Correlation between rock types and Copper mineralization using fractal modeling in Kushk-e-Bahram deposit, Central Iran

In this paper, correlation between rock types and Cu mineralization obtained by Concentration-Number (C-N) fractal model calculated in Kushk-e-Bahram Cu deposit, Central Iran. This deposit is located in the Urumieh-Dokhtar magmatic arc (UDMA). The main subject in this study was determination of relation between the Cu grade populations and rock types based on subsurface data using logratio matrix. The C–N log–log plot reveals six geochemical populations which defined by Cu 10 ppm and Cu≥3390 ppm as non- mineralized and high mineralized zones, respectively. According to geological logging and field geology, there are six rock types including tuff and andesitic rocks. Based on the results obtained by logratio matrix, andesite tuff has 87.5% of overall accuracy with Cu enriched zone (Cu≥3390 ppm). Furthermore, pyroclastic tuffs contain Cu grades between 1750 ppm and 3390 ppm as highly mineralized zone. The final results show that the andesite tuff and pyroclastic tuff rocks are main host rocks of this deposit. It would be an important key for copper exploration in the study area and consequently be considered part of the UDMA.