Winshear identifies geochemical anomaly at Thunder Bay
Executive Summary
- Winshear Gold Corp. announced a regional‑scale gold geochemical anomaly (“Inflection”) spanning ~6 km at its Thunder Bay Gold Project (TBGP) in Northwestern Ontario, with till samples up to 44 ppb Au.
- The company will launch a Phase II follow‑up program within two weeks, targeting ~150 till samples, 600 B‑horizon soils and 250 prospecting samples, plus drone‑based airborne magnetic surveys on the Inflection and El Dorado targets.
- Additional anomalies were identified at the El Dorado target (historic up to 36.3 g/t Au in quartz veins) and in central/northern parts of TBGP, prompting further sampling and structural work.
Key Details
- Inflection Target:
- Gold‑in‑till values up to 44 ppb Au over a 6 km strike length.
- Located at the convergence of several east‑southeast and west‑southwest trending structures.
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Underlain by felsic to intermediate volcanics, clastic metasediments, and komatiitic ultramafic rocks; historic mapping shows abundant stockwork quartz veining.
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El Dorado Target:
- Recent rock and till geochemistry shows modest Au, Ag, Cu values warranting follow‑up.
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Historical OGS sampling reported up to 36.3 g/t Au in arsenopyrite‑bearing quartz veins (MDI152A10SW00032).
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Central & Northern Areas:
- Low‑density till samples reveal anomalous gold‑in‑till; targets lie near strong magnetic lineaments.
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Sparse government mapping; additional sampling planned to delineate anomaly extents.
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Phase II Exploration Program (to start within two weeks):
- ~150 till samples, 600 B‑horizon soil samples, and 250 prospecting rock samples to be collected.
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Evaluation of drone‑based airborne magnetic surveys for Inflection and El Dorado areas to improve structural models.
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Analytical Methods:
- Till sampling performed with pickaxes/shovels, ~3 kg unweathered basal till per sample; stored securely before shipment to Actlabs (Ancaster, ON).
- Gold assayed by Actlabs’ 1A2 fire assay (30 g sample, detection limit 5 ppb Au).
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Multi‑element analysis via Actlabs’ 1E3 ICP‑OES method covering 38 elements (including Ag, As, Co, Cu, Mo, Ni, Pb, Sb, Zn).
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Project Context:
- TBGP lies on the eastern extension of the Archean Shebandowan greenstone belt, a region with limited historic exploration but known for orogenic gold, volcanogenic massive sulfides, and Ni‑Cu‑Co sulphide potential.
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Historical high‑grade gold (>1 oz/t Au) reported at Gold Hill and Eldorado prospects; structural setting analogous to other gold‑rich Abitibi belts.
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Qualified Person: J. Patricio Varas, PGeo (President & Technical Adviser), NI 43‑101 qualified, has reviewed the technical content but notes that sample data have not been independently verified and will be re‑tested in future work.
Notable Quotes
“Results from the initial reconnaissance geochemical survey at TBGP are very encouraging, and confirm management's belief that the magnetic and structural character of the project reflects a highly prospective exploration environment.” – Richard Williams, CEO, Winshear Gold Corp.
“The Inflection target… has a large footprint and is located directly over an area where several major structures converge. We will now commence more detailed soil geochemistry and an airborne magnetic survey to vector toward the bedrock source(s) of the anomalies.” – Richard Williams, CEO.