Tungsten Mining NL Discovers Significant Shallow Oxide Gold Mineralisation at Mt Mulgine Project

Strategic Insights -

Sydney-based Tungsten Mining NL has announced a major discovery of shallow oxide gold mineralisation at its Mt Mulgine Project in Western Australia. The discovery, made through the review of historic drilling results, supports the company's integrated development strategy, where near-surface gold presents an opportunity to offset pre-strip costs and enhance project economics ahead of large-scale tungsten development.

The review of historic drilling data has identified significant shallow oxide gold mineralisation located partly or wholly within the overburden of the proposed tungsten open pit shell at the Mulgine Trench deposit. The results suggest that the gold mineralisation is hosted by altered mafic, ultramafic, and greisen units and dips shallowly towards the northwest.

Key Takeaways:

  • The review of historic drilling results has identified significant shallow oxide gold mineralisation at the Mulgine Trench deposit, which is located partly or wholly within the overburden of the proposed tungsten open pit shell.
  • The gold mineralisation is hosted by altered mafic, ultramafic, and greisen units and dips shallowly towards the northwest.
  • The results suggest that the gold is enriched in the weathering profile by supergene process and grade decreases beneath the base of oxidation.
  • The discovery supports Tungsten Mining NL's integrated development strategy, where near-surface gold presents an opportunity to offset pre-strip costs and enhance project economics ahead of large-scale tungsten development.
  • The Mulgine Trench oxide gold target has been drilled in numerous campaigns between 1995 to 2015, and drilling defined significant oxide gold mineralisation over 400 metres of strike and is open to the northeast and southwest.
  • The Bobby McGee pit was drilled between 1995 and 2015 and defined significant oxide gold mineralisation over 200 metres of strike, associated with shallow to moderately steep north-northwest dipping stacked lodes in mafic to ultramafic units.

Statistics:

  • A total of 1,106 reverse circulation and diamond holes have been drilled at the Mulgine Trench deposit, with a total of 60,682 metres of drilling completed.
  • The drilling defined significant oxide gold mineralisation over 400 metres of strike and is open to the northeast and southwest.
  • The gold mineralisation is hosted by altered mafic, ultramafic, and greisen units and dips shallowly towards the northwest.
  • Reconciled Minjar Gold Pty Ltd mine production from the Bobby McGee pit mined in 2014 was 109,629 tonnes at 1.36 g/t gold.
  • The Mt Mulgine Project has been subjected to intense exploration for gold, tungsten, and molybdenum since the 1960s, with most of the work focused on Mulgine Trench and Mulgine Hill.

Sources:

  • Tungsten Mining NL news release, dated [not specified in the source material].
  • General Gold Resources NL close-out report, dated 2019.
  • Minjar Gold Pty Ltd report, dated [not specified in the source material].