Great Boulder hits high grades at Side Well 

Great Boulder Resources (ASX:GBR) is looking to undertake another Aboriginal heritage survey within the Ironbark Corridor on the back of recent drilling results from its Side Well Gold Project in Western Australia. 

The $26.78 million market capitalisation company says these new results have been received as part of a phase five resource expansion and definition program, as well as an exploration program at both Mulga Bill and Mulga Bill North, respectively. 

Key results include hole 23MBRC084 with 8m @ 13.68 grams per tonne (g/t) gold (Au) from 64m, including 4m @ 25.33g/t Au from 64m; and hole 23MBRC076 with 7m @ 4.84g/t Au from 88m, including 3m @ 9.18g/t Au from 88m. 

The company reports Mulga Bill North displays potential as a ‘significant’ northern extension to the existing Mulga Bill resource, with mineralisation now defined over 700m of strike and remaining open in all directions. 

Great Boulder notes all drilling completed to date at both Mulga Bill and Ironbark will be incorporated into an upcoming Mineral Resource Estimate (MRE) update, which is scheduled to be delivered at the end of this month (October 2023). 

Meanwhile, the company expects the begin its second of two Aboriginal heritage surveys before the end of the month. 

Speaking on the results, Great Boulder Resources Managing Director Andrew Paterson says the company may have uncovered a new ‘high-grade’ zone outside the current resource.

“These results are the last eleven holes targeting shallow mineralisation at Mulga Bill, plus five exploration holes at Mulga Bill North.

The hole which intersected 8m @ 13.68g/t Au is outside the current resource at the northeastern end of Mulga Bill. At this stage, we’re not sure if it’s a new supergene zone or an extension of a high-grade west-dipping vein. In either case, it’s a new high-grade zone which adds ounces to the project.

In either case, it’s a new high-grade zone which adds ounces to the project”

At Mulga Bill North, it appears hole 23MBRC086 has intersected northeast-trending mineralisation. The next hole to the north didn’t drill deep enough to intersect that trend, so it remains open along strike. Our pathfinder geochemistry looks very promising in that area, and further drilling is required. 

Meanwhile, we are looking forward to the second heritage survey on the northern half of the Ironbark corridor. Our other drilling approvals are in place, and we’re looking forward to drill-testing these areas as soon as possible.” 

Great Boulder Resources currently holds a portfolio of ‘highly prospective’ gold and base metals assets in Western Australia. 

The company’s flagship Side Well Project is located near Meekatharra in the Murchison goldfield, where exploration has defined an inferred MRE of 6.2 million tonnes (Mt) @ 2.6g/t Au for 518,000oz Au. 

Great Boulder Resources had $4.284 million cash and cash equivalents at hand as of 30 June 2023, according to its latest quarterly report.

Write to Adam Drought at Mining.com.au

Images: Great Boulder Resources
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Written By Adam Drought
Born and raised in the UK, Adam is a sports fanatic with an interest in Rugby League and UFC/MMA. When not training in Muay Thai and Brazilian Jiu Jitsu, Adam attends Griffith University where he is completing his final year of a Communication & Journalism degree.

Great Boulder fuels Mulga Bill resource update 

Great Boulder Resources (ASX:GBR) is updating mineralisation wireframes to usher in an updated Mineral Resource Estimate (MRE) this month following the return of gold grades up to 248 grams per tonne.  

The $26.27 million market capitalisation company says these recent results, generated from 34 resource definition reverse circulation (RC) holes, are expected to boost the Mulga Bill MRE  at its flagship Side Well Gold Project.  

Key results include hole 23MBRC059 with 5m @ 98.89g/t gold (Au) from 249m including 1m @ 248g/t Au from 249m and 1m @ 229g/t Au from 251m; and hole 23MBRC064 with 5m @ 9.92g/t Au from 94m including 1m @ 43g/t Au from 94m. 

Great Boulder notes these results will be included in the updated MRE. 

The company’s geological team are now updating mineralisation wireframes in preparation for the updated MRE, which currently stands at 6.2 million tonnes (Mt) at 2.6g/t Au for 518,000 ounces. 

All assays from both phase four and five drilling are scheduled to be in-hand by early October. 

Great Boulder also notes the first of 2 Aboriginal heritage surveys have been completed at Ironbark South including the Saltbush prospect, opening up ‘highly prospective’ new targets, with first drilling scheduled in November. 

Speaking on the results, Great Boulder Resources Managing Director Andrew Paterson says: “Recent RC drilling at Mulga Bill has intersected more sensational gold grades, with assays as high as 248g/t Au. There are also broad intersections showing good grade closer to surface, which are important in a potential mining scenario.

As we finalise preparation for the pending Side Well resource update all of this data will inform the new model

As we finalise preparation for the pending Side Well resource update all of this data will inform the new model.

I’m also very pleased to report that the first of two Aboriginal heritage surveys was completed on schedule at Ironbark South. The second is scheduled for mid to late October, after which we’ll be able to start testing new targets that have never been drilled before. This is an exciting and important step forward in our exploration program at Side Well.”

Great Boulder Resources is a gold and base metal explorer focused on its portfolio of assets in Western Australia. The company’s Side Well Gold Project is located near Meekatharra in the Murchison gold field. 

As of 30 June 2023, the company had $4.284 million cash and cash equivalents at hand, according to its latest quarterly report.

Write to Adam Drought at Mining.com.au

Images: Great Boulder Resources
Author Image
Written By Adam Drought
Born and raised in the UK, Adam is a sports fanatic with an interest in Rugby League and UFC/MMA. When not training in Muay Thai and Brazilian Jiu Jitsu, Adam attends Griffith University where he is completing his final year of a Communication & Journalism degree.