Quantitative Assessment of the Resource Potential of Porphyry Copper Systems in China

Using the method and principle of the “three-part” mode of mineral resource assessment, we have studied the geological setting, and temporal spatial distribution rule and models of the porphyry copper deposits in China. In our assessment we have also included 46 prospective areas. Based on the metal reserves database in 1999 and data from currently producing deposits, we have constructed a database of 984 deposits. We have studied grade-tonnage models according to the different types of mineralization, constructed a digital ore finding model, and developed quantitative assessment procedures for mineral resources. The probable resources for each prospective area have been calculated. This provides a reference database for evaluating the resource potential of porphyry copper systems in China.