The drilling program, that ended in November 2006, has confirmed mineralization of the tonalite. A resource calculation undertaken by RSG
Global in 2007 has defined a resource of 760,000oz of gold.
Drilling undertaken end of 2007 established that mineralization in the Nampala deposit is deep-rooted in the ground and is not the result of superficial enrichment as it is associated with the setting of the lamprophyre massive intrusive
with the injection of mineralized fluids
(silica-carbonate-sulphides-gold) in the sediments and a subsequent
alteration (sericite, chlorite and silica) that appears to be more
predominant at depth. The lamprophyre itself is occasionally altered
and mineralized at depth. With mineralization continuity at depth, the
deposit shows potential for an increase in the gold resource.
The fact that Nampala is deep-rooted in the ground opens interesting
perspectives in the exploration of the Nampala deposit and
on the entire Mininko property. For example the gold-bearing N’Golola
anomaly located south of Nampala shows a similar geological context.
The deposit remains open to the west and at depth. Robex objective is to reach sufficient gold resource to allow exploitation by heap-leach gold mining.