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Twenty Seven Co's gold-VMS focused drilling tracking ahead of schedule at Rover Project

With 60% of the 20 drill-hole campaign complete, the RC drilling team has finished work at Harmonic (12 drill-holes) and is currently progressing the remaining six drill holes at Creasy-1.

Twenty Seven Co Ltd - Twenty Seven Co's gold-VMS focused drilling tracking ahead of schedule at Rover Project
Reverse circulation drilling at the Rover Project in March

Twenty Seven Co Ltd (ASX:TSC) has completed around 60% of reverse circulation (RC) drilling at the Rover Project in Western Australia ahead of schedule.

Follow-up drill holes have been completed at the Harmonic VMS (volcanogenic massive sulphide) prospect and RC drilling is in progress at the Creasy-1 gold prospect.

The objective of this second RC drilling campaign is to build on the inaugural program which had standout intersections resulting in the Creasy-1 gold discovery and VMS signature at the Harmonic prospect.

Focused on expanding Creasy-1 gold discovery

TSC chief executive officer Ian Warland said: “Our second RC drilling campaign, which is tracking ahead of schedule is focused on expanding the shallow gold discovery at Creasy-1 and understanding Harmonic’s VMS potential.

“This is an exciting time for TSC and we are looking forward to defining the mineralisation when the initial assay results are received back from the laboratory.

“Concurrently, the geology team are working on the next RC drilling program which factors in results from the recent AEM survey.”

Follow-up drilling

Reverse circulation drilling in 2019 intersected shallow high-grade gold in multiple narrow gold veins at Creasy-1.

The gold mineralisation is located along the extensive Illara shear zone which forms part of the 20 kilometres prospective gold strike - a part of the Maynard Hills greenstone belt on the eastern boundary.

New phase of RC drilling will focus on two areas along the Illara shear that previously intersected high-grade gold mineralisation, which remains open along strike and down dip. The two areas of focus at Creasy-1 include:

  • Focus Area 1: Around 200 metres of strike length where high grades up to 1 metre at 51g/t gold was intersected in drill-hole 19RVRC001 from 54 metres and 4 metres @ 4.3g/t gold including 1 metre at 14g/t Au (19RVRC014) from 104 metres; and
  • Focus Area 2: The best intersection was 5 metres at 9 g/t gold including 1 metre at 44.1g/t gold from 51 metres (19RVRC006) – a review of historic drilling at around 160 metres south indicates the drilling did not effectively test the prospective shear zone between the quartzite and mafic rocks.

Follow-up drilling will also be undertaken at the Harmonic VMS prospect around 500 metres north of Creasy-1, where shallow gold mineralisation associated with anomalous base metals was intersected in late 2019.

Results included:

  • 14 metres at 1. g/t gold, including 2 metres at 3.3g/t gold and 21.2g/t silver from 26 metres;
  • 9 metres at 1.4 g/t gold, including 1 metre at 7.3 g/t gold from 58 metres; and
  • 1 metre at 1.7 g/t gold from 45 metres.

This new phase of RC drilling aims to extend the mineralisation which currently is open down dip, and along strike to the north and south.

Next steps

Exploration at the Rover Project has been accelerated with key items on the forward agenda including:

  • Complete RC follow up drilling and assaying at Harmonic VMS and Creasy-1 gold prospects; and
  • Formulating the next RC drilling program that considers recent AEM survey results.

Quick facts: Twenty Seven Co Ltd

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