Havilah Resources announced that bedrock assay results for drilling carried out on the open pit floor at the Portia Gold Mine in SA showed economic grade gold mineralisation extending more than 20 metres into the bedrock below the current open pit floor.
The company said that the best reportable result so far was 23 metres of 6.8 g/t Au from the pit floor to 24 metres vertically below.
According to Havilah, its mining partner Consolidated Mining and Civil (CMC) has already mined and delivered a portion of this gold mineralisation to the ore stockpile at the processing plant.
CRC is reportedly approaching the final stages of exposing the open pit floor in accordance with the original mine design.
The remainder of the original target in pit resource of 355,000 tonnes of ore material will be delivered to the surface within the next month, largely within the original 18 month time frame estimated by CMC, despite several rain delays and the geotechnically driven pitwall re-profiling.
Havilah Managing Director, Cr Chris Giles said the company will continue to maintain a program of drilling, both within and adjacent to the current pit, with the aim of expanding the Portia resource.
“Portia started out as a short 18 month mining operation and now on cue, the current open pit is rapidly approaching its original design footprint. Our mining partner, CMC, has performed admirably in meeting its Portia mining targets in a very professional and safe manner, notwithstanding many challenges along the way,” he said.
“Our earlier drilling has confirmed southern extensions to the Portia gold mineralisation and we have been discussing with CMC for some time about a pit wall cutback, which will potentially extend the Portia mine life for at least another 12 moths. Drilling of bedrock beneath the open pit floor has confirmed economic grades of gold mineralisation for a further 24 metres depth and we expect to ultimately mine all of this gold bearing bedrock material and possibly even beyond this depth subject to our ongoing drilling results.”
Additional drilling on the pit floor is planned once the pit floor is available and is safe to do so.