivallo S., C.M. Celada, J. Quispe, D.A. Singer, J.A. Briskey, D.M. Sutphin, M. Gajardo M., A. Diaz, C. Portigliati, V.I. Berger, R. Carrasco, and K.J. Schulz. U.S. Geological Survey Open-File Report 2008-1253. Pp. 282. 2008. Available on CD-ROM and online at <http://pubs.usgs.gov/of/2008/1253/>.

The U.S. Geological Survey (USGS), in collaboration with international partners, has embarked on a campaign to estimate the amount of undiscovered non-fuel mineral resources on planet Earth. The justification for this exercise is that policy makers in the United States and other interest groups need to know how much material remains to be mined, and the likely locations of these “undiscovered deposits.” A product of this on-going exercise is USGS open-file report 2008-1253, Quantitative Mineral Resource Assessment of Copper, Molybdenum, Gold, and Silver in Undiscovered Porphyry Copper Deposits in the Andes Mountains of South America. This report has been...