Sego Resources Inc. has completed a five-line 3D IP Volterra diamond array survey over its Miner Mountain copper-gold porphyry project near Princeton, British Columbia. The survey, carried out by SJ Geophysics Ltd., has revealed deep chargeability targets beneath the known mineralisation at both the Cuba Zone and the South Gold Zone. These anomalies are expected to be the main focus of the company’s fully financed fall-winter drilling campaign, due to begin in mid-October 2026.
Cuba Zone target
The Cuba Zone is interpreted as the upper expression of a deeper alkaline porphyry copper system, similar to the Copper Mountain deposit. Mineralisation at Cuba runs as a northwest-southeast structural trend up to 300 m by 600 m. The latest 3D model has identified a high chargeability anomaly starting 400 m below surface and extending to the survey’s maximum depth of 500 m. The anomaly grows in size and strength with depth, reaching roughly 200 m by 500 m at its base.
Past drilling in hole DDH 71 intersected wide zones of phyllic and potassic alteration at depth, and the new model places those intervals in the vicinity of the large chargeability anomaly. The upcoming drill programme aims to test the anomaly at about 450 m depth to determine whether it represents a main porphyry copper mineralisation system.
South Gold Zone target
During the autumn 2025 diamond drilling programme, crews logged visible chalcopyrite along fractures and in clots within several holes. The sulphide mineralisation was associated with patchy-to-moderate potassic alteration, later overprinted by chlorite-sericite-pyrite alteration. Host rocks include faulted and brecciated monzodiorite, microdiorite and diorite intrusives. One-metre intervals within the altered core returned anomalous copper grades of 0.1% to 0.2% (1,000–2,000 ppm) associated with gold and silver.
The 3D IP survey has now outlined a chargeability anomaly extending from about 120 m in the north to roughly 450 m in the southeast, forming a semi-circle around the eastern part of the South Gold Zone at approximately 300 m below surface. Sego considers this anomaly potentially related to deeper alkaline porphyry copper-gold mineralisation.
Drilling plan and next steps
The company’s exploration team, in collaboration with SJ Geophysics, has built a new 3D model that integrates the IP chargeability and resistivity data, all past diamond drill holes, and geological and mineralisation information. A 2013 magnetic survey will be added to the model before drilling starts. Once that is complete, Sego will finalise drill hole collars, azimuths, dips and lengths. Maps and target details are expected to be posted on the company’s website in October.
Quality control procedures include systematic insertion of certified reference samples, duplicates and blanks, plus regular check assays at a second laboratory. The news release was reviewed and approved by Tor Bruland, P.Geo., a Qualified Person under NI 43-101.
Key takeaways
- 3D IP survey identifies deep chargeability anomalies beneath the Cuba Zone (from 400 m depth) and the South Gold Zone (from about 300 m depth).
- Drilling is fully funded and expected to start mid-October 2026, targeting the Cuba anomaly at approximately 450 m depth.
- Previous drilling at Cuba intersected phyllic and potassic alteration, consistent with a porphyry system. South Gold Zone showed visible chalcopyrite with copper grades of 0.1–0.2%.
- Sego owns 100% of the Miner Mountain project, an alkalic copper-gold porphyry property in British Columbia.
Common questions
What is the Miner Mountain project?
The Miner Mountain project is an alkalic copper-gold porphyry exploration project located near Princeton, British Columbia, 100% owned by Sego Resources Inc.
When will the drilling programme begin?
Sego expects drilling to start in mid-October 2026. The programme is fully financed and will test the deep IP targets identified by the recent survey.
What is the significance of the IP anomalies?
IP chargeability anomalies can indicate the presence of disseminated sulphide minerals, which are often associated with porphyry copper-gold mineralisation. The size and depth of the anomalies at Miner Mountain suggest they may represent deeper parts of a mineralised system.
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