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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  15-Apr-2020 by George Owsiacki (GO)

Summary Help Help

NMI 104O16 Ag3
Name LUCKY, LUCK, KLONDIKE SILVER, LUCKY SWITCHBACK Mining Division Liard
BCGS Map 104O098
Status Showing NTS Map 104O16W
Latitude 059º 59' 24'' UTM 09 (NAD 83)
Longitude 130º 27' 06'' Northing 6651186
Easting 419009
Commodities Silver, Lead, Zinc, Copper Deposit Types I05 : Polymetallic veins Ag-Pb-Zn+/-Au
Tectonic Belt Omineca Terrane Cassiar
Capsule Geology

The Luck occurrence is located on a branch of the Tootsee River, near and south of the Yukon-British Columbia border.

Silver-bearing, oxidized, chlorite-clay gouge/alteration zones and quartz-carbonate veins occur in sheared, saussuritized granodiorite of the Early Cretaceous Cassiar batholith. Sulphides are generally oxidized but galena and minor sphalerite and tetrahedrite are found locally. One rotary percussion-drill hole intersection (LK-85-3) across 4.5 metres of quartz-carbonate vein and sericite-limonite-chlorite alteration assayed 433.7 grams per tonne silver over 1.5 metres, with the next 1.5 metre interval assaying 8.0 grams per tonne silver (Assessment Report 14165).

In 1983-84, a Mr. Poulin constructed a road to the Lucky 1 showing where a small open pit was cut into the hill. In 1985, United Keno Hill Mines examined the Lucky prospect where a 1100 by 550 metre grid was established over the projected vein zone. The area was geologically mapped, soil sampled, and VLF and magnetic surveys carried out. A subsequent trenching of the conductors revealed a strong altered vein zone. Eight rotary percussion-drill holes totalling 387 metres tested the Lucky vein on four lines over a 350-metre strike length.

In 2016, a one-day reconnaissance prospecting trip was completed to assess surface access, locate historic trenches and drillholes, and attempt to confirm the historic high grade silver values reported by previous workers. Two trenches, presumably from the last exploration program on the property in 1985 were located, but are now sloughed in. None of the drillholes from that program (ca. 1985) were conclusively located, although their general location could be surmised. A traverse was done to try to locate any of the float trains identified by previous workers that had returned high grade silver values. Roughly fist-sized, heavily oxidized nodules of massive galena in float were found in four locations. Based on the analytical results of the four float samples, the extremely high silver grades reported by previous workers has been confirmed. A sample of float (LK-16-R2) from the 2016 program assayed 17,088 grams per tonne silver, greater than 10 per cent lead, 0.84 per cent zinc and 0.62 per cent copper (Assessment Report 36293).

Bibliography
EMPR GEM 1972-560; 1973-517; 1974-352
EMPR ASS RPT 3843, 5095, *14165, 36293
EMPR OF 1987-5; 1996-11
EMPR MP MAP 1992-12
EMPR FIELDWORK 1986, p. 191; 1987, pp. 353-360, 525-527
EMPR BULL 83
GSC P 68-55
GSC MAP 18-1968
GSC OF 561; 2779
Yukon Geology and Exploration, 1983, DIAND, pp. 34-44
EMPR PFD 503883

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