Brisbane, Australia — MININGREVIEW.COM — 01 April 2010 – Discovery Metals (DML) “’ an Australian mining exploration company focused on copper in north-western Botswana “’ says the scoping study at its Boseto copper project has confirmed the economic viability of underground mining at its Zeta mineral resource.
Revealing this in a statement issued here, the company said a prefeasibility study for the Zeta underground project had started, and was scheduled for completion during September this year. It would examine scenarios involving integration with the open-cut mining operations currently employed at the Boseto project.
“The positive results of this study are very encouraging,” said DML managing director Brad Sampson. “We envisage that the Zeta underground proposal will improve in the future, because at this stage, the scoping study manager has used conservative estimates throughout. We will refine the grade and cost information as we proceed further with underground studies at Zeta and other areas at Boseto.”
DML said in a statement that the scoping study had estimated an underground mineral resource of around 25Mt, at 1.4% copper, and 23.1 g/t silver, with an average base case core production of around 1.2Mt over an eight-year life-of mine, for a yearly production of 15 300t copper and 480 000 oz of silver.
It added that the underground mine scoping study had been progressed in parallel with the Boseto copper project bankable feasibility study (BFS). The completion and start of the progressive release of the results of this BFS were imminent.