Torr conducts survey, rock grab sampling at Kolos
Executive Summary
- Torr Metals reports surface rock‑grab samples from the Bertha zone returning up to 16.9 % Cu and 8.48 g/t Ag, confirming high‑grade copper mineralization in historic pit material.
- An induced‑polarization (IP) geophysical survey identified a >900 m strike × >500 m width chargeability anomaly that remains open at depth, intersecting resistivity highs and a magnetic low—interpreted as a prime, untested porphyry target.
- The combined geochemical and geophysical data provide the basis for planning an inaugural drilling program to test the newly defined target area.
Key Details
- Rock‑Grab Sampling (Bertha zone)
- Six samples collected from quartz‑carbonate veins over a 30 m strike length.
- Highest assay: 16.9 % Cu and 8.48 g/t Ag; four samples > 3 % Cu, all > 1 % Cu.
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Historical pit production: 30 t averaging 2.14 % Cu and 27.43 g/t Ag.
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IP Geophysical Survey
- Chargeability anomaly exceeds 900 m in strike and 500 m in width; central zone > 750 m where key structures intersect.
- Anomaly appears tabular, strengthens eastward, open to the surface and down‑dip/down‑plunge (> 600 m vertical depth).
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Co‑located resistivity high (500–700 Ω·m) suggests intrusive source or secondary porosity.
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Structural & Alteration Context
- All samples dominated by chalcocite mineralization; four > 3 % Cu, indicating supergene enrichment along vein networks.
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Target lies within Late Triassic‑Early Jurassic Nicola Group volcanic unit, consistent with a broad supergene blanket over a porphyry system.
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Untested Porphyry Target
- Southeast of historic pit: hydrothermal alteration footprint coincides with overlapping chargeability (10–20 mV/V) and resistivity anomalies along magnetic low margins.
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Defined target area ≈ 0.7 km²; considered high‑priority for drilling to test for a potential alkalic porphyry similar to New Afton.
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Comparative Geophysics
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New Afton deposit shows moderate chargeability (10–15 mV/V) with occasional peaks up to 25 mV/V; Bertha’s 7–20 mV/V range aligns with productive zones, especially when overlapping resistivity anomalies.
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QA/QC
- Samples analyzed by ALS Global Laboratories (ISO/IEC 17025:2017 & ISO 9001:2015 accredited).
- Digestion via aqua regia; analysis by ICP‑MS and ICP‑AES under code AuME‑TL43.
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No significant QA/QC issues identified.
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Qualified Person
- Technical content reviewed and approved by Michael Dufresne, MSc, PGeol, PGeo (consultant, NI 43‑101 qualified person).
Notable Quotes
“The confirmation of high‑grade copper at surface and identification of a large 0.7‑square‑kilometre IP geophysical anomaly at Bertha represent a major step forward in defining the untested potential of this area,” – Malcolm Dorsey, President & CEO.
“We now have the geochemical and geophysical data needed to plan drill targets in preparation for an inaugural drilling program at Bertha, the first to test this previously untouched target.” – Malcolm Dorseer.