The mining newspaper for Alaska and Canada's North
The mining newspaper for Alaska and Canada's North
Tom may hold similar discovery as Boundary, continuous zone North of 60 Mining News – February 2, 2024
Fireweed drilled 52 holes at the Tom, Jason, and Boundary targets during the 2023 program at Macmillan Pass.
Click image to see larger map of Tom deposit and associated Tom West and Tom Southeast zones.
Fireweed Metals Corp. Feb. 1 announced that the final results from the 2023 drilling at the Tom and Jason deposits on the company's Macmillan Pass zinc-lead-silver project in Yukon, Canada, returned possibly one of the most significant discoveries at the Tom deposit in decades.
Accumulating more data for an updated resource estimate, the 2023 program utilized five rigs to complete more than 22,500 meters of diamond drilling at the Boundary, Tom, and Jason deposits at Macmillan Pass.
Considering the success of the 2023 drilling at Boundary, the continuous zones of mineralization are becoming commonplace at Macmillan Pass.
"The intersection of continuous high-grade feeder style mineralization at Tom South is arguably one of the most significant discoveries at this deposit in decades and is a more than 100-metre step-out beyond the known Tom resource," said Fireweed Metals CEO Brandon Macdonald. "These intercepts provide a tantalizing glimpse that Tom Southeast and Tom West may form a continuous zone of stratiform and massive sulphide mineralization connected around a fold hinge at Tom South."
The two most advanced deposits at MacPass, Tom and Jason host 11.2 million metric tons of indicated resource averaging 6.59% (1.63 billion pounds) zinc, 2.48% (620 million lb) lead, and 21.33 grams per metric ton (7.7 million ounces) silver; plus 39.5 million metric tons of inferred resource averaging 5.84% (5.08 billion lb) zinc, 3.14% (2.73 billion lb) lead, and 38.15 g/t (48.4 million oz) silver.
Fireweed says the mineralization from drilling at Tom West, Tom South, and Jason South primarily comprised stratiform and massive sulfides.
At Tom West and South, this mineralization apparently formed a continuous steeply dipping domain with sharp margins, occurring from surface to at least 750 meters deep, and across a strike length of 1,500 meters.
Jason South, mineralization occurs as a series of steeply dipping stratiform lenses from 250 meters below surface to a depth of at least 730 meters and a strike length of 450 meters.
From the latest results, drill holes were located at these specified targets – Tom West, Tom South, and Jason South – targeting the stratiform and massive sulfides with a focus on step outs from the current resource area last updated in 2018.
Highlights from the flagship target drilling include:
• 17.95 meters (14 meters estimated true width) averaging 11.45% zinc, 5.86% lead, and 126.3 g/t silver from a depth of 719 meters in hole TS23-009.
• 18.78 meters (9.8 meters est. true width) averaging 9.82% zinc, 11.65% lead, and 180.1 g/t silver from 794.2 meters in TS23-009D2.
• 20.7 meters (20 meters est. true width) averaging 4.83% zinc, 3.32% lead, and 52.4 g/t silver from 728.6 meters in TS23-009D1.
• 25.57 meters averaging 3.75% zinc. 2.50% lead, and 30.7 g/t silver from 596 meters in JS23-001D1.
• 31.58 meters (19 meters est. true width) averaging 4.49% zinc and 0.53% lead from 161.2 meters in TS23-007.
• 24.47 meters (21 meters est. true width) averaging 4.16% zinc, 2% lead and 6.2 g/t silver from 102 meters in TS23-006.
• 29.7 meters (22 meters est. true width) averaging 3.59% zinc and 0.31% lead from 261.8 meters in TS23-003.
• 22.10 meters (19 meters est. true width) averaging 2.86% zinc and 0.12% lead from 343 meters in TS23-008.
• 17.12 meters (16 meters est. true width) averaging 3.72% zinc from 311.9 meters in TS23-005.
• 11.76 meters (8.7 meters est. true width) averaging 3.33% zinc, 0.32% lead and 1.5 g/t silver from 305.74 meters in TS23-004.
While holes TS23-009, 009D1, and 009D2 stepped out from an isolated intersection in historical hole TS90-12, which was not included in the 2018 resource calculation, all three intersected high-grade stratiform and massive sulfides, supporting the idea there may be a continuous domain of mineralization outside of the 2018 calculation that remains open along strike.
"We are excited at the prospect of exploring this concept in 2024 and are reminded that despite generations of work, the Tom and Jason deposits may still have surprises in store for us," finished Macdonald.
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