Drilling at Boab’s Sorby Hills lead-silver-zinc project in WA has started strongly, with more than 3,000m across 31 holes completed of the Phase V 4,200m program.

An extra 4 holes were added after core logging results extended hydrothermal-style mineralisation more than 100m northwest at the Omega deposit and several holes extended mineralisation at the B-Deposit.

Boab (ASX:BML) is planning more drillholes to follow up lead mineralisation intervals intersected 500m to the west of the Norton deposit – including a zone of zinc dominated mineralisation within a major fault breccia from 75m.

The rest of the program will target a cluster of holes at the central Omega Deposit, several holes at the Beta Deposit and the drilling of conceptual targets at Eight Mile Creek.


Aiming to extend the mineralised zone

“We are extremely excited by the initial findings the current drilling program has brought to light,” Boab managing director and CEO Simon Noon said.

“We believe these results will enable us to model the geometry of a new style of mineralisation which we first recognised in the Phase IV drill holes in the north of Omega deposit.

“We are also particularly excited about the mineralisation intercept encountered when testing an isolated historic anomaly 500m west of Norton deposit.

“Additional holes will be drilled over the next few weeks aiming to extend this new structurally controlled mineralised zone.”


Definitive feasibility study underway

The main aim of the Phase V drilling program is to investigate opportunities to increase mine life and proposed production capacity at Sorby Hills as part of the ongoing Definitive Feasibility Study (DFS).

The idea is to test and validate the interpretation of portions of the resource located near, but outside the current open-pit designs with a view to incorporating these prospective tonnes into the mine plan.

The drilling will also investigate:

  • The high silver potential of the Alpha and Beta deposits (with deposit resources of 2 million tonnes at 5% lead equivalent (3.1% lead, 1% zinc and 67 g/t silver) and 3.3 million tonnes at 6.3% lead equivalent (4.6% lead, 0.4% zinc and 61 g/t silver) respectively) which are not included in the project’s mining inventory);
  • Shallow near pit high-grade targets presently not included in either the Sorby Hills mineral resource or mining inventory; and
  • Highly prospective targets at Boab’s 100% owned Eight Mile Creek Project – immediately south of Sorby Hills.

Boab is confident that drilling at the Omega northwest and the Alpha and Beta deposits represent a relatively low-risk opportunity to materially extend the Sorby Hills mine life.


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This article was developed in collaboration with Boab Metals a Stockhead advertiser at the time of publishing.

 This article does not constitute financial product advice. You should consider obtaining independent advice before making any financial decisions.