Helix eyes further Black Range copper exploration

Helix Resources (ASX:HLX) reports structural interpretation of the Black Range prospect is currently being prepared that will guide future drilling which is planned to occur as soon as practical.

Work is underway to outline the next drilling program at Black Range – given the rugged and wooded terrain, significant planning and approvals for site clearance is required. A follow-up drill program is also being planned.

The $9.29 million market capitalisation company says this upcoming drill program follows the completion of maiden reverse circulation (RC) drilling at the prospect, which was designed to identify copper mineralisation within the regional-scale polymetallic surface anomaly.

The initial 2 drillholes were targeted at the eastern end of the large-scale Black Range Cu-bismuth anomaly near several historic shallow shafts. The objective was to assess the mineralisation style and orientation before ‘stepping out’ to test the full 6km east-west trending extent of the anomaly.

Key results include hole BBRC001 with 1m @ 1.11% copper within 8m @ 0.35% copper from 126m; and hole BBRC002 with 2m @ 1.44% copper within 8m @ 0.63% copper from 76m. 

The holes were targeted at the eastern end of the ‘large-scale’ Black Range copper-bismuth anomaly near 2 historic shallow shafts to assess the mineralisation style and orientation before stepping out to test the full 6km east-west extent of the anomaly. 

Helix notes copper and iron veins and disseminations were flagged within a 450m long north-northwest-trending mineralised zone, which is open to the north and south through rock chip and lag sampling. 

The company believes these results indicate the presence of a different style of mineralising system to what has been delineated at the Canbelego Main Lode. 

Helix Resources Managing Director Mike Rosenstreich says the company is on the right path towards uncovering potential ‘larger-scale’ copper mineralisation.

“At the Black Range prospect, we have delineated a significant, regional-scale polymetallic anomaly with an intrusive-related geochemical signature. Whilst there are numerous scattered historic copper-mine workings, there has been no previous drilling in the area and the initial RC drilling recently completed by Helix intersected significant pyrite and chalcopyrite mineralisation. 

Whilst the copper grades in these first 2 drillholes are not spectacular, within the context of the geochemical and mapping data they do suggest prospectivity for larger-scale copper mineralisation. 

The style of mineralisation observed suggests something a bit different for the region – than the ‘Cobar’ copper lode model we have at Canbelego

The style of mineralisation observed suggests something a bit different for the region – than the ‘Cobar’ copper lode model we have at Canbelego. The large-scale and multi-element nature of the anomaly, now supported by highly anomalous drill intercepts leads us to look within the broader anomaly area to define further drill targets,  particularly in potential parallel zones immediately west of Black Range. 

Helix has a commanding land position in a highly endowed copper (and gold) province – where we are generating new targets and testing them with the drill bit. It’s a numbers game – the more targets you test the greater chance of discovery. The team is working hard making new copper discoveries and I look forward to providing further updates.” 

Meanwhile, Helix will move forward with a 3,000m drilling program in early November at its Bijoux prospect about 20km southeast of Black Range along the Rochford Trend. 

Helix Resources is scheduled to exhibit at the International Mining and Resources Conference (IMARC) held in Sydney from 31 October to 2 November 2023. Mining.com.au is an official media partner of IMARC, which will showcase 470-plus mining leaders and resource experts throughout 7 concurrent conferences.

Helix Resources is ‘all-in on copper’ exploration within the prolific copper-producing region of Cobar, New South Wales to generate new copper targets on its ‘large’, underexplored ground position.  

Helix Resources had $4.214 million cash and cash equivalents at hand as of 30 September 2023, according to its latest quarterly report.

Write to Adam Drought at Mining.com.au

Images: Helix 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.