Delineation of enriched zones of Mo, Cu and Re by concentration-volume fractal model in Nowchun Mo-Cu porphyry deposit, SE Iran

The purpose of this study is to identify the enriched zones of Cu, Mo and Re in Nowchun Mo-Cu porphyry deposit (SE Iran) based on subsurface data and using of concentration–volume (C–V) fractal model. The C-V model illustrates four, five and three geochemical zones for Mo, Cu and Re distributions respectively. The main mineralization for Mo, Cu and Re commence from 251 ppm, 0.2% and 2238 ppb respectively, based on the C-V fractal modelling. However, elemental enriched zones contain Mo ≥ 501 ppm, Cu ≥ 0.4% and Re ≥ 4466 ppb. Based on a correlation between results obtained by the C-V and geological models, the supergene enrichment zone with Cu≥ 0.4% occurs in a small area of NE part at the Nowchun deposit within chalcocite accumulation. The enriched zones for Mo and Re derived via the C-V model are located in the NE, central and SW parts of the deposit. Mo and Re enriched zones correlate with molybdenite in the deposit.