Great Boulder Resources Ltd (ASX:GBR) has received strong gold assay results from the first eight holes of a 41-hole Phase 5 reverse circulation (RC) program, including intersections of up to 4 metres at 40.68 g/t from Mulga BIll prospect within the Side Well Gold Project near Meekatharra in Western Australia.
Highlights from the drilling include:
- 9 metres at 21.21 g/t gold from 207 metres, including 4 metres at 40.68 g/t from 210 metres;
- 6 metres at 5.99 g/t from 88 metres, including 1-metre at 28.48 g/t from 92 metres; and
- 14 metres at 4.25g/t from 80 metres, including 1-metre at 21.18 g/t from 83 metres.
Moving forward, diamond drilling is scheduled to commence at Mulga Bill in mid-February and an aircore rig will recommence drilling along the Mulga Bill corridor in the coming week.
“Cracking grades”
Great Boulder managing director Andrew Paterson said: “This is a fantastic start to the year for Mulga Bill, with more cracking grades in the central area where we have previously intersected zones up to 14 metres at 36.12 g/t.
“The subvertical interpretation on the high-grade zone in hole 062 is interesting, and it highlights the fact that we learn more about this deposit with every hole.”
HIghlighted drill intersections at Mulga BIll.
Gold mineralisation
The results include three holes drilled in a fence across the top of a geophysical anomaly identified in work completed by GBR last year, where a conductive feature coincides with the gravity high that appears to map the position of mineralisation further north within Mulga Bill.
Further, the holes were analysed by photon assay in order to achieve the fastest possible assay turnaround.
Notably, strong disseminated pyrite and gold mineralisation was identified in three RC holes drilled across the top of a coincident gravity and EM anomaly to the south of the previous drilling.
“Disseminated pyrite”
Paterson adds: “Further to the south we drilled three holes over the geophysical target. It was great to see thick zones of disseminated pyrite in all three holes, highlighting the width of the system.
“The assays show zones of low to medium-grade gold mineralisation, with a maximum assay value of 5.91 g/t from 161 metres in 21MBRC095.
“This result gives us confidence to drill a deep diamond tail through the centre of the geophysical target when we have a rig on site next month.”
Forward plan
Great Boulder expects assays from the remaining 33 holes in this program, as well as 65 aircore holes from Mulga Bill and Ironbark that were drilled concurrently, to be received during February.
In addition, diamond drilling is scheduled to commence at Mulga Bill in mid-February,
Furthermore, an aircore rig will recommence drilling along the Mulga Bill corridor in the coming week.