Cosmo Metals has reported broad gold mineralisation at its Kanowna Gold Project, with new diamond drilling revealing continuous mineralised zones down dip, highlighting a large, underexplored system along the Kanowna Shear.
- Broad mineralised zones of 15.1m and 12m at 0.35g/t Au confirmed
- Mineralisation continuity extends ~100m down dip from 2024 drilling
- Kanowna Shear at Adder remains sparsely tested below 100m depth
- Follow-up drilling targets being defined for Kanowna Gold Project
- Exploration advancing at Bingara and Mona projects in NSW
Broad Gold Mineralisation Confirmed at Adder Prospect
Cosmo Metals Ltd (ASX:CMO) has unveiled encouraging assay results from diamond tails drilled at the Adder prospect within its Kanowna Gold Project (KGP), located just 13km northeast of Kalgoorlie. The southernmost hole, ADRD003, returned broad mineralised intervals including 15.1 metres at 0.35 grams per tonne (g/t) gold from 189.9 metres and 12 metres at 0.35g/t from 209 metres, within a wider 31.1m zone averaging 0.33g/t Au. These results confirm continuity of mineralisation approximately 100 metres down dip from a 29m intersection at 0.48g/t reported in 2024, reinforcing the presence of a significant mineralised system along the Kanowna Shear.
Sparse Testing Below 100 Metres Highlights Exploration Upside
The Kanowna Shear at Adder remains largely underexplored below 100 metres vertical depth, with drilling to date covering only a sparsely tested 2-kilometre section. Apart from ADRD003, recent drilling included two other holes, ADRD002 and ADRC001, but no significant mineralisation was intersected below 100m in ADRD002’s diamond tail. The lack of deep drilling along this structural corridor points to considerable potential for further discoveries. Cosmo’s Managing Director, Ian Prentice, emphasised the scale potential of the system, noting the Kanowna Shear and its splays act as conduits for gold mineralised fluids, with future work focusing on identifying structural and lithological traps that may host higher-grade zones.
Technical Details and Geological Setting
The drilling campaign at Adder comprised three widely spaced holes along the Kanowna Shear, with diamond tails extending two Reverse Circulation (RC) precollars to depths beyond 220 metres. The mineralisation is hosted within black shale sequences and associated with quartz veining and sulphide mineralisation, including pyrite and arsenopyrite. The geological setting features the Panglo Basin sediments unconformably overlying the Scotia-Kanowna Dome, with the Kanowna Shear representing a major structure facilitating hydrothermal fluid migration. This environment is analogous to the adjacent Northern Star Resources’ +7 million ounce Kanowna Belle gold mine, underscoring the prospectivity of the area.
Broader Exploration Activity Across Cosmo’s Portfolio
Beyond Kanowna, Cosmo is advancing exploration at its 484.1km2 Bingara Gold, Antimony & Copper Project in New South Wales, with upcoming soil geochemistry and geological mapping programs targeting orogenic gold and antimony mineralisation at the Plunkett & Cassidy prospects. Additionally, preparations are underway for maiden drilling at the Mona Copper, Gold and Silver prospect within the Bingara VMS belt, which has returned high-grade surface assays including 4.93% copper and 11.65g/t gold from historic mining mullock dumps. These efforts signal a multi-front exploration approach aimed at unlocking value across Cosmo’s diverse project suite.
Bottom Line?
Kanowna’s broad mineralised zones confirm a compelling gold system, but sparse deep drilling means the real prize lies in follow-up targeting to pinpoint higher-grade shoots.
Questions in the middle?
- How will Cosmo prioritise follow-up drilling along the sparsely tested Kanowna Shear below 100m?
- What structural controls might host higher-grade mineralisation within the broad zones identified?
- How will exploration progress at Bingara and Mona complement the Kanowna Gold Project’s growth?