Silver47 Exploration Corp. announced results from two diamond drill core holes at the West Tundra Flats resource area for a combined 331m at its wholly owned Red Mountain Project in Alaska, USA. Both drill holes cut high-grade silver-zinc-lead-gold-copper zones within a wider sulfide mineralization horizon.
Highlights from 2024 West Tundra Flats Drill Holes: WT24-33 returned a 22.03m interval of sulfide mineralization grading 177.10 g/t AgEq (57.5 g/t silver, 0.14 g/t gold 1.6% zinc, 0.67% lead, 0.09% copper) Including 2.90m of 1,078.8 g/t AgEq from 121.70m depth (417.4 g/t silver, 0.74 g/t gold, 9.1% zinc, 4.7% lead, 0.105% copper) WT24-34 returned 4.37m 656.2 g/t AgEq from 92.25m depth Including 1.47m of 1,488.4 g/t AgEq (356 g/t silver, 2.9 g/t gold, 13.7% zinc, 6.2% lead, 0.16% copper) West Tundra Flats Resource Area The West Tundra Flats prospect was first identified in 1981 as a surface gossan on the south bank of Dry Creek. Volcanogenic Massive Sulphide (VMS) mineralization was initially confirmed by widespread geochemical sampling and later drill tested in 1982, with zone expansion drilling in 1983. The mineralized horizon consists of semi-massive to massive sulfides including pyrite, sphalerite and galena, and is commonly enriched with silver and gold.
This horizon historically occurs at the base of a black chlorite schist and overlying a metarhyolite in the upper formations of the Totatlanika Schist. The surface expression has a 1,000m strike and dips shallowly to the southwest for at least 1,600m. The West Tundra Flats horizon remains open laterally and at depth, and exhibits pinching and swelling of sulfide lenses typical of VMS mineralization.
Hole WT24-33 was planned as a confirmation twin of hole WTF82-08 in the West Tundra Flats deposit. WTF82-08 intersected 7.3m of 334.8 g/t silver, 0.54 g/t gold, 3.48% zinc and 1.94% lead, including 1.8m of 1,313.1 g/t silver, 1.85 g/t gold, 11.1% zinc and 6.6% lead. Hole 33 cut regionally metamorphosed metasediments and metavolcanics consistent with the Totatlanika Schist.
Comprised primarily of grey aphanitic phyllite with lesser graphitic intercalations and beds. Significant sulfides were first intersected at 102m, with laminations and sporadic 1-4cm beds of pyrite and chalcopyrite, including a 2m interval grading up to 0.4% copper and 94.8 AgEq. At 121.7m depth, a 2.9m sphalerite-pyrite-galena massive sulfide unit was intercepted grading 1,078.8 g/t AgEq (417.4 g/t silver, 0.74 g/t gold, 9.1% zinc, 4.7% lead, 0.105% copper).
The massive sulfide was truncated abruptly by a fault containing clasts of mineralization. The rock units and grade in WT24-33 matched what was expected from the historic log for WTF82-08, though a wider mineralized halo is observed in hole 33. Core recovery through the mineralized zone in hole 33 was significantly improved from the historic hole.
The modern drilling methodology applied in the 2024 campaign achieved excellent core recovery across the property and will provide higher quality data as infill and expansion drilling progresses at West Tundra Flats Zone. Technical Discussion on Hole WT24-34 Hole WT24-34 was designed to test the resource model at West Tundra Flats by stepping back 80m southwest from hole WT18-28 that yielded 3.5m of 517.5 g/t Ag, 2.05 g/t Au, 21.60 Zn+Pb. The upper portion of the hole passes through the regionally metamorphosed metasediments and metavolcanics of the Totatlanika Schist.
A known metarhyolite marker unit observed throughout the target area was encountered immediately above the massive sulfide intercept, with increasing sericitization and silicification downhole and containing bands of disseminated pyrite and trace sphalerite. Galena- sphalerite-pyrite semi-massive to massive sulfide was intercepted from 92.25m to 96.06m, with a 1.47m high-grade interval from 94.59m to 96.06m grading 356 g/t silver, 2.9 g/t gold, 13.7% zinc, and 6.2% lead. Historical drilling at West Tundra Flats was completed with vertical holes at very wide spacing (150m to 250m between holes), and the continuity of both thickness and grade from this first infill hole provides confidence in the resource model for future infill drill planning.