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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  12-Mar-2018 by Karl A. Flower (KAF)

Summary Help Help

NMI
Name SNOW, A, MO Mining Division Lillooet
BCGS Map 092J049
Status Showing NTS Map 092J08E
Latitude 050º 25' 11'' UTM 10 (NAD 83)
Longitude 122º 12' 39'' Northing 5585597
Easting 556063
Commodities Molybdenum, Copper Deposit Types L08 : Porphyry Mo (Climax-type)
Tectonic Belt Coast Crystalline Terrane Plutonic Rocks, Bridge River
Capsule Geology

The Snow occurrence is located on the north side of a high ridge, 5 kilometres east of the eastern end of Duffey Lake, at an approximately elevation of 2400 metres.

The region is underlain by rocks of the Mississippian to Jurassic Bridge River Complex, intruded by dominantly granodioritic stocks of the Jurassic to Tertiary Coast Plutonic Complex.

Locally, a 250 by 150- metre wide mineralized zone is hosted by granodiorite that has been intruded by aplite and basalt dikes. Biotite schist within the granodiorite is thought to be a remnant of Bridge River Complex rocks preserved as a roof pendant. Mineralization consists of disseminated to blobby molybdenite, pyrrhotite, pyrite and minor chalcopyrite in quartz veins and stringers within weakly sericitized, kaolinized and silicified granodiorite. Minor amounts of potassic alteration, expressed as secondary biotite, also occur in wallrock.

In 1980, rock samples yielded up to 0.227 per cent molybdenum (Sample SR-46; Assessment Report 8340). The following year, diamond drilling yielded up to 0.144 per cent molybdenum over 2.0 metres (Assessment Report 10095)

In 1970, Seton Mines completed a 22.9 line-kilometre ground electromagnetic survey on the area as the A claims. In 1980 and 1981, Denison Mines completed programs of geochemical sampling, geological mapping and two diamond drill holes, totalling 539.6 metres, on the area as the Snow claims. In 2006, 606896 B.C. Limited completed a 3.1 line-kilometre induced polarization survey on the area as the Mo 1-12 claims. In 2008, Pacific Cascade Minerals completed a 343.0 line-kilometre airborne magnetic survey on the area.

Bibliography
EMPR ASS RPT 2618, *8340, *10095, 29080, 30269
GSC OF 482

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