Ban Chang Infill Drilling Approaches Completion
Blackstone Minerals Limited (ASX:BSX) has obtained further infill drilling success at Ban Chang, the most advanced massive sulphide vein (MSV) target at the Ta Khoa Nickel – Copper- PGE Project in Northern Vietnam.
Highlights include 5.35m of massive sulphide nickel intersected in drill hole BC21-66.
Significant infill intercepts include:
- BC21-18 3.8m @ 1.13% Ni, 0.59% Cu, 0.06% Co & 0.52g/t PGE1 from 92.5m Incl. 1.6m @ 2.49% Ni, 0.65% Cu, 0.14% Co & 1.01g/t PGE1 from 93m
- BC21-23 1.83m @ 1.57% Ni, 0.32% Cu, 0.09% Co & 0.96g/t PGE from 82.39m Incl. 1.27m @ 2.01% Ni, 0.42% Cu, 0.12% Co & 1.13g/t PGE from 82.39m
- BC21-24 1.52m @ 1.95% Ni, 0.42% Cu, 0.1% Co & 0.78g/t PGE from 51.02m BC21-34 13.85m @ 0.51% Ni, 0.33% Cu, 0.03% Co & 0.3g/t PGE1 from 56m Incl. 4.13m @ 1.16% Ni, 0.72% Cu, 0.07% Co & 0.67g/t PGE1 from 65.72m
- BC21-35 3.6m @ 1.15% Ni, 1.1% Cu, 0.07% Co & 0.7g/t PGE from 38.3m Incl. 2m @ 1.85% Ni, 1.57% Cu, 0.1% Co & 1.1g/t PGE1 from 39.6m
- BC21-38 6.1m @ 1.07% Ni, 0.63% Cu, 0.06% Co & 0.94g/t PGE1 from 43.9m Incl. 1.37m @ 1.63% Ni, 0.62% Cu, 0.09% Co & 1.41g/t PGE from 48.63m
“We look forward to presenting a maiden resource at Ban Chang and incorporating the successful outcomes of infill drilling into a mine plan as part of our Upstream Business Unit PFS.” Managing Director, Scott Williamson, said.
“Drilling at Ban Chang is tightly spaced and has consistently intersected massive sulphide mineralisation, providing a high level of confidence as we progress through the next phases of mine development.”
Ban Chang is located 2.5km south-east of the existing processing facility and the Ban Phuc DSS deposit adjacent to the Chim Van – Co Muong fault system.
The prospect geology consists of massive and disseminated sulphides (DSS) hosted within a tremolitic dyke swarm which intruded into phyllites, sericite schists and quartzites of the Devonian Ban Cai Formation.
The known dyke swarm is approximately 900m long and varies between five and 60m wide. The dykes and massive sulphide are interpreted to be hosted within a splay (and subsidiary structures) off the major regional Chim Van – Co Muong fault system. Drilling at Ban Chang has identified multiple massive sulphide lenses, which are often associated with broader disseminated sulphide zones.
Preliminary mining studies suggest that Ban Chang is amenable to a modern mechanised underground mining. As part of the ongoing work for the Upstream Business Unit (UBU) Pre-feasibility Study (PFS), Ban Chang is being assessed as an ore source for the existing 450ktpa concentrator and/or as a feedstock that complements processing of disseminated sulphide ore (i.e., from Ban Phuc) for the larger proposed concentrator.
For further information please visit: https://www.blackstoneminerals.com.au/