Initial data from core leach tests at the Phoenix in-situ recovery (ISR) project has established uranium concentrations that are up to four times the amount assumed in the prefeasibility study (PFS), dual-listed Denison Mines reports.
The test work returned concentrations of 13.5 g/l to 39.8 g/l, which compares with the previous metallurgical test work that supported a uranium concentration of 10 g/l for the ISR processing plant design used in the PFS.