Preliminary Model of Porphyry Copper Deposits Open-File Report 2008–1321 U.S. Department of the Interior U.S. Geological Survey Preliminary Model of Porphyry Copper Deposits…

Slide 1 Slide 2 CVS4, Fig. 8.1 Copper Nickel Cobalt Lead Zinc Chromium Tin Mercury Gold Silver Platinum Rare-earth elements Geochemically scarce Slide 3 Slide 4 Pure calcite,…

Slide 1 MINERAL RESOURCE AVAILABILITY and the FUTURE OF CIVILIZATION John L. Berry John Berry Associates, Austin,TX ©John Berry Assoc. Slide 1 of 54 Slide 2 MINERAL RESOURCE…

Economic Minerals â minerals that can be extracted, processed, and marketed at a profit. Factors: -interest in the mineral, -size of the deposit, -mineral concentration,…

Copper, the main mineral at Pebble, plays a vital role in the modern world. The use of this essential mineral can be traced as far back as 9,000 B.C., with an aggressive…

Economic Geology Vol. 71, 1976, pp. 1533-1548 Sulfur Isotopes in the Porphyry Copper Deposit at E1 Salvador, Chile C•:l•US W. FmL•) •N•) LEW•S B. GUST•FSON…