Predictive Discovery (ASX: PDI) has reported a ‘high grade’ gold zone of up to 400 vertical meters from step-out diamond drilling at its Bankan Gold Project in Guinea.
The company reported a number of ‘outstanding’ broad, high-grade results from three diamond holes, including:
- Hole BNERD0090: 26m @ 7.0g/t Au from 407m, including:
- 11m @ 13.6g/t Au from 407m
- Hole BNERD0091: 6m @ 5.9g/t Au from 393m, including:
- 6m @ 12.2g/t Au from 400m
- Hole BNERD0092: 38m @ 3.6g/t Au from 380m, including:
- 15m @ 6.4g/t Au from 395m
Results from the three holes, which were tasked with testing depth extent at NE Bankan central, confirm the prospect to be a high-grade gold zone over a strike length of more than 100m.
Addressing the update, Predictive Discovery Managing Director Paul Roberts said: “These exciting new results confirm that the NE Bankan central high-grade gold zone is persisting to 400 metres vertical depth over a strike length of more than 100m and has obvious potential to grow further both to the south and at depth.
Drilling results have put the company on track to deliver a mineral resource estimate for NE Bankan, along with Bankan Creek by late September 2021.
NE Bankan shaping up as a large gold deposit
According to the company, reinterpretation of earlier holes and ongoing drilling into the newly recognised high-grade gold zone indicates that higher gold grades are strongest directly below a major shear zone where it coincides with the contact between mafic volcanics (above) and gold mineralised felsic intrusive rocks (below).
The company reports that the recognition of the shear/mafic/felsic contact control is now being used to target depth and along strike extensions to the high-grade zone, as well as infilling at shallower depths to gain a better understanding of gold grade distribution.
Predictive Discovery has said that NE Bankan is continuing to shape up as a large gold deposit containing a deepening high-grade core zone with excellent geometry to support a large-scale open pit mine.
Assay results are pending for two more diamond drill holes testing the same depth range, with potential to further extend the strike length of the high-grade zone.