Altair Minerals Unveils Expansive Gold Targets at South Oko and North Peters
Altair Minerals (ASX:ALR) has identified a regionally extensive high-grade gold structure at North Peters and confirmed strong gold enrichment beneath surface soils at South Oko, setting the stage for imminent diamond drilling and expanded exploration in Guyana.
- Regionally extensive high-grade thrust structure identified at North Peters
- Diamond drilling to commence at North Peters post-wet season
- Auger assays validate and extend South Oko W1 soil anomaly
- Expanded field operations with additional camps at South Oko
- Venatica copper project due diligence extended to August 2026
North Peters Reveals Major Structural Gold Target
Altair Minerals has uncovered a potentially game-changing structural control on gold mineralisation at its North Peters (NP) prospect in Guyana’s Puruni District. By relogging and digitally remodelling historic diamond drill data from the 1960s and 70s, the company has identified two key structural features: a mineralised shear contact between granodiorite and quartz monzonite porphyry, and a regional high-grade thrust fault that crosscuts this mineralisation.
This high-grade thrust structure is not only responsible for some of the best historical intercepts; such as 85 metres at 4.81 g/t Au and 20 metres at 5.80 g/t Au; but also extends approximately 3.5 km southwest and 4.5 km northeast beyond the currently defined mineralised footprint. The regional scale of this structure materially expands the exploration potential at North Peters, with the nearby Peters Mine on the same structural trend having historically produced 42,000 ounces at an exceptional 40 g/t Au.
Diamond drilling is poised to commence immediately after the wet season ends later this month, with all logistics and equipment in place despite challenging weather conditions. This upcoming program will prioritise testing the high-grade thrust and its extensions, aiming to unlock a larger, structurally controlled gold system.
South Oko Auger Drilling Validates and Expands Geochemical Targets
At South Oko (SOKO), the first batch of auger drilling results from the greenstone domain has provided a significant boost to the company’s confidence in its W1 soil anomaly. Auger holes averaging 2.5 metres deep revealed gold concentrations up to seven times higher than surface soil samples, directly beneath the laterite cover, confirming that the surface geochemical anomalies are sourced from proximal bedrock mineralisation rather than transported material.
These results extend the W1 geochemical target by approximately 250 metres along strike, adding to the already impressive scale of the South Oko system. The company has expanded its field operations to three camps, including two new temporary sites to support ongoing regional soil sampling and auger programs along the 4.5 km of the Oko Shear tested so far, with another 10 km of strike yet to be sampled.
The strengthening of the anomaly with depth, especially on Line 694500N where auger samples averaged 70 ppb Au compared to 9 ppb in soils, underscores the prospectivity of the target and sets the stage for an aggressive, multi-rig drilling campaign over the next 12 months.
Broader Exploration and Project Updates
Altair continues to advance its exploration footprint in Guyana, a jurisdiction rapidly gaining attention due to its stable political environment and underexplored Birimian greenstone belt geology that parallels prolific West African gold provinces. The Greater Oko Project, encompassing both South Oko and North Peters, now stands as one of the largest contiguous landholdings in the region.
Meanwhile, the company’s Venatica copper project in Peru remains under due diligence, with the period extended to 31 August 2026 to finalise shareholder approvals and performance rights issuance. Venatica sits within a world-class porphyry copper belt near major mines such as Las Bambas, offering a complementary exploration avenue.
Bottom Line?
Altair’s identification of a large, structurally controlled high-grade gold system at North Peters combined with validated geochemical targets at South Oko positions the company for a potentially transformative drilling campaign in a premier gold jurisdiction.
Questions in the middle?
- Will diamond drilling at North Peters confirm the extent and grade of the newly identified high-grade thrust structure?
- How will the expanded geochemical footprint at South Oko translate into drill targets and resource potential?
- What impact will weather and logistical challenges in Guyana have on the timing and scale of Altair’s multi-rig drill program?
