The Perama oxide gold deposit is a typical low sulfidation, sediment hosted deposit of Eocene to Oligocene age, located in the Northeastern Greece, in the border between the Rodopi and Evros Perfectures. The gold mineralization has been fed into the system by structurally controlled feeders inside andesitic volcanic breccias and disseminated into overlying porous sandstone units. Eighty percent of the gold is hosted by sandstones and the rest is associated with andesitic breccias and conglomerates. The Perama deposit is free of As (arsenic), Pb (lead) or other heavy metals.
 

Deposit Highlights:

Mineable resources   Gold resources     Annual Processing Rate   Stripping ratio (waste:ore)   Project life       Metallurgical Recovery   Average Annual Production

9.378 MT @ 3.2 g/t Au, 4.2 g/t Ag   1.36 million ounces Au (0.966 million recoverable)   1.173 MT ore   0.29:1   1 year construction  8 years gold production  1-5 years rehabilitation and monitoring   Gold 90%, silver 60%   120,000 ounces gold

The operation involves an open pit mining of the ore and waste, ("waste" is the low grade barren rock surrounding the ore that is uneconomic to process), hauling the ore to the run of mine, ROM, pad to be stockpiled. The ore is then crushed in a closed system with a wet scrubbing system to collect the dust, the crushed ore is stored in a bin, which is then fed to a milling section where the ore is ground up to 80% passing 100 micron in water. The ground ore is then leached with a dilute cyanide solution in the leach tanks where the gold is recovered. After the cyanidation process, the cyanide is destroyed using the INCO S02/air cyanide destruction process, the tailings are then dewatered as they pass through filter press units and the dry stack (filter cake) is deposited into the Mine Waste Management Facility, MWMF, for storage.