Italy focused zinc miner Alta Zinc (ASX: AZI) has announced the extension of the mineralisation to the east at its Pian Bracca zone at its Gorno Projecf and confirmed that the ‘Breno’ lens hosts high-grades and is thickening to the east with demonstrated continuity.
Managing Director, Geraint Harris, said mineralisation has now been defined over a strike length of 250m, based on the first 13 holes of the current campaign, with next drilling due to step out to the west at Pian Bracca.
The company also released the results of eight further drill holes and five new channel samples, with a number of highlights, including
- 8m at 8.8% Zn and 2.3% Pb (11.1% Zn+Pb) and 14g/t Ag from 16.3m;
- 8m at 9.7% Zn and 4.9% Pb (14.6% Zn+Pb) and 36g/t Ag from drill collar;
- including 3.4m at 22.5% Zn and 11.3% Pb (33.8% Zn+Pb) and 89g/t Ag from 5.4m; and
- 7m at 13.3% Zn and 3.7% Pb (17.0% Zn+Pb) and 22g/t Ag from 5.2m.
Channel sampling also returned some of the highest grades yet at the Gorno Project:
- 8m at 30.4% Zn and 5.0% Pb (35.4% Zn+Pb) and 41g/t Ag. •
Mr Harris said every hole to date has intersected significant zinc, lead and silver mineralisation. Within the Pian Bracca Zone drilling has identified multiple and closely-stacked layers of mineralisation which are accessible from existing underground development.
“I am delighted that these exploration results continue to build upon the success of our first five holes and that within a such a short time frame our team is delivering consistently exciting grades and thickness,” he said.
“Our new mineralisation has lain undiscovered adjacent to old workings and is easily accessible from existing underground development.”
Mr Harris said that so far, the drilling has successfully defined the mineralisation and geology present in the central-eastern portion of the Pian Bracca Zone. Importantly, historical results show that Pian Bracca is open along strike to both the east and the west.
The western extension will form the next phase of the drilling programme, where channel samples and historic data provide a guide to determine drill positioning.
The aim will be to extend the known mineralisation to the west before looking to extend the mineralisation to the north, south and east.