Uranium Transport in F-Cl-Bearing Fluids and Hydrothermal Upgrading of U-Cu Ores in IOCG Deposits

Figure 12

Uranium versus F concentrations in the Olympic Dam ores, as a function of Fe (mainly hematite) content and Cu grades. (a) Cu unmineralized samples (Cu < 300 ppm); (b) Cu weakly mineralized samples (300 < Cu< 1000 ppm); (c) Cu moderately mineralized samples (Cu = 1000–3000 ppm); and (d) high-grade Cu samples (Cu ≥ 3000 ppm). Data from Ehrig et al. [36].

(a)

(b)

(c)

(d)