ASX-listed junior explorer Twenty Seven Co is gearing up for another round of auger drilling at its Yarbu gold project located approximately 160 kilometres northeast of Southern Cross in Western Australia. The campaign is designed to hit priority targets and infill anomalies detected in last year’s exploration.
Twenty Seven’s first go with the auger drill blitzed across its entire 223 square kilometre project. The initial campaign was designed as a broadly-spaced, 662 hole onslaught in most comprehensive geochemical sampling to date on the underexplored parcel of land.
Three specific areas were delineated last year highlighted by results of up to 164 parts per billion gold in addition to several anomalous zones of higher than 20ppb gold. Interestingly, the results led the junior explorer to believe the area’s gold anomalism is associated with fold hinges and limbs.
The company now plans to sink a further 330 holes in a more concentrated fashion focusing on the highest priority anomalies including a large 1.9km by 1.4km area hosting the 164ppb sample.
Drilling will be performed using a car-mounted auger rig allowing the explorer to drill out its campaign efficiently and with low environmental impact. Each hole will be drilled to a depth of 2-3 metres depending on penetration across the areas of the previously identified anomalisms.
Whilst not providing the same level of detail as its diamond core cousin, auger drilling is a highly effective and low-cost means of exploration - especially in a project’s early stages. The quick sampling, combined with the lab’s highly sensitive and ultrafine particle assay technique should frame an accurate picture for the junior explorer to use in guiding further work.
Management anticipates receiving the assays by late May at which point the junior explorer plans to analyse the results and fine tune its next steps at Yarbu.
Twenty Seven Co Chief Executive Officer, Simon Phillips said: “Our maiden auger program, completed in July 2021, confirmed gold mineralisation across three broad areas and this follow-up program will aim to define potential targets for deeper drilling.”
Notably, the Yarbu project is seated adjacent to ASX-listed Ramelius Resources and its Marda gold project in the highly prospective Marda-Diemals greenstone belt. Ramelius acquired the 5.3 million tonne resource grading 1.96 grams per tonne gold for $13 million in cash in 2018.
Twenty Seven says it is assessing options for its proximal Mt Dimer project to the southeast that also lies in the same greenstone belt. The company is also awaiting final multi-element and 1m gold results from its Rover gold project, west of Leonora.
Twenty Seven Co’s two initial drill campaigns across the entirety of its Yarbu project area have set the stage for a more concentrated and focused third leg to come. The results should soon start to paint a picture of how Yarbu stacks up next it its well-endowed neighbour.
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By Matt Birney
